diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/events/SDL_active.c')
-rw-r--r-- | distrib/sdl-1.2.15/src/events/SDL_active.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/events/SDL_active.c b/distrib/sdl-1.2.15/src/events/SDL_active.c new file mode 100644 index 0000000..201fb80 --- /dev/null +++ b/distrib/sdl-1.2.15/src/events/SDL_active.c @@ -0,0 +1,95 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* Application focus/iconification handling code for SDL */ + +#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); +} +void SDL_AppActiveQuit(void) +{ +} + +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; + SDL_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(); + } + /* If we were minimized, post button-up events */ + if ( (state & SDL_APPACTIVE) && !gain ) { + SDL_ResetMouse(); + } + return(posted); +} |