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 (at) 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 (( 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
