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remove nuklear source

This commit is contained in:
Anthony Pesch 2017-06-08 01:28:02 -04:00
parent 0e9142fca5
commit e16994e356
93 changed files with 0 additions and 42189 deletions
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# Github language settings
*.h linguist-language=c
*.c linguist-language=c

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demo/*/*.exe
demo/*/*.obj

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language: c
os:
- linux
compiler:
- gcc
- clang
before_install:
- if [ $TRAVIS_OS_NAME == linux ]; then sudo add-apt-repository -y ppa:pyglfw/pyglfw && sudo apt-get update -qq && sudo apt-get install -y --no-install-recommends libglfw3 libglfw3-dev libglew-dev; fi
script:
- make -C demo/glfw_opengl3
- make -C demo/glfw_opengl2

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# Changelog
- 2016/12/31 (1.20) - Extended scrollbar offset from 16-bit to 32-bit
- 2016/12/31 (1.192)- Fixed closing window bug of minimized windows
- 2016/12/03 (1.191)- Fixed wrapped text with no seperator and C89 error
- 2016/12/03 (1.19) - Changed text wrapping to process words not characters
- 2016/11/22 (1.184)- Fixed window minimized closing bug
- 2016/11/19 (1.184)- Fixed abstract combo box closing behavior
- 2016/11/19 (1.184)- Fixed tooltip flickering
- 2016/11/19 (1.183)- Fixed memory leak caused by popup repeated closing
- 2016/11/18 (1.182)- Fixed memory leak caused by popup panel allocation
- 2016/11/10 (1.181)- Fixed some warnings and C++ error
- 2016/11/10 (1.180)- Added additional `nk_button` versions which allows to directly
pass in a style struct to change buttons visual.
- 2016/11/10 (1.180)- Added additional 'nk_tree' versions to support external state
storage. Just like last the `nk_group` commit the main
advantage is that you optionally can minimize nuklears runtime
memory consumption or handle hash collisions.
- 2016/11/09 (1.180)- Added additional `nk_group` version to support external scrollbar
offset storage. Main advantage is that you can externalize
the memory management for the offset. It could also be helpful
if you have a hash collision in `nk_group_begin` but really
want the name. In addition I added `nk_list_view` which allows
to draw big lists inside a group without actually having to
commit the whole list to nuklear (issue #269).
- 2016/10/30 (1.171)- Fixed clipping rectangle bug inside `nk_draw_list`
- 2016/10/29 (1.170)- Pulled `nk_panel` memory management into nuklear and out of
the hands of the user. From now on users don't have to care
about panels unless they care about some information. If you
still need the panel just call `nk_window_get_panel`.
- 2016/10/21 (1.160)- Changed widget border drawing to stroked rectangle from filled
rectangle for less overdraw and widget background transparency.
- 2016/10/18 (1.160)- Added `nk_edit_focus` for manually edit widget focus control
- 2016/09/29 (1.157)- Fixed deduction of basic type in non `<stdint.h>` compilation
- 2016/09/29 (1.156)- Fixed edit widget UTF-8 text cursor drawing bug
- 2016/09/28 (1.156)- Fixed edit widget UTF-8 text appending/inserting/removing
- 2016/09/28 (1.156)- Fixed drawing bug inside edit widgets which offset all text
text in every edit widget if one of them is scrolled.
- 2016/09/28 (1.155)- Fixed small bug in edit widgets if not active. The wrong
text length is passed. It should have been in bytes but
was passed as glyphes.
- 2016/09/20 (1.154)- Fixed color button size calculation
- 2016/09/20 (1.153)- Fixed some `nk_vsnprintf` behavior bugs and removed
`<stdio.h>` again from `NK_INCLUDE_STANDARD_VARARGS`.
- 2016/09/18 (1.152)- C89 does not support vsnprintf only C99 and newer as well
as C++11 and newer. In addition to use vsnprintf you have
to include <stdio.h>. So just defining `NK_INCLUDE_STD_VAR_ARGS`
is not enough. That behavior is now fixed. By default if
both varargs as well as stdio is selected I try to use
vsnprintf if not possible I will revert to vsprintf. If
varargs but not stdio was defined I will use my own function.
- 2016/09/15 (1.151)- Fixed panel `close` behavior for deeper panel levels
- 2016/09/15 (1.151)- Fixed C++ errors and wrong argument to `nk_panel_get_xxxx`
- 2016/09/13 (1.15) - !BREAKING! Fixed nonblocking popup behavior in menu, combo,
and contextual which prevented closing in y-direction if
popup did not reach max height.
In addition the height parameter was changed into vec2
for width and height to have more control over the popup size.
- 2016/09/13 (1.15) - Cleaned up and extended type selection
- 2016/09/13 (1.141)- Fixed slider behavior hopefully for the last time. This time
all calculation are correct so no more hackery.
- 2016/09/13 (1.141)- Internal change to divide window/panel flags into panel flags and types.
Suprisinly spend years in C and still happened to confuse types
with flags. Probably something to take note.
- 2016/09/08 (1.14)- Added additional helper function to make it easier to just
take the produced buffers from `nk_convert` and unplug the
iteration process from `nk_context`. So now you can
just use the vertex,element and command buffer + two pointer
inside the command buffer retrieved by calls `nk__draw_begin`
and `nk__draw_end` and macro `nk_draw_foreach_bounded`.
- 2016/09/08 (1.14)- Added additional asserts to make sure every `nk_xxx_begin` call
for windows, popups, combobox, menu and contextual is guarded by
`if` condition and does not produce false drawing output.
- 2016/09/08 (1.14)- Changed confusing name for `NK_SYMBOL_RECT_FILLED`, `NK_SYMBOL_RECT`
to hopefully easier to understand `NK_SYMBOL_RECT_FILLED` and
`NK_SYMBOL_RECT_OUTLINE`.
- 2016/09/08 (1.14)- Changed confusing name for `NK_SYMBOL_CIRLCE_FILLED`, `NK_SYMBOL_CIRCLE`
to hopefully easier to understand `NK_SYMBOL_CIRCLE_FILLED` and
`NK_SYMBOL_CIRCLE_OUTLINE`.
- 2016/09/08 (1.14)- Added additional checks to select correct types if `NK_INCLUDE_FIXED_TYPES`
is not defined by supporting the biggest compiler GCC, clang and MSVC.
- 2016/09/07 (1.133)- Fixed `NK_INCLUDE_COMMAND_USERDATA` define to not cause an error
- 2016/09/04 (1.132)- Fixed wrong combobox height calculation
- 2016/09/03 (1.131)- Fixed gaps inside combo boxes in OpenGL
- 2016/09/02 (1.13) - Changed nuklear to not have any default vertex layout and
instead made it user provided. The range of types to convert
to is quite limited at the moment, but I would be more than
happy to accept PRs to add additional.
- 2016/08/30 (1.12) - Removed unused variables
- 2016/08/30 (1.12) - Fixed C++ build errors
- 2016/08/30 (1.12) - Removed mouse dragging from SDL demo since it does not work correctly
- 2016/08/30 (1.12) - Tweaked some default styling variables
- 2016/08/30 (1.12) - Hopefully fixed drawing bug in slider, in general I would
refrain from using slider with a big number of steps.
- 2016/08/30 (1.12) - Fixed close and minimize button which would fire even if the
window was in Read Only Mode.
- 2016/08/30 (1.12) - Fixed popup panel padding handling which was previously just
a hack for combo box and menu.
- 2016/08/30 (1.12) - Removed `NK_WINDOW_DYNAMIC` flag from public API since
it is bugged and causes issues in window selection.
- 2016/08/30 (1.12) - Removed scaler size. The size of the scaler is now
determined by the scrollbar size
- 2016/08/30 (1.12) - Fixed some drawing bugs caused by changes from 1.11
- 2016/08/30 (1.12) - Fixed overlapping minimized window selection
- 2016/08/30 (1.11) - Removed some internal complexity and overly complex code
handling panel padding and panel border.
- 2016/08/29 (1.10) - Added additional height parameter to `nk_combobox_xxx`
- 2016/08/29 (1.10) - Fixed drawing bug in dynamic popups
- 2016/08/29 (1.10) - Added experimental mouse scrolling to popups, menus and comboboxes
- 2016/08/26 (1.10) - Added window name string prepresentation to account for
hash collisions. Currently limited to NK_WINDOW_MAX_NAME
which in term can be redefined if not big enough.
- 2016/08/26 (1.10) - Added stacks for temporary style/UI changes in code
- 2016/08/25 (1.10) - Changed `nk_input_is_key_pressed` and 'nk_input_is_key_released'
to account for key press and release happening in one frame.
- 2016/08/25 (1.10) - Added additional nk_edit flag to directly jump to the end on activate
- 2016/08/17 (1.096)- Removed invalid check for value zero in nk_propertyx
- 2016/08/16 (1.095)- Fixed ROM mode for deeper levels of popup windows parents.
- 2016/08/15 (1.094)- Editbox are now still active if enter was pressed with flag
`NK_EDIT_SIG_ENTER`. Main reasoning is to be able to keep
typing after commiting.
- 2016/08/15 (1.094)- Removed redundant code
- 2016/08/15 (1.094)- Fixed negative numbers in `nk_strtoi` and remove unused variable
- 2016/08/15 (1.093)- Fixed `NK_WINDOW_BACKGROUND` flag behavior to select a background
window only as selected by hovering and not by clicking.
- 2016/08/14 (1.092)- Fixed a bug in font atlas which caused wrong loading
of glyphes for font with multiple ranges.
- 2016/08/12 (1.091)- Added additional function to check if window is currently
hidden and therefore not visible.
- 2016/08/12 (1.091)- nk_window_is_closed now queries the correct flag `NK_WINDOW_CLOSED`
instead of the old flag `NK_WINDOW_HIDDEN`
- 2016/08/09 (1.09) - Added additional double version to nk_property and changed
the underlying implementation to not cast to float and instead
work directly on the given values.
- 2016/08/09 (1.08) - Added additional define to overwrite library internal
floating pointer number to string conversion for additional
precision.
- 2016/08/09 (1.08) - Added additional define to overwrite library internal
string to floating point number conversion for additional
precision.
- 2016/08/08 (1.072)- Fixed compiling error without define NK_INCLUDE_FIXED_TYPE
- 2016/08/08 (1.071)- Fixed possible floating point error inside `nk_widget` leading
to wrong wiget width calculation which results in widgets falsly
becomming tagged as not inside window and cannot be accessed.
- 2016/08/08 (1.07) - Nuklear now differentiates between hiding a window (NK_WINDOW_HIDDEN) and
closing a window (NK_WINDOW_CLOSED). A window can be hidden/shown
by using `nk_window_show` and closed by either clicking the close
icon in a window or by calling `nk_window_close`. Only closed
windows get removed at the end of the frame while hidden windows
remain.
- 2016/08/08 (1.06) - Added `nk_edit_string_zero_terminated` as a second option to
`nk_edit_string` which takes, edits and outputs a '\0' terminated string.
- 2016/08/08 (1.054)- Fixed scrollbar auto hiding behavior
- 2016/08/08 (1.053)- Fixed wrong panel padding selection in `nk_layout_widget_space`
- 2016/08/07 (1.052)- Fixed old bug in dynamic immediate mode layout API, calculating
wrong item spacing and panel width.
- 2016/08/07 (1.051)- Hopefully finally fixed combobox popup drawing bug
- 2016/08/07 (1.05) - Split varargs away from NK_INCLUDE_STANDARD_IO into own
define NK_INCLUDE_STANDARD_VARARGS to allow more fine
grained controlled over library includes.
- 2016/08/06 (1.045)- Changed memset calls to NK_MEMSET
- 2016/08/04 (1.044)- Fixed fast window scaling behavior
- 2016/08/04 (1.043)- Fixed window scaling, movement bug which appears if you
move/scale a window and another window is behind it.
If you are fast enough then the window behind gets activated
and the operation is blocked. I now require activating
by hovering only if mouse is not pressed.
- 2016/08/04 (1.042)- Fixed changing fonts
- 2016/08/03 (1.041)- Fixed `NK_WINDOW_BACKGROUND` behavior
- 2016/08/03 (1.04) - Added color parameter to `nk_draw_image`
- 2016/08/03 (1.04) - Added additional window padding style attributes for
sub windows (combo, menu, ...)
- 2016/08/03 (1.04) - Added functions to show/hide software cursor
- 2016/08/03 (1.04) - Added `NK_WINDOW_BACKGROUND` flag to force a window
to be always in the background of the screen
- 2016/08/03 (1.032)- Removed invalid assert macro for NK_RGB color picker
- 2016/08/01 (1.031)- Added helper macros into header include guard
- 2016/07/29 (1.03) - Moved the window/table pool into the header part to
simplify memory management by removing the need to
allocate the pool.
- 2016/07/29 (1.03) - Added auto scrollbar hiding window flag which if enabled
will hide the window scrollbar after NK_SCROLLBAR_HIDING_TIMEOUT
seconds without window interaction. To make it work
you have to also set a delta time inside the `nk_context`.
- 2016/07/25 (1.02) - Fixed small panel and panel border drawing bugs
- 2016/07/15 (1.01) - Added software cursor to `nk_style` and `nk_context`
- 2016/07/15 (1.01) - Added const correctness to `nk_buffer_push' data argument
- 2016/07/15 (1.01) - Removed internal font baking API and simplified
font atlas memory management by converting pointer
arrays for fonts and font configurations to lists.
- 2016/07/15 (1.01) - Changed button API to use context dependend button
behavior instead of passing it for every function call.

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[![Build Status](https://travis-ci.org/vurtun/nuklear.svg)](https://travis-ci.org/vurtun/nuklear)
# Nuklear
This is a minimal state immediate mode graphical user interface toolkit
written in ANSI C and licensed under public domain. It was designed as a simple
embeddable user interface for application and does not have any dependencies,
a default renderbackend or OS window and input handling but instead provides a very modular
library approach by using simple input state for input and draw
commands describing primitive shapes as output. So instead of providing a
layered library that tries to abstract over a number of platform and
render backends it only focuses on the actual UI.
## Features
- Immediate mode graphical user interface toolkit
- Single header library
- Written in C89 (ANSI C)
- Small codebase (~15kLOC)
- Focus on portability, efficiency and simplicity
- No dependencies (not even the standard library if not wanted)
- Fully skinnable and customizable
- Low memory footprint with total memory control if needed or wanted
- UTF-8 support
- No global or hidden state
- Customizable library modules (you can compile and use only what you need)
- Optional font baker and vertex buffer output
## Building
This library is self contained in one single header file and can be used either
in header only mode or in implementation mode. The header only mode is used
by default when included and allows including this header in other headers
and does not contain the actual implementation.
The implementation mode requires to define the preprocessor macro
`NK_IMPLEMENTATION` in *one* .c/.cpp file before `#include`ing this file, e.g.:
```c
#define NK_IMPLEMENTATION
#include "nuklear.h"
```
IMPORTANT: Every time you include "nuklear.h" you have to define the same optional flags.
This is very important not doing it either leads to compiler errors or even worse stack corruptions.
## Gallery
![screenshot](https://cloud.githubusercontent.com/assets/8057201/11761525/ae06f0ca-a0c6-11e5-819d-5610b25f6ef4.gif)
![screen](https://cloud.githubusercontent.com/assets/8057201/13538240/acd96876-e249-11e5-9547-5ac0b19667a0.png)
![screen2](https://cloud.githubusercontent.com/assets/8057201/13538243/b04acd4c-e249-11e5-8fd2-ad7744a5b446.png)
![node](https://cloud.githubusercontent.com/assets/8057201/9976995/e81ac04a-5ef7-11e5-872b-acd54fbeee03.gif)
![skinning](https://cloud.githubusercontent.com/assets/8057201/15991632/76494854-30b8-11e6-9555-a69840d0d50b.png)
![gamepad](https://cloud.githubusercontent.com/assets/8057201/14902576/339926a8-0d9c-11e6-9fee-a8b73af04473.png)
## Example
```c
/* init gui state */
struct nk_context ctx;
nk_init_fixed(&ctx, calloc(1, MAX_MEMORY), MAX_MEMORY, &font);
enum {EASY, HARD};
int op = EASY;
float value = 0.6f;
int i = 20;
if (nk_begin(&ctx, "Show", nk_rect(50, 50, 220, 220),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_CLOSABLE)) {
/* fixed widget pixel width */
nk_layout_row_static(&ctx, 30, 80, 1);
if (nk_button_label(&ctx, "button")) {
/* event handling */
}
/* fixed widget window ratio width */
nk_layout_row_dynamic(&ctx, 30, 2);
if (nk_option_label(&ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(&ctx, "hard", op == HARD)) op = HARD;
/* custom widget pixel width */
nk_layout_row_begin(&ctx, NK_STATIC, 30, 2);
{
nk_layout_row_push(&ctx, 50);
nk_label(&ctx, "Volume:", NK_TEXT_LEFT);
nk_layout_row_push(&ctx, 110);
nk_slider_float(&ctx, 0, &value, 1.0f, 0.1f);
}
nk_layout_row_end(&ctx);
}
nk_end(&ctx);
```
![example](https://cloud.githubusercontent.com/assets/8057201/10187981/584ecd68-675c-11e5-897c-822ef534a876.png)
## Bindings:
Java: https://github.com/glegris/nuklear4j
Golang: https://github.com/golang-ui/nuklear
Rust: https://github.com/snuk182/nuklear-rust
Chicken: https://github.com/wasamasa/nuklear
## Credits:
Developed by Micha Mettke and every direct or indirect contributor to the GitHub.
Embeds `stb_texedit`, `stb_truetype` and `stb_rectpack` by Sean Barret (public domain)
Embeds `ProggyClean.ttf` font by Tristan Grimmer (MIT license).
Big thank you to Omar Cornut (ocornut@github) for his [imgui](https://github.com/ocornut/imgui) library and
giving me the inspiration for this library, Casey Muratori for handmade hero
and his original immediate mode graphical user interface idea and Sean
Barret for his amazing single header [libraries](https://github.com/nothings/stb) which restored my faith
in libraries and brought me to create some of my own.
## License:
This software is dual-licensed to the public domain and under the following
license: you are granted a perpetual, irrevocable license to copy, modify,
publish and distribute this file as you see fit.

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/* nuklear - v1.00 - public domain */
static void
calculator(struct nk_context *ctx)
{
if (nk_begin(ctx, "Calculator", nk_rect(10, 10, 180, 250),
NK_WINDOW_BORDER|NK_WINDOW_NO_SCROLLBAR|NK_WINDOW_MOVABLE))
{
static int set = 0, prev = 0, op = 0;
static const char numbers[] = "789456123";
static const char ops[] = "+-*/";
static double a = 0, b = 0;
static double *current = &a;
size_t i = 0;
int solve = 0;
{int len; char buffer[256];
nk_layout_row_dynamic(ctx, 35, 1);
len = snprintf(buffer, 256, "%.2f", *current);
nk_edit_string(ctx, NK_EDIT_SIMPLE, buffer, &len, 255, nk_filter_float);
buffer[len] = 0;
*current = atof(buffer);}
nk_layout_row_dynamic(ctx, 35, 4);
for (i = 0; i < 16; ++i) {
if (i >= 12 && i < 15) {
if (i > 12) continue;
if (nk_button_label(ctx, "C")) {
a = b = op = 0; current = &a; set = 0;
} if (nk_button_label(ctx, "0")) {
*current = *current*10.0f; set = 0;
} if (nk_button_label(ctx, "=")) {
solve = 1; prev = op; op = 0;
}
} else if (((i+1) % 4)) {
if (nk_button_text(ctx, &numbers[(i/4)*3+i%4], 1)) {
*current = *current * 10.0f + numbers[(i/4)*3+i%4] - '0';
set = 0;
}
} else if (nk_button_text(ctx, &ops[i/4], 1)) {
if (!set) {
if (current != &b) {
current = &b;
} else {
prev = op;
solve = 1;
}
}
op = ops[i/4];
set = 1;
}
}
if (solve) {
if (prev == '+') a = a + b;
if (prev == '-') a = a - b;
if (prev == '*') a = a * b;
if (prev == '/') a = a / b;
current = &a;
if (set) current = &b;
b = 0; set = 0;
}
}
nk_end(ctx);
}

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@echo off
rem This will use VS2015 for compiler
call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
fxc.exe /nologo /T vs_4_0_level_9_0 /E vs /O3 /Zpc /Ges /Fh nuklear_d3d11_vertex_shader.h /Vn nk_d3d11_vertex_shader /Qstrip_reflect /Qstrip_debug /Qstrip_priv nuklear_d3d11.hlsl
fxc.exe /nologo /T ps_4_0_level_9_0 /E ps /O3 /Zpc /Ges /Fh nuklear_d3d11_pixel_shader.h /Vn nk_d3d11_pixel_shader /Qstrip_reflect /Qstrip_debug /Qstrip_priv nuklear_d3d11.hlsl
cl /D_CRT_SECURE_NO_DEPRECATE /nologo /W3 /O2 /fp:fast /Gm- /Fedemo.exe main.c user32.lib dxguid.lib d3d11.lib /link /incremental:no

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/* nuklear - v1.17 - public domain */
#define COBJMACROS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <d3d11.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_INDEX_BUFFER 128 * 1024
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_D3D11_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_d3d11.h"
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
static IDXGISwapChain *swap_chain;
static ID3D11Device *device;
static ID3D11DeviceContext *context;
static ID3D11RenderTargetView* rt_view;
static void
set_swap_chain_size(int width, int height)
{
ID3D11Texture2D *back_buffer;
D3D11_RENDER_TARGET_VIEW_DESC desc;
HRESULT hr;
if (rt_view)
ID3D11RenderTargetView_Release(rt_view);
ID3D11DeviceContext_OMSetRenderTargets(context, 0, NULL, NULL);
hr = IDXGISwapChain_ResizeBuffers(swap_chain, 0, width, height, DXGI_FORMAT_UNKNOWN, 0);
if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET || hr == DXGI_ERROR_DRIVER_INTERNAL_ERROR)
{
/* to recover from this, you'll need to recreate device and all the resources */
MessageBoxW(NULL, L"DXGI device is removed or reset!", L"Error", 0);
exit(0);
}
assert(SUCCEEDED(hr));
memset(&desc, 0, sizeof(desc));
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
hr = IDXGISwapChain_GetBuffer(swap_chain, 0, &IID_ID3D11Texture2D, &back_buffer);
assert(SUCCEEDED(hr));
hr = ID3D11Device_CreateRenderTargetView(device, (ID3D11Resource *)back_buffer, &desc, &rt_view);
assert(SUCCEEDED(hr));
ID3D11Texture2D_Release(back_buffer);
}
static LRESULT CALLBACK
WindowProc(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_SIZE:
if (swap_chain)
{
int width = LOWORD(lparam);
int height = HIWORD(lparam);
set_swap_chain_size(width, height);
nk_d3d11_resize(context, width, height);
}
break;
}
if (nk_d3d11_handle_event(wnd, msg, wparam, lparam))
return 0;
return DefWindowProcW(wnd, msg, wparam, lparam);
}
int main(void)
{
struct nk_context *ctx;
struct nk_color background;
WNDCLASSW wc;
RECT rect = { 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT };
DWORD style = WS_OVERLAPPEDWINDOW;
DWORD exstyle = WS_EX_APPWINDOW;
HWND wnd;
int running = 1;
HRESULT hr;
D3D_FEATURE_LEVEL feature_level;
DXGI_SWAP_CHAIN_DESC swap_chain_desc;
/* Win32 */
memset(&wc, 0, sizeof(wc));
wc.lpfnWndProc = WindowProc;
wc.hInstance = GetModuleHandleW(0);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.lpszClassName = L"NuklearWindowClass";
RegisterClassW(&wc);
AdjustWindowRectEx(&rect, style, FALSE, exstyle);
wnd = CreateWindowExW(exstyle, wc.lpszClassName, L"Nuklear Demo",
style | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT,
rect.right - rect.left, rect.bottom - rect.top,
NULL, NULL, wc.hInstance, NULL);
/* D3D11 setup */
memset(&swap_chain_desc, 0, sizeof(swap_chain_desc));
swap_chain_desc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swap_chain_desc.BufferDesc.RefreshRate.Numerator = 60;
swap_chain_desc.BufferDesc.RefreshRate.Denominator = 1;
swap_chain_desc.SampleDesc.Count = 1;
swap_chain_desc.SampleDesc.Quality = 0;
swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swap_chain_desc.BufferCount = 1;
swap_chain_desc.OutputWindow = wnd;
swap_chain_desc.Windowed = TRUE;
swap_chain_desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
swap_chain_desc.Flags = 0;
if (FAILED(D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE,
NULL, 0, NULL, 0, D3D11_SDK_VERSION, &swap_chain_desc,
&swap_chain, &device, &feature_level, &context)))
{
/* if hardware device fails, then try WARP high-performance
software rasterizer, this is useful for RDP sessions */
hr = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_WARP,
NULL, 0, NULL, 0, D3D11_SDK_VERSION, &swap_chain_desc,
&swap_chain, &device, &feature_level, &context);
assert(SUCCEEDED(hr));
}
set_swap_chain_size(WINDOW_WIDTH, WINDOW_HEIGHT);
/* GUI */
ctx = nk_d3d11_init(device, WINDOW_WIDTH, WINDOW_HEIGHT, MAX_VERTEX_BUFFER, MAX_INDEX_BUFFER);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_d3d11_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *robot = nk_font_atlas_add_from_file(atlas, "../../extra_font/Roboto-Regular.ttf", 14, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_d3d11_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &droid->handle)*/;}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (running)
{
/* Input */
MSG msg;
nk_input_begin(ctx);
while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE))
{
if (msg.message == WM_QUIT)
running = 0;
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 22, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
{/* Draw */
float bg[4];
nk_color_fv(bg, background);
ID3D11DeviceContext_ClearRenderTargetView(context, rt_view, bg);
ID3D11DeviceContext_OMSetRenderTargets(context, 1, &rt_view, NULL);
nk_d3d11_render(context, NK_ANTI_ALIASING_ON);
hr = IDXGISwapChain_Present(swap_chain, 1, 0);
if (hr == DXGI_ERROR_DEVICE_RESET || hr == DXGI_ERROR_DEVICE_REMOVED) {
/* to recover from this, you'll need to recreate device and all the resources */
MessageBoxW(NULL, L"D3D11 device is lost or removed!", L"Error", 0);
break;
} else if (hr == DXGI_STATUS_OCCLUDED) {
/* window is not visible, so vsync won't work. Let's sleep a bit to reduce CPU usage */
Sleep(10);
}
assert(SUCCEEDED(hr));}
}
ID3D11DeviceContext_ClearState(context);
nk_d3d11_shutdown();
ID3D11ShaderResourceView_Release(rt_view);
ID3D11DeviceContext_Release(context);
ID3D11Device_Release(device);
IDXGISwapChain_Release(swap_chain);
UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 0;
}

