stella/src/common/EventHandlerSDL.cxx

289 lines
8.8 KiB
C++

//============================================================================
//
// SSSS tt lll lll
// SS SS tt ll ll
// SS tttttt eeee ll ll aaaa
// SSSS tt ee ee ll ll aa
// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
// SS SS tt ee ll ll aa aa
// SSSS ttt eeeee llll llll aaaaa
//
// Copyright (c) 1995-2025 by Bradford W. Mott, Stephen Anthony
// and the Stella Team
//
// See the file "License.txt" for information on usage and redistribution of
// this file, and for a DISCLAIMER OF ALL WARRANTIES.
//============================================================================
#include "Logger.hxx"
#include "OSystem.hxx"
#include "EventHandlerSDL.hxx"
#include "ThreadDebugging.hxx"
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
EventHandlerSDL::EventHandlerSDL(OSystem& osystem)
: EventHandler{osystem}
{
ASSERT_MAIN_THREAD;
#ifdef GUI_SUPPORT
{
ostringstream buf;
myQwertz = int{'y'} == static_cast<int>
(SDL_GetKeyFromScancode(static_cast<SDL_Scancode>(KBDK_Z), static_cast<SDL_Keymod>(StellaMod::KBDM_NONE), false));
buf << "Keyboard: " << (myQwertz ? "QWERTZ" : "QWERTY");
Logger::debug(buf.view());
}
#endif
#ifdef JOYSTICK_SUPPORT
if(!SDL_InitSubSystem(SDL_INIT_JOYSTICK))
{
ostringstream buf;
buf << "ERROR: Couldn't initialize SDL joystick support: "
<< SDL_GetError() << '\n';
Logger::error(buf.view());
}
Logger::debug("EventHandlerSDL::EventHandlerSDL SDL_INIT_JOYSTICK");
#endif
SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
//SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_SYSTEM_SCALE, "1");
//SDL_SetHint(SDL_HINT_MOUSE_RELATIVE_MODE_CENTER, "0");
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
EventHandlerSDL::~EventHandlerSDL()
{
ASSERT_MAIN_THREAD;
if(SDL_WasInit(SDL_INIT_JOYSTICK))
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void EventHandlerSDL::copyText(const string& text) const
{
SDL_SetClipboardText(text.c_str());
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
string EventHandlerSDL::pasteText(string& text) const
{
if(SDL_HasClipboardText())
text = SDL_GetClipboardText();
else
text = "";
return text;
};
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void EventHandlerSDL::pollEvent()
{
ASSERT_MAIN_THREAD;
while(SDL_PollEvent(&myEvent))
{
switch(myEvent.type)
{
// keyboard events
case SDL_EVENT_KEY_UP:
case SDL_EVENT_KEY_DOWN:
{
handleKeyEvent(static_cast<StellaKey>(myEvent.key.scancode),
static_cast<StellaMod>(myEvent.key.mod),
myEvent.type == SDL_EVENT_KEY_DOWN,
myEvent.key.repeat);
break;
}
case SDL_EVENT_TEXT_INPUT:
{
handleTextEvent(*(myEvent.text.text));
break;
}
case SDL_EVENT_MOUSE_MOTION:
{
handleMouseMotionEvent(myEvent.motion.x, myEvent.motion.y,
myEvent.motion.xrel, myEvent.motion.yrel);
break;
}
case SDL_EVENT_MOUSE_BUTTON_DOWN:
case SDL_EVENT_MOUSE_BUTTON_UP:
{
// ToDo: check support of more buttons and double-click
MouseButton b{MouseButton::NONE};
switch(myEvent.button.button)
{
case SDL_BUTTON_LEFT:
b = MouseButton::LEFT;
break;
case SDL_BUTTON_RIGHT:
b = MouseButton::RIGHT;
break;
case SDL_BUTTON_MIDDLE:
b = MouseButton::MIDDLE;
break;
default:
break;
}
handleMouseButtonEvent(b, myEvent.button.type == SDL_EVENT_MOUSE_BUTTON_DOWN,
myEvent.button.x, myEvent.button.y);
break;
}
case SDL_EVENT_MOUSE_WHEEL:
{
// TODO: SDL now uses float for mouse coords, but the core still
// uses int throughout; maybe this is sufficient?
