| 0,0 → 1,91 |
|---|
| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with this library; if not, write to the Free |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| Sam Lantinga |
| slouken@devolution.com |
| */ |
| |
| |
| /* Application focus/iconification handling code for SDL */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "SDL_events.h" |
| #include "SDL_events_c.h" |
| |
| |
| /* These are static for our active event handling code */ |
| static Uint8 SDL_appstate = 0; |
| |
| /* Public functions */ |
| int SDL_AppActiveInit(void) |
| { |
| /* Start completely active */ |
| SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS); |
| |
| /* That's it! */ |
| return(0); |
| } |
| |
| Uint8 SDL_GetAppState(void) |
| { |
| return(SDL_appstate); |
| } |
| |
| /* This is global for SDL_eventloop.c */ |
| int SDL_PrivateAppActive(Uint8 gain, Uint8 state) |
| { |
| int posted; |
| Uint8 new_state; |
| |
| /* Modify the current state with the given mask */ |
| if ( gain ) { |
| new_state = (SDL_appstate | state); |
| } else { |
| new_state = (SDL_appstate & ~state); |
| } |
| |
| /* Drop events that don't change state */ |
| if ( new_state == SDL_appstate ) { |
| return(0); |
| } |
| |
| /* Update internal active state */ |
| SDL_appstate = new_state; |
| |
| /* Post the event, if desired */ |
| posted = 0; |
| if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) { |
| SDL_Event event; |
| memset(&event, 0, sizeof(event)); |
| event.type = SDL_ACTIVEEVENT; |
| event.active.gain = gain; |
| event.active.state = state; |
| if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { |
| posted = 1; |
| SDL_PushEvent(&event); |
| } |
| } |
| |
| /* If we lost keyboard focus, post key-up events */ |
| if ( (state & SDL_APPINPUTFOCUS) && !gain ) { |
| SDL_ResetKeyboard(); |
| } |
| return(posted); |
| } |