617
deps/nuklear/demo/d3d11/nuklear_d3d11.h vendored
View File

@ -1,617 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_D3D11_H_
#define NK_D3D11_H_
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
typedef struct ID3D11Device ID3D11Device;
typedef struct ID3D11DeviceContext ID3D11DeviceContext;
NK_API struct nk_context *nk_d3d11_init(ID3D11Device *device, int width, int height, unsigned int max_vertex_buffer, unsigned int max_index_buffer);
NK_API void nk_d3d11_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_d3d11_font_stash_end(void);
NK_API int nk_d3d11_handle_event(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
NK_API void nk_d3d11_render(ID3D11DeviceContext *context, enum nk_anti_aliasing);
NK_API void nk_d3d11_resize(ID3D11DeviceContext *context, int width, int height);
NK_API void nk_d3d11_shutdown(void);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_D3D11_IMPLEMENTATION
#define WIN32_LEAN_AND_MEAN
#define COBJMACROS
#include <d3d11.h>
#include <stddef.h>
#include <string.h>
#include <float.h>
#include <assert.h>
#include "nuklear_d3d11_vertex_shader.h"
#include "nuklear_d3d11_pixel_shader.h"
struct nk_d3d11_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct
{
struct nk_context ctx;
struct nk_font_atlas atlas;
struct nk_buffer cmds;
struct nk_draw_null_texture null;
unsigned int max_vertex_buffer;
unsigned int max_index_buffer;
D3D11_VIEWPORT viewport;
ID3D11Device *device;
ID3D11RasterizerState *rasterizer_state;
ID3D11VertexShader *vertex_shader;
ID3D11InputLayout *input_layout;
ID3D11Buffer *const_buffer;
ID3D11PixelShader *pixel_shader;
ID3D11BlendState *blend_state;
ID3D11Buffer *index_buffer;
ID3D11Buffer *vertex_buffer;
ID3D11ShaderResourceView *font_texture_view;
ID3D11SamplerState *sampler_state;
} d3d11;
NK_API void
nk_d3d11_render(ID3D11DeviceContext *context, enum nk_anti_aliasing AA)
{
const float blend_factor[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
const UINT stride = sizeof(struct nk_d3d11_vertex);
const UINT offset = 0;
ID3D11DeviceContext_IASetInputLayout(context, d3d11.input_layout);
ID3D11DeviceContext_IASetVertexBuffers(context, 0, 1, &d3d11.vertex_buffer, &stride, &offset);
ID3D11DeviceContext_IASetIndexBuffer(context, d3d11.index_buffer, DXGI_FORMAT_R16_UINT, 0);
ID3D11DeviceContext_IASetPrimitiveTopology(context, D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ID3D11DeviceContext_VSSetShader(context, d3d11.vertex_shader, NULL, 0);
ID3D11DeviceContext_VSSetConstantBuffers(context, 0, 1, &d3d11.const_buffer);
ID3D11DeviceContext_PSSetShader(context, d3d11.pixel_shader, NULL, 0);
ID3D11DeviceContext_PSSetSamplers(context, 0, 1, &d3d11.sampler_state);
ID3D11DeviceContext_OMSetBlendState(context, d3d11.blend_state, blend_factor, 0xffffffff);
ID3D11DeviceContext_RSSetState(context, d3d11.rasterizer_state);
ID3D11DeviceContext_RSSetViewports(context, 1, &d3d11.viewport);
/* Convert from command queue into draw list and draw to screen */
{/* load draw vertices & elements directly into vertex + element buffer */
D3D11_MAPPED_SUBRESOURCE vertices;
D3D11_MAPPED_SUBRESOURCE indices;
const struct nk_draw_command *cmd;
UINT offset = 0;
HRESULT hr;
hr = ID3D11DeviceContext_Map(context, (ID3D11Resource *)d3d11.vertex_buffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &vertices);
NK_ASSERT(SUCCEEDED(hr));
hr = ID3D11DeviceContext_Map(context, (ID3D11Resource *)d3d11.index_buffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &indices);
NK_ASSERT(SUCCEEDED(hr));
{/* fill converting configuration */
struct nk_convert_config config;
NK_STORAGE const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_d3d11_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_d3d11_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_d3d11_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
memset(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_d3d11_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_d3d11_vertex);
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.null = d3d11.null;
{/* setup buffers to load vertices and elements */
struct nk_buffer vbuf, ibuf;
nk_buffer_init_fixed(&vbuf, vertices.pData, (size_t)d3d11.max_vertex_buffer);
nk_buffer_init_fixed(&ibuf, indices.pData, (size_t)d3d11.max_index_buffer);
nk_convert(&d3d11.ctx, &d3d11.cmds, &vbuf, &ibuf, &config);}
}
ID3D11DeviceContext_Unmap(context, (ID3D11Resource *)d3d11.vertex_buffer, 0);
ID3D11DeviceContext_Unmap(context, (ID3D11Resource *)d3d11.index_buffer, 0);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, &d3d11.ctx, &d3d11.cmds)
{
D3D11_RECT scissor;
ID3D11ShaderResourceView *texture_view = (ID3D11ShaderResourceView *)cmd->texture.ptr;
if (!cmd->elem_count) continue;
scissor.left = (LONG)cmd->clip_rect.x;
scissor.right = (LONG)(cmd->clip_rect.x + cmd->clip_rect.w);
scissor.top = (LONG)cmd->clip_rect.y;
scissor.bottom = (LONG)(cmd->clip_rect.y + cmd->clip_rect.h);
ID3D11DeviceContext_PSSetShaderResources(context, 0, 1, &texture_view);
ID3D11DeviceContext_RSSetScissorRects(context, 1, &scissor);
ID3D11DeviceContext_DrawIndexed(context, (UINT)cmd->elem_count, offset, 0);
offset += cmd->elem_count;
}
nk_clear(&d3d11.ctx);}
}
static void
nk_d3d11_get_projection_matrix(int width, int height, float *result)
{
const float L = 0.0f;
const float R = (float)width;
const float T = 0.0f;
const float B = (float)height;
float matrix[4][4] =
{
{ 2.0f / (R - L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f / (T - B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R + L) / (L - R), (T + B) / (B - T), 0.5f, 1.0f },
};
memcpy(result, matrix, sizeof(matrix));
}
NK_API void
nk_d3d11_resize(ID3D11DeviceContext *context, int width, int height)
{
D3D11_MAPPED_SUBRESOURCE mapped;
if (SUCCEEDED(ID3D11DeviceContext_Map(context, (ID3D11Resource *)d3d11.const_buffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped)))
{
nk_d3d11_get_projection_matrix(width, height, (float *)mapped.pData);
ID3D11DeviceContext_Unmap(context, (ID3D11Resource *)d3d11.const_buffer, 0);
d3d11.viewport.Width = (float)width;
d3d11.viewport.Height = (float)height;
}
}
NK_API int
nk_d3d11_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
int down = !((lparam >> 31) & 1);
int ctrl = GetKeyState(VK_CONTROL) & (1 << 15);
switch (wparam)
{
case VK_SHIFT:
case VK_LSHIFT:
case VK_RSHIFT:
nk_input_key(&d3d11.ctx, NK_KEY_SHIFT, down);
return 1;
case VK_DELETE:
nk_input_key(&d3d11.ctx, NK_KEY_DEL, down);
return 1;
case VK_RETURN:
nk_input_key(&d3d11.ctx, NK_KEY_ENTER, down);
return 1;
case VK_TAB:
nk_input_key(&d3d11.ctx, NK_KEY_TAB, down);
return 1;
case VK_LEFT:
if (ctrl)
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_WORD_LEFT, down);
else
nk_input_key(&d3d11.ctx, NK_KEY_LEFT, down);
return 1;
case VK_RIGHT:
if (ctrl)
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else
nk_input_key(&d3d11.ctx, NK_KEY_RIGHT, down);
return 1;
case VK_BACK:
nk_input_key(&d3d11.ctx, NK_KEY_BACKSPACE, down);
return 1;
case VK_HOME:
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_START, down);
nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_START, down);
return 1;
case VK_END:
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_END, down);
nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_END, down);
return 1;
case VK_NEXT:
nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_DOWN, down);
return 1;
case VK_PRIOR:
nk_input_key(&d3d11.ctx, NK_KEY_SCROLL_UP, down);
return 1;
case 'C':
if (ctrl) {
nk_input_key(&d3d11.ctx, NK_KEY_COPY, down);
return 1;
}
break;
case 'V':
if (ctrl) {
nk_input_key(&d3d11.ctx, NK_KEY_PASTE, down);
return 1;
}
break;
case 'X':
if (ctrl) {
nk_input_key(&d3d11.ctx, NK_KEY_CUT, down);
return 1;
}
break;
case 'Z':
if (ctrl) {
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_UNDO, down);
return 1;
}
break;
case 'R':
if (ctrl) {
nk_input_key(&d3d11.ctx, NK_KEY_TEXT_REDO, down);
return 1;
}
break;
}
return 0;
}
case WM_CHAR:
if (wparam >= 32)
{
nk_input_unicode(&d3d11.ctx, (nk_rune)wparam);
return 1;
}
break;
case WM_LBUTTONDOWN:
nk_input_button(&d3d11.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_LBUTTONUP:
nk_input_button(&d3d11.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_RBUTTONDOWN:
nk_input_button(&d3d11.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_RBUTTONUP:
nk_input_button(&d3d11.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MBUTTONDOWN:
nk_input_button(&d3d11.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_MBUTTONUP:
nk_input_button(&d3d11.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MOUSEWHEEL:
nk_input_scroll(&d3d11.ctx, (float)(short)HIWORD(wparam) / WHEEL_DELTA);
return 1;
case WM_MOUSEMOVE:
nk_input_motion(&d3d11.ctx, (short)LOWORD(lparam), (short)HIWORD(lparam));
return 1;
}
return 0;
}
static void
nk_d3d11_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
(void)usr;
if (IsClipboardFormatAvailable(CF_UNICODETEXT) && OpenClipboard(NULL))
{
HGLOBAL mem = GetClipboardData(CF_UNICODETEXT);
if (mem)
{
SIZE_T size = GlobalSize(mem) - 1;
if (size)
{
LPCWSTR wstr = (LPCWSTR)GlobalLock(mem);
if (wstr)
{
int utf8size = WideCharToMultiByte(CP_UTF8, 0, wstr, size / sizeof(wchar_t), NULL, 0, NULL, NULL);
if (utf8size)
{
char* utf8 = (char*)malloc(utf8size);
if (utf8)
{
WideCharToMultiByte(CP_UTF8, 0, wstr, size / sizeof(wchar_t), utf8, utf8size, NULL, NULL);
nk_textedit_paste(edit, utf8, utf8size);
free(utf8);
}
}
GlobalUnlock(mem);
}
}
}
CloseClipboard();
}
}
static void
nk_d3d11_clipbard_copy(nk_handle usr, const char *text, int len)
{
(void)usr;
if (OpenClipboard(NULL))
{
int wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
if (wsize)
{
HGLOBAL mem = GlobalAlloc(GMEM_MOVEABLE, (wsize + 1) * sizeof(wchar_t));
if (mem)
{
wchar_t* wstr = (wchar_t*)GlobalLock(mem);
if (wstr)
{
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
wstr[wsize] = 0;
GlobalUnlock(mem);
SetClipboardData(CF_UNICODETEXT, mem);
}
}
}
CloseClipboard();
}
}
NK_API struct nk_context*
nk_d3d11_init(ID3D11Device *device, int width, int height, unsigned int max_vertex_buffer, unsigned int max_index_buffer)
{
HRESULT hr;
d3d11.max_vertex_buffer = max_vertex_buffer;
d3d11.max_index_buffer = max_index_buffer;
d3d11.device = device;
ID3D11Device_AddRef(device);
nk_init_default(&d3d11.ctx, 0);
d3d11.ctx.clip.copy = nk_d3d11_clipbard_copy;
d3d11.ctx.clip.paste = nk_d3d11_clipbard_paste;
d3d11.ctx.clip.userdata = nk_handle_ptr(0);
nk_buffer_init_default(&d3d11.cmds);
{/* rasterizer state */
D3D11_RASTERIZER_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.FillMode = D3D11_FILL_SOLID;
desc.CullMode = D3D11_CULL_NONE;
desc.FrontCounterClockwise = FALSE;
desc.DepthBias = 0;
desc.DepthBiasClamp = 0;
desc.SlopeScaledDepthBias = 0.0f;
desc.DepthClipEnable = TRUE;
desc.ScissorEnable = TRUE;
desc.MultisampleEnable = FALSE;
desc.AntialiasedLineEnable = FALSE;
hr = ID3D11Device_CreateRasterizerState(device,&desc, &d3d11.rasterizer_state);
NK_ASSERT(SUCCEEDED(hr));}
/* vertex shader */
{hr = ID3D11Device_CreateVertexShader(device,nk_d3d11_vertex_shader, sizeof(nk_d3d11_vertex_shader), NULL, &d3d11.vertex_shader);
NK_ASSERT(SUCCEEDED(hr));}
/* input layout */
{const D3D11_INPUT_ELEMENT_DESC layout[] = {
{ "POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, offsetof(struct nk_d3d11_vertex, position), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, offsetof(struct nk_d3d11_vertex, uv), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, offsetof(struct nk_d3d11_vertex, col), D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
hr = ID3D11Device_CreateInputLayout(device,layout, ARRAYSIZE(layout), nk_d3d11_vertex_shader, sizeof(nk_d3d11_vertex_shader), &d3d11.input_layout);
NK_ASSERT(SUCCEEDED(hr));}
/* constant buffer */
{float matrix[4*4];
D3D11_BUFFER_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.ByteWidth = sizeof(matrix);
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
{D3D11_SUBRESOURCE_DATA data;
data.pSysMem = matrix;
data.SysMemPitch = 0;
data.SysMemSlicePitch = 0;
nk_d3d11_get_projection_matrix(width, height, matrix);
hr = ID3D11Device_CreateBuffer(device, &desc, &data, &d3d11.const_buffer);
NK_ASSERT(SUCCEEDED(hr));}}
/* pixel shader */
{hr = ID3D11Device_CreatePixelShader(device, nk_d3d11_pixel_shader, sizeof(nk_d3d11_pixel_shader), NULL, &d3d11.pixel_shader);
NK_ASSERT(SUCCEEDED(hr));}
{/* blend state */
D3D11_BLEND_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.AlphaToCoverageEnable = FALSE;
desc.RenderTarget[0].BlendEnable = TRUE;
desc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
desc.RenderTarget[0].DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_ADD;
desc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_ZERO;
desc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
desc.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_ALL;
hr = ID3D11Device_CreateBlendState(device, &desc, &d3d11.blend_state);
NK_ASSERT(SUCCEEDED(hr));}
/* vertex buffer */
{D3D11_BUFFER_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.ByteWidth = max_vertex_buffer;
desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
hr = ID3D11Device_CreateBuffer(device, &desc, NULL, &d3d11.vertex_buffer);
NK_ASSERT(SUCCEEDED(hr));}
/* index buffer */
{D3D11_BUFFER_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.ByteWidth = max_index_buffer;
desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
hr = ID3D11Device_CreateBuffer(device, &desc, NULL, &d3d11.index_buffer);
NK_ASSERT(SUCCEEDED(hr));}
/* sampler state */
{D3D11_SAMPLER_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
desc.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP;
desc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP;
desc.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP;
desc.MipLODBias = 0.0f;
desc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
desc.MinLOD = 0.0f;
desc.MaxLOD = FLT_MAX;
hr = ID3D11Device_CreateSamplerState(device, &desc, &d3d11.sampler_state);
NK_ASSERT(SUCCEEDED(hr));}
/* viewport */
{d3d11.viewport.TopLeftX = 0.0f;
d3d11.viewport.TopLeftY = 0.0f;
d3d11.viewport.Width = (float)width;
d3d11.viewport.Height = (float)height;
d3d11.viewport.MinDepth = 0.0f;
d3d11.viewport.MaxDepth = 1.0f;}
return &d3d11.ctx;
}
NK_API void
nk_d3d11_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&d3d11.atlas);
nk_font_atlas_begin(&d3d11.atlas);
*atlas = &d3d11.atlas;
}
NK_API void
nk_d3d11_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&d3d11.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
/* upload font to texture and create texture view */
{ID3D11Texture2D *font_texture;
HRESULT hr;
D3D11_TEXTURE2D_DESC desc;
memset(&desc, 0, sizeof(desc));
desc.Width = (UINT)w;
desc.Height = (UINT)h;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
desc.CPUAccessFlags = 0;
{D3D11_SUBRESOURCE_DATA data;
data.pSysMem = image;
data.SysMemPitch = (UINT)(w * 4);
data.SysMemSlicePitch = 0;
hr = ID3D11Device_CreateTexture2D(d3d11.device, &desc, &data, &font_texture);
assert(SUCCEEDED(hr));}
{D3D11_SHADER_RESOURCE_VIEW_DESC srv;
memset(&srv, 0, sizeof(srv));
srv.Format = desc.Format;
srv.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
srv.Texture2D.MipLevels = 1;
srv.Texture2D.MostDetailedMip = 0;
hr = ID3D11Device_CreateShaderResourceView(d3d11.device, (ID3D11Resource *)font_texture, &srv, &d3d11.font_texture_view);
assert(SUCCEEDED(hr));}
ID3D11Texture2D_Release(font_texture);}
nk_font_atlas_end(&d3d11.atlas, nk_handle_ptr(d3d11.font_texture_view), &d3d11.null);
if (d3d11.atlas.default_font)
nk_style_set_font(&d3d11.ctx, &d3d11.atlas.default_font->handle);
}
NK_API
void nk_d3d11_shutdown(void)
{
nk_font_atlas_clear(&d3d11.atlas);
nk_buffer_free(&d3d11.cmds);
nk_free(&d3d11.ctx);
ID3D11SamplerState_Release(d3d11.sampler_state);
ID3D11ShaderResourceView_Release(d3d11.font_texture_view);
ID3D11Buffer_Release(d3d11.vertex_buffer);
ID3D11Buffer_Release(d3d11.index_buffer);
ID3D11BlendState_Release(d3d11.blend_state);
ID3D11PixelShader_Release(d3d11.pixel_shader);
ID3D11Buffer_Release(d3d11.const_buffer);
ID3D11VertexShader_Release(d3d11.vertex_shader);
ID3D11InputLayout_Release(d3d11.input_layout);
ID3D11RasterizerState_Release(d3d11.rasterizer_state);
ID3D11Device_Release(d3d11.device);
}
#endif

36
deps/nuklear/demo/d3d11/nuklear_d3d11.hlsl vendored
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@ -1,36 +0,0 @@
//
cbuffer buffer0 : register(b0)
{
float4x4 ProjectionMatrix;
};
sampler sampler0 : register(s0);
Texture2D<float4> texture0 : register(t0);
struct VS_INPUT
{
float2 pos : POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
struct PS_INPUT
{
float4 pos : SV_POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
PS_INPUT vs(VS_INPUT input)
{
PS_INPUT output;
output.pos = mul(ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));
output.col = input.col;
output.uv = input.uv;
return output;
}
float4 ps(PS_INPUT input) : SV_Target
{
return input.col * texture0.Sample(sampler0, input.uv);
}

179
deps/nuklear/demo/d3d11/nuklear_d3d11_pixel_shader.h vendored
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@ -1,179 +0,0 @@
#if 0
//
// Generated by Microsoft (R) D3D Shader Disassembler
//
//
// Input signature:
//
// Name Index Mask Register SysValue Format Used
// -------------------- ----- ------ -------- -------- ------- ------
// SV_POSITION 0 xyzw 0 POS float
// COLOR 0 xyzw 1 NONE float xyzw
// TEXCOORD 0 xy 2 NONE float xy
//
//
// Output signature:
//
// Name Index Mask Register SysValue Format Used
// -------------------- ----- ------ -------- -------- ------- ------
// SV_Target 0 xyzw 0 TARGET float xyzw
//
//
// Sampler/Resource to DX9 shader sampler mappings:
//
// Target Sampler Source Sampler Source Resource
// -------------- --------------- ----------------
// s0 s0 t0
//
//
// Level9 shader bytecode:
//
ps_2_0
dcl t0
dcl t1.xy
dcl_2d s0
texld r0, t1, s0
mul r0, r0, t0
mov oC0, r0
// approximately 3 instruction slots used (1 texture, 2 arithmetic)
//
// Sampler/Resource to DX9 shader sampler mappings:
//
// Target Sampler Source Sampler Source Resource
// -------------- --------------- ----------------
// s0 s0 t0
//
//
// XNA shader bytecode:
//
ps_2_0
dcl t0
dcl t1.xy
dcl_2d s0
texld r0, r2, s0
mul oC0, r0, r1
// approximately 2 instruction slots used (1 texture, 1 arithmetic)
ps_4_0
dcl_sampler s0, mode_default
dcl_resource_texture2d (float,float,float,float) t0
dcl_input_ps linear v1.xyzw
dcl_input_ps linear v2.xy
dcl_output o0.xyzw
dcl_temps 1
sample r0.xyzw, v2.xyxx, t0.xyzw, s0
mul o0.xyzw, r0.xyzw, v1.xyzw
ret
// Approximately 0 instruction slots used
#endif
const BYTE nk_d3d11_pixel_shader[] =
{
68, 88, 66, 67, 249, 46,
26, 75, 111, 182, 161, 241,
199, 179, 191, 89, 44, 229,
245, 103, 1, 0, 0, 0,
124, 2, 0, 0, 5, 0,
0, 0, 52, 0, 0, 0,
176, 0, 0, 0, 56, 1,
0, 0, 212, 1, 0, 0,
72, 2, 0, 0, 88, 78,
65, 83, 116, 0, 0, 0,
116, 0, 0, 0, 0, 2,
255, 255, 76, 0, 0, 0,
40, 0, 0, 0, 0, 0,
40, 0, 0, 0, 40, 0,
0, 0, 40, 0, 1, 0,
36, 0, 0, 0, 40, 0,
0, 0, 0, 0, 0, 2,
255, 255, 31, 0, 0, 2,
0, 0, 0, 128, 0, 0,
15, 176, 31, 0, 0, 2,
0, 0, 0, 128, 1, 0,
3, 176, 31, 0, 0, 2,
0, 0, 0, 144, 0, 8,
15, 160, 66, 0, 0, 3,
0, 0, 15, 128, 2, 0,
228, 128, 0, 8, 228, 160,
5, 0, 0, 3, 0, 8,
15, 128, 0, 0, 228, 128,
1, 0, 228, 128, 255, 255,
0, 0, 65, 111, 110, 57,
128, 0, 0, 0, 128, 0,
0, 0, 0, 2, 255, 255,
88, 0, 0, 0, 40, 0,
0, 0, 0, 0, 40, 0,
0, 0, 40, 0, 0, 0,
40, 0, 1, 0, 36, 0,
0, 0, 40, 0, 0, 0,
0, 0, 0, 2, 255, 255,
31, 0, 0, 2, 0, 0,
0, 128, 0, 0, 15, 176,
31, 0, 0, 2, 0, 0,
0, 128, 1, 0, 3, 176,
31, 0, 0, 2, 0, 0,
0, 144, 0, 8, 15, 160,
66, 0, 0, 3, 0, 0,
15, 128, 1, 0, 228, 176,
0, 8, 228, 160, 5, 0,
0, 3, 0, 0, 15, 128,
0, 0, 228, 128, 0, 0,
228, 176, 1, 0, 0, 2,
0, 8, 15, 128, 0, 0,
228, 128, 255, 255, 0, 0,
83, 72, 68, 82, 148, 0,
0, 0, 64, 0, 0, 0,
37, 0, 0, 0, 90, 0,
0, 3, 0, 96, 16, 0,
0, 0, 0, 0, 88, 24,
0, 4, 0, 112, 16, 0,
0, 0, 0, 0, 85, 85,
0, 0, 98, 16, 0, 3,
242, 16, 16, 0, 1, 0,
0, 0, 98, 16, 0, 3,
50, 16, 16, 0, 2, 0,
0, 0, 101, 0, 0, 3,
242, 32, 16, 0, 0, 0,
0, 0, 104, 0, 0, 2,
1, 0, 0, 0, 69, 0,
0, 9, 242, 0, 16, 0,
0, 0, 0, 0, 70, 16,
16, 0, 2, 0, 0, 0,
70, 126, 16, 0, 0, 0,
0, 0, 0, 96, 16, 0,
0, 0, 0, 0, 56, 0,
0, 7, 242, 32, 16, 0,
0, 0, 0, 0, 70, 14,
16, 0, 0, 0, 0, 0,
70, 30, 16, 0, 1, 0,
0, 0, 62, 0, 0, 1,
73, 83, 71, 78, 108, 0,
0, 0, 3, 0, 0, 0,
8, 0, 0, 0, 80, 0,
0, 0, 0, 0, 0, 0,
1, 0, 0, 0, 3, 0,
0, 0, 0, 0, 0, 0,
15, 0, 0, 0, 92, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 3, 0,
0, 0, 1, 0, 0, 0,
15, 15, 0, 0, 98, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 3, 0,
0, 0, 2, 0, 0, 0,
3, 3, 0, 0, 83, 86,
95, 80, 79, 83, 73, 84,
73, 79, 78, 0, 67, 79,
76, 79, 82, 0, 84, 69,
88, 67, 79, 79, 82, 68,
0, 171, 79, 83, 71, 78,
44, 0, 0, 0, 1, 0,
0, 0, 8, 0, 0, 0,
32, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
3, 0, 0, 0, 0, 0,
0, 0, 15, 0, 0, 0,
83, 86, 95, 84, 97, 114,
103, 101, 116, 0, 171, 171
};

350
deps/nuklear/demo/d3d11/nuklear_d3d11_vertex_shader.h vendored
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@ -1,350 +0,0 @@
#if 0
//
// Generated by Microsoft (R) D3D Shader Disassembler
//
//
// Input signature:
//
// Name Index Mask Register SysValue Format Used
// -------------------- ----- ------ -------- -------- ------- ------
// POSITION 0 xy 0 NONE float xy
// COLOR 0 xyzw 1 NONE float xyzw
// TEXCOORD 0 xy 2 NONE float xy
//
//
// Output signature:
//
// Name Index Mask Register SysValue Format Used
// -------------------- ----- ------ -------- -------- ------- ------
// SV_POSITION 0 xyzw 0 POS float xyzw
// COLOR 0 xyzw 1 NONE float xyzw
// TEXCOORD 0 xy 2 NONE float xy
//
//
// Constant buffer to DX9 shader constant mappings:
//
// Target Reg Buffer Start Reg # of Regs Data Conversion
// ---------- ------- --------- --------- ----------------------
// c1 cb0 0 4 ( FLT, FLT, FLT, FLT)
//
//
// Runtime generated constant mappings:
//
// Target Reg Constant Description
// ---------- --------------------------------------------------
// c0 Vertex Shader position offset
//
//
// Level9 shader bytecode:
//
vs_2_0
def c5, 0, 1, 0, 0
dcl_texcoord v0
dcl_texcoord1 v1
dcl_texcoord2 v2
mul r0, v0.x, c1
mad r0, c2, v0.y, r0
mov r1.xy, c5
mad r0, c3, r1.x, r0
mad r0, c4, r1.y, r0
mul r1.xy, r0.w, c0
add oPos.xy, r0, r1
mov oPos.zw, r0
mov oT0, v1
mov oT1.xy, v2
// approximately 10 instruction slots used
//
// Constant buffer to DX9 shader constant mappings:
//
// Target Reg Buffer Start Reg # of Regs Data Conversion
// ---------- ------- --------- --------- ----------------------
// c0 cb0 0 4 ( FLT, FLT, FLT, FLT)
//
//
// XNA Prepass shader bytecode:
//
vs_2_0
def c4, 0, 1, 0, 0
dcl_texcoord v0
mul r1, r0.x, c0
mad r0, c1, r0.y, r1
mov r1.xy, c4
mad r0, c2, r1.x, r0
mad r0, c3, r1.y, r0
mov oPos, r0
// approximately 6 instruction slots used
//
// Constant buffer to DX9 shader constant mappings:
//
// Target Reg Buffer Start Reg # of Regs Data Conversion
// ---------- ------- --------- --------- ----------------------
// c0 cb0 0 4 ( FLT, FLT, FLT, FLT)
//
//
// XNA shader bytecode:
//
vs_2_0
def c4, 0, 1, 0, 0
dcl_texcoord v0
dcl_texcoord1 v1
dcl_texcoord2 v2
mov oT0, r1
mov oT1.xy, r2
mul r1, r0.x, c0
mad r0, c1, r0.y, r1
mov r1.xy, c4
mad r0, c2, r1.x, r0
mad r0, c3, r1.y, r0
mov oPos, r0
// approximately 8 instruction slots used
vs_4_0
dcl_constantbuffer cb0[4], immediateIndexed
dcl_input v0.xy
dcl_input v1.xyzw
dcl_input v2.xy
dcl_output_siv o0.xyzw, position
dcl_output o1.xyzw
dcl_output o2.xy
dcl_temps 1
mul r0.xyzw, v0.xxxx, cb0[0].xyzw
mad r0.xyzw, cb0[1].xyzw, v0.yyyy, r0.xyzw
mad r0.xyzw, cb0[2].xyzw, l(0.000000, 0.000000, 0.000000, 0.000000), r0.xyzw
mad o0.xyzw, cb0[3].xyzw, l(1.000000, 1.000000, 1.000000, 1.000000), r0.xyzw
mov o1.xyzw, v1.xyzw
mov o2.xy, v2.xyxx
ret
// Approximately 0 instruction slots used
#endif
const BYTE nk_d3d11_vertex_shader[] =
{
68, 88, 66, 67, 215, 245,
86, 155, 188, 117, 37, 118,
193, 207, 209, 90, 160, 153,
246, 188, 1, 0, 0, 0,
72, 5, 0, 0, 6, 0,
0, 0, 56, 0, 0, 0,
48, 1, 0, 0, 248, 1,
0, 0, 20, 3, 0, 0,
100, 4, 0, 0, 212, 4,
0, 0, 88, 78, 65, 83,
240, 0, 0, 0, 240, 0,
0, 0, 0, 2, 254, 255,
192, 0, 0, 0, 48, 0,
0, 0, 1, 0, 36, 0,
0, 0, 48, 0, 0, 0,
48, 0, 0, 0, 36, 0,
0, 0, 48, 0, 0, 0,
0, 0, 4, 0, 0, 0,
0, 0, 0, 0, 0, 2,
254, 255, 81, 0, 0, 5,
4, 0, 15, 160, 0, 0,
0, 0, 0, 0, 128, 63,
0, 0, 0, 0, 0, 0,
0, 0, 31, 0, 0, 2,
5, 0, 0, 128, 0, 0,
15, 144, 31, 0, 0, 2,
5, 0, 1, 128, 1, 0,
15, 144, 31, 0, 0, 2,
5, 0, 2, 128, 2, 0,
15, 144, 1, 0, 0, 2,
0, 0, 15, 224, 1, 0,
228, 128, 1, 0, 0, 2,
1, 0, 3, 224, 2, 0,
228, 128, 5, 0, 0, 3,
1, 0, 15, 128, 0, 0,
0, 128, 0, 0, 228, 160,
4, 0, 0, 4, 0, 0,
15, 128, 1, 0, 228, 160,
0, 0, 85, 128, 1, 0,
228, 128, 1, 0, 0, 2,
1, 0, 3, 128, 4, 0,
228, 160, 4, 0, 0, 4,
0, 0, 15, 128, 2, 0,
228, 160, 1, 0, 0, 128,
0, 0, 228, 128, 4, 0,
0, 4, 0, 0, 15, 128,
3, 0, 228, 160, 1, 0,
85, 128, 0, 0, 228, 128,
1, 0, 0, 2, 0, 0,
15, 192, 0, 0, 228, 128,
255, 255, 0, 0, 88, 78,
65, 80, 192, 0, 0, 0,
192, 0, 0, 0, 0, 2,
254, 255, 144, 0, 0, 0,
48, 0, 0, 0, 1, 0,
36, 0, 0, 0, 48, 0,
0, 0, 48, 0, 0, 0,
36, 0, 0, 0, 48, 0,
0, 0, 0, 0, 4, 0,
0, 0, 0, 0, 0, 0,
0, 2, 254, 255, 81, 0,
0, 5, 4, 0, 15, 160,
0, 0, 0, 0, 0, 0,
128, 63, 0, 0, 0, 0,
0, 0, 0, 0, 31, 0,
0, 2, 5, 0, 0, 128,
0, 0, 15, 144, 5, 0,
0, 3, 1, 0, 15, 128,
0, 0, 0, 128, 0, 0,
228, 160, 4, 0, 0, 4,
0, 0, 15, 128, 1, 0,
228, 160, 0, 0, 85, 128,
1, 0, 228, 128, 1, 0,
0, 2, 1, 0, 3, 128,
4, 0, 228, 160, 4, 0,
0, 4, 0, 0, 15, 128,
2, 0, 228, 160, 1, 0,
0, 128, 0, 0, 228, 128,
4, 0, 0, 4, 0, 0,
15, 128, 3, 0, 228, 160,
1, 0, 85, 128, 0, 0,
228, 128, 1, 0, 0, 2,
0, 0, 15, 192, 0, 0,
228, 128, 255, 255, 0, 0,
65, 111, 110, 57, 20, 1,
0, 0, 20, 1, 0, 0,
0, 2, 254, 255, 224, 0,
0, 0, 52, 0, 0, 0,
1, 0, 36, 0, 0, 0,
48, 0, 0, 0, 48, 0,
0, 0, 36, 0, 1, 0,
48, 0, 0, 0, 0, 0,
4, 0, 1, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 2, 254, 255, 81, 0,
0, 5, 5, 0, 15, 160,
0, 0, 0, 0, 0, 0,
128, 63, 0, 0, 0, 0,
0, 0, 0, 0, 31, 0,
0, 2, 5, 0, 0, 128,
0, 0, 15, 144, 31, 0,
0, 2, 5, 0, 1, 128,
1, 0, 15, 144, 31, 0,
0, 2, 5, 0, 2, 128,
2, 0, 15, 144, 5, 0,
0, 3, 0, 0, 15, 128,
0, 0, 0, 144, 1, 0,
228, 160, 4, 0, 0, 4,
0, 0, 15, 128, 2, 0,
228, 160, 0, 0, 85, 144,
0, 0, 228, 128, 1, 0,
0, 2, 1, 0, 3, 128,
5, 0, 228, 160, 4, 0,
0, 4, 0, 0, 15, 128,
3, 0, 228, 160, 1, 0,
0, 128, 0, 0, 228, 128,
4, 0, 0, 4, 0, 0,
15, 128, 4, 0, 228, 160,
1, 0, 85, 128, 0, 0,
228, 128, 5, 0, 0, 3,
1, 0, 3, 128, 0, 0,
255, 128, 0, 0, 228, 160,
2, 0, 0, 3, 0, 0,
3, 192, 0, 0, 228, 128,
1, 0, 228, 128, 1, 0,
0, 2, 0, 0, 12, 192,
0, 0, 228, 128, 1, 0,
0, 2, 0, 0, 15, 224,
1, 0, 228, 144, 1, 0,
0, 2, 1, 0, 3, 224,
2, 0, 228, 144, 255, 255,
0, 0, 83, 72, 68, 82,
72, 1, 0, 0, 64, 0,
1, 0, 82, 0, 0, 0,
89, 0, 0, 4, 70, 142,
32, 0, 0, 0, 0, 0,
4, 0, 0, 0, 95, 0,
0, 3, 50, 16, 16, 0,
0, 0, 0, 0, 95, 0,
0, 3, 242, 16, 16, 0,
1, 0, 0, 0, 95, 0,
0, 3, 50, 16, 16, 0,
2, 0, 0, 0, 103, 0,
0, 4, 242, 32, 16, 0,
0, 0, 0, 0, 1, 0,
0, 0, 101, 0, 0, 3,
242, 32, 16, 0, 1, 0,
0, 0, 101, 0, 0, 3,
50, 32, 16, 0, 2, 0,
0, 0, 104, 0, 0, 2,
1, 0, 0, 0, 56, 0,
0, 8, 242, 0, 16, 0,
0, 0, 0, 0, 6, 16,
16, 0, 0, 0, 0, 0,
70, 142, 32, 0, 0, 0,
0, 0, 0, 0, 0, 0,
50, 0, 0, 10, 242, 0,
16, 0, 0, 0, 0, 0,
70, 142, 32, 0, 0, 0,
0, 0, 1, 0, 0, 0,
86, 21, 16, 0, 0, 0,
0, 0, 70, 14, 16, 0,
0, 0, 0, 0, 50, 0,
0, 13, 242, 0, 16, 0,
0, 0, 0, 0, 70, 142,
32, 0, 0, 0, 0, 0,
2, 0, 0, 0, 2, 64,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
70, 14, 16, 0, 0, 0,
0, 0, 50, 0, 0, 13,
242, 32, 16, 0, 0, 0,
0, 0, 70, 142, 32, 0,
0, 0, 0, 0, 3, 0,
0, 0, 2, 64, 0, 0,
0, 0, 128, 63, 0, 0,
128, 63, 0, 0, 128, 63,
0, 0, 128, 63, 70, 14,
16, 0, 0, 0, 0, 0,
54, 0, 0, 5, 242, 32,
16, 0, 1, 0, 0, 0,
70, 30, 16, 0, 1, 0,
0, 0, 54, 0, 0, 5,
50, 32, 16, 0, 2, 0,
0, 0, 70, 16, 16, 0,
2, 0, 0, 0, 62, 0,
0, 1, 73, 83, 71, 78,
104, 0, 0, 0, 3, 0,
0, 0, 8, 0, 0, 0,
80, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
3, 0, 0, 0, 0, 0,
0, 0, 3, 3, 0, 0,
89, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
3, 0, 0, 0, 1, 0,
0, 0, 15, 15, 0, 0,
95, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0,
3, 0, 0, 0, 2, 0,
0, 0, 3, 3, 0, 0,
80, 79, 83, 73, 84, 73,
79, 78, 0, 67, 79, 76,
79, 82, 0, 84, 69, 88,
67, 79, 79, 82, 68, 0,
79, 83, 71, 78, 108, 0,
0, 0, 3, 0, 0, 0,
8, 0, 0, 0, 80, 0,
0, 0, 0, 0, 0, 0,
1, 0, 0, 0, 3, 0,
0, 0, 0, 0, 0, 0,
15, 0, 0, 0, 92, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 3, 0,
0, 0, 1, 0, 0, 0,
15, 0, 0, 0, 98, 0,
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 3, 0,
0, 0, 2, 0, 0, 0,
3, 12, 0, 0, 83, 86,
95, 80, 79, 83, 73, 84,
73, 79, 78, 0, 67, 79,
76, 79, 82, 0, 84, 69,
88, 67, 79, 79, 82, 68,
0, 171
};

6
deps/nuklear/demo/gdi/build.bat vendored
View File

@ -1,6 +0,0 @@
@echo off
rem This will use VS2015 for compiler
call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
cl /nologo /W3 /O2 /fp:fast /Gm- /Fedemo.exe main.c user32.lib gdi32.lib /link /incremental:no

161
deps/nuklear/demo/gdi/main.c vendored
View File

@ -1,161 +0,0 @@
/* nuklear - v1.17 - public domain */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <limits.h>
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#define NK_GDI_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_gdi.h"
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
static LRESULT CALLBACK
WindowProc(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
if (nk_gdi_handle_event(wnd, msg, wparam, lparam))
return 0;
return DefWindowProcW(wnd, msg, wparam, lparam);
}
int main(void)
{
GdiFont* font;
struct nk_context *ctx;
WNDCLASSW wc;
ATOM atom;
RECT rect = { 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT };
DWORD style = WS_OVERLAPPEDWINDOW;
DWORD exstyle = WS_EX_APPWINDOW;
HWND wnd;
HDC dc;
int running = 1;
int needs_refresh = 1;
/* Win32 */
memset(&wc, 0, sizeof(wc));
wc.lpfnWndProc = WindowProc;
wc.hInstance = GetModuleHandleW(0);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.lpszClassName = L"NuklearWindowClass";
atom = RegisterClassW(&wc);
AdjustWindowRectEx(&rect, style, FALSE, exstyle);
wnd = CreateWindowExW(exstyle, wc.lpszClassName, L"Nuklear Demo",
style | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT,
rect.right - rect.left, rect.bottom - rect.top,
NULL, NULL, wc.hInstance, NULL);
dc = GetDC(wnd);
/* GUI */
font = nk_gdifont_create("Arial", 14);
ctx = nk_gdi_init(font, dc, WINDOW_WIDTH, WINDOW_HEIGHT);
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
while (running)
{
/* Input */
MSG msg;
nk_input_begin(ctx);
if (needs_refresh == 0) {
if (GetMessageW(&msg, NULL, 0, 0) <= 0)
running = 0;
else {
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
needs_refresh = 1;
} else needs_refresh = 0;
while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT)
running = 0;
TranslateMessage(&msg);
DispatchMessageW(&msg);
needs_refresh = 1;
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 22, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
nk_gdi_render(nk_rgb(30,30,30));
}
nk_gdifont_del(font);
ReleaseDC(wnd, dc);
UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 0;
}

