e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 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 */ |
32 | static struct { |
33 | int w; |
34 | int h; |
35 | } last_resize; |
36 | |
37 | /* This is global for SDL_eventloop.c */ |
38 | int 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 | #ifndef __OS2__ |
46 | || ((last_resize.w == w) && (last_resize.h == h)) |
47 | #endif |
48 | ) { |
49 | return(0); |
50 | } |
51 | last_resize.w = w; |
52 | last_resize.h = h; |
53 | if ( ! SDL_VideoSurface || |
54 | ((w == SDL_VideoSurface->w) && (h == SDL_VideoSurface->h)) ) { |
55 | return(0); |
56 | } |
57 | SDL_SetMouseRange(w, h); |
58 | |
59 | /* Pull out all old resize events */ |
60 | SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]), |
61 | SDL_GETEVENT, SDL_VIDEORESIZEMASK); |
62 | |
63 | /* Post the event, if desired */ |
64 | posted = 0; |
65 | if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) { |
66 | SDL_Event event; |
67 | event.type = SDL_VIDEORESIZE; |
68 | event.resize.w = w; |
69 | event.resize.h = h; |
70 | if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { |
71 | posted = 1; |
72 | SDL_PushEvent(&event); |
73 | } |
74 | } |
75 | return(posted); |
76 | } |