mirror of https://github.com/PCSX2/pcsx2.git
377 lines
8.9 KiB
C
377 lines
8.9 KiB
C
/* A simple program to test the Input Method support in the SDL library (1.3+) */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#ifdef HAVE_SDL_TTF
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#include "SDL_ttf.h"
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#endif
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#define DEFAULT_PTSIZE 30
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#define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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#define MAX_TEXT_LENGTH 256
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SDL_Surface *screen;
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#ifdef HAVE_SDL_TTF
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TTF_Font *font;
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#endif
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SDL_Rect textRect, markedRect;
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Uint32 lineColor, backColor;
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SDL_Color textColor = { 0, 0, 0 };
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char text[MAX_TEXT_LENGTH], markedText[SDL_TEXTEDITINGEVENT_TEXT_SIZE];
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int cursor = 0;
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size_t utf8_length(unsigned char c)
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{
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c = (unsigned char)(0xff & c);
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if (c < 0x80)
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return 1;
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else if ((c >> 5) ==0x6)
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return 2;
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else if ((c >> 4) == 0xe)
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return 3;
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else if ((c >> 3) == 0x1e)
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return 4;
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else
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return 0;
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}
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char *utf8_next(char *p)
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{
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size_t len = utf8_length(*p);
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size_t i = 0;
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if (!len)
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return 0;
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for (; i < len; ++i)
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{
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++p;
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if (!*p)
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return 0;
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}
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return p;
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}
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char *utf8_advance(char *p, size_t distance)
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{
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size_t i = 0;
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for (; i < distance && p; ++i)
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{
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p = utf8_next(p);
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}
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return p;
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}
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void usage()
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{
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printf("usage: testime [--font fontfile] [--fullscreen]\n");
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exit(0);
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}
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void InitVideo(int argc, char *argv[])
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{
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int width = 640, height = 480;
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int flags = SDL_HWSURFACE;
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const char *fontname = DEFAULT_FONT;
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int fullscreen = 0;
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for (argc--, argv++; argc > 0; argc--, argv++)
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{
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if (strcmp(argv[0], "--help") == 0)
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usage();
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else if (strcmp(argv[0], "--fullscreen") == 0)
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fullscreen = 1;
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else if (strcmp(argv[0], "--font") == 0)
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{
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argc--;
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argv++;
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if (argc > 0)
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fontname = argv[0];
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else
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usage();
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}
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}
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SDL_setenv("SDL_VIDEO_WINDOW_POS", "center", 1);
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if (SDL_Init(SDL_INIT_VIDEO) < 0)
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{
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fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
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exit(-1);
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}
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#ifdef HAVE_SDL_TTF
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/* Initialize fonts */
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TTF_Init();
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font = TTF_OpenFont(fontname, DEFAULT_PTSIZE);
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if (! font)
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{
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fprintf(stderr, "Failed to find font: %s\n", TTF_GetError());
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exit(-1);
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}
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#endif
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printf("Using font: %s\n", fontname);
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atexit(SDL_Quit);
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if (fullscreen)
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{
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/* Use the desktop mode */
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width = 0;
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height = 0;
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flags |= SDL_FULLSCREEN;
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}
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/* Create window */
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screen = SDL_SetVideoMode(width, height, 32, flags);
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if (screen == NULL)
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{
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fprintf(stderr, "Unable to set %dx%d video: %s\n",
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width, height, SDL_GetError());
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exit(-1);
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}
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}
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void CleanupVideo()
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{
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SDL_StopTextInput();
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#ifdef HAVE_SDL_TTF
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TTF_CloseFont(font);
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TTF_Quit();
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#endif
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}
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void InitInput()
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{
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backColor = SDL_MapRGB(screen->format, 0xFF, 0xFF, 0xFF);
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lineColor = SDL_MapRGB(screen->format, 0x0, 0x0, 0x0);
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/* Prepare a rect for text input */
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textRect.x = textRect.y = 100;
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textRect.w = screen->w - 2 * textRect.x;
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textRect.h = 50;
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text[0] = 0;
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markedRect = textRect;
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markedText[0] = 0;
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SDL_StartTextInput();
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}
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#ifdef HAVE_SDL_TTF
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static void RenderText(SDL_Surface *sur,
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TTF_Font *font,
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const char *text,
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int x, int y,
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SDL_Color color)
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{
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if (text && *text) {
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SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, color);
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SDL_Rect dest = { x, y, textSur->w, textSur->h };
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SDL_BlitSurface(textSur, NULL, sur, &dest);
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SDL_FreeSurface(textSur);
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}
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}
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#endif
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void Redraw()
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{
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int w = 0, h = textRect.h;
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SDL_Rect cursorRect, underlineRect;
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SDL_FillRect(screen, &textRect, backColor);
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#ifdef HAVE_SDL_TTF