761
deps/nuklear/demo/gdi/nuklear_gdi.h vendored
View File

@ -1,761 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GDI_H_
#define NK_GDI_H_
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
typedef struct GdiFont GdiFont;
NK_API struct nk_context* nk_gdi_init(GdiFont *font, HDC window_dc, unsigned int width, unsigned int height);
NK_API int nk_gdi_handle_event(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
NK_API void nk_gdi_render(struct nk_color clear);
NK_API void nk_gdi_shutdown(void);
/* font */
NK_API GdiFont* nk_gdifont_create(const char *name, int size);
NK_API void nk_gdifont_del(GdiFont *font);
NK_API void nk_gdi_set_font(GdiFont *font);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GDI_IMPLEMENTATION
#include <stdlib.h>
#include <malloc.h>
struct GdiFont {
struct nk_user_font nk;
int height;
HFONT handle;
HDC dc;
};
static struct {
HBITMAP bitmap;
HDC window_dc;
HDC memory_dc;
unsigned int width;
unsigned int height;
struct nk_context ctx;
} gdi;
static COLORREF
convert_color(struct nk_color c)
{
return c.r | (c.g << 8) | (c.b << 16);
}
static void
nk_gdi_scissor(HDC dc, float x, float y, float w, float h)
{
SelectClipRgn(dc, NULL);
IntersectClipRect(dc, (int)x, (int)y, (int)(x + w + 1), (int)(y + h + 1));
}
static void
nk_gdi_stroke_line(HDC dc, short x0, short y0, short x1,
short y1, unsigned int line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
MoveToEx(dc, x0, y0, NULL);
LineTo(dc, x1, y1);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_rect(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
SetDCBrushColor(dc, OPAQUE);
if (r == 0) {
Rectangle(dc, x, y, x + w, y + h);
} else {
RoundRect(dc, x, y, x + w, y + h, r, r);
}
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_rect(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short r, struct nk_color col)
{
COLORREF color = convert_color(col);
if (r == 0) {
RECT rect = { x, y, x + w, y + h };
SetBkColor(dc, color);
ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
} else {
SetDCPenColor(dc, color);
SetDCBrushColor(dc, color);
RoundRect(dc, x, y, x + w, y + h, r, r);
}
}
static void
nk_gdi_fill_triangle(HDC dc, short x0, short y0, short x1,
short y1, short x2, short y2, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT points[] = {
{ x0, y0 },
{ x1, y1 },
{ x2, y2 },
};
SetDCPenColor(dc, color);
SetDCBrushColor(dc, color);
Polygon(dc, points, 3);
}
static void
nk_gdi_stroke_triangle(HDC dc, short x0, short y0, short x1,
short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT points[] = {
{ x0, y0 },
{ x1, y1 },
{ x2, y2 },
{ x0, y0 },
};
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
Polyline(dc, points, 4);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_polygon(HDC dc, const struct nk_vec2i *pnts, int count, struct nk_color col)
{
int i = 0;
#define MAX_POINTS 64
POINT points[MAX_POINTS];
COLORREF color = convert_color(col);
SetDCBrushColor(dc, color);
SetDCPenColor(dc, color);
for (i = 0; i < count && i < MAX_POINTS; ++i) {
points[i].x = pnts[i].x;
points[i].y = pnts[i].y;
}
Polygon(dc, points, i);
#undef MAX_POINTS
}
static void
nk_gdi_stroke_polygon(HDC dc, const struct nk_vec2i *pnts, int count,
unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
if (count > 0) {
int i;
MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
for (i = 1; i < count; ++i)
LineTo(dc, pnts[i].x, pnts[i].y);
LineTo(dc, pnts[0].x, pnts[0].y);
}
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_polyline(HDC dc, const struct nk_vec2i *pnts,
int count, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
if (count > 0) {
int i;
MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
for (i = 1; i < count; ++i)
LineTo(dc, pnts[i].x, pnts[i].y);
}
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_circle(HDC dc, short x, short y, unsigned short w,
unsigned short h, struct nk_color col)
{
COLORREF color = convert_color(col);
SetDCBrushColor(dc, color);
SetDCPenColor(dc, color);
Ellipse(dc, x, y, x + w, y + h);
}
static void
nk_gdi_stroke_circle(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
SetDCBrushColor(dc, OPAQUE);
Ellipse(dc, x, y, x + w, y + h);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_curve(HDC dc, struct nk_vec2i p1,
struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4,
unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT p[] = {
{ p1.x, p1.y },
{ p2.x, p2.y },
{ p3.x, p3.y },
{ p4.x, p4.y },
};
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
} else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
SetDCBrushColor(dc, OPAQUE);
PolyBezier(dc, p, 4);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_draw_text(HDC dc, short x, short y, unsigned short w, unsigned short h,
const char *text, int len, GdiFont *font, struct nk_color cbg, struct nk_color cfg)
{
int wsize;
WCHAR* wstr;
if(!text || !font || !len) return;
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
SetBkColor(dc, convert_color(cbg));
SetTextColor(dc, convert_color(cfg));
SelectObject(dc, font->handle);
ExtTextOutW(dc, x, y, ETO_OPAQUE, NULL, wstr, wsize, NULL);
}
static void
nk_gdi_clear(HDC dc, struct nk_color col)
{
COLORREF color = convert_color(col);
RECT rect = { 0, 0, gdi.width, gdi.height };
SetBkColor(dc, color);
ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
}
static void
nk_gdi_blit(HDC dc)
{
BitBlt(dc, 0, 0, gdi.width, gdi.height, gdi.memory_dc, 0, 0, SRCCOPY);
}
GdiFont*
nk_gdifont_create(const char *name, int size)
{
TEXTMETRICW metric;
GdiFont *font = (GdiFont*)calloc(1, sizeof(GdiFont));
if (!font)
return NULL;
font->dc = CreateCompatibleDC(0);
font->handle = CreateFont(size, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, DEFAULT_PITCH | FF_DONTCARE, name);
SelectObject(font->dc, font->handle);
GetTextMetricsW(font->dc, &metric);
font->height = metric.tmHeight;
return font;
}
static float
nk_gdifont_get_text_width(nk_handle handle, float height, const char *text, int len)
{
GdiFont *font = (GdiFont*)handle.ptr;
SIZE size;
int wsize;
WCHAR* wstr;
if (!font || !text)
return 0;
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
if (GetTextExtentPoint32W(font->dc, wstr, wsize, &size))
return (float)size.cx;
return -1.0f;
}
void
nk_gdifont_del(GdiFont *font)
{
if(!font) return;
DeleteObject(font->handle);
DeleteDC(font->dc);
free(font);
}
static void
nk_gdi_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
(void)usr;
if (IsClipboardFormatAvailable(CF_UNICODETEXT) && OpenClipboard(NULL))
{
HGLOBAL mem = GetClipboardData(CF_UNICODETEXT);
if (mem)
{
SIZE_T size = GlobalSize(mem) - 1;
if (size)
{
LPCWSTR wstr = (LPCWSTR)GlobalLock(mem);
if (wstr)
{
int utf8size = WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), NULL, 0, NULL, NULL);
if (utf8size)
{
char* utf8 = (char*)malloc(utf8size);
if (utf8)
{
WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), utf8, utf8size, NULL, NULL);
nk_textedit_paste(edit, utf8, utf8size);
free(utf8);
}
}
GlobalUnlock(mem);
}
}
}
CloseClipboard();
}
}
static void
nk_gdi_clipbard_copy(nk_handle usr, const char *text, int len)
{
if (OpenClipboard(NULL))
{
int wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
if (wsize)
{
HGLOBAL mem = (HGLOBAL)GlobalAlloc(GMEM_MOVEABLE, (wsize + 1) * sizeof(wchar_t));
if (mem)
{
wchar_t* wstr = (wchar_t*)GlobalLock(mem);
if (wstr)
{
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
wstr[wsize] = 0;
GlobalUnlock(mem);
SetClipboardData(CF_UNICODETEXT, mem);
}
}
}
CloseClipboard();
}
}
NK_API struct nk_context*
nk_gdi_init(GdiFont *gdifont, HDC window_dc, unsigned int width, unsigned int height)
{
struct nk_user_font *font = &gdifont->nk;
font->userdata = nk_handle_ptr(gdifont);
font->height = (float)gdifont->height;
font->width = nk_gdifont_get_text_width;
gdi.bitmap = CreateCompatibleBitmap(window_dc, width, height);
gdi.window_dc = window_dc;
gdi.memory_dc = CreateCompatibleDC(window_dc);
gdi.width = width;
gdi.height = height;
SelectObject(gdi.memory_dc, gdi.bitmap);
nk_init_default(&gdi.ctx, font);
gdi.ctx.clip.copy = nk_gdi_clipbard_copy;
gdi.ctx.clip.paste = nk_gdi_clipbard_paste;
return &gdi.ctx;
}
NK_API void
nk_gdi_set_font(GdiFont *gdifont)
{
struct nk_user_font *font = &gdifont->nk;
font->userdata = nk_handle_ptr(gdifont);
font->height = (float)gdifont->height;
font->width = nk_gdifont_get_text_width;
nk_style_set_font(&gdi.ctx, font);
}
NK_API int
nk_gdi_handle_event(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_SIZE:
{
unsigned width = LOWORD(lparam);
unsigned height = LOWORD(lparam);
if (width != gdi.width || height != gdi.height)
{
DeleteObject(gdi.bitmap);
gdi.bitmap = CreateCompatibleBitmap(gdi.window_dc, width, height);
gdi.width = width;
gdi.height = height;
SelectObject(gdi.memory_dc, gdi.bitmap);
}
break;
}
case WM_PAINT:
{
PAINTSTRUCT paint;
HDC dc = BeginPaint(wnd, &paint);
nk_gdi_blit(dc);
EndPaint(wnd, &paint);
return 1;
}
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
int down = !((lparam >> 31) & 1);
int ctrl = GetKeyState(VK_CONTROL) & (1 << 15);
switch (wparam)
{
case VK_SHIFT:
case VK_LSHIFT:
case VK_RSHIFT:
nk_input_key(&gdi.ctx, NK_KEY_SHIFT, down);
return 1;
case VK_DELETE:
nk_input_key(&gdi.ctx, NK_KEY_DEL, down);
return 1;
case VK_RETURN:
nk_input_key(&gdi.ctx, NK_KEY_ENTER, down);
return 1;
case VK_TAB:
nk_input_key(&gdi.ctx, NK_KEY_TAB, down);
return 1;
case VK_LEFT:
if (ctrl)
nk_input_key(&gdi.ctx, NK_KEY_TEXT_WORD_LEFT, down);
else
nk_input_key(&gdi.ctx, NK_KEY_LEFT, down);
return 1;
case VK_RIGHT:
if (ctrl)
nk_input_key(&gdi.ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else
nk_input_key(&gdi.ctx, NK_KEY_RIGHT, down);
return 1;
case VK_BACK:
nk_input_key(&gdi.ctx, NK_KEY_BACKSPACE, down);
return 1;
case VK_HOME:
nk_input_key(&gdi.ctx, NK_KEY_TEXT_START, down);
nk_input_key(&gdi.ctx, NK_KEY_SCROLL_START, down);
return 1;
case VK_END:
nk_input_key(&gdi.ctx, NK_KEY_TEXT_END, down);
nk_input_key(&gdi.ctx, NK_KEY_SCROLL_END, down);
return 1;
case VK_NEXT:
nk_input_key(&gdi.ctx, NK_KEY_SCROLL_DOWN, down);
return 1;
case VK_PRIOR:
nk_input_key(&gdi.ctx, NK_KEY_SCROLL_UP, down);
return 1;
case 'C':
if (ctrl) {
nk_input_key(&gdi.ctx, NK_KEY_COPY, down);
return 1;
}
break;
case 'V':
if (ctrl) {
nk_input_key(&gdi.ctx, NK_KEY_PASTE, down);
return 1;
}
break;
case 'X':
if (ctrl) {
nk_input_key(&gdi.ctx, NK_KEY_CUT, down);
return 1;
}
break;
case 'Z':
if (ctrl) {
nk_input_key(&gdi.ctx, NK_KEY_TEXT_UNDO, down);
return 1;
}
break;
case 'R':
if (ctrl) {
nk_input_key(&gdi.ctx, NK_KEY_TEXT_REDO, down);
return 1;
}
break;
}
return 0;
}
case WM_CHAR:
if (wparam >= 32)
{
nk_input_unicode(&gdi.ctx, (nk_rune)wparam);
return 1;
}
break;
case WM_LBUTTONDOWN:
nk_input_button(&gdi.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_LBUTTONUP:
nk_input_button(&gdi.ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_RBUTTONDOWN:
nk_input_button(&gdi.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_RBUTTONUP:
nk_input_button(&gdi.ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MBUTTONDOWN:
nk_input_button(&gdi.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_MBUTTONUP:
nk_input_button(&gdi.ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MOUSEWHEEL:
nk_input_scroll(&gdi.ctx, (float)(short)HIWORD(wparam) / WHEEL_DELTA);
return 1;
case WM_MOUSEMOVE:
nk_input_motion(&gdi.ctx, (short)LOWORD(lparam), (short)HIWORD(lparam));
return 1;
}
return 0;
}
NK_API void
nk_gdi_shutdown(void)
{
DeleteObject(gdi.memory_dc);
DeleteObject(gdi.bitmap);
nk_free(&gdi.ctx);
}
NK_API void
nk_gdi_render(struct nk_color clear)
{
const struct nk_command *cmd;
HDC memory_dc = gdi.memory_dc;
SelectObject(memory_dc, GetStockObject(DC_PEN));
SelectObject(memory_dc, GetStockObject(DC_BRUSH));
nk_gdi_clear(memory_dc, clear);
nk_foreach(cmd, &gdi.ctx)
{
switch (cmd->type) {
case NK_COMMAND_NOP: break;
case NK_COMMAND_SCISSOR: {
const struct nk_command_scissor *s =(const struct nk_command_scissor*)cmd;
nk_gdi_scissor(memory_dc, s->x, s->y, s->w, s->h);
} break;
case NK_COMMAND_LINE: {
const struct nk_command_line *l = (const struct nk_command_line *)cmd;
nk_gdi_stroke_line(memory_dc, l->begin.x, l->begin.y, l->end.x,
l->end.y, l->line_thickness, l->color);
} break;
case NK_COMMAND_RECT: {
const struct nk_command_rect *r = (const struct nk_command_rect *)cmd;
nk_gdi_stroke_rect(memory_dc, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->line_thickness, r->color);
} break;
case NK_COMMAND_RECT_FILLED: {
const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled *)cmd;
nk_gdi_fill_rect(memory_dc, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->color);
} break;
case NK_COMMAND_CIRCLE: {
const struct nk_command_circle *c = (const struct nk_command_circle *)cmd;
nk_gdi_stroke_circle(memory_dc, c->x, c->y, c->w, c->h, c->line_thickness, c->color);
} break;
case NK_COMMAND_CIRCLE_FILLED: {
const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd;
nk_gdi_fill_circle(memory_dc, c->x, c->y, c->w, c->h, c->color);
} break;
case NK_COMMAND_TRIANGLE: {
const struct nk_command_triangle*t = (const struct nk_command_triangle*)cmd;
nk_gdi_stroke_triangle(memory_dc, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->line_thickness, t->color);
} break;
case NK_COMMAND_TRIANGLE_FILLED: {
const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled *)cmd;
nk_gdi_fill_triangle(memory_dc, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->color);
} break;
case NK_COMMAND_POLYGON: {
const struct nk_command_polygon *p =(const struct nk_command_polygon*)cmd;
nk_gdi_stroke_polygon(memory_dc, p->points, p->point_count, p->line_thickness,p->color);
} break;
case NK_COMMAND_POLYGON_FILLED: {
const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled *)cmd;
nk_gdi_fill_polygon(memory_dc, p->points, p->point_count, p->color);
} break;
case NK_COMMAND_POLYLINE: {
const struct nk_command_polyline *p = (const struct nk_command_polyline *)cmd;
nk_gdi_stroke_polyline(memory_dc, p->points, p->point_count, p->line_thickness, p->color);
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text *t = (const struct nk_command_text*)cmd;
nk_gdi_draw_text(memory_dc, t->x, t->y, t->w, t->h,
(const char*)t->string, t->length,
(GdiFont*)t->font->userdata.ptr,
t->background, t->foreground);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;
nk_gdi_stroke_curve(memory_dc, q->begin, q->ctrl[0], q->ctrl[1],
q->end, q->line_thickness, q->color);
} break;
case NK_COMMAND_RECT_MULTI_COLOR:
case NK_COMMAND_IMAGE:
case NK_COMMAND_ARC:
case NK_COMMAND_ARC_FILLED:
default: break;
}
}
nk_gdi_blit(gdi.window_dc);
nk_clear(&gdi.ctx);
}
#endif

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@ -1,5 +0,0 @@
@echo off
call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
cl /nologo /W3 /O2 /fp:fast /Gm- /Fedemo.exe main.c user32.lib gdiplus.lib /link /incremental:no

155
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@ -1,155 +0,0 @@
/* nuklear - v1.17 - public domain */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#define NK_GDIP_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_gdip.h"
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* These are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
static LRESULT CALLBACK
WindowProc(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg) {
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
if (nk_gdip_handle_event(wnd, msg, wparam, lparam))
return 0;
return DefWindowProcW(wnd, msg, wparam, lparam);
}
int main(void)
{
GdipFont* font;
struct nk_context *ctx;
WNDCLASSW wc;
RECT rect = { 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT };
DWORD style = WS_OVERLAPPEDWINDOW;
DWORD exstyle = WS_EX_APPWINDOW;
HWND wnd;
int running = 1;
int needs_refresh = 1;
/* Win32 */
memset(&wc, 0, sizeof(wc));
wc.lpfnWndProc = WindowProc;
wc.hInstance = GetModuleHandleW(0);
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.lpszClassName = L"NuklearWindowClass";
RegisterClassW(&wc);
AdjustWindowRectEx(&rect, style, FALSE, exstyle);
wnd = CreateWindowExW(exstyle, wc.lpszClassName, L"Nuklear Demo",
style | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT,
rect.right - rect.left, rect.bottom - rect.top,
NULL, NULL, wc.hInstance, NULL);
/* GUI */
ctx = nk_gdip_init(wnd, WINDOW_WIDTH, WINDOW_HEIGHT);
font = nk_gdipfont_create("Arial", 12);
nk_gdip_set_font(font);
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
while (running)
{
/* Input */
MSG msg;
nk_input_begin(ctx);
if (needs_refresh == 0) {
if (GetMessageW(&msg, NULL, 0, 0) <= 0)
running = 0;
else {
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
needs_refresh = 1;
} else needs_refresh = 0;
while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT)
running = 0;
TranslateMessage(&msg);
DispatchMessageW(&msg);
needs_refresh = 1;
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 22, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
nk_gdip_render(NK_ANTI_ALIASING_ON, nk_rgb(30,30,30));
}
nk_gdipfont_del(font);
nk_gdip_shutdown();
UnregisterClassW(wc.lpszClassName, wc.hInstance);
return 0;
}

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165
deps/nuklear/demo/glfw_opengl2/main.c vendored
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/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <limits.h>
#include <time.h>
#include <GLFW/glfw3.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_GLFW_GL2_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_glfw_gl2.h"
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_ELEMENT_BUFFER 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
static void error_callback(int e, const char *d)
{printf("Error %d: %s\n", e, d);}
int main(void)
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
struct nk_context *ctx;
struct nk_color background;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwGetWindowSize(win, &width, &height);
/* GUI */
ctx = nk_glfw3_init(win, NK_GLFW3_INSTALL_CALLBACKS);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_glfw3_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_glfw3_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &droid->handle);*/}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (!glfwWindowShouldClose(win))
{
/* Input */
glfwPollEvents();
nk_glfw3_new_frame();
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
glfwGetWindowSize(win, &width, &height);
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_glfw_render` modifies some global OpenGL state
* with blending, scissor, face culling and depth test and defaults everything
* back into a default state. Make sure to either save and restore or
* reset your own state after drawing rendering the UI. */
nk_glfw3_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
glfwSwapBuffers(win);}
}
nk_glfw3_shutdown();
glfwTerminate();
return 0;
}

350
deps/nuklear/demo/glfw_opengl2/nuklear_glfw_gl2.h vendored
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@ -1,350 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GLFW_GL2_H_
#define NK_GLFW_GL2_H_
#include <GLFW/glfw3.h>
enum nk_glfw_init_state{
NK_GLFW3_DEFAULT = 0,
NK_GLFW3_INSTALL_CALLBACKS
};
NK_API struct nk_context* nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state);
NK_API void nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_glfw3_font_stash_end(void);
NK_API void nk_glfw3_new_frame(void);
NK_API void nk_glfw3_render(enum nk_anti_aliasing , int max_vertex_buffer, int max_element_buffer);
NK_API void nk_glfw3_shutdown(void);
NK_API void nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint);
NK_API void nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GLFW_GL2_IMPLEMENTATION
#ifndef NK_GLFW_TEXT_MAX
#define NK_GLFW_TEXT_MAX 256
#endif
struct nk_glfw_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint font_tex;
};
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_glfw {
GLFWwindow *win;
int width, height;
int display_width, display_height;
struct nk_glfw_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
struct nk_vec2 fb_scale;
unsigned int text[NK_GLFW_TEXT_MAX];
int text_len;
float scroll;
} glfw;
NK_INTERN void
nk_glfw3_device_upload_atlas(const void *image, int width, int height)
{
struct nk_glfw_device *dev = &glfw.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_glfw3_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
/* setup global state */
struct nk_glfw_device *dev = &glfw.ogl;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* setup viewport/project */
glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, glfw.width, glfw.height, 0.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
{
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
const nk_draw_index *offset = NULL;
struct nk_buffer vbuf, ebuf;
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* convert shapes into vertexes */
nk_buffer_init_default(&vbuf);
nk_buffer_init_default(&ebuf);
nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);
/* setup vertex buffer pointer */
{const void *vertices = nk_buffer_memory_const(&vbuf);
glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp));
glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt));
glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));}
/* iterate over and execute each draw command */
offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * glfw.fb_scale.x),
(GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y),
(GLint)(cmd->clip_rect.w * glfw.fb_scale.x),
(GLint)(cmd->clip_rect.h * glfw.fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&glfw.ctx);
nk_buffer_free(&vbuf);
nk_buffer_free(&ebuf);
}
/* default OpenGL state */
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
}
NK_API void
nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint)
{
(void)win;
if (glfw.text_len < NK_GLFW_TEXT_MAX)
glfw.text[glfw.text_len++] = codepoint;
}
NK_API void
nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff)
{
(void)win; (void)xoff;
glfw.scroll += (float)yoff;
}
NK_INTERN void
nk_glfw3_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = glfwGetClipboardString(glfw.win);
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
NK_INTERN void
nk_glfw3_clipbard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
memcpy(str, text, (size_t)len);
str[len] = '\0';
glfwSetClipboardString(glfw.win, str);
free(str);
}
NK_API struct nk_context*
nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state)
{
glfw.win = win;
if (init_state == NK_GLFW3_INSTALL_CALLBACKS) {
glfwSetScrollCallback(win, nk_gflw3_scroll_callback);
glfwSetCharCallback(win, nk_glfw3_char_callback);
}
nk_init_default(&glfw.ctx, 0);
glfw.ctx.clip.copy = nk_glfw3_clipbard_copy;
glfw.ctx.clip.paste = nk_glfw3_clipbard_paste;
glfw.ctx.clip.userdata = nk_handle_ptr(0);
nk_buffer_init_default(&glfw.ogl.cmds);
return &glfw.ctx;
}
NK_API void
nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&glfw.atlas);
nk_font_atlas_begin(&glfw.atlas);
*atlas = &glfw.atlas;
}
NK_API void
nk_glfw3_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_glfw3_device_upload_atlas(image, w, h);
nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null);
if (glfw.atlas.default_font)
nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle);
}
NK_API void
nk_glfw3_new_frame(void)
{
int i;
double x, y;
struct nk_context *ctx = &glfw.ctx;
struct GLFWwindow *win = glfw.win;
glfwGetWindowSize(win, &glfw.width, &glfw.height);
glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height);
glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width;
glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height;
nk_input_begin(ctx);
for (i = 0; i < glfw.text_len; ++i)
nk_input_unicode(ctx, glfw.text[i]);
/* optional grabbing behavior */
if (ctx->input.mouse.grab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
else if (ctx->input.mouse.ungrab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
} else {
nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_COPY, 0);
nk_input_key(ctx, NK_KEY_PASTE, 0);
nk_input_key(ctx, NK_KEY_CUT, 0);
nk_input_key(ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(ctx, (int)x, (int)y);
if (ctx->input.mouse.grabbed) {
glfwSetCursorPos(glfw.win, ctx->input.mouse.prev.x, ctx->input.mouse.prev.y);
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_scroll(ctx, glfw.scroll);
nk_input_end(&glfw.ctx);
glfw.text_len = 0;
glfw.scroll = 0;
}
NK_API
void nk_glfw3_shutdown(void)
{
struct nk_glfw_device *dev = &glfw.ogl;
nk_font_atlas_clear(&glfw.atlas);
nk_free(&glfw.ctx);
glDeleteTextures(1, &dev->font_tex);
nk_buffer_free(&dev->cmds);
memset(&glfw, 0, sizeof(glfw));
}
#endif

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@ -1,180 +0,0 @@
/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <limits.h>
#include <time.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_GLFW_GL3_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_glfw_gl3.h"
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_ELEMENT_BUFFER 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
static void error_callback(int e, const char *d)
{printf("Error %d: %s\n", e, d);}
int main(void)
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
struct nk_context *ctx;
struct nk_color background;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwGetWindowSize(win, &width, &height);
/* OpenGL */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
ctx = nk_glfw3_init(win, NK_GLFW3_INSTALL_CALLBACKS);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_glfw3_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_glfw3_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &droid->handle);*/}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (!glfwWindowShouldClose(win))
{
/* Input */
glfwPollEvents();
nk_glfw3_new_frame();
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
glfwGetWindowSize(win, &width, &height);
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_glfw_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
nk_glfw3_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
glfwSwapBuffers(win);}
}
nk_glfw3_shutdown();
glfwTerminate();
return 0;
}

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@ -1,456 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GLFW_GL3_H_
#define NK_GLFW_GL3_H_
#include <GLFW/glfw3.h>
enum nk_glfw_init_state{
NK_GLFW3_DEFAULT=0,
NK_GLFW3_INSTALL_CALLBACKS
};
NK_API struct nk_context* nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state);
NK_API void nk_glfw3_shutdown(void);
NK_API void nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_glfw3_font_stash_end(void);
NK_API void nk_glfw3_new_frame(void);
NK_API void nk_glfw3_render(enum nk_anti_aliasing, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_glfw3_device_destroy(void);
NK_API void nk_glfw3_device_create(void);
NK_API void nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint);
NK_API void nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GLFW_GL3_IMPLEMENTATION
#ifndef NK_GLFW_TEXT_MAX
#define NK_GLFW_TEXT_MAX 256
#endif
struct nk_glfw_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_glfw {
GLFWwindow *win;
int width, height;
int display_width, display_height;
struct nk_glfw_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
struct nk_vec2 fb_scale;
unsigned int text[NK_GLFW_TEXT_MAX];
int text_len;
float scroll;
} glfw;
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
NK_API void
nk_glfw3_device_create(void)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
struct nk_glfw_device *dev = &glfw.ogl;
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
NK_INTERN void
nk_glfw3_device_upload_atlas(const void *image, int width, int height)
{
struct nk_glfw_device *dev = &glfw.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_glfw3_device_destroy(void)
{
struct nk_glfw_device *dev = &glfw.ogl;
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
NK_API void
nk_glfw3_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
struct nk_glfw_device *dev = &glfw.ogl;
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)glfw.width;
ortho[1][1] /= (GLfloat)glfw.height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, max_vertex_buffer, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, max_element_buffer, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, (size_t)max_vertex_buffer);
nk_buffer_init_fixed(&ebuf, elements, (size_t)max_element_buffer);
nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * glfw.fb_scale.x),
(GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y),
(GLint)(cmd->clip_rect.w * glfw.fb_scale.x),
(GLint)(cmd->clip_rect.h * glfw.fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&glfw.ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
NK_API void
nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint)
{
(void)win;
if (glfw.text_len < NK_GLFW_TEXT_MAX)
glfw.text[glfw.text_len++] = codepoint;
}
NK_API void
nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff)
{
(void)win; (void)xoff;
glfw.scroll += (float)yoff;
}
NK_INTERN void
nk_glfw3_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = glfwGetClipboardString(glfw.win);
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
NK_INTERN void
nk_glfw3_clipbard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
memcpy(str, text, (size_t)len);
str[len] = '\0';
glfwSetClipboardString(glfw.win, str);
free(str);
}
NK_API struct nk_context*
nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state)
{
glfw.win = win;
if (init_state == NK_GLFW3_INSTALL_CALLBACKS) {
glfwSetScrollCallback(win, nk_gflw3_scroll_callback);
glfwSetCharCallback(win, nk_glfw3_char_callback);
}
nk_init_default(&glfw.ctx, 0);
glfw.ctx.clip.copy = nk_glfw3_clipbard_copy;
glfw.ctx.clip.paste = nk_glfw3_clipbard_paste;
glfw.ctx.clip.userdata = nk_handle_ptr(0);
nk_glfw3_device_create();
return &glfw.ctx;
}
NK_API void
nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&glfw.atlas);
nk_font_atlas_begin(&glfw.atlas);
*atlas = &glfw.atlas;
}
NK_API void
nk_glfw3_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_glfw3_device_upload_atlas(image, w, h);
nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null);
if (glfw.atlas.default_font)
nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle);
}
NK_API void
nk_glfw3_new_frame(void)
{
int i;
double x, y;
struct nk_context *ctx = &glfw.ctx;
struct GLFWwindow *win = glfw.win;
glfwGetWindowSize(win, &glfw.width, &glfw.height);
glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height);
glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width;
glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height;
nk_input_begin(ctx);
for (i = 0; i < glfw.text_len; ++i)
nk_input_unicode(ctx, glfw.text[i]);
/* optional grabbing behavior */
if (ctx->input.mouse.grab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
else if (ctx->input.mouse.ungrab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
} else {
nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_COPY, 0);
nk_input_key(ctx, NK_KEY_PASTE, 0);
nk_input_key(ctx, NK_KEY_CUT, 0);
nk_input_key(ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(ctx, (int)x, (int)y);
if (ctx->input.mouse.grabbed) {
glfwSetCursorPos(glfw.win, ctx->input.mouse.prev.x, ctx->input.mouse.prev.y);
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_scroll(ctx, glfw.scroll);
nk_input_end(&glfw.ctx);
glfw.text_len = 0;
glfw.scroll = 0;
}
NK_API
void nk_glfw3_shutdown(void)
{
nk_font_atlas_clear(&glfw.atlas);
nk_free(&glfw.ctx);
nk_glfw3_device_destroy();
memset(&glfw, 0, sizeof(glfw));
}
#endif

343
deps/nuklear/demo/node_editor.c vendored
View File

@ -1,343 +0,0 @@
/* nuklear - v1.00 - public domain */
/* This is a simple node editor just to show a simple implementation and that
* it is possible to achieve it with this library. While all nodes inside this
* example use a simple color modifier as content you could change them
* to have your custom content depending on the node time.
* Biggest difference to most usual implementation is that this example does
* not have connectors on the right position of the property that it links.
* This is mainly done out of laziness and could be implemented as well but
* requires calculating the position of all rows and add connectors.
* In addition adding and removing nodes is quite limited at the
* moment since it is based on a simple fixed array. If this is to be converted
* into something more serious it is probably best to extend it.*/
struct node {
int ID;
char name[32];
struct nk_rect bounds;
float value;
struct nk_color color;
int input_count;
int output_count;
struct node *next;
struct node *prev;
};
struct node_link {
int input_id;
int input_slot;
int output_id;
int output_slot;
struct nk_vec2 in;
struct nk_vec2 out;
};
struct node_linking {
int active;
struct node *node;
int input_id;
int input_slot;
};
struct node_editor {
int initialized;
struct node node_buf[32];
struct node_link links[64];
struct node *begin;
struct node *end;
int node_count;
int link_count;
struct nk_rect bounds;
struct node *selected;
int show_grid;
struct nk_vec2 scrolling;
struct node_linking linking;
};
static struct node_editor nodeEditor;
static void
node_editor_push(struct node_editor *editor, struct node *node)
{
if (!editor->begin) {
node->next = NULL;
node->prev = NULL;
editor->begin = node;
editor->end = node;
} else {
node->prev = editor->end;
if (editor->end)
editor->end->next = node;
node->next = NULL;
editor->end = node;
}
}
static void
node_editor_pop(struct node_editor *editor, struct node *node)
{
if (node->next)
node->next->prev = node->prev;
if (node->prev)
node->prev->next = node->next;
if (editor->end == node)
editor->end = node->prev;
if (editor->begin == node)
editor->begin = node->next;
node->next = NULL;
node->prev = NULL;
}
static struct node*
node_editor_find(struct node_editor *editor, int ID)
{
struct node *iter = editor->begin;
while (iter) {
if (iter->ID == ID)
return iter;
iter = iter->next;
}
return NULL;
}
static void
node_editor_add(struct node_editor *editor, const char *name, struct nk_rect bounds,
struct nk_color col, int in_count, int out_count)
{
static int IDs = 0;
struct node *node;
assert((nk_size)editor->node_count < LEN(editor->node_buf));
node = &editor->node_buf[editor->node_count++];
node->ID = IDs++;
node->value = 0;
node->color = nk_rgb(255, 0, 0);
node->input_count = in_count;
node->output_count = out_count;
node->color = col;
node->bounds = bounds;
strcpy(node->name, name);
node_editor_push(editor, node);
}
static void
node_editor_link(struct node_editor *editor, int in_id, int in_slot,
int out_id, int out_slot)
{
struct node_link *link;
assert((nk_size)editor->link_count < LEN(editor->links));
link = &editor->links[editor->link_count++];
link->input_id = in_id;
link->input_slot = in_slot;
link->output_id = out_id;
link->output_slot = out_slot;
}
static void
node_editor_init(struct node_editor *editor)
{
memset(editor, 0, sizeof(*editor));
editor->begin = NULL;
editor->end = NULL;
node_editor_add(editor, "Source", nk_rect(40, 10, 180, 220), nk_rgb(255, 0, 0), 0, 1);
node_editor_add(editor, "Source", nk_rect(40, 260, 180, 220), nk_rgb(0, 255, 0), 0, 1);
node_editor_add(editor, "Combine", nk_rect(400, 100, 180, 220), nk_rgb(0,0,255), 2, 2);
node_editor_link(editor, 0, 0, 2, 0);
node_editor_link(editor, 1, 0, 2, 1);
editor->show_grid = nk_true;
}
static int
node_editor(struct nk_context *ctx)
{
int n = 0;
struct nk_rect total_space;
const struct nk_input *in = &ctx->input;
struct nk_command_buffer *canvas;
struct node *updated = 0;
struct node_editor *nodedit = &nodeEditor;
if (!nodeEditor.initialized) {
node_editor_init(&nodeEditor);
nodeEditor.initialized = 1;
}
if (nk_begin(ctx, "NodeEdit", nk_rect(0, 0, 800, 600),
NK_WINDOW_BORDER|NK_WINDOW_NO_SCROLLBAR|NK_WINDOW_MOVABLE|NK_WINDOW_CLOSABLE))
{
/* allocate complete window space */
canvas = nk_window_get_canvas(ctx);
total_space = nk_window_get_content_region(ctx);
nk_layout_space_begin(ctx, NK_STATIC, total_space.h, nodedit->node_count);
{
struct node *it = nodedit->begin;
struct nk_rect size = nk_layout_space_bounds(ctx);
if (nodedit->show_grid) {
/* display grid */
float x, y;
const float grid_size = 32.0f;
const struct nk_color grid_color = nk_rgb(50, 50, 50);
for (x = (float)fmod(size.x - nodedit->scrolling.x, grid_size); x < size.w; x += grid_size)
nk_stroke_line(canvas, x+size.x, size.y, x+size.x, size.y+size.h, 1.0f, grid_color);
for (y = (float)fmod(size.y - nodedit->scrolling.y, grid_size); y < size.h; y += grid_size)
nk_stroke_line(canvas, size.x, y+size.y, size.x+size.w, y+size.y, 1.0f, grid_color);
}
/* execute each node as a movable group */
struct nk_panel *node;
while (it) {
/* calculate scrolled node window position and size */
nk_layout_space_push(ctx, nk_rect(it->bounds.x - nodedit->scrolling.x,
it->bounds.y - nodedit->scrolling.y, it->bounds.w, it->bounds.h));
/* execute node window */
if (nk_group_begin(ctx, it->name, NK_WINDOW_MOVABLE|NK_WINDOW_NO_SCROLLBAR|NK_WINDOW_BORDER|NK_WINDOW_TITLE))
{
/* always have last selected node on top */
node = nk_window_get_panel(ctx);
if (nk_input_mouse_clicked(in, NK_BUTTON_LEFT, node->bounds) &&
(!(it->prev && nk_input_mouse_clicked(in, NK_BUTTON_LEFT,
nk_layout_space_rect_to_screen(ctx, node->bounds)))) &&
nodedit->end != it)
{
updated = it;
}
/* ================= NODE CONTENT =====================*/
nk_layout_row_dynamic(ctx, 25, 1);
nk_button_color(ctx, it->color);
it->color.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, it->color.r, 255, 1,1);
it->color.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, it->color.g, 255, 1,1);
it->color.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, it->color.b, 255, 1,1);
it->color.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, it->color.a, 255, 1,1);
/* ====================================================*/
nk_group_end(ctx);
}
{
/* node connector and linking */
float space;
struct nk_rect bounds;
bounds = nk_layout_space_rect_to_local(ctx, node->bounds);
bounds.x += nodedit->scrolling.x;
bounds.y += nodedit->scrolling.y;
it->bounds = bounds;
/* output connector */
space = node->bounds.h / (float)((it->output_count) + 1);
for (n = 0; n < it->output_count; ++n) {
struct nk_rect circle;
circle.x = node->bounds.x + node->bounds.w-4;
circle.y = node->bounds.y + space * (float)(n+1);
circle.w = 8; circle.h = 8;
nk_fill_circle(canvas, circle, nk_rgb(100, 100, 100));
/* start linking process */
if (nk_input_has_mouse_click_down_in_rect(in, NK_BUTTON_LEFT, circle, nk_true)) {
nodedit->linking.active = nk_true;
nodedit->linking.node = it;
nodedit->linking.input_id = it->ID;
nodedit->linking.input_slot = n;
}
/* draw curve from linked node slot to mouse position */
if (nodedit->linking.active && nodedit->linking.node == it &&
nodedit->linking.input_slot == n) {
struct nk_vec2 l0 = nk_vec2(circle.x + 3, circle.y + 3);
struct nk_vec2 l1 = in->mouse.pos;
nk_stroke_curve(canvas, l0.x, l0.y, l0.x + 50.0f, l0.y,
l1.x - 50.0f, l1.y, l1.x, l1.y, 1.0f, nk_rgb(100, 100, 100));
}
}
/* input connector */
space = node->bounds.h / (float)((it->input_count) + 1);
for (n = 0; n < it->input_count; ++n) {
struct nk_rect circle;
circle.x = node->bounds.x-4;
circle.y = node->bounds.y + space * (float)(n+1);
circle.w = 8; circle.h = 8;
nk_fill_circle(canvas, circle, nk_rgb(100, 100, 100));
if (nk_input_is_mouse_released(in, NK_BUTTON_LEFT) &&
nk_input_is_mouse_hovering_rect(in, circle) &&
nodedit->linking.active && nodedit->linking.node != it) {
nodedit->linking.active = nk_false;
node_editor_link(nodedit, nodedit->linking.input_id,
nodedit->linking.input_slot, it->ID, n);
}
}
}
it = it->next;
}
/* reset linking connection */
if (nodedit->linking.active && nk_input_is_mouse_released(in, NK_BUTTON_LEFT)) {
nodedit->linking.active = nk_false;
nodedit->linking.node = NULL;
fprintf(stdout, "linking failed\n");
}
/* draw each link */
for (n = 0; n < nodedit->link_count; ++n) {
struct node_link *link = &nodedit->links[n];
struct node *ni = node_editor_find(nodedit, link->input_id);
struct node *no = node_editor_find(nodedit, link->output_id);
float spacei = node->bounds.h / (float)((ni->output_count) + 1);
float spaceo = node->bounds.h / (float)((no->input_count) + 1);
struct nk_vec2 l0 = nk_layout_space_to_screen(ctx,
nk_vec2(ni->bounds.x + ni->bounds.w, 3.0f + ni->bounds.y + spacei * (float)(link->input_slot+1)));
struct nk_vec2 l1 = nk_layout_space_to_screen(ctx,
nk_vec2(no->bounds.x, 3.0f + no->bounds.y + spaceo * (float)(link->output_slot+1)));
l0.x -= nodedit->scrolling.x;
l0.y -= nodedit->scrolling.y;
l1.x -= nodedit->scrolling.x;
l1.y -= nodedit->scrolling.y;
nk_stroke_curve(canvas, l0.x, l0.y, l0.x + 50.0f, l0.y,
l1.x - 50.0f, l1.y, l1.x, l1.y, 1.0f, nk_rgb(100, 100, 100));
}
if (updated) {
/* reshuffle nodes to have least recently selected node on top */
node_editor_pop(nodedit, updated);
node_editor_push(nodedit, updated);
}
/* node selection */
if (nk_input_mouse_clicked(in, NK_BUTTON_LEFT, nk_layout_space_bounds(ctx))) {
it = nodedit->begin;
nodedit->selected = NULL;
nodedit->bounds = nk_rect(in->mouse.pos.x, in->mouse.pos.y, 100, 200);
while (it) {
struct nk_rect b = nk_layout_space_rect_to_screen(ctx, it->bounds);
b.x -= nodedit->scrolling.x;
b.y -= nodedit->scrolling.y;
if (nk_input_is_mouse_hovering_rect(in, b))
nodedit->selected = it;
it = it->next;
}
}
/* contextual menu */
if (nk_contextual_begin(ctx, 0, nk_vec2(100, 220), nk_window_get_bounds(ctx))) {
const char *grid_option[] = {"Show Grid", "Hide Grid"};
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_contextual_item_label(ctx, "New", NK_TEXT_CENTERED))
node_editor_add(nodedit, "New", nk_rect(400, 260, 180, 220),
nk_rgb(255, 255, 255), 1, 2);
if (nk_contextual_item_label(ctx, grid_option[nodedit->show_grid],NK_TEXT_CENTERED))
nodedit->show_grid = !nodedit->show_grid;
nk_contextual_end(ctx);
}
}
nk_layout_space_end(ctx);
/* window content scrolling */
if (nk_input_is_mouse_hovering_rect(in, nk_window_get_bounds(ctx)) &&
nk_input_is_mouse_down(in, NK_BUTTON_MIDDLE)) {
nodedit->scrolling.x += in->mouse.delta.x;
nodedit->scrolling.y += in->mouse.delta.y;
}
}
nk_end(ctx);
return !nk_window_is_closed(ctx, "NodeEdit");
}

