SDL_windowevents_c.h File Reference

#include "../SDL_internal.h"

Include dependency graph for SDL_windowevents_c.h:

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Functions
int	SDL_SendWindowEvent (SDL_Window *window, Uint8 windowevent, int data1, int data2)

Function Documentation

int SDL_SendWindowEvent	(	SDL_Window *	window,
		Uint8	windowevent,
		int	data1,
		int	data2
	)

Definition at line 74 of file SDL_windowevents.c.

References SDL_Window::flags, SDL_Rect::h, SDL_Window::h, SDL_Window::id, SDL_Window::next, SDL_Window::prev, RemovePendingExposedEvents(), RemovePendingMoveEvents(), RemovePendingSizeChangedAndResizedEvents(), SDL_ENABLE, SDL_FilterEvents, SDL_GetEventState, SDL_OnWindowEnter(), SDL_OnWindowFocusGained(), SDL_OnWindowFocusLost(), SDL_OnWindowHidden(), SDL_OnWindowLeave(), SDL_OnWindowMinimized(), SDL_OnWindowResized(), SDL_OnWindowRestored(), SDL_OnWindowShown(), SDL_PushEvent, SDL_SendQuit(), SDL_WINDOW_FULLSCREEN, SDL_WINDOW_HIDDEN, SDL_WINDOW_INPUT_FOCUS, SDL_WINDOW_MAXIMIZED, SDL_WINDOW_MINIMIZED, SDL_WINDOW_MOUSE_FOCUS, SDL_WINDOW_SHOWN, SDL_WINDOWEVENT, SDL_WINDOWEVENT_CLOSE, SDL_WINDOWEVENT_ENTER, SDL_WINDOWEVENT_EXPOSED, SDL_WINDOWEVENT_FOCUS_GAINED, SDL_WINDOWEVENT_FOCUS_LOST, SDL_WINDOWEVENT_HIDDEN, SDL_WINDOWEVENT_LEAVE, SDL_WINDOWEVENT_MAXIMIZED, SDL_WINDOWEVENT_MINIMIZED, SDL_WINDOWEVENT_MOVED, SDL_WINDOWEVENT_RESIZED, SDL_WINDOWEVENT_RESTORED, SDL_WINDOWEVENT_SHOWN, SDL_WINDOWEVENT_SIZE_CHANGED, SDL_WINDOWPOS_ISUNDEFINED, SDL_Rect::w, SDL_Window::w, SDL_Window::windowed, SDL_Rect::x, SDL_Window::x, SDL_Rect::y, and SDL_Window::y.

Referenced by SDL_BApp::_HandleBasicWindowEvent(), SDL_BApp::_HandleWindowMoved(), SDL_BApp::_HandleWindowResized(), SDL_HideWindow(), SDL_OnApplicationDidBecomeActive(), SDL_OnApplicationWillResignActive(), SDL_OnWindowResized(), SDL_SetKeyboardFocus(), SDL_SetMouseFocus(), SDL_SetWindowPosition(), SDL_ShowWindow(), SDL_UpdateFullscreenMode(), and WINRT_ProcessWindowSizeChange().

{
    int posted;

    if (!window) {
        return 0;
    }
    switch (windowevent) {
    case SDL_WINDOWEVENT_SHOWN:
        if (window->flags & SDL_WINDOW_SHOWN) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_HIDDEN;
        window->flags |= SDL_WINDOW_SHOWN;
        SDL_OnWindowShown(window);
        break;
    case SDL_WINDOWEVENT_HIDDEN:
        if (!(window->flags & SDL_WINDOW_SHOWN)) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_SHOWN;
        window->flags |= SDL_WINDOW_HIDDEN;
        SDL_OnWindowHidden(window);
        break;
    case SDL_WINDOWEVENT_MOVED:
        if (SDL_WINDOWPOS_ISUNDEFINED(data1) ||
            SDL_WINDOWPOS_ISUNDEFINED(data2)) {
            return 0;
        }
        if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
            window->windowed.x = data1;
            window->windowed.y = data2;
        }
        if (data1 == window->x && data2 == window->y) {
            return 0;
        }
        window->x = data1;
        window->y = data2;
        break;
    case SDL_WINDOWEVENT_RESIZED:
        if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {
            window->windowed.w = data1;
            window->windowed.h = data2;
        }
        if (data1 == window->w && data2 == window->h) {
            return 0;
        }
        window->w = data1;
        window->h = data2;
        SDL_OnWindowResized(window);
        break;
    case SDL_WINDOWEVENT_MINIMIZED:
        if (window->flags & SDL_WINDOW_MINIMIZED) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_MAXIMIZED;
        window->flags |= SDL_WINDOW_MINIMIZED;
        SDL_OnWindowMinimized(window);
        break;
    case SDL_WINDOWEVENT_MAXIMIZED:
        if (window->flags & SDL_WINDOW_MAXIMIZED) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_MINIMIZED;
        window->flags |= SDL_WINDOW_MAXIMIZED;
        break;
    case SDL_WINDOWEVENT_RESTORED:
        if (!(window->flags & (SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED))) {
            return 0;
        }
        window->flags &= ~(SDL_WINDOW_MINIMIZED | SDL_WINDOW_MAXIMIZED);
        SDL_OnWindowRestored(window);
        break;
    case SDL_WINDOWEVENT_ENTER:
        if (window->flags & SDL_WINDOW_MOUSE_FOCUS) {
            return 0;
        }
        window->flags |= SDL_WINDOW_MOUSE_FOCUS;
        SDL_OnWindowEnter(window);
        break;
    case SDL_WINDOWEVENT_LEAVE:
        if (!(window->flags & SDL_WINDOW_MOUSE_FOCUS)) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_MOUSE_FOCUS;
        SDL_OnWindowLeave(window);
        break;
    case SDL_WINDOWEVENT_FOCUS_GAINED:
        if (window->flags & SDL_WINDOW_INPUT_FOCUS) {
            return 0;
        }
        window->flags |= SDL_WINDOW_INPUT_FOCUS;
        SDL_OnWindowFocusGained(window);
        break;
    case SDL_WINDOWEVENT_FOCUS_LOST:
        if (!(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
            return 0;
        }
        window->flags &= ~SDL_WINDOW_INPUT_FOCUS;
        SDL_OnWindowFocusLost(window);
        break;
    }

    /* Post the event, if desired */
    posted = 0;
    if (SDL_GetEventState(SDL_WINDOWEVENT) == SDL_ENABLE) {
        SDL_Event event;
        event.type = SDL_WINDOWEVENT;
        event.window.event = windowevent;
        event.window.data1 = data1;
        event.window.data2 = data2;
        event.window.windowID = window->id;

        /* Fixes queue overflow with resize events that aren't processed */
        if (windowevent == SDL_WINDOWEVENT_SIZE_CHANGED) {
            SDL_FilterEvents(RemovePendingSizeChangedAndResizedEvents, &event);
        }
        if (windowevent == SDL_WINDOWEVENT_MOVED) {
            SDL_FilterEvents(RemovePendingMoveEvents, &event);
        }
        if (windowevent == SDL_WINDOWEVENT_EXPOSED) {
            SDL_FilterEvents(RemovePendingExposedEvents, &event);
        }
        posted = (SDL_PushEvent(&event) > 0);
    }

    if (windowevent == SDL_WINDOWEVENT_CLOSE) {
        if ( !window->prev && !window->next ) {
            /* This is the last window in the list so send the SDL_QUIT event */
            SDL_SendQuit();
        }
    }

    return (posted);
}