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if (*text)
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{
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RenderText(screen, font, text, textRect.x, textRect.y, textColor);
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TTF_SizeUTF8(font, text, &w, &h);
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}
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#endif
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markedRect.x = textRect.x + w;
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markedRect.w = textRect.w - w;
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if (markedRect.w < 0)
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{
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SDL_Flip(screen);
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// Stop text input because we cannot hold any more characters
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SDL_StopTextInput();
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return;
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}
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else
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{
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SDL_StartTextInput();
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}
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cursorRect = markedRect;
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cursorRect.w = 2;
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cursorRect.h = h;
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SDL_FillRect(screen, &markedRect, backColor);
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if (markedText[0])
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{
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#ifdef HAVE_SDL_TTF
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if (cursor)
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{
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char *p = utf8_advance(markedText, cursor);
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char c = 0;
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if (!p)
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p = &markedText[strlen(markedText)];
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c = *p;
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*p = 0;
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TTF_SizeUTF8(font, markedText, &w, 0);
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cursorRect.x += w;
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*p = c;
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}
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RenderText(screen, font, markedText, markedRect.x, markedRect.y, textColor);
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TTF_SizeUTF8(font, markedText, &w, &h);
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#endif
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underlineRect = markedRect;
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underlineRect.y += (h - 2);
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underlineRect.h = 2;
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underlineRect.w = w;
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SDL_FillRect(screen, &underlineRect, lineColor);
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}
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SDL_FillRect(screen, &cursorRect, lineColor);
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SDL_Flip(screen);
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SDL_SetTextInputRect(&markedRect);
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}
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void
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HotKey_ToggleFullScreen(void)
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{
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SDL_Surface *screen;
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screen = SDL_GetVideoSurface();
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if (SDL_WM_ToggleFullScreen(screen)) {
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printf("Toggled fullscreen mode - now %s\n",
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(screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
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} else {
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printf("Unable to toggle fullscreen mode\n");
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}
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}
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int main(int argc, char *argv[])
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{
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SDL_Event event;
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int done = 0;
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InitVideo(argc, argv);
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InitInput();
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Redraw();
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while (! done && SDL_WaitEvent(&event))
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{
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switch (event.type)
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{
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case SDL_KEYDOWN:
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switch (event.key.keysym.sym)
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{
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case SDLK_ESCAPE:
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done = 1;
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break;
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case SDLK_RETURN:
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text[0]=0x00;
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Redraw();
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break;
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case SDLK_BACKSPACE:
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{
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int textlen=SDL_strlen(text);
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do {
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if (textlen==0)
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{
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break;
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}
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if ((text[textlen-1] & 0x80) == 0x00)
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{
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/* One byte */
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text[textlen-1]=0x00;
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break;
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}
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if ((text[textlen-1] & 0xC0) == 0x80)
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{
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/* Byte from the multibyte sequence */
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text[textlen-1]=0x00;
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textlen--;
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}
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if ((text[textlen-1] & 0xC0) == 0xC0)
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{
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/* First byte of multibyte sequence */
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text[textlen-1]=0x00;
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break;
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}
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} while(1);
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Redraw();
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}
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break;
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}
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if (done)
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{
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break;
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}
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fprintf(stderr,
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"Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
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event.key.keysym.scancode,
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SDL_GetScancodeName(event.key.keysym.scancode),
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event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
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break;
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case SDL_TEXTINPUT:
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if (SDL_strlen(event.text.text) == 0 || event.text.text[0] == '\n' ||
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markedRect.w < 0)
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break;
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fprintf(stderr, "Keyboard: text input \"%s\"\n", event.text.text);
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if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text))
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SDL_strlcat(text, event.text.text, sizeof(text));
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fprintf(stderr, "text inputed: %s\n", text);
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// After text inputed, we can clear up markedText because it
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// is committed
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markedText[0] = 0;
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Redraw();
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break;
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case SDL_TEXTEDITING:
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fprintf(stderr, "text editing \"%s\", selected range (%d, %d)\n",
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event.edit.text, event.edit.start, event.edit.length);
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strcpy(markedText, event.edit.text);
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cursor = event.edit.start;
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Redraw();
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break;
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case SDL_QUIT:
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done = 1;
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break;
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default:
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break;
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}
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}
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CleanupVideo();
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return 0;
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}
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/* vi: set ts=4 sw=4 expandtab: */
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