1188
deps/nuklear/demo/overview.c vendored
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181
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/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <limits.h>
#include <time.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_SDL_GL2_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_sdl_gl2.h"
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
int
main(int argc, char* argv[])
{
/* Platform */
SDL_Window *win;
SDL_GLContext glContext;
struct nk_color background;
int win_width, win_height;
int running = 1;
/* GUI */
struct nk_context *ctx;
/* SDL setup */
SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
SDL_Init(SDL_INIT_VIDEO);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
win = SDL_CreateWindow("Demo",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
glContext = SDL_GL_CreateContext(win);
SDL_GetWindowSize(win, &win_width, &win_height);
/* GUI */
ctx = nk_sdl_init(win);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_sdl_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_sdl_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &roboto->handle)*/;}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (running)
{
/* Input */
SDL_Event evt;
nk_input_begin(ctx);
while (SDL_PollEvent(&evt)) {
if (evt.type == SDL_QUIT) goto cleanup;
nk_sdl_handle_event(&evt);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 210, 250),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
SDL_GetWindowSize(win, &win_width, &win_height);
glViewport(0, 0, win_width, win_height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_sdl_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
nk_sdl_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_MEMORY, MAX_ELEMENT_MEMORY);
SDL_GL_SwapWindow(win);}
}
cleanup:
nk_sdl_shutdown();
SDL_GL_DeleteContext(glContext);
SDL_DestroyWindow(win);
SDL_Quit();
return 0;
}

342
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@ -1,342 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_SDL_GL2_H_
#define NK_SDL_GL2_H_
#include <SDL2/SDL.h>
NK_API struct nk_context* nk_sdl_init(SDL_Window *win);
NK_API void nk_sdl_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_sdl_font_stash_end(void);
NK_API int nk_sdl_handle_event(SDL_Event *evt);
NK_API void nk_sdl_render(enum nk_anti_aliasing , int max_vertex_buffer, int max_element_buffer);
NK_API void nk_sdl_shutdown(void);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_SDL_GL2_IMPLEMENTATION
struct nk_sdl_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint font_tex;
};
struct nk_sdl_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_sdl {
SDL_Window *win;
struct nk_sdl_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
} sdl;
NK_INTERN void
nk_sdl_device_upload_atlas(const void *image, int width, int height)
{
struct nk_sdl_device *dev = &sdl.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_sdl_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
/* setup global state */
struct nk_sdl_device *dev = &sdl.ogl;
int width, height;
int display_width, display_height;
struct nk_vec2 scale;
SDL_GetWindowSize(sdl.win, &width, &height);
SDL_GL_GetDrawableSize(sdl.win, &display_width, &display_height);
scale.x = (float)display_width/(float)width;
scale.y = (float)display_height/(float)height;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* setup viewport/project */
glViewport(0,0,(GLsizei)display_width,(GLsizei)display_height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, width, height, 0.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
{
GLsizei vs = sizeof(struct nk_sdl_vertex);
size_t vp = offsetof(struct nk_sdl_vertex, position);
size_t vt = offsetof(struct nk_sdl_vertex, uv);
size_t vc = offsetof(struct nk_sdl_vertex, col);
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
const nk_draw_index *offset = NULL;
struct nk_buffer vbuf, ebuf;
/* fill converting configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_sdl_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_sdl_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_sdl_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* convert shapes into vertexes */
nk_buffer_init_default(&vbuf);
nk_buffer_init_default(&ebuf);
nk_convert(&sdl.ctx, &dev->cmds, &vbuf, &ebuf, &config);
/* setup vertex buffer pointer */
{const void *vertices = nk_buffer_memory_const(&vbuf);
glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp));
glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt));
glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));}
/* iterate over and execute each draw command */
offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
nk_draw_foreach(cmd, &sdl.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * scale.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
(GLint)(cmd->clip_rect.w * scale.x),
(GLint)(cmd->clip_rect.h * scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&sdl.ctx);
nk_buffer_free(&vbuf);
nk_buffer_free(&ebuf);
}
/* default OpenGL state */
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
}
static void
nk_sdl_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = SDL_GetClipboardText();
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
static void
nk_sdl_clipbard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
memcpy(str, text, (size_t)len);
str[len] = '\0';
SDL_SetClipboardText(str);
free(str);
}
NK_API struct nk_context*
nk_sdl_init(SDL_Window *win)
{
sdl.win = win;
nk_init_default(&sdl.ctx, 0);
sdl.ctx.clip.copy = nk_sdl_clipbard_copy;
sdl.ctx.clip.paste = nk_sdl_clipbard_paste;
sdl.ctx.clip.userdata = nk_handle_ptr(0);
nk_buffer_init_default(&sdl.ogl.cmds);
return &sdl.ctx;
}
NK_API void
nk_sdl_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&sdl.atlas);
nk_font_atlas_begin(&sdl.atlas);
*atlas = &sdl.atlas;
}
NK_API void
nk_sdl_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&sdl.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_sdl_device_upload_atlas(image, w, h);
nk_font_atlas_end(&sdl.atlas, nk_handle_id((int)sdl.ogl.font_tex), &sdl.ogl.null);
if (sdl.atlas.default_font)
nk_style_set_font(&sdl.ctx, &sdl.atlas.default_font->handle);
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
SDL_SetRelativeMouseMode(SDL_TRUE);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_WarpMouseInWindow(sdl.win, x, y);
ctx->input.mouse.ungrab = 0;
}
if (evt->type == SDL_KEYUP || evt->type == SDL_KEYDOWN) {
/* key events */
int down = evt->type == SDL_KEYDOWN;
const Uint8* state = SDL_GetKeyboardState(0);
SDL_Keycode sym = evt->key.keysym.sym;
if (sym == SDLK_RSHIFT || sym == SDLK_LSHIFT)
nk_input_key(ctx, NK_KEY_SHIFT, down);
else if (sym == SDLK_DELETE)
nk_input_key(ctx, NK_KEY_DEL, down);
else if (sym == SDLK_RETURN)
nk_input_key(ctx, NK_KEY_ENTER, down);
else if (sym == SDLK_TAB)
nk_input_key(ctx, NK_KEY_TAB, down);
else if (sym == SDLK_BACKSPACE)
nk_input_key(ctx, NK_KEY_BACKSPACE, down);
else if (sym == SDLK_HOME) {
nk_input_key(ctx, NK_KEY_TEXT_START, down);
nk_input_key(ctx, NK_KEY_SCROLL_START, down);
} else if (sym == SDLK_END) {
nk_input_key(ctx, NK_KEY_TEXT_END, down);
nk_input_key(ctx, NK_KEY_SCROLL_END, down);
} else if (sym == SDLK_PAGEDOWN) {
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
} else if (sym == SDLK_PAGEUP) {
nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
} else if (sym == SDLK_z)
nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_r)
nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_c)
nk_input_key(ctx, NK_KEY_COPY, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_v)
nk_input_key(ctx, NK_KEY_PASTE, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_x)
nk_input_key(ctx, NK_KEY_CUT, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_b)
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_e)
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_UP)
nk_input_key(ctx, NK_KEY_UP, down);
else if (sym == SDLK_DOWN)
nk_input_key(ctx, NK_KEY_DOWN, down);
else if (sym == SDLK_LEFT) {
if (state[SDL_SCANCODE_LCTRL])
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
else nk_input_key(ctx, NK_KEY_LEFT, down);
} else if (sym == SDLK_RIGHT) {
if (state[SDL_SCANCODE_LCTRL])
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else nk_input_key(ctx, NK_KEY_RIGHT, down);
} else return 0;
return 1;
} else if (evt->type == SDL_MOUSEBUTTONDOWN || evt->type == SDL_MOUSEBUTTONUP) {
/* mouse button */
int down = evt->type == SDL_MOUSEBUTTONDOWN;
const int x = evt->button.x, y = evt->button.y;
if (evt->button.button == SDL_BUTTON_LEFT)
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
if (evt->button.button == SDL_BUTTON_MIDDLE)
nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down);
if (evt->button.button == SDL_BUTTON_RIGHT)
nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down);
else return 0;
return 1;
} else if (evt->type == SDL_MOUSEMOTION) {
if (ctx->input.mouse.grabbed) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
nk_input_motion(ctx, x + evt->motion.xrel, y + evt->motion.yrel);
} else nk_input_motion(ctx, evt->motion.x, evt->motion.y);
return 1;
} else if (evt->type == SDL_TEXTINPUT) {
nk_glyph glyph;
memcpy(glyph, evt->text.text, NK_UTF_SIZE);
nk_input_glyph(ctx, glyph);
return 1;
} else if (evt->type == SDL_MOUSEWHEEL) {
nk_input_scroll(ctx,(float)evt->wheel.y);
return 1;
}
return 0;
}
NK_API
void nk_sdl_shutdown(void)
{
struct nk_sdl_device *dev = &sdl.ogl;
nk_font_atlas_clear(&sdl.atlas);
nk_free(&sdl.ctx);
glDeleteTextures(1, &dev->font_tex);
nk_buffer_free(&dev->cmds);
memset(&sdl, 0, sizeof(sdl));
}
#endif

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/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <limits.h>
#include <time.h>
#include <GL/glew.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_SDL_GL3_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_sdl_gl3.h"
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
int
main(int argc, char* argv[])
{
/* Platform */
SDL_Window *win;
SDL_GLContext glContext;
struct nk_color background;
int win_width, win_height;
int running = 1;
/* GUI */
struct nk_context *ctx;
/* SDL setup */
SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_EVENTS);
SDL_GL_SetAttribute (SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
SDL_GL_SetAttribute (SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
win = SDL_CreateWindow("Demo",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
glContext = SDL_GL_CreateContext(win);
SDL_GetWindowSize(win, &win_width, &win_height);
/* OpenGL setup */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
ctx = nk_sdl_init(win);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_sdl_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_sdl_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &roboto->handle)*/;}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (running)
{
/* Input */
SDL_Event evt;
nk_input_begin(ctx);
while (SDL_PollEvent(&evt)) {
if (evt.type == SDL_QUIT) goto cleanup;
nk_sdl_handle_event(&evt);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
nk_menubar_begin(ctx);
nk_layout_row_begin(ctx, NK_STATIC, 25, 2);
nk_layout_row_push(ctx, 45);
if (nk_menu_begin_label(ctx, "FILE", NK_TEXT_LEFT, nk_vec2(120, 200))) {
nk_layout_row_dynamic(ctx, 30, 1);
nk_menu_item_label(ctx, "OPEN", NK_TEXT_LEFT);
nk_menu_item_label(ctx, "CLOSE", NK_TEXT_LEFT);
nk_menu_end(ctx);
}
nk_layout_row_push(ctx, 45);
if (nk_menu_begin_label(ctx, "EDIT", NK_TEXT_LEFT, nk_vec2(120, 200))) {
nk_layout_row_dynamic(ctx, 30, 1);
nk_menu_item_label(ctx, "COPY", NK_TEXT_LEFT);
nk_menu_item_label(ctx, "CUT", NK_TEXT_LEFT);
nk_menu_item_label(ctx, "PASTE", NK_TEXT_LEFT);
nk_menu_end(ctx);
}
nk_layout_row_end(ctx);
nk_menubar_end(ctx);
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
}
nk_end(ctx);
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
SDL_GetWindowSize(win, &win_width, &win_height);
glViewport(0, 0, win_width, win_height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_sdl_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
nk_sdl_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_MEMORY, MAX_ELEMENT_MEMORY);
SDL_GL_SwapWindow(win);}
}
cleanup:
nk_sdl_shutdown();
SDL_GL_DeleteContext(glContext);
SDL_DestroyWindow(win);
SDL_Quit();
return 0;
}

437
deps/nuklear/demo/sdl_opengl3/nuklear_sdl_gl3.h vendored
View File

@ -1,437 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_SDL_GL3_H_
#define NK_SDL_GL3_H_
#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>
NK_API struct nk_context* nk_sdl_init(SDL_Window *win);
NK_API void nk_sdl_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_sdl_font_stash_end(void);
NK_API int nk_sdl_handle_event(SDL_Event *evt);
NK_API void nk_sdl_render(enum nk_anti_aliasing , int max_vertex_buffer, int max_element_buffer);
NK_API void nk_sdl_shutdown(void);
NK_API void nk_sdl_device_destroy(void);
NK_API void nk_sdl_device_create(void);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_SDL_GL3_IMPLEMENTATION
#include <string.h>
struct nk_sdl_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
struct nk_sdl_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_sdl {
SDL_Window *win;
struct nk_sdl_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
} sdl;
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
NK_API void
nk_sdl_device_create(void)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
struct nk_sdl_device *dev = &sdl.ogl;
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_sdl_vertex);
size_t vp = offsetof(struct nk_sdl_vertex, position);
size_t vt = offsetof(struct nk_sdl_vertex, uv);
size_t vc = offsetof(struct nk_sdl_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
NK_INTERN void
nk_sdl_device_upload_atlas(const void *image, int width, int height)
{
struct nk_sdl_device *dev = &sdl.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_sdl_device_destroy(void)
{
struct nk_sdl_device *dev = &sdl.ogl;
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
NK_API void
nk_sdl_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
struct nk_sdl_device *dev = &sdl.ogl;
int width, height;
int display_width, display_height;
struct nk_vec2 scale;
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
SDL_GetWindowSize(sdl.win, &width, &height);
SDL_GL_GetDrawableSize(sdl.win, &display_width, &display_height);
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
scale.x = (float)display_width/(float)width;
scale.y = (float)display_height/(float)height;
/* setup global state */
glViewport(0,0,display_width,display_height);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, max_vertex_buffer, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, max_element_buffer, NULL, GL_STREAM_DRAW);
/* load vertices/elements directly into vertex/element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_sdl_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_sdl_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_sdl_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_sdl_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, (nk_size)max_vertex_buffer);
nk_buffer_init_fixed(&ebuf, elements, (nk_size)max_element_buffer);
nk_convert(&sdl.ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, &sdl.ctx, &dev->cmds) {
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor((GLint)(cmd->clip_rect.x * scale.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
(GLint)(cmd->clip_rect.w * scale.x),
(GLint)(cmd->clip_rect.h * scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&sdl.ctx);
}
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
static void
nk_sdl_clipbard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = SDL_GetClipboardText();
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
static void
nk_sdl_clipbard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
memcpy(str, text, (size_t)len);
str[len] = '\0';
SDL_SetClipboardText(str);
free(str);
}
NK_API struct nk_context*
nk_sdl_init(SDL_Window *win)
{
sdl.win = win;
nk_init_default(&sdl.ctx, 0);
sdl.ctx.clip.copy = nk_sdl_clipbard_copy;
sdl.ctx.clip.paste = nk_sdl_clipbard_paste;
sdl.ctx.clip.userdata = nk_handle_ptr(0);
nk_sdl_device_create();
return &sdl.ctx;
}
NK_API void
nk_sdl_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&sdl.atlas);
nk_font_atlas_begin(&sdl.atlas);
*atlas = &sdl.atlas;
}
NK_API void
nk_sdl_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&sdl.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_sdl_device_upload_atlas(image, w, h);
nk_font_atlas_end(&sdl.atlas, nk_handle_id((int)sdl.ogl.font_tex), &sdl.ogl.null);
if (sdl.atlas.default_font)
nk_style_set_font(&sdl.ctx, &sdl.atlas.default_font->handle);
}
NK_API int
nk_sdl_handle_event(SDL_Event *evt)
{
struct nk_context *ctx = &sdl.ctx;
if (evt->type == SDL_KEYUP || evt->type == SDL_KEYDOWN) {
/* key events */
int down = evt->type == SDL_KEYDOWN;
const Uint8* state = SDL_GetKeyboardState(0);
SDL_Keycode sym = evt->key.keysym.sym;
if (sym == SDLK_RSHIFT || sym == SDLK_LSHIFT)
nk_input_key(ctx, NK_KEY_SHIFT, down);
else if (sym == SDLK_DELETE)
nk_input_key(ctx, NK_KEY_DEL, down);
else if (sym == SDLK_RETURN)
nk_input_key(ctx, NK_KEY_ENTER, down);
else if (sym == SDLK_TAB)
nk_input_key(ctx, NK_KEY_TAB, down);
else if (sym == SDLK_BACKSPACE)
nk_input_key(ctx, NK_KEY_BACKSPACE, down);
else if (sym == SDLK_HOME) {
nk_input_key(ctx, NK_KEY_TEXT_START, down);
nk_input_key(ctx, NK_KEY_SCROLL_START, down);
} else if (sym == SDLK_END) {
nk_input_key(ctx, NK_KEY_TEXT_END, down);
nk_input_key(ctx, NK_KEY_SCROLL_END, down);
} else if (sym == SDLK_PAGEDOWN) {
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
} else if (sym == SDLK_PAGEUP) {
nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
} else if (sym == SDLK_z)
nk_input_key(ctx, NK_KEY_TEXT_UNDO, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_r)
nk_input_key(ctx, NK_KEY_TEXT_REDO, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_c)
nk_input_key(ctx, NK_KEY_COPY, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_v)
nk_input_key(ctx, NK_KEY_PASTE, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_x)
nk_input_key(ctx, NK_KEY_CUT, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_b)
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_e)
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down && state[SDL_SCANCODE_LCTRL]);
else if (sym == SDLK_UP)
nk_input_key(ctx, NK_KEY_UP, down);
else if (sym == SDLK_DOWN)
nk_input_key(ctx, NK_KEY_DOWN, down);
else if (sym == SDLK_LEFT) {
if (state[SDL_SCANCODE_LCTRL])
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
else nk_input_key(ctx, NK_KEY_LEFT, down);
} else if (sym == SDLK_RIGHT) {
if (state[SDL_SCANCODE_LCTRL])
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else nk_input_key(ctx, NK_KEY_RIGHT, down);
} else return 0;
return 1;
} else if (evt->type == SDL_MOUSEBUTTONDOWN || evt->type == SDL_MOUSEBUTTONUP) {
/* mouse button */
int down = evt->type == SDL_MOUSEBUTTONDOWN;
const int x = evt->button.x, y = evt->button.y;
if (evt->button.button == SDL_BUTTON_LEFT)
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
if (evt->button.button == SDL_BUTTON_MIDDLE)
nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down);
if (evt->button.button == SDL_BUTTON_RIGHT)
nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down);
return 1;
} else if (evt->type == SDL_MOUSEMOTION) {
if (ctx->input.mouse.grabbed) {
int x = (int)ctx->input.mouse.prev.x, y = (int)ctx->input.mouse.prev.y;
nk_input_motion(ctx, x + evt->motion.xrel, y + evt->motion.yrel);
} else nk_input_motion(ctx, evt->motion.x, evt->motion.y);
return 1;
} else if (evt->type == SDL_TEXTINPUT) {
nk_glyph glyph;
memcpy(glyph, evt->text.text, NK_UTF_SIZE);
nk_input_glyph(ctx, glyph);
return 1;
} else if (evt->type == SDL_MOUSEWHEEL) {
nk_input_scroll(ctx,(float)evt->wheel.y);
return 1;
}
return 0;
}
NK_API
void nk_sdl_shutdown(void)
{
nk_font_atlas_clear(&sdl.atlas);
nk_free(&sdl.ctx);
nk_sdl_device_destroy();
memset(&sdl, 0, sizeof(sdl));
}
#endif

132
deps/nuklear/demo/style.c vendored
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@ -1,132 +0,0 @@
enum theme {THEME_BLACK, THEME_WHITE, THEME_RED, THEME_BLUE, THEME_DARK};
void
set_style(struct nk_context *ctx, enum theme theme)
{
struct nk_color table[NK_COLOR_COUNT];
if (theme == THEME_WHITE) {
table[NK_COLOR_TEXT] = nk_rgba(70, 70, 70, 255);
table[NK_COLOR_WINDOW] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_HEADER] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_BORDER] = nk_rgba(0, 0, 0, 255);
table[NK_COLOR_BUTTON] = nk_rgba(185, 185, 185, 255);
table[NK_COLOR_BUTTON_HOVER] = nk_rgba(170, 170, 170, 255);
table[NK_COLOR_BUTTON_ACTIVE] = nk_rgba(160, 160, 160, 255);
table[NK_COLOR_TOGGLE] = nk_rgba(150, 150, 150, 255);
table[NK_COLOR_TOGGLE_HOVER] = nk_rgba(120, 120, 120, 255);
table[NK_COLOR_TOGGLE_CURSOR] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_SELECT] = nk_rgba(190, 190, 190, 255);
table[NK_COLOR_SELECT_ACTIVE] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_SLIDER] = nk_rgba(190, 190, 190, 255);
table[NK_COLOR_SLIDER_CURSOR] = nk_rgba(80, 80, 80, 255);
table[NK_COLOR_SLIDER_CURSOR_HOVER] = nk_rgba(70, 70, 70, 255);
table[NK_COLOR_SLIDER_CURSOR_ACTIVE] = nk_rgba(60, 60, 60, 255);
table[NK_COLOR_PROPERTY] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_EDIT] = nk_rgba(150, 150, 150, 255);
table[NK_COLOR_EDIT_CURSOR] = nk_rgba(0, 0, 0, 255);
table[NK_COLOR_COMBO] = nk_rgba(175, 175, 175, 255);
table[NK_COLOR_CHART] = nk_rgba(160, 160, 160, 255);
table[NK_COLOR_CHART_COLOR] = nk_rgba(45, 45, 45, 255);
table[NK_COLOR_CHART_COLOR_HIGHLIGHT] = nk_rgba( 255, 0, 0, 255);
table[NK_COLOR_SCROLLBAR] = nk_rgba(180, 180, 180, 255);
table[NK_COLOR_SCROLLBAR_CURSOR] = nk_rgba(140, 140, 140, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_HOVER] = nk_rgba(150, 150, 150, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE] = nk_rgba(160, 160, 160, 255);
table[NK_COLOR_TAB_HEADER] = nk_rgba(180, 180, 180, 255);
nk_style_from_table(ctx, table);
} else if (theme == THEME_RED) {
table[NK_COLOR_TEXT] = nk_rgba(190, 190, 190, 255);
table[NK_COLOR_WINDOW] = nk_rgba(30, 33, 40, 215);
table[NK_COLOR_HEADER] = nk_rgba(181, 45, 69, 220);
table[NK_COLOR_BORDER] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_BUTTON] = nk_rgba(181, 45, 69, 255);
table[NK_COLOR_BUTTON_HOVER] = nk_rgba(190, 50, 70, 255);
table[NK_COLOR_BUTTON_ACTIVE] = nk_rgba(195, 55, 75, 255);
table[NK_COLOR_TOGGLE] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_TOGGLE_HOVER] = nk_rgba(45, 60, 60, 255);
table[NK_COLOR_TOGGLE_CURSOR] = nk_rgba(181, 45, 69, 255);
table[NK_COLOR_SELECT] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_SELECT_ACTIVE] = nk_rgba(181, 45, 69, 255);
table[NK_COLOR_SLIDER] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_SLIDER_CURSOR] = nk_rgba(181, 45, 69, 255);
table[NK_COLOR_SLIDER_CURSOR_HOVER] = nk_rgba(186, 50, 74, 255);
table[NK_COLOR_SLIDER_CURSOR_ACTIVE] = nk_rgba(191, 55, 79, 255);
table[NK_COLOR_PROPERTY] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_EDIT] = nk_rgba(51, 55, 67, 225);
table[NK_COLOR_EDIT_CURSOR] = nk_rgba(190, 190, 190, 255);
table[NK_COLOR_COMBO] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_CHART] = nk_rgba(51, 55, 67, 255);
table[NK_COLOR_CHART_COLOR] = nk_rgba(170, 40, 60, 255);
table[NK_COLOR_CHART_COLOR_HIGHLIGHT] = nk_rgba( 255, 0, 0, 255);
table[NK_COLOR_SCROLLBAR] = nk_rgba(30, 33, 40, 255);
table[NK_COLOR_SCROLLBAR_CURSOR] = nk_rgba(64, 84, 95, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_HOVER] = nk_rgba(70, 90, 100, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE] = nk_rgba(75, 95, 105, 255);
table[NK_COLOR_TAB_HEADER] = nk_rgba(181, 45, 69, 220);
nk_style_from_table(ctx, table);
} else if (theme == THEME_BLUE) {
table[NK_COLOR_TEXT] = nk_rgba(20, 20, 20, 255);
table[NK_COLOR_WINDOW] = nk_rgba(202, 212, 214, 215);
table[NK_COLOR_HEADER] = nk_rgba(137, 182, 224, 220);
table[NK_COLOR_BORDER] = nk_rgba(140, 159, 173, 255);
table[NK_COLOR_BUTTON] = nk_rgba(137, 182, 224, 255);
table[NK_COLOR_BUTTON_HOVER] = nk_rgba(142, 187, 229, 255);
table[NK_COLOR_BUTTON_ACTIVE] = nk_rgba(147, 192, 234, 255);
table[NK_COLOR_TOGGLE] = nk_rgba(177, 210, 210, 255);
table[NK_COLOR_TOGGLE_HOVER] = nk_rgba(182, 215, 215, 255);
table[NK_COLOR_TOGGLE_CURSOR] = nk_rgba(137, 182, 224, 255);
table[NK_COLOR_SELECT] = nk_rgba(177, 210, 210, 255);
table[NK_COLOR_SELECT_ACTIVE] = nk_rgba(137, 182, 224, 255);
table[NK_COLOR_SLIDER] = nk_rgba(177, 210, 210, 255);
table[NK_COLOR_SLIDER_CURSOR] = nk_rgba(137, 182, 224, 245);
table[NK_COLOR_SLIDER_CURSOR_HOVER] = nk_rgba(142, 188, 229, 255);
table[NK_COLOR_SLIDER_CURSOR_ACTIVE] = nk_rgba(147, 193, 234, 255);
table[NK_COLOR_PROPERTY] = nk_rgba(210, 210, 210, 255);
table[NK_COLOR_EDIT] = nk_rgba(210, 210, 210, 225);
table[NK_COLOR_EDIT_CURSOR] = nk_rgba(20, 20, 20, 255);
table[NK_COLOR_COMBO] = nk_rgba(210, 210, 210, 255);
table[NK_COLOR_CHART] = nk_rgba(210, 210, 210, 255);
table[NK_COLOR_CHART_COLOR] = nk_rgba(137, 182, 224, 255);
table[NK_COLOR_CHART_COLOR_HIGHLIGHT] = nk_rgba( 255, 0, 0, 255);
table[NK_COLOR_SCROLLBAR] = nk_rgba(190, 200, 200, 255);
table[NK_COLOR_SCROLLBAR_CURSOR] = nk_rgba(64, 84, 95, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_HOVER] = nk_rgba(70, 90, 100, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE] = nk_rgba(75, 95, 105, 255);
table[NK_COLOR_TAB_HEADER] = nk_rgba(156, 193, 220, 255);
nk_style_from_table(ctx, table);
} else if (theme == THEME_DARK) {
table[NK_COLOR_TEXT] = nk_rgba(210, 210, 210, 255);
table[NK_COLOR_WINDOW] = nk_rgba(57, 67, 71, 215);
table[NK_COLOR_HEADER] = nk_rgba(51, 51, 56, 220);
table[NK_COLOR_BORDER] = nk_rgba(46, 46, 46, 255);
table[NK_COLOR_BUTTON] = nk_rgba(48, 83, 111, 255);
table[NK_COLOR_BUTTON_HOVER] = nk_rgba(58, 93, 121, 255);
table[NK_COLOR_BUTTON_ACTIVE] = nk_rgba(63, 98, 126, 255);
table[NK_COLOR_TOGGLE] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_TOGGLE_HOVER] = nk_rgba(45, 53, 56, 255);
table[NK_COLOR_TOGGLE_CURSOR] = nk_rgba(48, 83, 111, 255);
table[NK_COLOR_SELECT] = nk_rgba(57, 67, 61, 255);
table[NK_COLOR_SELECT_ACTIVE] = nk_rgba(48, 83, 111, 255);
table[NK_COLOR_SLIDER] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_SLIDER_CURSOR] = nk_rgba(48, 83, 111, 245);
table[NK_COLOR_SLIDER_CURSOR_HOVER] = nk_rgba(53, 88, 116, 255);
table[NK_COLOR_SLIDER_CURSOR_ACTIVE] = nk_rgba(58, 93, 121, 255);
table[NK_COLOR_PROPERTY] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_EDIT] = nk_rgba(50, 58, 61, 225);
table[NK_COLOR_EDIT_CURSOR] = nk_rgba(210, 210, 210, 255);
table[NK_COLOR_COMBO] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_CHART] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_CHART_COLOR] = nk_rgba(48, 83, 111, 255);
table[NK_COLOR_CHART_COLOR_HIGHLIGHT] = nk_rgba(255, 0, 0, 255);
table[NK_COLOR_SCROLLBAR] = nk_rgba(50, 58, 61, 255);
table[NK_COLOR_SCROLLBAR_CURSOR] = nk_rgba(48, 83, 111, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_HOVER] = nk_rgba(53, 88, 116, 255);
table[NK_COLOR_SCROLLBAR_CURSOR_ACTIVE] = nk_rgba(58, 93, 121, 255);
table[NK_COLOR_TAB_HEADER] = nk_rgba(48, 83, 111, 255);
nk_style_from_table(ctx, table);
} else {
nk_style_default(ctx);
}
}

203
deps/nuklear/demo/x11/main.c vendored
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@ -1,203 +0,0 @@
/* nuklear - v1.17 - public domain */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <sys/time.h>
#include <unistd.h>
#include <time.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#define NK_XLIB_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_xlib.h"
#define DTIME 20
#define WINDOW_WIDTH 800
#define WINDOW_HEIGHT 600
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
typedef struct XWindow XWindow;
struct XWindow {
Display *dpy;
Window root;
Visual *vis;
Colormap cmap;
XWindowAttributes attr;
XSetWindowAttributes swa;
Window win;
int screen;
XFont *font;
unsigned int width;
unsigned int height;
};
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static void*
xcalloc(size_t siz, size_t n)
{
void *ptr = calloc(siz, n);
if (!ptr) die("Out of memory\n");
return ptr;
}
static long
timestamp(void)
{
struct timeval tv;
if (gettimeofday(&tv, NULL) < 0) return 0;
return (long)((long)tv.tv_sec * 1000 + (long)tv.tv_usec/1000);
}
static void
sleep_for(long t)
{
struct timespec req;
const time_t sec = (int)(t/1000);
const long ms = t - (sec * 1000);
req.tv_sec = sec;
req.tv_nsec = ms * 1000000L;
while(-1 == nanosleep(&req, &req));
}
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
#include "../overview.c"
#include "../node_editor.c"
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
int
main(void)
{
long dt;
long started;
int running = 1;
XWindow xw;
struct nk_context *ctx;
/* X11 */
memset(&xw, 0, sizeof xw);
xw.dpy = XOpenDisplay(NULL);
if (!xw.dpy) die("Could not open a display; perhaps $DISPLAY is not set?");
xw.root = DefaultRootWindow(xw.dpy);
xw.screen = XDefaultScreen(xw.dpy);
xw.vis = XDefaultVisual(xw.dpy, xw.screen);
xw.cmap = XCreateColormap(xw.dpy,xw.root,xw.vis,AllocNone);
xw.swa.colormap = xw.cmap;
xw.swa.event_mask =
ExposureMask | KeyPressMask | KeyReleaseMask |
ButtonPress | ButtonReleaseMask| ButtonMotionMask |
Button1MotionMask | Button3MotionMask | Button4MotionMask | Button5MotionMask|
PointerMotionMask | KeymapStateMask;
xw.win = XCreateWindow(xw.dpy, xw.root, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, 0,
XDefaultDepth(xw.dpy, xw.screen), InputOutput,
xw.vis, CWEventMask | CWColormap, &xw.swa);
XStoreName(xw.dpy, xw.win, "X11");
XMapWindow(xw.dpy, xw.win);
XGetWindowAttributes(xw.dpy, xw.win, &xw.attr);
xw.width = (unsigned int)xw.attr.width;
xw.height = (unsigned int)xw.attr.height;
/* GUI */
xw.font = nk_xfont_create(xw.dpy, "fixed");
ctx = nk_xlib_init(xw.font, xw.dpy, xw.screen, xw.win, xw.width, xw.height);
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
while (running)
{
/* Input */
XEvent evt;
started = timestamp();
nk_input_begin(ctx);
while (XCheckWindowEvent(xw.dpy, xw.win, xw.swa.event_mask, &evt)){
if (XFilterEvent(&evt, xw.win)) continue;
nk_xlib_handle_event(xw.dpy, xw.screen, xw.win, &evt);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
overview(ctx);
node_editor(ctx);
/* ----------------------------------------- */
/* Draw */
XClearWindow(xw.dpy, xw.win);
nk_xlib_render(xw.win, nk_rgb(30,30,30));
XFlush(xw.dpy);
/* Timing */
dt = timestamp() - started;
if (dt < DTIME)
sleep_for(DTIME - dt);
}
nk_xfont_del(xw.dpy, xw.font);
nk_xlib_shutdown();
XUnmapWindow(xw.dpy, xw.win);
XFreeColormap(xw.dpy, xw.cmap);
XDestroyWindow(xw.dpy, xw.win);
XCloseDisplay(xw.dpy);
return 0;
}