float x{0.F}, y{0.F};
SDL_GetMouseState(&x, &y); // we need mouse position too
if(myEvent.wheel.y < 0)
handleMouseButtonEvent(MouseButton::WHEELDOWN, true,
static_cast<int>(x), static_cast<int>(y));
else if(myEvent.wheel.y > 0)
handleMouseButtonEvent(MouseButton::WHEELUP, true,
static_cast<int>(x), static_cast<int>(y));
break;
}
#ifdef JOYSTICK_SUPPORT
case SDL_EVENT_JOYSTICK_BUTTON_UP:
case SDL_EVENT_JOYSTICK_BUTTON_DOWN:
{
handleJoyBtnEvent(myEvent.jbutton.which, myEvent.jbutton.button,
myEvent.jbutton.down);
break;
}
case SDL_EVENT_JOYSTICK_AXIS_MOTION:
{
handleJoyAxisEvent(myEvent.jaxis.which, myEvent.jaxis.axis,
myEvent.jaxis.value);
break;
}
case SDL_EVENT_JOYSTICK_HAT_MOTION:
{
int value = 0;
const int v = myEvent.jhat.value;
if(v == SDL_HAT_CENTERED)
value = EVENT_HATCENTER_M;
else
{
if(v & SDL_HAT_UP) value |= EVENT_HATUP_M;
if(v & SDL_HAT_DOWN) value |= EVENT_HATDOWN_M;
if(v & SDL_HAT_LEFT) value |= EVENT_HATLEFT_M;
if(v & SDL_HAT_RIGHT) value |= EVENT_HATRIGHT_M;
}
handleJoyHatEvent(myEvent.jhat.which, myEvent.jhat.hat, value);
break;
}
case SDL_EVENT_JOYSTICK_ADDED:
{
addPhysicalJoystick(make_shared<JoystickSDL>(myEvent.jdevice.which));
break;
}
case SDL_EVENT_JOYSTICK_REMOVED:
{
removePhysicalJoystick(myEvent.jdevice.which);
break;
}
#endif
case SDL_EVENT_QUIT:
{
handleEvent(Event::Quit);
break;
}
case SDL_EVENT_WINDOW_SHOWN:
handleSystemEvent(SystemEvent::WINDOW_SHOWN);
break;
case SDL_EVENT_WINDOW_HIDDEN:
handleSystemEvent(SystemEvent::WINDOW_HIDDEN);
break;
case SDL_EVENT_WINDOW_EXPOSED:
handleSystemEvent(SystemEvent::WINDOW_EXPOSED);
break;
case SDL_EVENT_WINDOW_MOVED:
handleSystemEvent(SystemEvent::WINDOW_MOVED,
myEvent.window.data1, myEvent.window.data1);
break;
case SDL_EVENT_WINDOW_RESIZED:
handleSystemEvent(SystemEvent::WINDOW_RESIZED,
myEvent.window.data1, myEvent.window.data1);
break;
case SDL_EVENT_WINDOW_MINIMIZED:
handleSystemEvent(SystemEvent::WINDOW_MINIMIZED);
break;
case SDL_EVENT_WINDOW_MAXIMIZED:
handleSystemEvent(SystemEvent::WINDOW_MAXIMIZED);
break;
case SDL_EVENT_WINDOW_RESTORED:
handleSystemEvent(SystemEvent::WINDOW_RESTORED);
break;
case SDL_EVENT_WINDOW_MOUSE_ENTER:
handleSystemEvent(SystemEvent::WINDOW_ENTER);
break;
case SDL_EVENT_WINDOW_MOUSE_LEAVE:
handleSystemEvent(SystemEvent::WINDOW_LEAVE);
break;
case SDL_EVENT_WINDOW_FOCUS_GAINED:
handleSystemEvent(SystemEvent::WINDOW_FOCUS_GAINED);
break;
case SDL_EVENT_WINDOW_FOCUS_LOST:
handleSystemEvent(SystemEvent::WINDOW_FOCUS_LOST);
break;
case SDL_EVENT_SYSTEM_THEME_CHANGED:
handleSystemEvent(SystemEvent::THEME_CHANGED);
break;
default:
break;
}
}
}
#ifdef JOYSTICK_SUPPORT
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
EventHandlerSDL::JoystickSDL::JoystickSDL(int idx)
{
ASSERT_MAIN_THREAD;
// NOLINTNEXTLINE: we want to initialize here, not in the member list
myStick = SDL_OpenJoystick(idx);
if(myStick)
{
// In Windows, all XBox controllers using the XInput API seem to name
// the controller as "XInput Controller". This would be fine, except
// it also appends " #x", where x seems to vary. Obviously this wreaks
// havoc with the idea that a joystick will always have the same name.
// So we truncate the number.
const char* const sdlname = SDL_GetJoystickName(myStick);
const string& desc = BSPF::startsWithIgnoreCase(sdlname, "XInput Controller")
? "XInput Controller" : sdlname;
initialize(SDL_GetJoystickID(myStick), desc,
SDL_GetNumJoystickAxes(myStick),
SDL_GetNumJoystickButtons(myStick),
SDL_GetNumJoystickHats(myStick),
SDL_GetNumJoystickBalls(myStick));
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
EventHandlerSDL::JoystickSDL::~JoystickSDL()
{
ASSERT_MAIN_THREAD;
if(SDL_WasInit(SDL_INIT_JOYSTICK) && myStick)
SDL_CloseJoystick(myStick);
}
#endif