1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/* Resize event handling code for SDL */
25
26#include "SDL_events.h"
27#include "SDL_events_c.h"
28#include "../video/SDL_sysvideo.h"
29
30
31/* Keep the last resize event so we don't post duplicates */
32static struct {
33	int w;
34	int h;
35} last_resize;
36
37/* This is global for SDL_eventloop.c */
38int SDL_PrivateResize(int w, int h)
39{
40	int posted;
41	SDL_Event events[32];
42
43	/* See if this event would change the video surface */
44	if ( !w || !h ||
45	     (( last_resize.w == w ) && ( last_resize.h == h )) ||
46	     !SDL_VideoSurface ) {
47		 return(0);
48	}
49	last_resize.w = w;
50	last_resize.h = h;
51
52	SDL_SetMouseRange(w, h);
53
54	/* Pull out all old resize events */
55	SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),
56	                    SDL_GETEVENT, SDL_VIDEORESIZEMASK);
57
58	/* Post the event, if desired */
59	posted = 0;
60	if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) {
61		SDL_Event event;
62		event.type = SDL_VIDEORESIZE;
63		event.resize.w = w;
64		event.resize.h = h;
65		if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
66			posted = 1;
67			SDL_PushEvent(&event);
68		}
69	}
70	return(posted);
71}
72