693
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@ -1,693 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_XLIB_H_
#define NK_XLIB_H_
#include <X11/Xlib.h>
/* Font */
typedef struct XFont XFont;
NK_API XFont* nk_xfont_create(Display *dpy, const char *name);
NK_API void nk_xfont_del(Display *dpy, XFont *font);
NK_API struct nk_context* nk_xlib_init(XFont *font, Display *dpy, int screen, Window root, unsigned int w, unsigned int h);
NK_API int nk_xlib_handle_event(Display *dpy, int screen, Window win, XEvent *evt);
NK_API void nk_xlib_render(Drawable screen, struct nk_color clear);
NK_API void nk_xlib_shutdown(void);
NK_API void nk_xlib_set_font(XFont *font);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_XLIB_IMPLEMENTATION
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <X11/Xlocale.h>
typedef struct XSurface XSurface;
struct XFont {
int ascent;
int descent;
int height;
XFontSet set;
XFontStruct *xfont;
struct nk_user_font handle;
};
struct XSurface {
GC gc;
Display *dpy;
int screen;
Window root;
Drawable drawable;
unsigned int w, h;
};
static struct {
struct nk_context ctx;
struct XSurface *surf;
Cursor cursor;
Display *dpy;
Window root;
} xlib;
#ifndef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#endif
static unsigned long
nk_color_from_byte(const nk_byte *c)
{
unsigned long res = 0;
res |= (unsigned long)c[0] << 16;
res |= (unsigned long)c[1] << 8;
res |= (unsigned long)c[2] << 0;
return (res);
}
static XSurface*
nk_xsurf_create(int screen, unsigned int w, unsigned int h)
{
XSurface *surface = (XSurface*)calloc(1, sizeof(XSurface));
surface->w = w;
surface->h = h;
surface->dpy = xlib.dpy;
surface->screen = screen;
surface->root = xlib.root;
surface->gc = XCreateGC(xlib.dpy, xlib.root, 0, NULL);
XSetLineAttributes(xlib.dpy, surface->gc, 1, LineSolid, CapButt, JoinMiter);
surface->drawable = XCreatePixmap(xlib.dpy, xlib.root, w, h,
(unsigned int)DefaultDepth(xlib.dpy, screen));
return surface;
}
static void
nk_xsurf_resize(XSurface *surf, unsigned int w, unsigned int h)
{
if(!surf) return;
if (surf->w == w && surf->h == h) return;
surf->w = w; surf->h = h;
if(surf->drawable) XFreePixmap(surf->dpy, surf->drawable);
surf->drawable = XCreatePixmap(surf->dpy, surf->root, w, h,
(unsigned int)DefaultDepth(surf->dpy, surf->screen));
}
static void
nk_xsurf_scissor(XSurface *surf, float x, float y, float w, float h)
{
XRectangle clip_rect;
clip_rect.x = (short)(x-1);
clip_rect.y = (short)(y-1);
clip_rect.width = (unsigned short)(w+2);
clip_rect.height = (unsigned short)(h+2);
XSetClipRectangles(surf->dpy, surf->gc, 0, 0, &clip_rect, 1, Unsorted);
}
static void
nk_xsurf_stroke_line(XSurface *surf, short x0, short y0, short x1,
short y1, unsigned int line_thickness, struct nk_color col)
{
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
XDrawLine(surf->dpy, surf->drawable, surf->gc, (int)x0, (int)y0, (int)x1, (int)y1);
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_stroke_rect(XSurface* surf, short x, short y, unsigned short w,
unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col)
{
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
if (r == 0) {
XDrawRectangle(surf->dpy, surf->drawable, surf->gc, x, y, w, h);
} else {
short xc = x + r;
short yc = y + r;
short wc = (short)(w - 2 * r);
short hc = (short)(h - 2 * r);
XDrawLine(surf->dpy, surf->drawable, surf->gc, xc, y, xc+wc, y);
XDrawLine(surf->dpy, surf->drawable, surf->gc, x+w, yc, x+w, yc+hc);
XDrawLine(surf->dpy, surf->drawable, surf->gc, xc, y+h, xc+wc, y+h);
XDrawLine(surf->dpy, surf->drawable, surf->gc, x, yc, x, yc+hc);
XDrawArc(surf->dpy, surf->drawable, surf->gc, xc + wc - r, y,
(unsigned)r*2, (unsigned)r*2, 0 * 64, 90 * 64);
XDrawArc(surf->dpy, surf->drawable, surf->gc, x, y,
(unsigned)r*2, (unsigned)r*2, 90 * 64, 90 * 64);
XDrawArc(surf->dpy, surf->drawable, surf->gc, x, yc + hc - r,
(unsigned)r*2, (unsigned)2*r, 180 * 64, 90 * 64);
XDrawArc(surf->dpy, surf->drawable, surf->gc, xc + wc - r, yc + hc - r,
(unsigned)r*2, (unsigned)2*r, -90 * 64, 90 * 64);
}
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_fill_rect(XSurface* surf, short x, short y, unsigned short w,
unsigned short h, unsigned short r, struct nk_color col)
{
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
if (r == 0) {
XFillRectangle(surf->dpy, surf->drawable, surf->gc, x, y, w, h);
} else {
short xc = x + r;
short yc = y + r;
short wc = (short)(w - 2 * r);
short hc = (short)(h - 2 * r);
XPoint pnts[12];
pnts[0].x = x;
pnts[0].y = yc;
pnts[1].x = xc;
pnts[1].y = yc;
pnts[2].x = xc;
pnts[2].y = y;
pnts[3].x = xc + wc;
pnts[3].y = y;
pnts[4].x = xc + wc;
pnts[4].y = yc;
pnts[5].x = x + w;
pnts[5].y = yc;
pnts[6].x = x + w;
pnts[6].y = yc + hc;
pnts[7].x = xc + wc;
pnts[7].y = yc + hc;
pnts[8].x = xc + wc;
pnts[8].y = y + h;
pnts[9].x = xc;
pnts[9].y = y + h;
pnts[10].x = xc;
pnts[10].y = yc + hc;
pnts[11].x = x;
pnts[11].y = yc + hc;
XFillPolygon(surf->dpy, surf->drawable, surf->gc, pnts, 12, Convex, CoordModeOrigin);
XFillArc(surf->dpy, surf->drawable, surf->gc, xc + wc - r, y,
(unsigned)r*2, (unsigned)r*2, 0 * 64, 90 * 64);
XFillArc(surf->dpy, surf->drawable, surf->gc, x, y,
(unsigned)r*2, (unsigned)r*2, 90 * 64, 90 * 64);
XFillArc(surf->dpy, surf->drawable, surf->gc, x, yc + hc - r,
(unsigned)r*2, (unsigned)2*r, 180 * 64, 90 * 64);
XFillArc(surf->dpy, surf->drawable, surf->gc, xc + wc - r, yc + hc - r,
(unsigned)r*2, (unsigned)2*r, -90 * 64, 90 * 64);
}
}
static void
nk_xsurf_fill_triangle(XSurface *surf, short x0, short y0, short x1,
short y1, short x2, short y2, struct nk_color col)
{
XPoint pnts[3];
unsigned long c = nk_color_from_byte(&col.r);
pnts[0].x = (short)x0;
pnts[0].y = (short)y0;
pnts[1].x = (short)x1;
pnts[1].y = (short)y1;
pnts[2].x = (short)x2;
pnts[2].y = (short)y2;
XSetForeground(surf->dpy, surf->gc, c);
XFillPolygon(surf->dpy, surf->drawable, surf->gc, pnts, 3, Convex, CoordModeOrigin);
}
static void
nk_xsurf_stroke_triangle(XSurface *surf, short x0, short y0, short x1,
short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col)
{
XPoint pnts[3];
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
XDrawLine(surf->dpy, surf->drawable, surf->gc, x0, y0, x1, y1);
XDrawLine(surf->dpy, surf->drawable, surf->gc, x1, y1, x2, y2);
XDrawLine(surf->dpy, surf->drawable, surf->gc, x2, y2, x0, y0);
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_fill_polygon(XSurface *surf, const struct nk_vec2i *pnts, int count,
struct nk_color col)
{
int i = 0;
#define MAX_POINTS 64
XPoint xpnts[MAX_POINTS];
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
for (i = 0; i < count && i < MAX_POINTS; ++i) {
xpnts[i].x = pnts[i].x;
xpnts[i].y = pnts[i].y;
}
XFillPolygon(surf->dpy, surf->drawable, surf->gc, xpnts, count, Convex, CoordModeOrigin);
#undef MAX_POINTS
}
static void
nk_xsurf_stroke_polygon(XSurface *surf, const struct nk_vec2i *pnts, int count,
unsigned short line_thickness, struct nk_color col)
{
int i = 0;
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
for (i = 1; i < count; ++i)
XDrawLine(surf->dpy, surf->drawable, surf->gc, pnts[i-1].x, pnts[i-1].y, pnts[i].x, pnts[i].y);
XDrawLine(surf->dpy, surf->drawable, surf->gc, pnts[count-1].x, pnts[count-1].y, pnts[0].x, pnts[0].y);
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_stroke_polyline(XSurface *surf, const struct nk_vec2i *pnts,
int count, unsigned short line_thickness, struct nk_color col)
{
int i = 0;
unsigned long c = nk_color_from_byte(&col.r);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
XSetForeground(surf->dpy, surf->gc, c);
for (i = 0; i < count-1; ++i)
XDrawLine(surf->dpy, surf->drawable, surf->gc, pnts[i].x, pnts[i].y, pnts[i+1].x, pnts[i+1].y);
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_fill_circle(XSurface *surf, short x, short y, unsigned short w,
unsigned short h, struct nk_color col)
{
unsigned long c = nk_color_from_byte(&col.r);
XSetForeground(surf->dpy, surf->gc, c);
XFillArc(surf->dpy, surf->drawable, surf->gc, (int)x, (int)y,
(unsigned)w, (unsigned)h, 0, 360 * 64);
}
static void
nk_xsurf_stroke_circle(XSurface *surf, short x, short y, unsigned short w,
unsigned short h, unsigned short line_thickness, struct nk_color col)
{
unsigned long c = nk_color_from_byte(&col.r);
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
XSetForeground(surf->dpy, surf->gc, c);
XDrawArc(surf->dpy, surf->drawable, surf->gc, (int)x, (int)y,
(unsigned)w, (unsigned)h, 0, 360 * 64);
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_stroke_curve(XSurface *surf, struct nk_vec2i p1,
struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4,
unsigned int num_segments, unsigned short line_thickness, struct nk_color col)
{
unsigned int i_step;
float t_step;
struct nk_vec2i last = p1;
XSetLineAttributes(surf->dpy, surf->gc, line_thickness, LineSolid, CapButt, JoinMiter);
num_segments = MAX(num_segments, 1);
t_step = 1.0f/(float)num_segments;
for (i_step = 1; i_step <= num_segments; ++i_step) {
float t = t_step * (float)i_step;
float u = 1.0f - t;
float w1 = u*u*u;
float w2 = 3*u*u*t;
float w3 = 3*u*t*t;
float w4 = t * t *t;
float x = w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x;
float y = w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y;
nk_xsurf_stroke_line(surf, last.x, last.y, (short)x, (short)y, line_thickness,col);
last.x = (short)x; last.y = (short)y;
}
XSetLineAttributes(surf->dpy, surf->gc, 1, LineSolid, CapButt, JoinMiter);
}
static void
nk_xsurf_draw_text(XSurface *surf, short x, short y, unsigned short w, unsigned short h,
const char *text, int len, XFont *font, struct nk_color cbg, struct nk_color cfg)
{
int tx, ty;
unsigned long bg = nk_color_from_byte(&cbg.r);
unsigned long fg = nk_color_from_byte(&cfg.r);
XSetForeground(surf->dpy, surf->gc, bg);
XFillRectangle(surf->dpy, surf->drawable, surf->gc, (int)x, (int)y, (unsigned)w, (unsigned)h);
if(!text || !font || !len) return;
tx = (int)x;
ty = (int)y + font->ascent;
XSetForeground(surf->dpy, surf->gc, fg);
if(font->set)
XmbDrawString(surf->dpy,surf->drawable,font->set,surf->gc,tx,ty,(const char*)text,(int)len);
else
XDrawString(surf->dpy, surf->drawable, surf->gc, tx, ty, (const char*)text, (int)len);
}
static void
nk_xsurf_clear(XSurface *surf, unsigned long color)
{
XSetForeground(surf->dpy, surf->gc, color);
XFillRectangle(surf->dpy, surf->drawable, surf->gc, 0, 0, surf->w, surf->h);
}
static void
nk_xsurf_blit(Drawable target, XSurface *surf, unsigned int w, unsigned int h)
{
XCopyArea(surf->dpy, surf->drawable, target, surf->gc, 0, 0, w, h, 0, 0);
}
static void
nk_xsurf_del(XSurface *surf)
{
XFreePixmap(surf->dpy, surf->drawable);
XFreeGC(surf->dpy, surf->gc);
free(surf);
}
XFont*
nk_xfont_create(Display *dpy, const char *name)
{
int n;
char *def, **missing;
XFont *font = (XFont*)calloc(1, sizeof(XFont));
font->set = XCreateFontSet(dpy, name, &missing, &n, &def);
if(missing) {
while(n--)
fprintf(stderr, "missing fontset: %s\n", missing[n]);
XFreeStringList(missing);
}
if(font->set) {
XFontStruct **xfonts;
char **font_names;
XExtentsOfFontSet(font->set);
n = XFontsOfFontSet(font->set, &xfonts, &font_names);
while(n--) {
font->ascent = MAX(font->ascent, (*xfonts)->ascent);
font->descent = MAX(font->descent,(*xfonts)->descent);
xfonts++;
}
} else {
if(!(font->xfont = XLoadQueryFont(dpy, name))
&& !(font->xfont = XLoadQueryFont(dpy, "fixed"))) {
free(font);
return 0;
}
font->ascent = font->xfont->ascent;
font->descent = font->xfont->descent;
}
font->height = font->ascent + font->descent;
return font;
}
static float
nk_xfont_get_text_width(nk_handle handle, float height, const char *text, int len)
{
XFont *font = (XFont*)handle.ptr;
XRectangle r;
if(!font || !text)
return 0;
if(font->set) {
XmbTextExtents(font->set, (const char*)text, len, NULL, &r);
return (float)r.width;
} else{
int w = XTextWidth(font->xfont, (const char*)text, len);
return (float)w;
}
}
void
nk_xfont_del(Display *dpy, XFont *font)
{
if(!font) return;
if(font->set)
XFreeFontSet(dpy, font->set);
else
XFreeFont(dpy, font->xfont);
free(font);
}
NK_API struct nk_context*
nk_xlib_init(XFont *xfont, Display *dpy, int screen, Window root,
unsigned int w, unsigned int h)
{
struct nk_user_font *font = &xfont->handle;
font->userdata = nk_handle_ptr(xfont);
font->height = (float)xfont->height;
font->width = nk_xfont_get_text_width;
xlib.dpy = dpy;
xlib.root = root;
if (!setlocale(LC_ALL,"")) return 0;
if (!XSupportsLocale()) return 0;
if (!XSetLocaleModifiers("@im=none")) return 0;
/* create invisible cursor */
{static XColor dummy; char data[1] = {0};
Pixmap blank = XCreateBitmapFromData(dpy, root, data, 1, 1);
if (blank == None) return 0;
xlib.cursor = XCreatePixmapCursor(dpy, blank, blank, &dummy, &dummy, 0, 0);
XFreePixmap(dpy, blank);}
xlib.surf = nk_xsurf_create(screen, w, h);
nk_init_default(&xlib.ctx, font);
return &xlib.ctx;
}
NK_API void
nk_xlib_set_font(XFont *xfont)
{
struct nk_user_font *font = &xfont->handle;
font->userdata = nk_handle_ptr(xfont);
font->height = (float)xfont->height;
font->width = nk_xfont_get_text_width;
nk_style_set_font(&xlib.ctx, font);
}
NK_API int
nk_xlib_handle_event(Display *dpy, int screen, Window win, XEvent *evt)
{
struct nk_context *ctx = &xlib.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
XDefineCursor(xlib.dpy, xlib.root, xlib.cursor);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
XWarpPointer(xlib.dpy, None, xlib.root, 0, 0, 0, 0,
(int)ctx->input.mouse.prev.x, (int)ctx->input.mouse.prev.y);
XUndefineCursor(xlib.dpy, xlib.root);
ctx->input.mouse.ungrab = 0;
}
if (evt->type == KeyPress || evt->type == KeyRelease)
{
/* Key handler */
int ret, down = (evt->type == KeyPress);
KeySym *code = XGetKeyboardMapping(xlib.surf->dpy, (KeyCode)evt->xkey.keycode, 1, &ret);
if (*code == XK_Shift_L || *code == XK_Shift_R) nk_input_key(ctx, NK_KEY_SHIFT, down);
else if (*code == XK_Delete) nk_input_key(ctx, NK_KEY_DEL, down);
else if (*code == XK_Return) nk_input_key(ctx, NK_KEY_ENTER, down);
else if (*code == XK_Tab) nk_input_key(ctx, NK_KEY_TAB, down);
else if (*code == XK_Left) nk_input_key(ctx, NK_KEY_LEFT, down);
else if (*code == XK_Right) nk_input_key(ctx, NK_KEY_RIGHT, down);
else if (*code == XK_Up) nk_input_key(ctx, NK_KEY_UP, down);
else if (*code == XK_Down) nk_input_key(ctx, NK_KEY_DOWN, down);
else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
else if (*code == XK_Escape) nk_input_key(ctx, NK_KEY_TEXT_RESET_MODE, down);
else if (*code == XK_Page_Up) nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
else if (*code == XK_Home) {
nk_input_key(ctx, NK_KEY_TEXT_START, down);
nk_input_key(ctx, NK_KEY_SCROLL_START, down);
} else if (*code == XK_End) {
nk_input_key(ctx, NK_KEY_TEXT_END, down);
nk_input_key(ctx, NK_KEY_SCROLL_END, down);
} else {
if (*code == 'c' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_COPY, down);
else if (*code == 'v' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_PASTE, down);
else if (*code == 'x' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_CUT, down);
else if (*code == 'z' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_UNDO, down);
else if (*code == 'r' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_REDO, down);
else if (*code == XK_Left && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
else if (*code == XK_Right && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else if (*code == 'b' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down);
else if (*code == 'e' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down);
else {
if (*code == 'i')
nk_input_key(ctx, NK_KEY_TEXT_INSERT_MODE, down);
else if (*code == 'r')
nk_input_key(ctx, NK_KEY_TEXT_REPLACE_MODE, down);
if (down) {
char buf[32];
KeySym keysym = 0;
if (XLookupString((XKeyEvent*)evt, buf, 32, &keysym, NULL) != NoSymbol)
nk_input_glyph(ctx, buf);
}
}
}
XFree(code);
return 1;
} else if (evt->type == ButtonPress || evt->type == ButtonRelease) {
/* Button handler */
int down = (evt->type == ButtonPress);
const int x = evt->xbutton.x, y = evt->xbutton.y;
if (evt->xbutton.button == Button1)
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
if (evt->xbutton.button == Button2)
nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down);
else if (evt->xbutton.button == Button3)
nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down);
else if (evt->xbutton.button == Button4)
nk_input_scroll(ctx, 1.0f);
else if (evt->xbutton.button == Button5)
nk_input_scroll(ctx, -1.0f);
else return 0;
return 1;
} else if (evt->type == MotionNotify) {
/* Mouse motion handler */
const int x = evt->xmotion.x, y = evt->xmotion.y;
nk_input_motion(ctx, x, y);
if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
XWarpPointer(xlib.dpy, None, xlib.surf->root, 0, 0, 0, 0, (int)ctx->input.mouse.pos.x, (int)ctx->input.mouse.pos.y);
}
return 1;
} else if (evt->type == Expose || evt->type == ConfigureNotify) {
/* Window resize handler */
unsigned int width, height;
XWindowAttributes attr;
XGetWindowAttributes(dpy, win, &attr);
width = (unsigned int)attr.width;
height = (unsigned int)attr.height;
nk_xsurf_resize(xlib.surf, width, height);
return 1;
} else if (evt->type == KeymapNotify) {
XRefreshKeyboardMapping(&evt->xmapping);
return 1;
}
return 0;
}
NK_API void
nk_xlib_shutdown(void)
{
nk_xsurf_del(xlib.surf);
nk_free(&xlib.ctx);
XFreeCursor(xlib.dpy, xlib.cursor);
nk_memset(&xlib, 0, sizeof(xlib));
}
NK_API void
nk_xlib_render(Drawable screen, struct nk_color clear)
{
const struct nk_command *cmd;
struct nk_context *ctx = &xlib.ctx;
XSurface *surf = xlib.surf;
nk_xsurf_clear(xlib.surf, nk_color_from_byte(&clear.r));
nk_foreach(cmd, &xlib.ctx)
{
switch (cmd->type) {
case NK_COMMAND_NOP: break;
case NK_COMMAND_SCISSOR: {
const struct nk_command_scissor *s =(const struct nk_command_scissor*)cmd;
nk_xsurf_scissor(surf, s->x, s->y, s->w, s->h);
} break;
case NK_COMMAND_LINE: {
const struct nk_command_line *l = (const struct nk_command_line *)cmd;
nk_xsurf_stroke_line(surf, l->begin.x, l->begin.y, l->end.x,
l->end.y, l->line_thickness, l->color);
} break;
case NK_COMMAND_RECT: {
const struct nk_command_rect *r = (const struct nk_command_rect *)cmd;
nk_xsurf_stroke_rect(surf, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->line_thickness, r->color);
} break;
case NK_COMMAND_RECT_FILLED: {
const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled *)cmd;
nk_xsurf_fill_rect(surf, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->color);
} break;
case NK_COMMAND_CIRCLE: {
const struct nk_command_circle *c = (const struct nk_command_circle *)cmd;
nk_xsurf_stroke_circle(surf, c->x, c->y, c->w, c->h, c->line_thickness, c->color);
} break;
case NK_COMMAND_CIRCLE_FILLED: {
const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd;
nk_xsurf_fill_circle(surf, c->x, c->y, c->w, c->h, c->color);
} break;
case NK_COMMAND_TRIANGLE: {
const struct nk_command_triangle*t = (const struct nk_command_triangle*)cmd;
nk_xsurf_stroke_triangle(surf, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->line_thickness, t->color);
} break;
case NK_COMMAND_TRIANGLE_FILLED: {
const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled *)cmd;
nk_xsurf_fill_triangle(surf, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->color);
} break;
case NK_COMMAND_POLYGON: {
const struct nk_command_polygon *p =(const struct nk_command_polygon*)cmd;
nk_xsurf_stroke_polygon(surf, p->points, p->point_count, p->line_thickness,p->color);
} break;
case NK_COMMAND_POLYGON_FILLED: {
const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled *)cmd;
nk_xsurf_fill_polygon(surf, p->points, p->point_count, p->color);
} break;
case NK_COMMAND_POLYLINE: {
const struct nk_command_polyline *p = (const struct nk_command_polyline *)cmd;
nk_xsurf_stroke_polyline(surf, p->points, p->point_count, p->line_thickness, p->color);
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text *t = (const struct nk_command_text*)cmd;
nk_xsurf_draw_text(surf, t->x, t->y, t->w, t->h,
(const char*)t->string, t->length,
(XFont*)t->font->userdata.ptr,
t->background, t->foreground);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;
nk_xsurf_stroke_curve(surf, q->begin, q->ctrl[0], q->ctrl[1],
q->end, 22, q->line_thickness, q->color);
} break;
case NK_COMMAND_RECT_MULTI_COLOR:
case NK_COMMAND_IMAGE:
case NK_COMMAND_ARC:
case NK_COMMAND_ARC_FILLED:
default: break;
}
}
nk_clear(ctx);
nk_xsurf_blit(screen, surf, surf->w, surf->h);
}
#endif

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deps/nuklear/demo/x11_opengl2/main.c vendored
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@ -1,320 +0,0 @@
/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#include <GL/glx.h>
#include <GL/glxext.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_XLIB_GL2_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_xlib_gl2.h"
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_ELEMENT_BUFFER 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
struct XWindow {
Display *dpy;
Window win;
XVisualInfo *vis;
Colormap cmap;
XSetWindowAttributes swa;
XWindowAttributes attr;
GLXFBConfig fbc;
int width, height;
};
static int gl_err = FALSE;
static int gl_error_handler(Display *dpy, XErrorEvent *ev)
{UNUSED((dpy, ev)); gl_err = TRUE;return 0;}
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static int
has_extension(const char *string, const char *ext)
{
const char *start, *where, *term;
where = strchr(ext, ' ');
if (where || *ext == '\0')
return FALSE;
for (start = string;;) {
where = strstr((const char*)start, ext);
if (!where) break;
term = where + strlen(ext);
if (where == start || *(where - 1) == ' ') {
if (*term == ' ' || *term == '\0')
return TRUE;
}
start = term;
}
return FALSE;
}
int main(int argc, char **argv)
{
/* Platform */
int running = 1;
struct XWindow win;
GLXContext glContext;
struct nk_context *ctx;
struct nk_color background;
memset(&win, 0, sizeof(win));
win.dpy = XOpenDisplay(NULL);
if (!win.dpy) die("Failed to open X display\n");
{
/* check glx version */
int glx_major, glx_minor;
if (!glXQueryVersion(win.dpy, &glx_major, &glx_minor))
die("[X11]: Error: Failed to query OpenGL version\n");
if ((glx_major == 1 && glx_minor < 3) || (glx_major < 1))
die("[X11]: Error: Invalid GLX version!\n");
}
{
/* find and pick matching framebuffer visual */
int fb_count;
static GLint attr[] = {
GLX_X_RENDERABLE, True,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DEPTH_SIZE, 24,
GLX_STENCIL_SIZE, 8,
GLX_DOUBLEBUFFER, True,
None
};
GLXFBConfig *fbc;
fbc = glXChooseFBConfig(win.dpy, DefaultScreen(win.dpy), attr, &fb_count);
if (!fbc) die("[X11]: Error: failed to retrieve framebuffer configuration\n");
{
/* pick framebuffer with most samples per pixel */
int i;
int fb_best = -1, best_num_samples = -1;
for (i = 0; i < fb_count; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(win.dpy, fbc[i]);
if (vi) {
int sample_buffer, samples;
glXGetFBConfigAttrib(win.dpy, fbc[i], GLX_SAMPLE_BUFFERS, &sample_buffer);
glXGetFBConfigAttrib(win.dpy, fbc[i], GLX_SAMPLES, &samples);
if ((fb_best < 0) || (sample_buffer && samples > best_num_samples))
fb_best = i; best_num_samples = samples;
}
}
win.fbc = fbc[fb_best];
XFree(fbc);
win.vis = glXGetVisualFromFBConfig(win.dpy, win.fbc);
}
}
{
/* create window */
win.cmap = XCreateColormap(win.dpy, RootWindow(win.dpy, win.vis->screen), win.vis->visual, AllocNone);
win.swa.colormap = win.cmap;
win.swa.background_pixmap = None;
win.swa.border_pixel = 0;
win.swa.event_mask =
ExposureMask | KeyPressMask | KeyReleaseMask |
ButtonPress | ButtonReleaseMask| ButtonMotionMask |
Button1MotionMask | Button3MotionMask | Button4MotionMask | Button5MotionMask|
PointerMotionMask| StructureNotifyMask;
win.win = XCreateWindow(win.dpy, RootWindow(win.dpy, win.vis->screen), 0, 0,
WINDOW_WIDTH, WINDOW_HEIGHT, 0, win.vis->depth, InputOutput,
win.vis->visual, CWBorderPixel|CWColormap|CWEventMask, &win.swa);
if (!win.win) die("[X11]: Failed to create window\n");
XFree(win.vis);
XStoreName(win.dpy, win.win, "Demo");
XMapWindow(win.dpy, win.win);
}
{
/* create opengl context */
typedef GLXContext(*glxCreateContext)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
int(*old_handler)(Display*, XErrorEvent*) = XSetErrorHandler(gl_error_handler);
const char *extensions_str = glXQueryExtensionsString(win.dpy, DefaultScreen(win.dpy));
glxCreateContext create_context = (glxCreateContext)
glXGetProcAddressARB((const GLubyte*)"glXCreateContextAttribsARB");
gl_err = FALSE;
if (!has_extension(extensions_str, "GLX_ARB_create_context") || !create_context) {
fprintf(stdout, "[X11]: glXCreateContextAttribARB() not found...\n");
fprintf(stdout, "[X11]: ... using old-style GLX context\n");
glContext = glXCreateNewContext(win.dpy, win.fbc, GLX_RGBA_TYPE, 0, True);
} else {
GLint attr[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
None
};
glContext = create_context(win.dpy, win.fbc, 0, True, attr);
XSync(win.dpy, False);
if (gl_err || !glContext) {
/* Could not create GL 3.0 context. Fallback to old 2.x context.
* If a version below 3.0 is requested, implementations will
* return the newest context version compatible with OpenGL
* version less than version 3.0.*/
attr[1] = 1; attr[3] = 0;
gl_err = FALSE;
fprintf(stdout, "[X11] Failed to create OpenGL 3.0 context\n");
fprintf(stdout, "[X11] ... using old-style GLX context!\n");
glContext = create_context(win.dpy, win.fbc, 0, True, attr);
}
}
XSync(win.dpy, False);
XSetErrorHandler(old_handler);
if (gl_err || !glContext)
die("[X11]: Failed to create an OpenGL context\n");
glXMakeCurrent(win.dpy, win.win, glContext);
}
ctx = nk_x11_init(win.dpy, win.win);
/* Load Fonts: if none of these are loaded a default font will be used */
/* Load Cursor: if you uncomment cursor loading please hide the cursor */
{struct nk_font_atlas *atlas;
nk_x11_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_x11_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &droid->handle);*/}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (running)
{
/* Input */
XEvent evt;
nk_input_begin(ctx);
while (XCheckWindowEvent(win.dpy, win.win, win.swa.event_mask, &evt)){
if (XFilterEvent(&evt, win.win)) continue;
nk_x11_handle_event(&evt);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
XGetWindowAttributes(win.dpy, win.win, &win.attr);
glViewport(0, 0, win.width, win.height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_x11_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
nk_x11_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
glXSwapBuffers(win.dpy, win.win);}
}
nk_x11_shutdown();
glXMakeCurrent(win.dpy, 0, 0);
glXDestroyContext(win.dpy, glContext);
XUnmapWindow(win.dpy, win.win);
XFreeColormap(win.dpy, win.cmap);
XDestroyWindow(win.dpy, win.win);
XCloseDisplay(win.dpy);
return 0;
}

357
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@ -1,357 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_XLIB_GL3_H_
#define NK_XLIB_GL3_H_
#include <X11/Xlib.h>
NK_API struct nk_context* nk_x11_init(Display *dpy, Window win);
NK_API void nk_x11_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_x11_font_stash_end(void);
NK_API int nk_x11_handle_event(XEvent *evt);
NK_API void nk_x11_render(enum nk_anti_aliasing, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_x11_shutdown(void);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_XLIB_GL2_IMPLEMENTATION
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <X11/Xlocale.h>
#include <GL/gl.h>
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
struct nk_x11_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct nk_x11_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint font_tex;
};
static struct nk_x11 {
struct nk_x11_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
Cursor cursor;
Display *dpy;
Window win;
} x11;
NK_INTERN void
nk_x11_device_upload_atlas(const void *image, int width, int height)
{
struct nk_x11_device *dev = &x11.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_x11_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
/* setup global state */
struct nk_x11_device *dev = &x11.ogl;
int width, height;
XWindowAttributes attr;
XGetWindowAttributes(x11.dpy, x11.win, &attr);
width = attr.width;
height = attr.height;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* setup viewport/project */
glViewport(0,0,(GLsizei)width,(GLsizei)height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, width, height, 0.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
{
GLsizei vs = sizeof(struct nk_x11_vertex);
size_t vp = offsetof(struct nk_x11_vertex, position);
size_t vt = offsetof(struct nk_x11_vertex, uv);
size_t vc = offsetof(struct nk_x11_vertex, col);
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
const nk_draw_index *offset = NULL;
struct nk_buffer vbuf, ebuf;
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_x11_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_x11_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_x11_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_x11_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_x11_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* convert shapes into vertexes */
nk_buffer_init_default(&vbuf);
nk_buffer_init_default(&ebuf);
nk_convert(&x11.ctx, &dev->cmds, &vbuf, &ebuf, &config);
/* setup vertex buffer pointer */
{const void *vertices = nk_buffer_memory_const(&vbuf);
glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp));
glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt));
glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));}
/* iterate over and execute each draw command */
offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
nk_draw_foreach(cmd, &x11.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h))),
(GLint)(cmd->clip_rect.w),
(GLint)(cmd->clip_rect.h));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&x11.ctx);
nk_buffer_free(&vbuf);
nk_buffer_free(&ebuf);
}
/* default OpenGL state */
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
}
NK_API void
nk_x11_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&x11.atlas);
nk_font_atlas_begin(&x11.atlas);
*atlas = &x11.atlas;
}
NK_API void
nk_x11_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&x11.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_x11_device_upload_atlas(image, w, h);
nk_font_atlas_end(&x11.atlas, nk_handle_id((int)x11.ogl.font_tex), &x11.ogl.null);
if (x11.atlas.default_font)
nk_style_set_font(&x11.ctx, &x11.atlas.default_font->handle);
}
NK_API int
nk_x11_handle_event(XEvent *evt)
{
struct nk_context *ctx = &x11.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
XDefineCursor(x11.dpy, x11.win, x11.cursor);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
XWarpPointer(x11.dpy, None, x11.win, 0, 0, 0, 0,
(int)ctx->input.mouse.pos.x, (int)ctx->input.mouse.pos.y);
XUndefineCursor(x11.dpy, x11.win);
ctx->input.mouse.ungrab = 0;
}
if (evt->type == KeyPress || evt->type == KeyRelease)
{
/* Key handler */
int ret, down = (evt->type == KeyPress);
KeySym *code = XGetKeyboardMapping(x11.dpy, (KeyCode)evt->xkey.keycode, 1, &ret);
if (*code == XK_Shift_L || *code == XK_Shift_R) nk_input_key(ctx, NK_KEY_SHIFT, down);
else if (*code == XK_Delete) nk_input_key(ctx, NK_KEY_DEL, down);
else if (*code == XK_Return) nk_input_key(ctx, NK_KEY_ENTER, down);
else if (*code == XK_Tab) nk_input_key(ctx, NK_KEY_TAB, down);
else if (*code == XK_Left) nk_input_key(ctx, NK_KEY_LEFT, down);
else if (*code == XK_Right) nk_input_key(ctx, NK_KEY_RIGHT, down);
else if (*code == XK_Up) nk_input_key(ctx, NK_KEY_UP, down);
else if (*code == XK_Down) nk_input_key(ctx, NK_KEY_DOWN, down);
else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
else if (*code == XK_space && !down) nk_input_char(ctx, ' ');
else if (*code == XK_Page_Up) nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
else if (*code == XK_Home) {
nk_input_key(ctx, NK_KEY_TEXT_START, down);
nk_input_key(ctx, NK_KEY_SCROLL_START, down);
} else if (*code == XK_End) {
nk_input_key(ctx, NK_KEY_TEXT_END, down);
nk_input_key(ctx, NK_KEY_SCROLL_END, down);
} else {
if (*code == 'c' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_COPY, down);
else if (*code == 'v' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_PASTE, down);
else if (*code == 'x' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_CUT, down);
else if (*code == 'z' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_UNDO, down);
else if (*code == 'r' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_REDO, down);
else if (*code == XK_Left && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
else if (*code == XK_Right && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else if (*code == 'b' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down);
else if (*code == 'e' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down);
else {
if (*code == 'i')
nk_input_key(ctx, NK_KEY_TEXT_INSERT_MODE, down);
else if (*code == 'r')
nk_input_key(ctx, NK_KEY_TEXT_REPLACE_MODE, down);
if (down) {
char buf[32];
KeySym keysym = 0;
if (XLookupString((XKeyEvent*)evt, buf, 32, &keysym, NULL) != NoSymbol)
nk_input_glyph(ctx, buf);
}
}
}
XFree(code);
return 1;
} else if (evt->type == ButtonPress || evt->type == ButtonRelease) {
/* Button handler */
int down = (evt->type == ButtonPress);
const int x = evt->xbutton.x, y = evt->xbutton.y;
if (evt->xbutton.button == Button1)
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
if (evt->xbutton.button == Button2)
nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down);
else if (evt->xbutton.button == Button3)
nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down);
else if (evt->xbutton.button == Button4)
nk_input_scroll(ctx, 1.0f);
else if (evt->xbutton.button == Button5)
nk_input_scroll(ctx, -1.0f);
else return 0;
return 1;
} else if (evt->type == MotionNotify) {
/* Mouse motion handler */
const int x = evt->xmotion.x, y = evt->xmotion.y;
nk_input_motion(ctx, x, y);
if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
XWarpPointer(x11.dpy, None, x11.win, 0, 0, 0, 0, (int)ctx->input.mouse.pos.x, (int)ctx->input.mouse.pos.y);
}
return 1;
} else if (evt->type == KeymapNotify) {
XRefreshKeyboardMapping(&evt->xmapping);
return 1;
}
return 0;
}
NK_API struct nk_context*
nk_x11_init(Display *dpy, Window win)
{
x11.dpy = dpy;
x11.win = win;
if (!setlocale(LC_ALL,"")) return 0;
if (!XSupportsLocale()) return 0;
if (!XSetLocaleModifiers("@im=none")) return 0;
/* create invisible cursor */
{static XColor dummy; char data[1] = {0};
Pixmap blank = XCreateBitmapFromData(dpy, win, data, 1, 1);
if (blank == None) return 0;
x11.cursor = XCreatePixmapCursor(dpy, blank, blank, &dummy, &dummy, 0, 0);
XFreePixmap(dpy, blank);}
nk_buffer_init_default(&x11.ogl.cmds);
nk_init_default(&x11.ctx, 0);
return &x11.ctx;
}
NK_API void
nk_x11_shutdown(void)
{
struct nk_x11_device *dev = &x11.ogl;
nk_font_atlas_clear(&x11.atlas);
nk_free(&x11.ctx);
glDeleteTextures(1, &dev->font_tex);
nk_buffer_free(&dev->cmds);
XFreeCursor(x11.dpy, x11.cursor);
memset(&x11, 0, sizeof(x11));
}
#endif

