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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.c95
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
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+++ 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);
+}