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/* nuklear - v1.17 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#define NK_XLIB_GL3_IMPLEMENTATION
#define NK_XLIB_LOAD_OPENGL_EXTENSIONS
#include "../../nuklear.h"
#include "nuklear_xlib_gl3.h"
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_BUFFER 512 * 1024
#define MAX_ELEMENT_BUFFER 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the include
* and the corresponding function. */
/*#include "../style.c"*/
/*#include "../calculator.c"*/
/*#include "../overview.c"*/
/*#include "../node_editor.c"*/
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
struct XWindow {
Display *dpy;
Window win;
XVisualInfo *vis;
Colormap cmap;
XSetWindowAttributes swa;
XWindowAttributes attr;
GLXFBConfig fbc;
int width, height;
};
static int gl_err = FALSE;
static int gl_error_handler(Display *dpy, XErrorEvent *ev)
{UNUSED((dpy, ev)); gl_err = TRUE;return 0;}
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static int
has_extension(const char *string, const char *ext)
{
const char *start, *where, *term;
where = strchr(ext, ' ');
if (where || *ext == '\0')
return FALSE;
for (start = string;;) {
where = strstr((const char*)start, ext);
if (!where) break;
term = where + strlen(ext);
if (where == start || *(where - 1) == ' ') {
if (*term == ' ' || *term == '\0')
return TRUE;
}
start = term;
}
return FALSE;
}
int main(int argc, char **argv)
{
/* Platform */
int running = 1;
struct XWindow win;
GLXContext glContext;
struct nk_context *ctx;
struct nk_color background;
memset(&win, 0, sizeof(win));
win.dpy = XOpenDisplay(NULL);
if (!win.dpy) die("Failed to open X display\n");
{
/* check glx version */
int glx_major, glx_minor;
if (!glXQueryVersion(win.dpy, &glx_major, &glx_minor))
die("[X11]: Error: Failed to query OpenGL version\n");
if ((glx_major == 1 && glx_minor < 3) || (glx_major < 1))
die("[X11]: Error: Invalid GLX version!\n");
}
{
/* find and pick matching framebuffer visual */
int fb_count;
static GLint attr[] = {
GLX_X_RENDERABLE, True,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DEPTH_SIZE, 24,
GLX_STENCIL_SIZE, 8,
GLX_DOUBLEBUFFER, True,
None
};
GLXFBConfig *fbc;
fbc = glXChooseFBConfig(win.dpy, DefaultScreen(win.dpy), attr, &fb_count);
if (!fbc) die("[X11]: Error: failed to retrieve framebuffer configuration\n");
{
/* pick framebuffer with most samples per pixel */
int i;
int fb_best = -1, best_num_samples = -1;
for (i = 0; i < fb_count; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(win.dpy, fbc[i]);
if (vi) {
int sample_buffer, samples;
glXGetFBConfigAttrib(win.dpy, fbc[i], GLX_SAMPLE_BUFFERS, &sample_buffer);
glXGetFBConfigAttrib(win.dpy, fbc[i], GLX_SAMPLES, &samples);
if ((fb_best < 0) || (sample_buffer && samples > best_num_samples))
fb_best = i; best_num_samples = samples;
}
}
win.fbc = fbc[fb_best];
XFree(fbc);
win.vis = glXGetVisualFromFBConfig(win.dpy, win.fbc);
}
}
{
/* create window */
win.cmap = XCreateColormap(win.dpy, RootWindow(win.dpy, win.vis->screen), win.vis->visual, AllocNone);
win.swa.colormap = win.cmap;
win.swa.background_pixmap = None;
win.swa.border_pixel = 0;
win.swa.event_mask =
ExposureMask | KeyPressMask | KeyReleaseMask |
ButtonPress | ButtonReleaseMask| ButtonMotionMask |
Button1MotionMask | Button3MotionMask | Button4MotionMask | Button5MotionMask|
PointerMotionMask| StructureNotifyMask;
win.win = XCreateWindow(win.dpy, RootWindow(win.dpy, win.vis->screen), 0, 0,
WINDOW_WIDTH, WINDOW_HEIGHT, 0, win.vis->depth, InputOutput,
win.vis->visual, CWBorderPixel|CWColormap|CWEventMask, &win.swa);
if (!win.win) die("[X11]: Failed to create window\n");
XFree(win.vis);
XStoreName(win.dpy, win.win, "Demo");
XMapWindow(win.dpy, win.win);
}
{
/* create opengl context */
typedef GLXContext(*glxCreateContext)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
int(*old_handler)(Display*, XErrorEvent*) = XSetErrorHandler(gl_error_handler);
const char *extensions_str = glXQueryExtensionsString(win.dpy, DefaultScreen(win.dpy));
glxCreateContext create_context = (glxCreateContext)
glXGetProcAddressARB((const GLubyte*)"glXCreateContextAttribsARB");
gl_err = FALSE;
if (!has_extension(extensions_str, "GLX_ARB_create_context") || !create_context) {
fprintf(stdout, "[X11]: glXCreateContextAttribARB() not found...\n");
fprintf(stdout, "[X11]: ... using old-style GLX context\n");
glContext = glXCreateNewContext(win.dpy, win.fbc, GLX_RGBA_TYPE, 0, True);
} else {
GLint attr[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
None
};
glContext = create_context(win.dpy, win.fbc, 0, True, attr);
XSync(win.dpy, False);
if (gl_err || !glContext) {
/* Could not create GL 3.0 context. Fallback to old 2.x context.
* If a version below 3.0 is requested, implementations will
* return the newest context version compatible with OpenGL
* version less than version 3.0.*/
attr[1] = 1; attr[3] = 0;
gl_err = FALSE;
fprintf(stdout, "[X11] Failed to create OpenGL 3.0 context\n");
fprintf(stdout, "[X11] ... using old-style GLX context!\n");
glContext = create_context(win.dpy, win.fbc, 0, True, attr);
}
}
XSync(win.dpy, False);
XSetErrorHandler(old_handler);
if (gl_err || !glContext)
die("[X11]: Failed to create an OpenGL context\n");
glXMakeCurrent(win.dpy, win.win, glContext);
}
ctx = nk_x11_init(win.dpy, win.win);
/* Load Fonts: if none of these are loaded a default font will be used */
{struct nk_font_atlas *atlas;
nk_x11_font_stash_begin(&atlas);
/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/
/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
nk_x11_font_stash_end();
/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
/*nk_style_set_font(ctx, &droid->handle);*/}
/* style.c */
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
background = nk_rgb(28,48,62);
while (running)
{
/* Input */
XEvent evt;
nk_input_begin(ctx);
while (XCheckWindowEvent(win.dpy, win.win, win.swa.event_mask, &evt)){
if (XFilterEvent(&evt, win.win)) continue;
nk_x11_handle_event(&evt);
}
nk_input_end(ctx);
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, "background:", NK_TEXT_LEFT);
nk_layout_row_dynamic(ctx, 25, 1);
if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
nk_layout_row_dynamic(ctx, 120, 1);
background = nk_color_picker(ctx, background, NK_RGBA);
nk_layout_row_dynamic(ctx, 25, 1);
background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
nk_combo_end(ctx);
}
}
nk_end(ctx);
if (nk_window_is_closed(ctx, "Demo")) break;
/* -------------- EXAMPLES ---------------- */
/*calculator(ctx);*/
/*overview(ctx);*/
/*node_editor(ctx);*/
/* ----------------------------------------- */
/* Draw */
{float bg[4];
nk_color_fv(bg, background);
XGetWindowAttributes(win.dpy, win.win, &win.attr);
glViewport(0, 0, win.width, win.height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(bg[0], bg[1], bg[2], bg[3]);
/* IMPORTANT: `nk_x11_render` modifies some global OpenGL state
* with blending, scissor, face culling, depth test and viewport and
* defaults everything back into a default state.
* Make sure to either a.) save and restore or b.) reset your own state after
* rendering the UI. */
nk_x11_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
glXSwapBuffers(win.dpy, win.win);}
}
nk_x11_shutdown();
glXMakeCurrent(win.dpy, 0, 0);
glXDestroyContext(win.dpy, glContext);
XUnmapWindow(win.dpy, win.win);
XFreeColormap(win.dpy, win.cmap);
XDestroyWindow(win.dpy, win.win);
XCloseDisplay(win.dpy);
return 0;
}

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deps/nuklear/demo/x11_opengl3/nuklear_xlib_gl3.h vendored
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@ -1,725 +0,0 @@
/*
* Nuklear - v1.17 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_XLIB_GL3_H_
#define NK_XLIB_GL3_H_
#include <X11/Xlib.h>
NK_API struct nk_context* nk_x11_init(Display *dpy, Window win);
NK_API void nk_x11_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_x11_font_stash_end(void);
NK_API int nk_x11_handle_event(XEvent *evt);
NK_API void nk_x11_render(enum nk_anti_aliasing, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_x11_shutdown(void);
NK_API int nk_x11_device_create(void);
NK_API void nk_x11_device_destroy(void);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_XLIB_GL3_IMPLEMENTATION
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
#include <X11/Xlocale.h>
#include <GL/gl.h>
#include <GL/glx.h>
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifdef NK_XLIB_LOAD_OPENGL_EXTENSIONS
#include <GL/glxext.h>
/* GL_ARB_vertex_buffer_object */
typedef void(*nkglGenBuffers)(GLsizei, GLuint*);
typedef void(*nkglBindBuffer)(GLenum, GLuint);
typedef void(*nkglBufferData)(GLenum, GLsizeiptr, const GLvoid*, GLenum);
typedef void(*nkglBufferSubData)(GLenum, GLintptr, GLsizeiptr, const GLvoid*);
typedef void*(*nkglMapBuffer)(GLenum, GLenum);
typedef GLboolean(*nkglUnmapBuffer)(GLenum);
typedef void(*nkglDeleteBuffers)(GLsizei, GLuint*);
/* GL_ARB_vertex_array_object */
typedef void (*nkglGenVertexArrays)(GLsizei, GLuint*);
typedef void (*nkglBindVertexArray)(GLuint);
typedef void (*nkglDeleteVertexArrays)(GLsizei, const GLuint*);
/* GL_ARB_vertex_program / GL_ARB_fragment_program */
typedef void(*nkglVertexAttribPointer)(GLuint, GLint, GLenum, GLboolean, GLsizei, const GLvoid*);
typedef void(*nkglEnableVertexAttribArray)(GLuint);
typedef void(*nkglDisableVertexAttribArray)(GLuint);
/* GL_ARB_framebuffer_object */
typedef void(*nkglGenerateMipmap)(GLenum target);
/* GLSL/OpenGL 2.0 core */
typedef GLuint(*nkglCreateShader)(GLenum);
typedef void(*nkglShaderSource)(GLuint, GLsizei, const GLchar**, const GLint*);
typedef void(*nkglCompileShader)(GLuint);
typedef void(*nkglGetShaderiv)(GLuint, GLenum, GLint*);
typedef void(*nkglGetShaderInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
typedef void(*nkglDeleteShader)(GLuint);
typedef GLuint(*nkglCreateProgram)(void);
typedef void(*nkglAttachShader)(GLuint, GLuint);
typedef void(*nkglDetachShader)(GLuint, GLuint);
typedef void(*nkglLinkProgram)(GLuint);
typedef void(*nkglUseProgram)(GLuint);
typedef void(*nkglGetProgramiv)(GLuint, GLenum, GLint*);
typedef void(*nkglGetProgramInfoLog)(GLuint, GLsizei, GLsizei*, GLchar*);
typedef void(*nkglDeleteProgram)(GLuint);
typedef GLint(*nkglGetUniformLocation)(GLuint, const GLchar*);
typedef GLint(*nkglGetAttribLocation)(GLuint, const GLchar*);
typedef void(*nkglUniform1i)(GLint, GLint);
typedef void(*nkglUniform1f)(GLint, GLfloat);
typedef void(*nkglUniformMatrix3fv)(GLint, GLsizei, GLboolean, const GLfloat*);
typedef void(*nkglUniformMatrix4fv)(GLint, GLsizei, GLboolean, const GLfloat*);
static nkglGenBuffers glGenBuffers;
static nkglBindBuffer glBindBuffer;
static nkglBufferData glBufferData;
static nkglBufferSubData glBufferSubData;
static nkglMapBuffer glMapBuffer;
static nkglUnmapBuffer glUnmapBuffer;
static nkglDeleteBuffers glDeleteBuffers;
static nkglGenVertexArrays glGenVertexArrays;
static nkglBindVertexArray glBindVertexArray;
static nkglDeleteVertexArrays glDeleteVertexArrays;
static nkglVertexAttribPointer glVertexAttribPointer;
static nkglEnableVertexAttribArray glEnableVertexAttribArray;
static nkglDisableVertexAttribArray glDisableVertexAttribArray;
static nkglGenerateMipmap glGenerateMipmap;
static nkglCreateShader glCreateShader;
static nkglShaderSource glShaderSource;
static nkglCompileShader glCompileShader;
static nkglGetShaderiv glGetShaderiv;
static nkglGetShaderInfoLog glGetShaderInfoLog;
static nkglDeleteShader glDeleteShader;
static nkglCreateProgram glCreateProgram;
static nkglAttachShader glAttachShader;
static nkglDetachShader glDetachShader;
static nkglLinkProgram glLinkProgram;
static nkglUseProgram glUseProgram;
static nkglGetProgramiv glGetProgramiv;
static nkglGetProgramInfoLog glGetProgramInfoLog;
static nkglDeleteProgram glDeleteProgram;
static nkglGetUniformLocation glGetUniformLocation;
static nkglGetAttribLocation glGetAttribLocation;
static nkglUniform1i glUniform1i;
static nkglUniform1f glUniform1f;
static nkglUniformMatrix3fv glUniformMatrix3fv;
static nkglUniformMatrix4fv glUniformMatrix4fv;
enum graphics_card_vendors {
VENDOR_UNKNOWN,
VENDOR_NVIDIA,
VENDOR_AMD,
VENDOR_INTEL
};
struct opengl_info {
/* info */
const char *vendor_str;
const char *version_str;
const char *extensions_str;
const char *renderer_str;
const char *glsl_version_str;
enum graphics_card_vendors vendor;
/* version */
float version;
int major_version;
int minor_version;
/* extensions */
int glsl_available;
int vertex_buffer_obj_available;
int vertex_array_obj_available;
int map_buffer_range_available;
int fragment_program_available;
int frame_buffer_object_available;
};
#endif
struct nk_x11_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct nk_x11_device {
#ifdef NK_XLIB_LOAD_OPENGL_EXTENSIONS
struct opengl_info info;
#endif
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
static struct nk_x11 {
struct nk_x11_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
Cursor cursor;
Display *dpy;
Window win;
} x11;
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
#ifdef NK_XLIB_LOAD_OPENGL_EXTENSIONS
#include <GL/glx.h>
NK_INTERN int
nk_x11_stricmpn(const char *a, const char *b, int len)
{
int i = 0;
for (i = 0; i < len && a[i] && b[i]; ++i)
if (a[i] != b[i]) return 1;
if (i != len) return 1;
return 0;
}
NK_INTERN int
nk_x11_check_extension(struct opengl_info *GL, const char *ext)
{
const char *start, *where, *term;
where = strchr(ext, ' ');
if (where || *ext == '\0')
return FALSE;
for (start = GL->extensions_str;;) {
where = strstr((const char*)start, ext);
if (!where) break;
term = where + strlen(ext);
if (where == start || *(where - 1) == ' ') {
if (*term == ' ' || *term == '\0')
return TRUE;
}
start = term;
}
return FALSE;
}
#define GL_EXT(name) (nk##name)nk_gl_ext(#name)
NK_INTERN __GLXextFuncPtr
nk_gl_ext(const char *name)
{
__GLXextFuncPtr func;
func = glXGetProcAddress((const GLubyte*)name);
if (!func) {
fprintf(stdout, "[GL]: failed to load extension: %s", name);
return NULL;
}
return func;
}
NK_INTERN int
nk_load_opengl(struct opengl_info *gl)
{
int failed = FALSE;
gl->version_str = (const char*)glGetString(GL_VERSION);
glGetIntegerv(GL_MAJOR_VERSION, &gl->major_version);
glGetIntegerv(GL_MINOR_VERSION, &gl->minor_version);
if (gl->major_version < 2) {
fprintf(stderr, "[GL]: Graphics card does not fullfill minimum OpenGL 2.0 support\n");
return 0;
}
gl->version = (float)gl->major_version + (float)gl->minor_version * 0.1f;
gl->renderer_str = (const char*)glGetString(GL_RENDERER);
gl->extensions_str = (const char*)glGetString(GL_EXTENSIONS);
gl->glsl_version_str = (const char*)glGetString(GL_SHADING_LANGUAGE_VERSION);
gl->vendor_str = (const char*)glGetString(GL_VENDOR);
if (!nk_x11_stricmpn(gl->vendor_str, "ATI", 4) ||
!nk_x11_stricmpn(gl->vendor_str, "AMD", 4))
gl->vendor = VENDOR_AMD;
else if (!nk_x11_stricmpn(gl->vendor_str, "NVIDIA", 6))
gl->vendor = VENDOR_NVIDIA;
else if (!nk_x11_stricmpn(gl->vendor_str, "Intel", 5))
gl->vendor = VENDOR_INTEL;
else gl->vendor = VENDOR_UNKNOWN;
/* Extensions */
gl->glsl_available = (gl->version >= 2.0f);
if (gl->glsl_available) {
/* GLSL core in OpenGL > 2 */
glCreateShader = GL_EXT(glCreateShader);
glShaderSource = GL_EXT(glShaderSource);
glCompileShader = GL_EXT(glCompileShader);
glGetShaderiv = GL_EXT(glGetShaderiv);
glGetShaderInfoLog = GL_EXT(glGetShaderInfoLog);
glDeleteShader = GL_EXT(glDeleteShader);
glCreateProgram = GL_EXT(glCreateProgram);
glAttachShader = GL_EXT(glAttachShader);
glDetachShader = GL_EXT(glDetachShader);
glLinkProgram = GL_EXT(glLinkProgram);
glUseProgram = GL_EXT(glUseProgram);
glGetProgramiv = GL_EXT(glGetProgramiv);
glGetProgramInfoLog = GL_EXT(glGetProgramInfoLog);
glDeleteProgram = GL_EXT(glDeleteProgram);
glGetUniformLocation = GL_EXT(glGetUniformLocation);
glGetAttribLocation = GL_EXT(glGetAttribLocation);
glUniform1i = GL_EXT(glUniform1i);
glUniform1f = GL_EXT(glUniform1f);
glUniformMatrix3fv = GL_EXT(glUniformMatrix3fv);
glUniformMatrix4fv = GL_EXT(glUniformMatrix4fv);
}
gl->vertex_buffer_obj_available = nk_x11_check_extension(gl, "GL_ARB_vertex_buffer_object");
if (gl->vertex_buffer_obj_available) {
/* GL_ARB_vertex_buffer_object */
glGenBuffers = GL_EXT(glGenBuffers);
glBindBuffer = GL_EXT(glBindBuffer);
glBufferData = GL_EXT(glBufferData);
glBufferSubData = GL_EXT(glBufferSubData);
glMapBuffer = GL_EXT(glMapBuffer);
glUnmapBuffer = GL_EXT(glUnmapBuffer);
glDeleteBuffers = GL_EXT(glDeleteBuffers);
}
gl->fragment_program_available = nk_x11_check_extension(gl, "GL_ARB_fragment_program");
if (gl->fragment_program_available) {
/* GL_ARB_vertex_program / GL_ARB_fragment_program */
glVertexAttribPointer = GL_EXT(glVertexAttribPointer);
glEnableVertexAttribArray = GL_EXT(glEnableVertexAttribArray);
glDisableVertexAttribArray = GL_EXT(glDisableVertexAttribArray);
}
gl->vertex_array_obj_available = nk_x11_check_extension(gl, "GL_ARB_vertex_array_object");
if (gl->vertex_array_obj_available) {
/* GL_ARB_vertex_array_object */
glGenVertexArrays = GL_EXT(glGenVertexArrays);
glBindVertexArray = GL_EXT(glBindVertexArray);
glDeleteVertexArrays = GL_EXT(glDeleteVertexArrays);
}
gl->frame_buffer_object_available = nk_x11_check_extension(gl, "GL_ARB_framebuffer_object");
if (gl->frame_buffer_object_available) {
/* GL_ARB_framebuffer_object */
glGenerateMipmap = GL_EXT(glGenerateMipmap);
}
if (!gl->vertex_buffer_obj_available) {
fprintf(stdout, "[GL] Error: GL_ARB_vertex_buffer_object is not available!\n");
failed = TRUE;
}
if (!gl->fragment_program_available) {
fprintf(stdout, "[GL] Error: GL_ARB_fragment_program is not available!\n");
failed = TRUE;
}
if (!gl->vertex_array_obj_available) {
fprintf(stdout, "[GL] Error: GL_ARB_vertex_array_object is not available!\n");
failed = TRUE;
}
if (!gl->frame_buffer_object_available) {
fprintf(stdout, "[GL] Error: GL_ARB_framebuffer_object is not available!\n");
failed = TRUE;
}
return !failed;
}
#endif
NK_API int
nk_x11_device_create(void)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
struct nk_x11_device *dev = &x11.ogl;
#ifdef NK_XLIB_LOAD_OPENGL_EXTENSIONS
if (!nk_load_opengl(&dev->info)) return 0;
#endif
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_x11_vertex);
size_t vp = offsetof(struct nk_x11_vertex, position);
size_t vt = offsetof(struct nk_x11_vertex, uv);
size_t vc = offsetof(struct nk_x11_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
return 1;
}
NK_INTERN void
nk_x11_device_upload_atlas(const void *image, int width, int height)
{
struct nk_x11_device *dev = &x11.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_x11_device_destroy(void)
{
struct nk_x11_device *dev = &x11.ogl;
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
NK_API void
nk_x11_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
int width, height;
XWindowAttributes attr;
struct nk_x11_device *dev = &x11.ogl;
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
XGetWindowAttributes(x11.dpy, x11.win, &attr);
width = attr.width;
height = attr.height;
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
glViewport(0,0,(GLsizei)width,(GLsizei)height);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, max_vertex_buffer, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, max_element_buffer, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_x11_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_x11_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_x11_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_x11_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_x11_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, (size_t)max_vertex_buffer);
nk_buffer_init_fixed(&ebuf, elements, (size_t)max_element_buffer);
nk_convert(&x11.ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, &x11.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h))),
(GLint)(cmd->clip_rect.w),
(GLint)(cmd->clip_rect.h));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&x11.ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
NK_API void
nk_x11_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&x11.atlas);
nk_font_atlas_begin(&x11.atlas);
*atlas = &x11.atlas;
}
NK_API void
nk_x11_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&x11.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_x11_device_upload_atlas(image, w, h);
nk_font_atlas_end(&x11.atlas, nk_handle_id((int)x11.ogl.font_tex), &x11.ogl.null);
if (x11.atlas.default_font)
nk_style_set_font(&x11.ctx, &x11.atlas.default_font->handle);
}
NK_API int
nk_x11_handle_event(XEvent *evt)
{
struct nk_context *ctx = &x11.ctx;
/* optional grabbing behavior */
if (ctx->input.mouse.grab) {
XDefineCursor(x11.dpy, x11.win, x11.cursor);
ctx->input.mouse.grab = 0;
} else if (ctx->input.mouse.ungrab) {
XWarpPointer(x11.dpy, None, x11.win, 0, 0, 0, 0,
(int)ctx->input.mouse.pos.x, (int)ctx->input.mouse.pos.y);
XUndefineCursor(x11.dpy, x11.win);
ctx->input.mouse.ungrab = 0;
}
if (evt->type == KeyPress || evt->type == KeyRelease)
{
/* Key handler */
int ret, down = (evt->type == KeyPress);
KeySym *code = XGetKeyboardMapping(x11.dpy, (KeyCode)evt->xkey.keycode, 1, &ret);
if (*code == XK_Shift_L || *code == XK_Shift_R) nk_input_key(ctx, NK_KEY_SHIFT, down);
else if (*code == XK_Delete) nk_input_key(ctx, NK_KEY_DEL, down);
else if (*code == XK_Return) nk_input_key(ctx, NK_KEY_ENTER, down);
else if (*code == XK_Tab) nk_input_key(ctx, NK_KEY_TAB, down);
else if (*code == XK_Left) nk_input_key(ctx, NK_KEY_LEFT, down);
else if (*code == XK_Right) nk_input_key(ctx, NK_KEY_RIGHT, down);
else if (*code == XK_Up) nk_input_key(ctx, NK_KEY_UP, down);
else if (*code == XK_Down) nk_input_key(ctx, NK_KEY_DOWN, down);
else if (*code == XK_BackSpace) nk_input_key(ctx, NK_KEY_BACKSPACE, down);
else if (*code == XK_space && !down) nk_input_char(ctx, ' ');
else if (*code == XK_Page_Up) nk_input_key(ctx, NK_KEY_SCROLL_UP, down);
else if (*code == XK_Page_Down) nk_input_key(ctx, NK_KEY_SCROLL_DOWN, down);
else if (*code == XK_Home) {
nk_input_key(ctx, NK_KEY_TEXT_START, down);
nk_input_key(ctx, NK_KEY_SCROLL_START, down);
} else if (*code == XK_End) {
nk_input_key(ctx, NK_KEY_TEXT_END, down);
nk_input_key(ctx, NK_KEY_SCROLL_END, down);
} else {
if (*code == 'c' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_COPY, down);
else if (*code == 'v' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_PASTE, down);
else if (*code == 'x' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_CUT, down);
else if (*code == 'z' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_UNDO, down);
else if (*code == 'r' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_REDO, down);
else if (*code == XK_Left && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, down);
else if (*code == XK_Right && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else if (*code == 'b' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, down);
else if (*code == 'e' && (evt->xkey.state & ControlMask))
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, down);
else {
if (*code == 'i')
nk_input_key(ctx, NK_KEY_TEXT_INSERT_MODE, down);
else if (*code == 'r')
nk_input_key(ctx, NK_KEY_TEXT_REPLACE_MODE, down);
if (down) {
char buf[32];
KeySym keysym = 0;
if (XLookupString((XKeyEvent*)evt, buf, 32, &keysym, NULL) != NoSymbol)
nk_input_glyph(ctx, buf);
}
}
}
XFree(code);
return 1;
} else if (evt->type == ButtonPress || evt->type == ButtonRelease) {
/* Button handler */
int down = (evt->type == ButtonPress);
const int x = evt->xbutton.x, y = evt->xbutton.y;
if (evt->xbutton.button == Button1)
nk_input_button(ctx, NK_BUTTON_LEFT, x, y, down);
if (evt->xbutton.button == Button2)
nk_input_button(ctx, NK_BUTTON_MIDDLE, x, y, down);
else if (evt->xbutton.button == Button3)
nk_input_button(ctx, NK_BUTTON_RIGHT, x, y, down);
else if (evt->xbutton.button == Button4)
nk_input_scroll(ctx, 1.0f);
else if (evt->xbutton.button == Button5)
nk_input_scroll(ctx, -1.0f);
else return 0;
return 1;
} else if (evt->type == MotionNotify) {
/* Mouse motion handler */
const int x = evt->xmotion.x, y = evt->xmotion.y;
nk_input_motion(ctx, x, y);
if (ctx->input.mouse.grabbed) {
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
XWarpPointer(x11.dpy, None, x11.win, 0, 0, 0, 0, (int)ctx->input.mouse.pos.x, (int)ctx->input.mouse.pos.y);
}
return 1;
} else if (evt->type == KeymapNotify) {
XRefreshKeyboardMapping(&evt->xmapping);
return 1;
}
return 0;
}
NK_API struct nk_context*
nk_x11_init(Display *dpy, Window win)
{
if (!setlocale(LC_ALL,"")) return 0;
if (!XSupportsLocale()) return 0;
if (!XSetLocaleModifiers("@im=none")) return 0;
if (!nk_x11_device_create()) return 0;
x11.dpy = dpy;
x11.win = win;
/* create invisible cursor */
{static XColor dummy; char data[1] = {0};
Pixmap blank = XCreateBitmapFromData(dpy, win, data, 1, 1);
if (blank == None) return 0;
x11.cursor = XCreatePixmapCursor(dpy, blank, blank, &dummy, &dummy, 0, 0);
XFreePixmap(dpy, blank);}
nk_init_default(&x11.ctx, 0);
return &x11.ctx;
}
NK_API void
nk_x11_shutdown(void)
{
nk_font_atlas_clear(&x11.atlas);
nk_free(&x11.ctx);
nk_x11_device_destroy();
XFreeCursor(x11.dpy, x11.cursor);
memset(&x11, 0, sizeof(x11));
}
#endif

489
deps/nuklear/example/canvas.c vendored
View File

@ -1,489 +0,0 @@
/* nuklear - v1.05 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#define NK_PRIVATE
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#include "../nuklear.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
/* macros */
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
#define NK_SHADER_VERSION "#version 150\n"
/* ===============================================================
*
* DEVICE
*
* ===============================================================*/
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static struct nk_image
icon_load(const char *filename)
{
int x,y,n;
GLuint tex;
unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
if (!data) die("[SDL]: failed to load image: %s", filename);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
stbi_image_free(data);
return nk_image_id((int)tex);
}
static void
device_init(struct device *dev)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
static void
device_upload_atlas(struct device *dev, const void *image, int width, int height)
{
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
static void
device_shutdown(struct device *dev)
{
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
static void
device_draw(struct device *dev, struct nk_context *ctx, int width, int height,
enum nk_anti_aliasing AA)
{
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, MAX_VERTEX_MEMORY, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, MAX_ELEMENT_MEMORY, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, MAX_VERTEX_MEMORY);
nk_buffer_init_fixed(&ebuf, elements, MAX_ELEMENT_MEMORY);
nk_convert(ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h))),
(GLint)(cmd->clip_rect.w),
(GLint)(cmd->clip_rect.h));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
/* glfw callbacks (I don't know if there is a easier way to access text and scroll )*/
static void error_callback(int e, const char *d){printf("Error %d: %s\n", e, d);}
static void text_input(GLFWwindow *win, unsigned int codepoint)
{nk_input_unicode((struct nk_context*)glfwGetWindowUserPointer(win), codepoint);}
static void scroll_input(GLFWwindow *win, double _, double yoff)
{UNUSED(_);nk_input_scroll((struct nk_context*)glfwGetWindowUserPointer(win), (float)yoff);}
static void
pump_input(struct nk_context *ctx, GLFWwindow *win)
{
double x, y;
nk_input_begin(ctx);
glfwPollEvents();
nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_P) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SHIFT, 1);
} else {
nk_input_key(ctx, NK_KEY_COPY, 0);
nk_input_key(ctx, NK_KEY_PASTE, 0);
nk_input_key(ctx, NK_KEY_CUT, 0);
nk_input_key(ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(ctx, (int)x, (int)y);
nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_end(ctx);
}
struct nk_canvas {
struct nk_command_buffer *painter;
struct nk_vec2 item_spacing;
struct nk_vec2 panel_padding;
struct nk_style_item window_background;
};
static void
canvas_begin(struct nk_context *ctx, struct nk_canvas *canvas, nk_flags flags,
int x, int y, int width, int height, struct nk_color background_color)
{
/* save style properties which will be overwritten */
canvas->panel_padding = ctx->style.window.padding;
canvas->item_spacing = ctx->style.window.spacing;
canvas->window_background = ctx->style.window.fixed_background;
/* use the complete window space and set background */
ctx->style.window.spacing = nk_vec2(0,0);
ctx->style.window.padding = nk_vec2(0,0);
ctx->style.window.fixed_background = nk_style_item_color(background_color);
/* create/update window and set position + size */
flags = flags & ~NK_WINDOW_DYNAMIC;
nk_begin(ctx, "Window", nk_rect(x, y, width, height), NK_WINDOW_NO_SCROLLBAR|flags);
nk_window_set_bounds(ctx, nk_rect(x, y, width, height));
/* allocate the complete window space for drawing */
{struct nk_rect total_space;
total_space = nk_window_get_content_region(ctx);
nk_layout_row_dynamic(ctx, total_space.h, 1);
nk_widget(&total_space, ctx);
canvas->painter = nk_window_get_canvas(ctx);}
}
static void
canvas_end(struct nk_context *ctx, struct nk_canvas *canvas)
{
nk_end(ctx);
ctx->style.window.spacing = canvas->panel_padding;
ctx->style.window.padding = canvas->item_spacing;
ctx->style.window.fixed_background = canvas->window_background;
}
int main(int argc, char *argv[])
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
/* GUI */
struct device device;
struct nk_font_atlas atlas;
struct nk_context ctx;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwSetWindowUserPointer(win, &ctx);
glfwSetCharCallback(win, text_input);
glfwSetScrollCallback(win, scroll_input);
glfwGetWindowSize(win, &width, &height);
/* OpenGL */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
/* GUI */
{device_init(&device);
{const void *image; int w, h;
struct nk_font *font;
nk_font_atlas_init_default(&atlas);
nk_font_atlas_begin(&atlas);
font = nk_font_atlas_add_default(&atlas, 13, 0);
image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
device_upload_atlas(&device, image, w, h);
nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null);
nk_init_default(&ctx, &font->handle);
glEnable(GL_TEXTURE_2D);
while (!glfwWindowShouldClose(win))
{
/* input */
pump_input(&ctx, win);
/* draw */
{struct nk_canvas canvas;
canvas_begin(&ctx, &canvas, 0, 0, 0, width, height, nk_rgb(250,250,250));
{
nk_fill_rect(canvas.painter, nk_rect(15,15,210,210), 5, nk_rgb(247, 230, 154));
nk_fill_rect(canvas.painter, nk_rect(20,20,200,200), 5, nk_rgb(188, 174, 118));
nk_draw_text(canvas.painter, nk_rect(30, 30, 150, 20), "Text to draw", 12, &font->handle, nk_rgb(188,174,118), nk_rgb(0,0,0));
nk_fill_rect(canvas.painter, nk_rect(250,20,100,100), 0, nk_rgb(0,0,255));
nk_fill_circle(canvas.painter, nk_rect(20,250,100,100), nk_rgb(255,0,0));
nk_fill_triangle(canvas.painter, 250, 250, 350, 250, 300, 350, nk_rgb(0,255,0));
nk_fill_arc(canvas.painter, 300, 180, 50, 0, 3.141592654f * 3.0f / 4.0f, nk_rgb(255,255,0));
{float points[12];
points[0] = 200; points[1] = 250;
points[2] = 250; points[3] = 350;
points[4] = 225; points[5] = 350;
points[6] = 200; points[7] = 300;
points[8] = 175; points[9] = 350;
points[10] = 150; points[11] = 350;
nk_fill_polygon(canvas.painter, points, 6, nk_rgb(0,0,0));}
nk_stroke_line(canvas.painter, 15, 10, 200, 10, 2.0f, nk_rgb(189,45,75));
nk_stroke_rect(canvas.painter, nk_rect(370, 20, 100, 100), 10, 3, nk_rgb(0,0,255));
nk_stroke_curve(canvas.painter, 380, 200, 405, 270, 455, 120, 480, 200, 2, nk_rgb(0,150,220));
nk_stroke_circle(canvas.painter, nk_rect(20, 370, 100, 100), 5, nk_rgb(0,255,120));
nk_stroke_triangle(canvas.painter, 370, 250, 470, 250, 420, 350, 6, nk_rgb(255,0,143));
}
canvas_end(&ctx, &canvas);}
/* Draw */
glfwGetWindowSize(win, &width, &height);
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
device_draw(&device, &ctx, width, height, NK_ANTI_ALIASING_ON);
glfwSwapBuffers(win);
}}}
nk_font_atlas_clear(&atlas);
nk_free(&ctx);
device_shutdown(&device);
glfwTerminate();
return 0;
}

906
deps/nuklear/example/extended.c vendored
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@ -1,906 +0,0 @@
/* nuklear - v1.05 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#include "../nuklear.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
/* macros */
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
struct media {
struct nk_font *font_14;
struct nk_font *font_18;
struct nk_font *font_20;
struct nk_font *font_22;
struct nk_image unchecked;
struct nk_image checked;
struct nk_image rocket;
struct nk_image cloud;
struct nk_image pen;
struct nk_image play;
struct nk_image pause;
struct nk_image stop;
struct nk_image prev;
struct nk_image next;
struct nk_image tools;
struct nk_image dir;
struct nk_image copy;
struct nk_image convert;
struct nk_image del;
struct nk_image edit;
struct nk_image images[9];
struct nk_image menu[6];
};
/* ===============================================================
*
* CUSTOM WIDGET
*
* ===============================================================*/
static int
ui_piemenu(struct nk_context *ctx, struct nk_vec2 pos, float radius,
struct nk_image *icons, int item_count)
{
int ret = -1;
struct nk_rect total_space;
struct nk_rect bounds;
int active_item = 0;
/* pie menu popup */
struct nk_color border = ctx->style.window.border_color;
struct nk_style_item background = ctx->style.window.fixed_background;
ctx->style.window.fixed_background = nk_style_item_hide();
ctx->style.window.border_color = nk_rgba(0,0,0,0);
total_space = nk_window_get_content_region(ctx);
ctx->style.window.spacing = nk_vec2(0,0);
ctx->style.window.padding = nk_vec2(0,0);
if (nk_popup_begin(ctx, NK_POPUP_STATIC, "piemenu", NK_WINDOW_NO_SCROLLBAR,
nk_rect(pos.x - total_space.x - radius, pos.y - radius - total_space.y,
2*radius,2*radius)))
{
int i = 0;
struct nk_command_buffer* out = nk_window_get_canvas(ctx);
const struct nk_input *in = &ctx->input;
total_space = nk_window_get_content_region(ctx);
ctx->style.window.spacing = nk_vec2(4,4);
ctx->style.window.padding = nk_vec2(8,8);
nk_layout_row_dynamic(ctx, total_space.h, 1);
nk_widget(&bounds, ctx);
/* outer circle */
nk_fill_circle(out, bounds, nk_rgb(50,50,50));
{
/* circle buttons */
float step = (2 * 3.141592654f) / (float)(MAX(1,item_count));
float a_min = 0; float a_max = step;
struct nk_vec2 center = nk_vec2(bounds.x + bounds.w / 2.0f, bounds.y + bounds.h / 2.0f);
struct nk_vec2 drag = nk_vec2(in->mouse.pos.x - center.x, in->mouse.pos.y - center.y);
float angle = (float)atan2(drag.y, drag.x);
if (angle < -0.0f) angle += 2.0f * 3.141592654f;
active_item = (int)(angle/step);
for (i = 0; i < item_count; ++i) {
struct nk_rect content;
float rx, ry, dx, dy, a;
nk_fill_arc(out, center.x, center.y, (bounds.w/2.0f),
a_min, a_max, (active_item == i) ? nk_rgb(45,100,255): nk_rgb(60,60,60));
/* separator line */
rx = bounds.w/2.0f; ry = 0;
dx = rx * (float)cos(a_min) - ry * (float)sin(a_min);
dy = rx * (float)sin(a_min) + ry * (float)cos(a_min);
nk_stroke_line(out, center.x, center.y,
center.x + dx, center.y + dy, 1.0f, nk_rgb(50,50,50));
/* button content */
a = a_min + (a_max - a_min)/2.0f;
rx = bounds.w/2.5f; ry = 0;
content.w = 30; content.h = 30;
content.x = center.x + ((rx * (float)cos(a) - ry * (float)sin(a)) - content.w/2.0f);
content.y = center.y + (rx * (float)sin(a) + ry * (float)cos(a) - content.h/2.0f);
nk_draw_image(out, content, &icons[i], nk_rgb(255,255,255));
a_min = a_max; a_max += step;
}
}
{
/* inner circle */
struct nk_rect inner;
inner.x = bounds.x + bounds.w/2 - bounds.w/4;
inner.y = bounds.y + bounds.h/2 - bounds.h/4;
inner.w = bounds.w/2; inner.h = bounds.h/2;
nk_fill_circle(out, inner, nk_rgb(45,45,45));
/* active icon content */
bounds.w = inner.w / 2.0f;
bounds.h = inner.h / 2.0f;
bounds.x = inner.x + inner.w/2 - bounds.w/2;
bounds.y = inner.y + inner.h/2 - bounds.h/2;
nk_draw_image(out, bounds, &icons[active_item], nk_rgb(255,255,255));
}
nk_layout_space_end(ctx);
if (!nk_input_is_mouse_down(&ctx->input, NK_BUTTON_RIGHT)) {
nk_popup_close(ctx);
ret = active_item;
}
} else ret = -2;
ctx->style.window.spacing = nk_vec2(4,4);
ctx->style.window.padding = nk_vec2(8,8);
nk_popup_end(ctx);
ctx->style.window.fixed_background = background;
ctx->style.window.border_color = border;
return ret;
}
/* ===============================================================
*
* GRID
*
* ===============================================================*/
static void
grid_demo(struct nk_context *ctx, struct media *media)
{
static char text[3][64];
static int text_len[3];
static const char *items[] = {"Item 0","item 1","item 2"};
static int selected_item = 0;
static int check = 1;
int i;
nk_style_set_font(ctx, &media->font_20->handle);
if (nk_begin(ctx, "Grid Demo", nk_rect(600, 350, 275, 250),
NK_WINDOW_TITLE|NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|
NK_WINDOW_NO_SCROLLBAR))
{
nk_style_set_font(ctx, &media->font_18->handle);
nk_layout_row_dynamic(ctx, 30, 2);
nk_label(ctx, "Floating point:", NK_TEXT_RIGHT);
nk_edit_string(ctx, NK_EDIT_FIELD, text[0], &text_len[0], 64, nk_filter_float);
nk_label(ctx, "Hexadecimal:", NK_TEXT_RIGHT);
nk_edit_string(ctx, NK_EDIT_FIELD, text[1], &text_len[1], 64, nk_filter_hex);
nk_label(ctx, "Binary:", NK_TEXT_RIGHT);
nk_edit_string(ctx, NK_EDIT_FIELD, text[2], &text_len[2], 64, nk_filter_binary);
nk_label(ctx, "Checkbox:", NK_TEXT_RIGHT);
nk_checkbox_label(ctx, "Check me", &check);
nk_label(ctx, "Combobox:", NK_TEXT_RIGHT);
if (nk_combo_begin_label(ctx, items[selected_item], nk_vec2(nk_widget_width(ctx), 200))) {
nk_layout_row_dynamic(ctx, 25, 1);
for (i = 0; i < 3; ++i)
if (nk_combo_item_label(ctx, items[i], NK_TEXT_LEFT))
selected_item = i;
nk_combo_end(ctx);
}
}
nk_end(ctx);
nk_style_set_font(ctx, &media->font_14->handle);
}
/* ===============================================================
*
* BUTTON DEMO
*
* ===============================================================*/
static void
ui_header(struct nk_context *ctx, struct media *media, const char *title)
{
nk_style_set_font(ctx, &media->font_18->handle);
nk_layout_row_dynamic(ctx, 20, 1);
nk_label(ctx, title, NK_TEXT_LEFT);
}
static void
ui_widget(struct nk_context *ctx, struct media *media, float height)
{
static const float ratio[] = {0.15f, 0.85f};
nk_style_set_font(ctx, &media->font_22->handle);
nk_layout_row(ctx, NK_DYNAMIC, height, 2, ratio);
nk_spacing(ctx, 1);
}
static void
ui_widget_centered(struct nk_context *ctx, struct media *media, float height)
{
static const float ratio[] = {0.15f, 0.50f, 0.35f};
nk_style_set_font(ctx, &media->font_22->handle);
nk_layout_row(ctx, NK_DYNAMIC, height, 3, ratio);
nk_spacing(ctx, 1);
}
static void
button_demo(struct nk_context *ctx, struct media *media)
{
static int option = 1;
static int toggle0 = 1;
static int toggle1 = 0;
static int toggle2 = 1;
nk_style_set_font(ctx, &media->font_20->handle);
nk_begin(ctx, "Button Demo", nk_rect(50,50,255,610),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_TITLE);
/*------------------------------------------------
* MENU
*------------------------------------------------*/
nk_menubar_begin(ctx);
{
/* toolbar */
nk_layout_row_static(ctx, 40, 40, 4);
if (nk_menu_begin_image(ctx, "Music", media->play, nk_vec2(110,120)))
{
/* settings */
nk_layout_row_dynamic(ctx, 25, 1);
nk_menu_item_image_label(ctx, media->play, "Play", NK_TEXT_RIGHT);
nk_menu_item_image_label(ctx, media->stop, "Stop", NK_TEXT_RIGHT);
nk_menu_item_image_label(ctx, media->pause, "Pause", NK_TEXT_RIGHT);
nk_menu_item_image_label(ctx, media->next, "Next", NK_TEXT_RIGHT);
nk_menu_item_image_label(ctx, media->prev, "Prev", NK_TEXT_RIGHT);
nk_menu_end(ctx);
}
nk_button_image(ctx, media->tools);
nk_button_image(ctx, media->cloud);
nk_button_image(ctx, media->pen);
}
nk_menubar_end(ctx);
/*------------------------------------------------
* BUTTON
*------------------------------------------------*/
ui_header(ctx, media, "Push buttons");
ui_widget(ctx, media, 35);
if (nk_button_label(ctx, "Push me"))
fprintf(stdout, "pushed!\n");
ui_widget(ctx, media, 35);
if (nk_button_image_label(ctx, media->rocket, "Styled", NK_TEXT_CENTERED))
fprintf(stdout, "rocket!\n");
/*------------------------------------------------
* REPEATER
*------------------------------------------------*/
ui_header(ctx, media, "Repeater");
ui_widget(ctx, media, 35);
if (nk_button_label(ctx, "Press me"))
fprintf(stdout, "pressed!\n");
/*------------------------------------------------
* TOGGLE
*------------------------------------------------*/
ui_header(ctx, media, "Toggle buttons");
ui_widget(ctx, media, 35);
if (nk_button_image_label(ctx, (toggle0) ? media->checked: media->unchecked, "Toggle", NK_TEXT_LEFT))
toggle0 = !toggle0;
ui_widget(ctx, media, 35);
if (nk_button_image_label(ctx, (toggle1) ? media->checked: media->unchecked, "Toggle", NK_TEXT_LEFT))
toggle1 = !toggle1;
ui_widget(ctx, media, 35);
if (nk_button_image_label(ctx, (toggle2) ? media->checked: media->unchecked, "Toggle", NK_TEXT_LEFT))
toggle2 = !toggle2;
/*------------------------------------------------
* RADIO
*------------------------------------------------*/
ui_header(ctx, media, "Radio buttons");
ui_widget(ctx, media, 35);
if (nk_button_symbol_label(ctx, (option == 0)?NK_SYMBOL_CIRCLE_OUTLINE:NK_SYMBOL_CIRCLE_SOLID, "Select", NK_TEXT_LEFT))
option = 0;
ui_widget(ctx, media, 35);
if (nk_button_symbol_label(ctx, (option == 1)?NK_SYMBOL_CIRCLE_OUTLINE:NK_SYMBOL_CIRCLE_SOLID, "Select", NK_TEXT_LEFT))
option = 1;
ui_widget(ctx, media, 35);
if (nk_button_symbol_label(ctx, (option == 2)?NK_SYMBOL_CIRCLE_OUTLINE:NK_SYMBOL_CIRCLE_SOLID, "Select", NK_TEXT_LEFT))
option = 2;
/*------------------------------------------------
* CONTEXTUAL
*------------------------------------------------*/
nk_style_set_font(ctx, &media->font_18->handle);
if (nk_contextual_begin(ctx, NK_WINDOW_NO_SCROLLBAR, nk_vec2(150, 300), nk_window_get_bounds(ctx))) {
nk_layout_row_dynamic(ctx, 30, 1);
if (nk_contextual_item_image_label(ctx, media->copy, "Clone", NK_TEXT_RIGHT))
fprintf(stdout, "pressed clone!\n");
if (nk_contextual_item_image_label(ctx, media->del, "Delete", NK_TEXT_RIGHT))
fprintf(stdout, "pressed delete!\n");
if (nk_contextual_item_image_label(ctx, media->convert, "Convert", NK_TEXT_RIGHT))
fprintf(stdout, "pressed convert!\n");
if (nk_contextual_item_image_label(ctx, media->edit, "Edit", NK_TEXT_RIGHT))
fprintf(stdout, "pressed edit!\n");
nk_contextual_end(ctx);
}
nk_style_set_font(ctx, &media->font_14->handle);
nk_end(ctx);
}
/* ===============================================================
*
* BASIC DEMO
*
* ===============================================================*/
static void
basic_demo(struct nk_context *ctx, struct media *media)
{
static int image_active;
static int check0 = 1;
static int check1 = 0;
static size_t prog = 80;
static int selected_item = 0;
static int selected_image = 3;
static int selected_icon = 0;
static const char *items[] = {"Item 0","item 1","item 2"};
static int piemenu_active = 0;
static struct nk_vec2 piemenu_pos;
int i = 0;
nk_style_set_font(ctx, &media->font_20->handle);
nk_begin(ctx, "Basic Demo", nk_rect(320, 50, 275, 610),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_TITLE);
/*------------------------------------------------
* POPUP BUTTON
*------------------------------------------------*/
ui_header(ctx, media, "Popup & Scrollbar & Images");
ui_widget(ctx, media, 35);
if (nk_button_image_label(ctx, media->dir, "Images", NK_TEXT_CENTERED))
image_active = !image_active;
/*------------------------------------------------
* SELECTED IMAGE
*------------------------------------------------*/
ui_header(ctx, media, "Selected Image");
ui_widget_centered(ctx, media, 100);
nk_image(ctx, media->images[selected_image]);
/*------------------------------------------------
* IMAGE POPUP
*------------------------------------------------*/
if (image_active) {
struct nk_panel popup;
if (nk_popup_begin(ctx, NK_POPUP_STATIC, "Image Popup", 0, nk_rect(265, 0, 320, 220))) {
nk_layout_row_static(ctx, 82, 82, 3);
for (i = 0; i < 9; ++i) {
if (nk_button_image(ctx, media->images[i])) {
selected_image = i;
image_active = 0;
nk_popup_close(ctx);
}
}
nk_popup_end(ctx);
}
}
/*------------------------------------------------
* COMBOBOX
*------------------------------------------------*/
ui_header(ctx, media, "Combo box");
ui_widget(ctx, media, 40);
if (nk_combo_begin_label(ctx, items[selected_item], nk_vec2(nk_widget_width(ctx), 200))) {
nk_layout_row_dynamic(ctx, 35, 1);
for (i = 0; i < 3; ++i)
if (nk_combo_item_label(ctx, items[i], NK_TEXT_LEFT))
selected_item = i;
nk_combo_end(ctx);
}
ui_widget(ctx, media, 40);
if (nk_combo_begin_image_label(ctx, items[selected_icon], media->images[selected_icon], nk_vec2(nk_widget_width(ctx), 200))) {
nk_layout_row_dynamic(ctx, 35, 1);
for (i = 0; i < 3; ++i)
if (nk_combo_item_image_label(ctx, media->images[i], items[i], NK_TEXT_RIGHT))
selected_icon = i;
nk_combo_end(ctx);
}
/*------------------------------------------------
* CHECKBOX
*------------------------------------------------*/
ui_header(ctx, media, "Checkbox");
ui_widget(ctx, media, 30);
nk_checkbox_label(ctx, "Flag 1", &check0);
ui_widget(ctx, media, 30);
nk_checkbox_label(ctx, "Flag 2", &check1);
/*------------------------------------------------
* PROGRESSBAR
*------------------------------------------------*/
ui_header(ctx, media, "Progressbar");
ui_widget(ctx, media, 35);
nk_progress(ctx, &prog, 100, nk_true);
/*------------------------------------------------
* PIEMENU
*------------------------------------------------*/
if (nk_input_is_mouse_click_down_in_rect(&ctx->input, NK_BUTTON_RIGHT,
nk_window_get_bounds(ctx),nk_true)){
piemenu_pos = ctx->input.mouse.pos;
piemenu_active = 1;
}
if (piemenu_active) {
int ret = ui_piemenu(ctx, piemenu_pos, 140, &media->menu[0], 6);
if (ret == -2) piemenu_active = 0;
if (ret != -1) {
fprintf(stdout, "piemenu selected: %d\n", ret);
piemenu_active = 0;
}
}
nk_style_set_font(ctx, &media->font_14->handle);
nk_end(ctx);
}
/* ===============================================================
*
* DEVICE
*
* ===============================================================*/
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static struct nk_image
icon_load(const char *filename)
{
int x,y,n;
GLuint tex;
unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
if (!data) die("[SDL]: failed to load image: %s", filename);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
stbi_image_free(data);
return nk_image_id((int)tex);
}
static void
device_init(struct device *dev)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
static void
device_upload_atlas(struct device *dev, const void *image, int width, int height)
{
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
static void
device_shutdown(struct device *dev)
{
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
static void
device_draw(struct device *dev, struct nk_context *ctx, int width, int height,
struct nk_vec2 scale, enum nk_anti_aliasing AA)
{
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, MAX_VERTEX_MEMORY, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, MAX_ELEMENT_MEMORY, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, MAX_VERTEX_MEMORY);
nk_buffer_init_fixed(&ebuf, elements, MAX_ELEMENT_MEMORY);
nk_convert(ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * scale.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
(GLint)(cmd->clip_rect.w * scale.x),
(GLint)(cmd->clip_rect.h * scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
/* glfw callbacks (I don't know if there is a easier way to access text and scroll )*/
static void error_callback(int e, const char *d){printf("Error %d: %s\n", e, d);}
static void text_input(GLFWwindow *win, unsigned int codepoint)
{nk_input_unicode((struct nk_context*)glfwGetWindowUserPointer(win), codepoint);}
static void scroll_input(GLFWwindow *win, double _, double yoff)
{UNUSED(_);nk_input_scroll((struct nk_context*)glfwGetWindowUserPointer(win), (float)yoff);}
int main(int argc, char *argv[])
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
int display_width=0, display_height=0;
/* GUI */
struct device device;
struct nk_font_atlas atlas;
struct media media;
struct nk_context ctx;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwSetWindowUserPointer(win, &ctx);
glfwSetCharCallback(win, text_input);
glfwSetScrollCallback(win, scroll_input);
glfwGetWindowSize(win, &width, &height);
glfwGetFramebufferSize(win, &display_width, &display_height);
/* OpenGL */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
{/* GUI */
device_init(&device);
{const void *image; int w, h;
struct nk_font_config cfg = nk_font_config(0);
cfg.oversample_h = 3; cfg.oversample_v = 2;
/* Loading one font with different heights is only required if you want higher
* quality text otherwise you can just set the font height directly
* e.g.: ctx->style.font.height = 20. */
nk_font_atlas_init_default(&atlas);
nk_font_atlas_begin(&atlas);
media.font_14 = nk_font_atlas_add_from_file(&atlas, "../../extra_font/Roboto-Regular.ttf", 14.0f, &cfg);
media.font_18 = nk_font_atlas_add_from_file(&atlas, "../../extra_font/Roboto-Regular.ttf", 18.0f, &cfg);
media.font_20 = nk_font_atlas_add_from_file(&atlas, "../../extra_font/Roboto-Regular.ttf", 20.0f, &cfg);
media.font_22 = nk_font_atlas_add_from_file(&atlas, "../../extra_font/Roboto-Regular.ttf", 22.0f, &cfg);
image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
device_upload_atlas(&device, image, w, h);
nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null);}
nk_init_default(&ctx, &media.font_14->handle);}
/* icons */
glEnable(GL_TEXTURE_2D);
media.unchecked = icon_load("../icon/unchecked.png");
media.checked = icon_load("../icon/checked.png");
media.rocket = icon_load("../icon/rocket.png");
media.cloud = icon_load("../icon/cloud.png");
media.pen = icon_load("../icon/pen.png");
media.play = icon_load("../icon/play.png");
media.pause = icon_load("../icon/pause.png");
media.stop = icon_load("../icon/stop.png");
media.next = icon_load("../icon/next.png");
media.prev = icon_load("../icon/prev.png");
media.tools = icon_load("../icon/tools.png");
media.dir = icon_load("../icon/directory.png");
media.copy = icon_load("../icon/copy.png");
media.convert = icon_load("../icon/export.png");
media.del = icon_load("../icon/delete.png");
media.edit = icon_load("../icon/edit.png");
media.menu[0] = icon_load("../icon/home.png");
media.menu[1] = icon_load("../icon/phone.png");
media.menu[2] = icon_load("../icon/plane.png");
media.menu[3] = icon_load("../icon/wifi.png");
media.menu[4] = icon_load("../icon/settings.png");
media.menu[5] = icon_load("../icon/volume.png");
{int i;
for (i = 0; i < 9; ++i) {
char buffer[256];
sprintf(buffer, "../images/image%d.png", (i+1));
media.images[i] = icon_load(buffer);
}}
while (!glfwWindowShouldClose(win))
{
/* High DPI displays */
struct nk_vec2 scale;
glfwGetWindowSize(win, &width, &height);
glfwGetFramebufferSize(win, &display_width, &display_height);
scale.x = (float)display_width/(float)width;
scale.y = (float)display_height/(float)height;
/* Input */
{double x, y;
nk_input_begin(&ctx);
glfwPollEvents();
nk_input_key(&ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(&ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_P) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_SHIFT, 1);
} else {
nk_input_key(&ctx, NK_KEY_COPY, 0);
nk_input_key(&ctx, NK_KEY_PASTE, 0);
nk_input_key(&ctx, NK_KEY_CUT, 0);
nk_input_key(&ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(&ctx, (int)x, (int)y);
nk_input_button(&ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_end(&ctx);}
/* GUI */
basic_demo(&ctx, &media);
button_demo(&ctx, &media);
grid_demo(&ctx, &media);
/* Draw */
glViewport(0, 0, display_width, display_height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
device_draw(&device, &ctx, width, height, scale, NK_ANTI_ALIASING_ON);
glfwSwapBuffers(win);
}
glDeleteTextures(1,(const GLuint*)&media.unchecked.handle.id);
glDeleteTextures(1,(const GLuint*)&media.checked.handle.id);
glDeleteTextures(1,(const GLuint*)&media.rocket.handle.id);
glDeleteTextures(1,(const GLuint*)&media.cloud.handle.id);
glDeleteTextures(1,(const GLuint*)&media.pen.handle.id);
glDeleteTextures(1,(const GLuint*)&media.play.handle.id);
glDeleteTextures(1,(const GLuint*)&media.pause.handle.id);
glDeleteTextures(1,(const GLuint*)&media.stop.handle.id);
glDeleteTextures(1,(const GLuint*)&media.next.handle.id);
glDeleteTextures(1,(const GLuint*)&media.prev.handle.id);
glDeleteTextures(1,(const GLuint*)&media.tools.handle.id);
glDeleteTextures(1,(const GLuint*)&media.dir.handle.id);
glDeleteTextures(1,(const GLuint*)&media.del.handle.id);
nk_font_atlas_clear(&atlas);
nk_free(&ctx);
device_shutdown(&device);
glfwTerminate();
return 0;
}

910
deps/nuklear/example/file_browser.c vendored
View File

@ -1,910 +0,0 @@
/* nuklear - v1.05 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#include <unistd.h>
#include <dirent.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#include "../nuklear.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
/* macros */
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
/* ===============================================================
*
* GUI
*
* ===============================================================*/
struct icons {
struct nk_image desktop;
struct nk_image home;
struct nk_image computer;
struct nk_image directory;
struct nk_image default_file;
struct nk_image text_file;
struct nk_image music_file;
struct nk_image font_file;
struct nk_image img_file;
struct nk_image movie_file;
};
enum file_groups {
FILE_GROUP_DEFAULT,
FILE_GROUP_TEXT,
FILE_GROUP_MUSIC,
FILE_GROUP_FONT,
FILE_GROUP_IMAGE,
FILE_GROUP_MOVIE,
FILE_GROUP_MAX
};
enum file_types {
FILE_DEFAULT,
FILE_TEXT,
FILE_C_SOURCE,
FILE_CPP_SOURCE,
FILE_HEADER,
FILE_CPP_HEADER,
FILE_MP3,
FILE_WAV,
FILE_OGG,
FILE_TTF,
FILE_BMP,
FILE_PNG,
FILE_JPEG,
FILE_PCX,
FILE_TGA,
FILE_GIF,
FILE_MAX
};
struct file_group {
enum file_groups group;
const char *name;
struct nk_image *icon;
};
struct file {
enum file_types type;
const char *suffix;
enum file_groups group;
};
struct media {
int font;
int icon_sheet;
struct icons icons;
struct file_group group[FILE_GROUP_MAX];
struct file files[FILE_MAX];
};
#define MAX_PATH_LEN 512
struct file_browser {
/* path */
char file[MAX_PATH_LEN];
char home[MAX_PATH_LEN];
char desktop[MAX_PATH_LEN];
char directory[MAX_PATH_LEN];
/* directory content */
char **files;
char **directories;
size_t file_count;
size_t dir_count;
struct media *media;
};
#ifdef __unix__
#include <dirent.h>
#include <unistd.h>
#endif
#ifndef _WIN32
# include <pwd.h>
#endif
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static char*
file_load(const char* path, size_t* siz)
{
char *buf;
FILE *fd = fopen(path, "rb");
if (!fd) die("Failed to open file: %s\n", path);
fseek(fd, 0, SEEK_END);
*siz = (size_t)ftell(fd);
fseek(fd, 0, SEEK_SET);
buf = (char*)calloc(*siz, 1);
fread(buf, *siz, 1, fd);
fclose(fd);
return buf;
}
static char*
str_duplicate(const char *src)
{
char *ret;
size_t len = strlen(src);
if (!len) return 0;
ret = (char*)malloc(len+1);
if (!ret) return 0;
memcpy(ret, src, len);
ret[len] = '\0';
return ret;
}
static void
dir_free_list(char **list, size_t size)
{
size_t i;
for (i = 0; i < size; ++i)
free(list[i]);
free(list);
}
static char**
dir_list(const char *dir, int return_subdirs, size_t *count)
{
size_t n = 0;
char buffer[MAX_PATH_LEN];
char **results = NULL;
const DIR *none = NULL;
size_t capacity = 32;
size_t size;
DIR *z;
assert(dir);
assert(count);
strncpy(buffer, dir, MAX_PATH_LEN);
n = strlen(buffer);
if (n > 0 && (buffer[n-1] != '/'))
buffer[n++] = '/';
size = 0;
z = opendir(dir);
if (z != none) {
int nonempty = 1;
struct dirent *data = readdir(z);
nonempty = (data != NULL);
if (!nonempty) return NULL;
do {
DIR *y;
char *p;
int is_subdir;
if (data->d_name[0] == '.')
continue;
strncpy(buffer + n, data->d_name, MAX_PATH_LEN-n);
y = opendir(buffer);
is_subdir = (y != NULL);
if (y != NULL) closedir(y);
if ((return_subdirs && is_subdir) || (!is_subdir && !return_subdirs)){
if (!size) {
results = (char**)calloc(sizeof(char*), capacity);
} else if (size >= capacity) {
void *old = results;
capacity = capacity * 2;
results = (char**)realloc(results, capacity * sizeof(char*));
assert(results);
if (!results) free(old);
}
p = str_duplicate(data->d_name);
results[size++] = p;
}
} while ((data = readdir(z)) != NULL);
}
if (z) closedir(z);
*count = size;
return results;
}
static struct file_group
FILE_GROUP(enum file_groups group, const char *name, struct nk_image *icon)
{
struct file_group fg;
fg.group = group;
fg.name = name;
fg.icon = icon;
return fg;
}
static struct file
FILE_DEF(enum file_types type, const char *suffix, enum file_groups group)
{
struct file fd;
fd.type = type;
fd.suffix = suffix;
fd.group = group;
return fd;
}
static struct nk_image*
media_icon_for_file(struct media *media, const char *file)
{
int i = 0;
const char *s = file;
char suffix[4];
int found = 0;
memset(suffix, 0, sizeof(suffix));
/* extract suffix .xxx from file */
while (*s++ != '\0') {
if (found && i < 3)
suffix[i++] = *s;
if (*s == '.') {
if (found){
found = 0;
break;
}
found = 1;
}
}
/* check for all file definition of all groups for fitting suffix*/
for (i = 0; i < FILE_MAX && found; ++i) {
struct file *d = &media->files[i];
{
const char *f = d->suffix;
s = suffix;
while (f && *f && *s && *s == *f) {
s++; f++;
}
/* found correct file definition so */
if (f && *s == '\0' && *f == '\0')
return media->group[d->group].icon;
}
}
return &media->icons.default_file;
}
static void
media_init(struct media *media)
{
/* file groups */
struct icons *icons = &media->icons;
media->group[FILE_GROUP_DEFAULT] = FILE_GROUP(FILE_GROUP_DEFAULT,"default",&icons->default_file);
media->group[FILE_GROUP_TEXT] = FILE_GROUP(FILE_GROUP_TEXT, "textual", &icons->text_file);
media->group[FILE_GROUP_MUSIC] = FILE_GROUP(FILE_GROUP_MUSIC, "music", &icons->music_file);
media->group[FILE_GROUP_FONT] = FILE_GROUP(FILE_GROUP_FONT, "font", &icons->font_file);
media->group[FILE_GROUP_IMAGE] = FILE_GROUP(FILE_GROUP_IMAGE, "image", &icons->img_file);
media->group[FILE_GROUP_MOVIE] = FILE_GROUP(FILE_GROUP_MOVIE, "movie", &icons->movie_file);
/* files */
media->files[FILE_DEFAULT] = FILE_DEF(FILE_DEFAULT, NULL, FILE_GROUP_DEFAULT);
media->files[FILE_TEXT] = FILE_DEF(FILE_TEXT, "txt", FILE_GROUP_TEXT);
media->files[FILE_C_SOURCE] = FILE_DEF(FILE_C_SOURCE, "c", FILE_GROUP_TEXT);
media->files[FILE_CPP_SOURCE] = FILE_DEF(FILE_CPP_SOURCE, "cpp", FILE_GROUP_TEXT);
media->files[FILE_HEADER] = FILE_DEF(FILE_HEADER, "h", FILE_GROUP_TEXT);
media->files[FILE_CPP_HEADER] = FILE_DEF(FILE_HEADER, "hpp", FILE_GROUP_TEXT);
media->files[FILE_MP3] = FILE_DEF(FILE_MP3, "mp3", FILE_GROUP_MUSIC);
media->files[FILE_WAV] = FILE_DEF(FILE_WAV, "wav", FILE_GROUP_MUSIC);
media->files[FILE_OGG] = FILE_DEF(FILE_OGG, "ogg", FILE_GROUP_MUSIC);
media->files[FILE_TTF] = FILE_DEF(FILE_TTF, "ttf", FILE_GROUP_FONT);
media->files[FILE_BMP] = FILE_DEF(FILE_BMP, "bmp", FILE_GROUP_IMAGE);
media->files[FILE_PNG] = FILE_DEF(FILE_PNG, "png", FILE_GROUP_IMAGE);
media->files[FILE_JPEG] = FILE_DEF(FILE_JPEG, "jpg", FILE_GROUP_IMAGE);
media->files[FILE_PCX] = FILE_DEF(FILE_PCX, "pcx", FILE_GROUP_IMAGE);
media->files[FILE_TGA] = FILE_DEF(FILE_TGA, "tga", FILE_GROUP_IMAGE);
media->files[FILE_GIF] = FILE_DEF(FILE_GIF, "gif", FILE_GROUP_IMAGE);
}
static void
file_browser_reload_directory_content(struct file_browser *browser, const char *path)
{
strncpy(browser->directory, path, MAX_PATH_LEN);
dir_free_list(browser->files, browser->file_count);
dir_free_list(browser->directories, browser->dir_count);
browser->files = dir_list(path, 0, &browser->file_count);
browser->directories = dir_list(path, 1, &browser->dir_count);
}
static void
file_browser_init(struct file_browser *browser, struct media *media)
{
memset(browser, 0, sizeof(*browser));
browser->media = media;
{
/* load files and sub-directory list */
const char *home = getenv("HOME");
#ifdef _WIN32
if (!home) home = getenv("USERPROFILE");
#else
if (!home) home = getpwuid(getuid())->pw_dir;
{
size_t l;
strncpy(browser->home, home, MAX_PATH_LEN);
l = strlen(browser->home);
strcpy(browser->home + l, "/");
strcpy(browser->directory, browser->home);
}
#endif
{
size_t l;
strcpy(browser->desktop, browser->home);
l = strlen(browser->desktop);
strcpy(browser->desktop + l, "desktop/");
}
browser->files = dir_list(browser->directory, 0, &browser->file_count);
browser->directories = dir_list(browser->directory, 1, &browser->dir_count);
}
}
static void
file_browser_free(struct file_browser *browser)
{
if (browser->files)
dir_free_list(browser->files, browser->file_count);
if (browser->directories)
dir_free_list(browser->directories, browser->dir_count);
browser->files = NULL;
browser->directories = NULL;
memset(browser, 0, sizeof(*browser));
}
static int
file_browser_run(struct file_browser *browser, struct nk_context *ctx)
{
int ret = 0;
struct media *media = browser->media;
struct nk_rect total_space;
if (nk_begin(ctx, "File Browser", nk_rect(50, 50, 800, 600),
NK_WINDOW_BORDER|NK_WINDOW_NO_SCROLLBAR|NK_WINDOW_MOVABLE))
{
static float ratio[] = {0.25f, NK_UNDEFINED};
float spacing_x = ctx->style.window.spacing.x;
/* output path directory selector in the menubar */
ctx->style.window.spacing.x = 0;
nk_menubar_begin(ctx);
{
char *d = browser->directory;
char *begin = d + 1;
nk_layout_row_dynamic(ctx, 25, 6);
while (*d++) {
if (*d == '/') {
*d = '\0';
if (nk_button_label(ctx, begin)) {
*d++ = '/'; *d = '\0';
file_browser_reload_directory_content(browser, browser->directory);
break;
}
*d = '/';
begin = d + 1;
}
}
}
nk_menubar_end(ctx);
ctx->style.window.spacing.x = spacing_x;
/* window layout */
total_space = nk_window_get_content_region(ctx);
nk_layout_row(ctx, NK_DYNAMIC, total_space.h, 2, ratio);
nk_group_begin(ctx, "Special", NK_WINDOW_NO_SCROLLBAR);
{
struct nk_image home = media->icons.home;
struct nk_image desktop = media->icons.desktop;
struct nk_image computer = media->icons.computer;
nk_layout_row_dynamic(ctx, 40, 1);
if (nk_button_image_label(ctx, home, "home", NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, browser->home);
if (nk_button_image_label(ctx,desktop,"desktop",NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, browser->desktop);
if (nk_button_image_label(ctx,computer,"computer",NK_TEXT_CENTERED))
file_browser_reload_directory_content(browser, "/");
nk_group_end(ctx);
}
/* output directory content window */
nk_group_begin(ctx, "Content", 0);
{
int index = -1;
size_t i = 0, j = 0, k = 0;
size_t rows = 0, cols = 0;
size_t count = browser->dir_count + browser->file_count;
cols = 4;
rows = count / cols;
for (i = 0; i <= rows; i += 1) {
{size_t n = j + cols;
nk_layout_row_dynamic(ctx, 135, (int)cols);
for (; j < count && j < n; ++j) {
/* draw one row of icons */
if (j < browser->dir_count) {
/* draw and execute directory buttons */
if (nk_button_image(ctx,media->icons.directory))
index = (int)j;
} else {
/* draw and execute files buttons */
struct nk_image *icon;
size_t fileIndex = ((size_t)j - browser->dir_count);
icon = media_icon_for_file(media,browser->files[fileIndex]);
if (nk_button_image(ctx, *icon)) {
strncpy(browser->file, browser->directory, MAX_PATH_LEN);
n = strlen(browser->file);
strncpy(browser->file + n, browser->files[fileIndex], MAX_PATH_LEN - n);
ret = 1;
}
}
}}
{size_t n = k + cols;
nk_layout_row_dynamic(ctx, 20, (int)cols);
for (; k < count && k < n; k++) {
/* draw one row of labels */
if (k < browser->dir_count) {
nk_label(ctx, browser->directories[k], NK_TEXT_CENTERED);
} else {
size_t t = k-browser->dir_count;
nk_label(ctx,browser->files[t],NK_TEXT_CENTERED);
}
}}
}
if (index != -1) {
size_t n = strlen(browser->directory);
strncpy(browser->directory + n, browser->directories[index], MAX_PATH_LEN - n);
n = strlen(browser->directory);
if (n < MAX_PATH_LEN - 1) {
browser->directory[n] = '/';
browser->directory[n+1] = '\0';
}
file_browser_reload_directory_content(browser, browser->directory);
}
nk_group_end(ctx);
}
}
nk_end(ctx);
return ret;
}
/* ===============================================================
*
* DEVICE
*
* ===============================================================*/
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
static struct nk_image
icon_load(const char *filename)
{
int x,y,n;
GLuint tex;
unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
if (!data) die("[SDL]: failed to load image: %s", filename);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
stbi_image_free(data);
return nk_image_id((int)tex);
}
static void
device_init(struct device *dev)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
static void
device_upload_atlas(struct device *dev, const void *image, int width, int height)
{
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
static void
device_shutdown(struct device *dev)
{
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
static void
device_draw(struct device *dev, struct nk_context *ctx, int width, int height,
struct nk_vec2 scale, enum nk_anti_aliasing AA)
{
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, MAX_VERTEX_MEMORY, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, MAX_ELEMENT_MEMORY, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, MAX_VERTEX_MEMORY);
nk_buffer_init_fixed(&ebuf, elements, MAX_ELEMENT_MEMORY);
nk_convert(ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, ctx, &dev->cmds) {
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * scale.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
(GLint)(cmd->clip_rect.w * scale.x),
(GLint)(cmd->clip_rect.h * scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
/* glfw callbacks (I don't know if there is a easier way to access text and scroll )*/
static void error_callback(int e, const char *d){printf("Error %d: %s\n", e, d);}
static void text_input(GLFWwindow *win, unsigned int codepoint)
{nk_input_unicode((struct nk_context*)glfwGetWindowUserPointer(win), codepoint);}
static void scroll_input(GLFWwindow *win, double _, double yoff)
{UNUSED(_);nk_input_scroll((struct nk_context*)glfwGetWindowUserPointer(win), (float)yoff);}
int main(int argc, char *argv[])
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
int display_width = 0, display_height = 0;
/* GUI */
struct device device;
struct nk_context ctx;
struct nk_font *font;
struct nk_font_atlas atlas;
struct file_browser browser;
struct media media;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwSetWindowUserPointer(win, &ctx);
glfwSetCharCallback(win, text_input);
glfwSetScrollCallback(win, scroll_input);
/* OpenGL */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
{/* GUI */
device_init(&device);
{const void *image; int w, h;
const char *font_path = (argc > 1) ? argv[1]: 0;
nk_font_atlas_init_default(&atlas);
nk_font_atlas_begin(&atlas);
if (font_path) font = nk_font_atlas_add_from_file(&atlas, font_path, 13.0f, NULL);
else font = nk_font_atlas_add_default(&atlas, 13.0f, NULL);
image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
device_upload_atlas(&device, image, w, h);
nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null);}
nk_init_default(&ctx, &font->handle);}
/* icons */
glEnable(GL_TEXTURE_2D);
media.icons.home = icon_load("../icon/home.png");
media.icons.directory = icon_load("../icon/directory.png");
media.icons.computer = icon_load("../icon/computer.png");
media.icons.desktop = icon_load("../icon/desktop.png");
media.icons.default_file = icon_load("../icon/default.png");
media.icons.text_file = icon_load("../icon/text.png");
media.icons.music_file = icon_load("../icon/music.png");
media.icons.font_file = icon_load("../icon/font.png");
media.icons.img_file = icon_load("../icon/img.png");
media.icons.movie_file = icon_load("../icon/movie.png");
media_init(&media);
file_browser_init(&browser, &media);
while (!glfwWindowShouldClose(win))
{
/* High DPI displays */
struct nk_vec2 scale;
glfwGetWindowSize(win, &width, &height);
glfwGetFramebufferSize(win, &display_width, &display_height);
scale.x = (float)display_width/(float)width;
scale.y = (float)display_height/(float)height;
/* Input */
{double x, y;
nk_input_begin(&ctx);
glfwPollEvents();
nk_input_key(&ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(&ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_P) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_SHIFT, 1);
} else {
nk_input_key(&ctx, NK_KEY_COPY, 0);
nk_input_key(&ctx, NK_KEY_PASTE, 0);
nk_input_key(&ctx, NK_KEY_CUT, 0);
nk_input_key(&ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(&ctx, (int)x, (int)y);
nk_input_button(&ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_end(&ctx);}
/* GUI */
file_browser_run(&browser, &ctx);
/* Draw */
glViewport(0, 0, display_width, display_height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
device_draw(&device, &ctx, width, height, scale, NK_ANTI_ALIASING_ON);
glfwSwapBuffers(win);
}
glDeleteTextures(1,(const GLuint*)&media.icons.home.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.directory.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.computer.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.desktop.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.default_file.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.text_file.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.music_file.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.font_file.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.img_file.handle.id);
glDeleteTextures(1,(const GLuint*)&media.icons.movie_file.handle.id);
file_browser_free(&browser);
nk_font_atlas_clear(&atlas);
nk_free(&ctx);
device_shutdown(&device);
glfwTerminate();
return 0;
}

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/* nuklear - v1.05 - public domain */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include <limits.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_FONT_BAKING
#define NK_INCLUDE_DEFAULT_FONT
#define NK_IMPLEMENTATION
#include "../nuklear.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
/* macros */
#define WINDOW_WIDTH 1200
#define WINDOW_HEIGHT 800
#define MAX_VERTEX_MEMORY 512 * 1024
#define MAX_ELEMENT_MEMORY 128 * 1024
#define UNUSED(a) (void)a
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a)/sizeof(a)[0])
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
struct media {
GLint skin;
struct nk_image menu;
struct nk_image check;
struct nk_image check_cursor;
struct nk_image option;
struct nk_image option_cursor;
struct nk_image header;
struct nk_image window;
struct nk_image scrollbar_inc_button;
struct nk_image scrollbar_inc_button_hover;
struct nk_image scrollbar_dec_button;
struct nk_image scrollbar_dec_button_hover;
struct nk_image button;
struct nk_image button_hover;
struct nk_image button_active;
struct nk_image tab_minimize;
struct nk_image tab_maximize;
struct nk_image slider;
struct nk_image slider_hover;
struct nk_image slider_active;
};
/* ===============================================================
*
* DEVICE
*
* ===============================================================*/
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
struct device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
GLuint font_tex;
};
static void
die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
static GLuint
image_load(const char *filename)
{
int x,y,n;
GLuint tex;
unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
if (!data) die("failed to load image: %s", filename);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, x, y, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
glGenerateMipmap(GL_TEXTURE_2D);
stbi_image_free(data);
return tex;
}
static void
device_init(struct device *dev)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
static void
device_upload_atlas(struct device *dev, const void *image, int width, int height)
{
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
static void
device_shutdown(struct device *dev)
{
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
static void
device_draw(struct device *dev, struct nk_context *ctx, int width, int height,
struct nk_vec2 scale, enum nk_anti_aliasing AA)
{
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)width;
ortho[1][1] /= (GLfloat)height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, MAX_VERTEX_MEMORY, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, MAX_ELEMENT_MEMORY, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
{
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* setup buffers to load vertices and elements */
{struct nk_buffer vbuf, ebuf;
nk_buffer_init_fixed(&vbuf, vertices, MAX_VERTEX_MEMORY);
nk_buffer_init_fixed(&ebuf, elements, MAX_ELEMENT_MEMORY);
nk_convert(ctx, &dev->cmds, &vbuf, &ebuf, &config);}
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
nk_draw_foreach(cmd, ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * scale.x),
(GLint)((height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * scale.y),
(GLint)(cmd->clip_rect.w * scale.x),
(GLint)(cmd->clip_rect.h * scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(ctx);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
/* glfw callbacks (I don't know if there is a easier way to access text and scroll )*/
static void error_callback(int e, const char *d){printf("Error %d: %s\n", e, d);}
static void text_input(GLFWwindow *win, unsigned int codepoint)
{nk_input_unicode((struct nk_context*)glfwGetWindowUserPointer(win), codepoint);}
static void scroll_input(GLFWwindow *win, double _, double yoff)
{UNUSED(_);nk_input_scroll((struct nk_context*)glfwGetWindowUserPointer(win), (float)yoff);}
int main(int argc, char *argv[])
{
/* Platform */
static GLFWwindow *win;
int width = 0, height = 0;
int display_width=0, display_height=0;
/* GUI */
struct device device;
struct nk_font_atlas atlas;
struct media media;
struct nk_context ctx;
struct nk_font *font;
/* GLFW */
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
fprintf(stdout, "[GFLW] failed to init!\n");
exit(1);
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
glfwMakeContextCurrent(win);
glfwSetWindowUserPointer(win, &ctx);
glfwSetCharCallback(win, text_input);
glfwSetScrollCallback(win, scroll_input);
glfwGetWindowSize(win, &width, &height);
glfwGetFramebufferSize(win, &display_width, &display_height);
/* OpenGL */
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glewExperimental = 1;
if (glewInit() != GLEW_OK) {
fprintf(stderr, "Failed to setup GLEW\n");
exit(1);
}
/* GUI */
{device_init(&device);
{const void *image; int w, h;
const char *font_path = (argc > 1) ? argv[1]: 0;
nk_font_atlas_init_default(&atlas);
nk_font_atlas_begin(&atlas);
if (font_path) font = nk_font_atlas_add_from_file(&atlas, font_path, 13.0f, NULL);
else font = nk_font_atlas_add_default(&atlas, 13.0f, NULL);
image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
device_upload_atlas(&device, image, w, h);
nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null);}
nk_init_default(&ctx, &font->handle);}
{ /* skin */
glEnable(GL_TEXTURE_2D);
media.skin = image_load("../skins/gwen.png");
media.check = nk_subimage_id(media.skin, 512,512, nk_rect(464,32,15,15));
media.check_cursor = nk_subimage_id(media.skin, 512,512, nk_rect(450,34,11,11));
media.option = nk_subimage_id(media.skin, 512,512, nk_rect(464,64,15,15));
media.option_cursor = nk_subimage_id(media.skin, 512,512, nk_rect(451,67,9,9));
media.header = nk_subimage_id(media.skin, 512,512, nk_rect(128,0,127,24));
media.window = nk_subimage_id(media.skin, 512,512, nk_rect(128,23,127,104));
media.scrollbar_inc_button = nk_subimage_id(media.skin, 512,512, nk_rect(464,256,15,15));
media.scrollbar_inc_button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(464,320,15,15));
media.scrollbar_dec_button = nk_subimage_id(media.skin, 512,512, nk_rect(464,224,15,15));
media.scrollbar_dec_button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(464,288,15,15));
media.button = nk_subimage_id(media.skin, 512,512, nk_rect(384,336,127,31));
media.button_hover = nk_subimage_id(media.skin, 512,512, nk_rect(384,368,127,31));
media.button_active = nk_subimage_id(media.skin, 512,512, nk_rect(384,400,127,31));
media.tab_minimize = nk_subimage_id(media.skin, 512,512, nk_rect(451, 99, 9, 9));
media.tab_maximize = nk_subimage_id(media.skin, 512,512, nk_rect(467,99,9,9));
media.slider = nk_subimage_id(media.skin, 512,512, nk_rect(418,33,11,14));
media.slider_hover = nk_subimage_id(media.skin, 512,512, nk_rect(418,49,11,14));
media.slider_active = nk_subimage_id(media.skin, 512,512, nk_rect(418,64,11,14));
/* window */
ctx.style.window.background = nk_rgb(204,204,204);
ctx.style.window.fixed_background = nk_style_item_image(media.window);
ctx.style.window.border_color = nk_rgb(67,67,67);
ctx.style.window.combo_border_color = nk_rgb(67,67,67);
ctx.style.window.contextual_border_color = nk_rgb(67,67,67);
ctx.style.window.menu_border_color = nk_rgb(67,67,67);
ctx.style.window.group_border_color = nk_rgb(67,67,67);
ctx.style.window.tooltip_border_color = nk_rgb(67,67,67);
ctx.style.window.scrollbar_size = nk_vec2(16,16);
ctx.style.window.border_color = nk_rgba(0,0,0,0);
ctx.style.window.padding = nk_vec2(8,4);
ctx.style.window.border = 3;
/* window header */
ctx.style.window.header;
ctx.style.window.header.normal = nk_style_item_image(media.header);
ctx.style.window.header.hover = nk_style_item_image(media.header);
ctx.style.window.header.active = nk_style_item_image(media.header);
ctx.style.window.header.label_normal = nk_rgb(95,95,95);
ctx.style.window.header.label_hover = nk_rgb(95,95,95);
ctx.style.window.header.label_active = nk_rgb(95,95,95);
/* scrollbar */
ctx.style.scrollv.normal = nk_style_item_color(nk_rgb(184,184,184));
ctx.style.scrollv.hover = nk_style_item_color(nk_rgb(184,184,184));
ctx.style.scrollv.active = nk_style_item_color(nk_rgb(184,184,184));
ctx.style.scrollv.cursor_normal = nk_style_item_color(nk_rgb(220,220,220));
ctx.style.scrollv.cursor_hover = nk_style_item_color(nk_rgb(235,235,235));
ctx.style.scrollv.cursor_active = nk_style_item_color(nk_rgb(99,202,255));
ctx.style.scrollv.dec_symbol = NK_SYMBOL_NONE;
ctx.style.scrollv.inc_symbol = NK_SYMBOL_NONE;
ctx.style.scrollv.show_buttons = nk_true;
ctx.style.scrollv.border_color = nk_rgb(81,81,81);
ctx.style.scrollv.cursor_border_color = nk_rgb(81,81,81);
ctx.style.scrollv.border = 1;
ctx.style.scrollv.rounding = 0;
ctx.style.scrollv.border_cursor = 1;
ctx.style.scrollv.rounding_cursor = 2;
/* scrollbar buttons */
ctx.style.scrollv.inc_button.normal = nk_style_item_image(media.scrollbar_inc_button);
ctx.style.scrollv.inc_button.hover = nk_style_item_image(media.scrollbar_inc_button_hover);
ctx.style.scrollv.inc_button.active = nk_style_item_image(media.scrollbar_inc_button_hover);
ctx.style.scrollv.inc_button.border_color = nk_rgba(0,0,0,0);
ctx.style.scrollv.inc_button.text_background = nk_rgba(0,0,0,0);
ctx.style.scrollv.inc_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.scrollv.inc_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.scrollv.inc_button.text_active = nk_rgba(0,0,0,0);
ctx.style.scrollv.inc_button.border = 0.0f;
ctx.style.scrollv.dec_button.normal = nk_style_item_image(media.scrollbar_dec_button);
ctx.style.scrollv.dec_button.hover = nk_style_item_image(media.scrollbar_dec_button_hover);
ctx.style.scrollv.dec_button.active = nk_style_item_image(media.scrollbar_dec_button_hover);
ctx.style.scrollv.dec_button.border_color = nk_rgba(0,0,0,0);
ctx.style.scrollv.dec_button.text_background = nk_rgba(0,0,0,0);
ctx.style.scrollv.dec_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.scrollv.dec_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.scrollv.dec_button.text_active = nk_rgba(0,0,0,0);
ctx.style.scrollv.dec_button.border = 0.0f;
/* checkbox toggle */
{struct nk_style_toggle *toggle;
toggle = &ctx.style.checkbox;
toggle->normal = nk_style_item_image(media.check);
toggle->hover = nk_style_item_image(media.check);
toggle->active = nk_style_item_image(media.check);
toggle->cursor_normal = nk_style_item_image(media.check_cursor);
toggle->cursor_hover = nk_style_item_image(media.check_cursor);
toggle->text_normal = nk_rgb(95,95,95);
toggle->text_hover = nk_rgb(95,95,95);
toggle->text_active = nk_rgb(95,95,95);}
/* option toggle */
{struct nk_style_toggle *toggle;
toggle = &ctx.style.option;
toggle->normal = nk_style_item_image(media.option);
toggle->hover = nk_style_item_image(media.option);
toggle->active = nk_style_item_image(media.option);
toggle->cursor_normal = nk_style_item_image(media.option_cursor);
toggle->cursor_hover = nk_style_item_image(media.option_cursor);
toggle->text_normal = nk_rgb(95,95,95);
toggle->text_hover = nk_rgb(95,95,95);
toggle->text_active = nk_rgb(95,95,95);}
/* default button */
ctx.style.button.normal = nk_style_item_image(media.button);
ctx.style.button.hover = nk_style_item_image(media.button_hover);
ctx.style.button.active = nk_style_item_image(media.button_active);
ctx.style.button.border_color = nk_rgba(0,0,0,0);
ctx.style.button.text_background = nk_rgba(0,0,0,0);
ctx.style.button.text_normal = nk_rgb(95,95,95);
ctx.style.button.text_hover = nk_rgb(95,95,95);
ctx.style.button.text_active = nk_rgb(95,95,95);
/* default text */
ctx.style.text.color = nk_rgb(95,95,95);
/* contextual button */
ctx.style.contextual_button.normal = nk_style_item_color(nk_rgb(206,206,206));
ctx.style.contextual_button.hover = nk_style_item_color(nk_rgb(229,229,229));
ctx.style.contextual_button.active = nk_style_item_color(nk_rgb(99,202,255));
ctx.style.contextual_button.border_color = nk_rgba(0,0,0,0);
ctx.style.contextual_button.text_background = nk_rgba(0,0,0,0);
ctx.style.contextual_button.text_normal = nk_rgb(95,95,95);
ctx.style.contextual_button.text_hover = nk_rgb(95,95,95);
ctx.style.contextual_button.text_active = nk_rgb(95,95,95);
/* menu button */
ctx.style.menu_button.normal = nk_style_item_color(nk_rgb(206,206,206));
ctx.style.menu_button.hover = nk_style_item_color(nk_rgb(229,229,229));
ctx.style.menu_button.active = nk_style_item_color(nk_rgb(99,202,255));
ctx.style.menu_button.border_color = nk_rgba(0,0,0,0);
ctx.style.menu_button.text_background = nk_rgba(0,0,0,0);
ctx.style.menu_button.text_normal = nk_rgb(95,95,95);
ctx.style.menu_button.text_hover = nk_rgb(95,95,95);
ctx.style.menu_button.text_active = nk_rgb(95,95,95);
/* tree */
ctx.style.tab.text = nk_rgb(95,95,95);
ctx.style.tab.tab_minimize_button.normal = nk_style_item_image(media.tab_minimize);
ctx.style.tab.tab_minimize_button.hover = nk_style_item_image(media.tab_minimize);
ctx.style.tab.tab_minimize_button.active = nk_style_item_image(media.tab_minimize);
ctx.style.tab.tab_minimize_button.text_background = nk_rgba(0,0,0,0);
ctx.style.tab.tab_minimize_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.tab.tab_minimize_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.tab.tab_minimize_button.text_active = nk_rgba(0,0,0,0);
ctx.style.tab.tab_maximize_button.normal = nk_style_item_image(media.tab_maximize);
ctx.style.tab.tab_maximize_button.hover = nk_style_item_image(media.tab_maximize);
ctx.style.tab.tab_maximize_button.active = nk_style_item_image(media.tab_maximize);
ctx.style.tab.tab_maximize_button.text_background = nk_rgba(0,0,0,0);
ctx.style.tab.tab_maximize_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.tab.tab_maximize_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.tab.tab_maximize_button.text_active = nk_rgba(0,0,0,0);
ctx.style.tab.node_minimize_button.normal = nk_style_item_image(media.tab_minimize);
ctx.style.tab.node_minimize_button.hover = nk_style_item_image(media.tab_minimize);
ctx.style.tab.node_minimize_button.active = nk_style_item_image(media.tab_minimize);
ctx.style.tab.node_minimize_button.text_background = nk_rgba(0,0,0,0);
ctx.style.tab.node_minimize_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.tab.node_minimize_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.tab.node_minimize_button.text_active = nk_rgba(0,0,0,0);
ctx.style.tab.node_maximize_button.normal = nk_style_item_image(media.tab_maximize);
ctx.style.tab.node_maximize_button.hover = nk_style_item_image(media.tab_maximize);
ctx.style.tab.node_maximize_button.active = nk_style_item_image(media.tab_maximize);
ctx.style.tab.node_maximize_button.text_background = nk_rgba(0,0,0,0);
ctx.style.tab.node_maximize_button.text_normal = nk_rgba(0,0,0,0);
ctx.style.tab.node_maximize_button.text_hover = nk_rgba(0,0,0,0);
ctx.style.tab.node_maximize_button.text_active = nk_rgba(0,0,0,0);
/* selectable */
ctx.style.selectable.normal = nk_style_item_color(nk_rgb(206,206,206));
ctx.style.selectable.hover = nk_style_item_color(nk_rgb(206,206,206));
ctx.style.selectable.pressed = nk_style_item_color(nk_rgb(206,206,206));
ctx.style.selectable.normal_active = nk_style_item_color(nk_rgb(185,205,248));
ctx.style.selectable.hover_active = nk_style_item_color(nk_rgb(185,205,248));
ctx.style.selectable.pressed_active = nk_style_item_color(nk_rgb(185,205,248));
ctx.style.selectable.text_normal = nk_rgb(95,95,95);
ctx.style.selectable.text_hover = nk_rgb(95,95,95);
ctx.style.selectable.text_pressed = nk_rgb(95,95,95);
ctx.style.selectable.text_normal_active = nk_rgb(95,95,95);
ctx.style.selectable.text_hover_active = nk_rgb(95,95,95);
ctx.style.selectable.text_pressed_active = nk_rgb(95,95,95);
/* slider */
ctx.style.slider.normal = nk_style_item_hide();
ctx.style.slider.hover = nk_style_item_hide();
ctx.style.slider.active = nk_style_item_hide();
ctx.style.slider.bar_normal = nk_rgb(156,156,156);
ctx.style.slider.bar_hover = nk_rgb(156,156,156);
ctx.style.slider.bar_active = nk_rgb(156,156,156);
ctx.style.slider.bar_filled = nk_rgb(156,156,156);
ctx.style.slider.cursor_normal = nk_style_item_image(media.slider);
ctx.style.slider.cursor_hover = nk_style_item_image(media.slider_hover);
ctx.style.slider.cursor_active = nk_style_item_image(media.slider_active);
ctx.style.slider.cursor_size = nk_vec2(16.5f,21);
ctx.style.slider.bar_height = 1;
/* progressbar */
ctx.style.progress.normal = nk_style_item_color(nk_rgb(231,231,231));
ctx.style.progress.hover = nk_style_item_color(nk_rgb(231,231,231));
ctx.style.progress.active = nk_style_item_color(nk_rgb(231,231,231));
ctx.style.progress.cursor_normal = nk_style_item_color(nk_rgb(63,242,93));
ctx.style.progress.cursor_hover = nk_style_item_color(nk_rgb(63,242,93));
ctx.style.progress.cursor_active = nk_style_item_color(nk_rgb(63,242,93));
ctx.style.progress.border_color = nk_rgb(114,116,115);
ctx.style.progress.padding = nk_vec2(0,0);
ctx.style.progress.border = 2;
ctx.style.progress.rounding = 1;
/* combo */
ctx.style.combo.normal = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.hover = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.active = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.border_color = nk_rgb(95,95,95);
ctx.style.combo.label_normal = nk_rgb(95,95,95);
ctx.style.combo.label_hover = nk_rgb(95,95,95);
ctx.style.combo.label_active = nk_rgb(95,95,95);
ctx.style.combo.border = 1;
ctx.style.combo.rounding = 1;
/* combo button */
ctx.style.combo.button.normal = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.button.hover = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.button.active = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.combo.button.text_background = nk_rgb(216,216,216);
ctx.style.combo.button.text_normal = nk_rgb(95,95,95);
ctx.style.combo.button.text_hover = nk_rgb(95,95,95);
ctx.style.combo.button.text_active = nk_rgb(95,95,95);
/* property */
ctx.style.property.normal = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.hover = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.active = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.border_color = nk_rgb(81,81,81);
ctx.style.property.label_normal = nk_rgb(95,95,95);
ctx.style.property.label_hover = nk_rgb(95,95,95);
ctx.style.property.label_active = nk_rgb(95,95,95);
ctx.style.property.sym_left = NK_SYMBOL_TRIANGLE_LEFT;
ctx.style.property.sym_right = NK_SYMBOL_TRIANGLE_RIGHT;
ctx.style.property.rounding = 10;
ctx.style.property.border = 1;
/* edit */
ctx.style.edit.normal = nk_style_item_color(nk_rgb(240,240,240));
ctx.style.edit.hover = nk_style_item_color(nk_rgb(240,240,240));
ctx.style.edit.active = nk_style_item_color(nk_rgb(240,240,240));
ctx.style.edit.border_color = nk_rgb(62,62,62);
ctx.style.edit.cursor_normal = nk_rgb(99,202,255);
ctx.style.edit.cursor_hover = nk_rgb(99,202,255);
ctx.style.edit.cursor_text_normal = nk_rgb(95,95,95);
ctx.style.edit.cursor_text_hover = nk_rgb(95,95,95);
ctx.style.edit.text_normal = nk_rgb(95,95,95);
ctx.style.edit.text_hover = nk_rgb(95,95,95);
ctx.style.edit.text_active = nk_rgb(95,95,95);
ctx.style.edit.selected_normal = nk_rgb(99,202,255);
ctx.style.edit.selected_hover = nk_rgb(99,202,255);
ctx.style.edit.selected_text_normal = nk_rgb(95,95,95);
ctx.style.edit.selected_text_hover = nk_rgb(95,95,95);
ctx.style.edit.border = 1;
ctx.style.edit.rounding = 2;
/* property buttons */
ctx.style.property.dec_button.normal = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.dec_button.hover = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.dec_button.active = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.dec_button.text_background = nk_rgba(0,0,0,0);
ctx.style.property.dec_button.text_normal = nk_rgb(95,95,95);
ctx.style.property.dec_button.text_hover = nk_rgb(95,95,95);
ctx.style.property.dec_button.text_active = nk_rgb(95,95,95);
ctx.style.property.inc_button = ctx.style.property.dec_button;
/* property edit */
ctx.style.property.edit.normal = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.edit.hover = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.edit.active = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.property.edit.border_color = nk_rgba(0,0,0,0);
ctx.style.property.edit.cursor_normal = nk_rgb(95,95,95);
ctx.style.property.edit.cursor_hover = nk_rgb(95,95,95);
ctx.style.property.edit.cursor_text_normal = nk_rgb(216,216,216);
ctx.style.property.edit.cursor_text_hover = nk_rgb(216,216,216);
ctx.style.property.edit.text_normal = nk_rgb(95,95,95);
ctx.style.property.edit.text_hover = nk_rgb(95,95,95);
ctx.style.property.edit.text_active = nk_rgb(95,95,95);
ctx.style.property.edit.selected_normal = nk_rgb(95,95,95);
ctx.style.property.edit.selected_hover = nk_rgb(95,95,95);
ctx.style.property.edit.selected_text_normal = nk_rgb(216,216,216);
ctx.style.property.edit.selected_text_hover = nk_rgb(216,216,216);
/* chart */
ctx.style.chart.background = nk_style_item_color(nk_rgb(216,216,216));
ctx.style.chart.border_color = nk_rgb(81,81,81);
ctx.style.chart.color = nk_rgb(95,95,95);
ctx.style.chart.selected_color = nk_rgb(255,0,0);
ctx.style.chart.border = 1;
}
while (!glfwWindowShouldClose(win))
{
/* High DPI displays */
struct nk_vec2 scale;
glfwGetWindowSize(win, &width, &height);
glfwGetFramebufferSize(win, &display_width, &display_height);
scale.x = (float)display_width/(float)width;
scale.y = (float)display_height/(float)height;
/* Input */
{double x, y;
nk_input_begin(&ctx);
glfwPollEvents();
nk_input_key(&ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(&ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_P) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
nk_input_key(&ctx, NK_KEY_SHIFT, 1);
} else {
nk_input_key(&ctx, NK_KEY_COPY, 0);
nk_input_key(&ctx, NK_KEY_PASTE, 0);
nk_input_key(&ctx, NK_KEY_CUT, 0);
nk_input_key(&ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(&ctx, (int)x, (int)y);
nk_input_button(&ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(&ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_end(&ctx);}
/* GUI */
{struct nk_panel layout, tab;
if (nk_begin(&ctx, "Demo", nk_rect(50, 50, 300, 400),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_TITLE))
{
int i;
float id;
static int slider = 10;
static int field_len;
static nk_size prog_value = 60;
static int current_weapon = 0;
static char field_buffer[64];
static float pos;
static const char *weapons[] = {"Fist","Pistol","Shotgun","Plasma","BFG"};
const float step = (2*3.141592654f) / 32;
nk_layout_row_static(&ctx, 30, 120, 1);
if (nk_button_label(&ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(&ctx, 20, 1);
nk_label(&ctx, "Label", NK_TEXT_LEFT);
nk_layout_row_dynamic(&ctx, 30, 2);
nk_check_label(&ctx, "inactive", 0);
nk_check_label(&ctx, "active", 1);
nk_option_label(&ctx, "active", 1);
nk_option_label(&ctx, "inactive", 0);
nk_layout_row_dynamic(&ctx, 30, 1);
nk_slider_int(&ctx, 0, &slider, 16, 1);
nk_layout_row_dynamic(&ctx, 20, 1);
nk_progress(&ctx, &prog_value, 100, NK_MODIFIABLE);
nk_layout_row_dynamic(&ctx, 25, 1);
nk_edit_string(&ctx, NK_EDIT_FIELD, field_buffer, &field_len, 64, nk_filter_default);
nk_property_float(&ctx, "#X:", -1024.0f, &pos, 1024.0f, 1, 1);
current_weapon = nk_combo(&ctx, weapons, LEN(weapons), current_weapon, 25, nk_vec2(nk_widget_width(&ctx),200));
nk_layout_row_dynamic(&ctx, 100, 1);
if (nk_chart_begin_colored(&ctx, NK_CHART_LINES, nk_rgb(255,0,0), nk_rgb(150,0,0), 32, 0.0f, 1.0f)) {
nk_chart_add_slot_colored(&ctx, NK_CHART_LINES, nk_rgb(0,0,255), nk_rgb(0,0,150),32, -1.0f, 1.0f);
nk_chart_add_slot_colored(&ctx, NK_CHART_LINES, nk_rgb(0,255,0), nk_rgb(0,150,0), 32, -1.0f, 1.0f);
for (id = 0, i = 0; i < 32; ++i) {
nk_chart_push_slot(&ctx, (float)fabs(sin(id)), 0);
nk_chart_push_slot(&ctx, (float)cos(id), 1);
nk_chart_push_slot(&ctx, (float)sin(id), 2);
id += step;
}
}
nk_chart_end(&ctx);
nk_layout_row_dynamic(&ctx, 250, 1);
if (nk_group_begin(&ctx, "Standard", NK_WINDOW_BORDER|NK_WINDOW_BORDER))
{
if (nk_tree_push(&ctx, NK_TREE_NODE, "Window", NK_MAXIMIZED)) {
static int selected[8];
if (nk_tree_push(&ctx, NK_TREE_NODE, "Next", NK_MAXIMIZED)) {
nk_layout_row_dynamic(&ctx, 20, 1);
for (i = 0; i < 4; ++i)
nk_selectable_label(&ctx, (selected[i]) ? "Selected": "Unselected", NK_TEXT_LEFT, &selected[i]);
nk_tree_pop(&ctx);
}
if (nk_tree_push(&ctx, NK_TREE_NODE, "Previous", NK_MAXIMIZED)) {
nk_layout_row_dynamic(&ctx, 20, 1);
for (i = 4; i < 8; ++i)
nk_selectable_label(&ctx, (selected[i]) ? "Selected": "Unselected", NK_TEXT_LEFT, &selected[i]);
nk_tree_pop(&ctx);
}
nk_tree_pop(&ctx);
}
nk_group_end(&ctx);
}
}
nk_end(&ctx);}
/* Draw */
glViewport(0, 0, display_width, display_height);
glClear(GL_COLOR_BUFFER_BIT);
glClearColor(0.5882, 0.6666, 0.6666, 1.0f);
device_draw(&device, &ctx, width, height, scale, NK_ANTI_ALIASING_ON);
glfwSwapBuffers(win);
}
glDeleteTextures(1,(const GLuint*)&media.skin);
nk_font_atlas_clear(&atlas);
nk_free(&ctx);
device_shutdown(&device);
glfwTerminate();
return 0;
}

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{
"name": "nuklear",
"version": "1.0.0",
"repo": "vurtun/nuklear",
"description": "A small ANSI C gui toolkit",
"keywords": ["gl", "ui", "toolkit"],
"src": ["nuklear.h"]
}