/*+
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    SDL - Simple DirectMedia Layer+
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    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga+
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+
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    This library is free software; you can redistribute it and/or+
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    modify it under the terms of the GNU Library General Public+
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    License as published by the Free Software Foundation; either+
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    version 2 of the License, or (at your option) any later version.+
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+
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    This library is distributed in the hope that it will be useful,+
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    but WITHOUT ANY WARRANTY; without even the implied warranty of+
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU+
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    Library General Public License for more details.+
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+
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    You should have received a copy of the GNU Library General Public+
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    License along with this library; if not, write to the Free+
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA+
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+
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    Sam Lantinga+
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    slouken@libsdl.org+
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*/+
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+
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#ifdef SAVE_RCSID+
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static char rcsid =+
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 "@(#) $Id$";+
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#endif+
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+
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/* Application focus/iconification handling code for SDL */+
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+
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#include <stdio.h>+
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#include <string.h>+
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+
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#include "SDL_events.h"+
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#include "SDL_events_c.h"+
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+
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+
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/* These are static for our active event handling code */+
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static Uint8 SDL_appstate = 0;+
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+
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/* Public functions */+
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int SDL_AppActiveInit(void)+
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{+
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	/* Start completely active */+
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	SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS);+
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+
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	/* That's it! */+
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	return(0);+
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}+
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+
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Uint8 SDL_GetAppState(void)+
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{+
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	return(SDL_appstate);+
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}+
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+
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/* This is global for SDL_eventloop.c */+
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int SDL_PrivateAppActive(Uint8 gain, Uint8 state)+
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{+
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	int posted;+
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	Uint8 new_state;+
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+
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	/* Modify the current state with the given mask */+
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	if ( gain ) {+
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		new_state = (SDL_appstate | state);+
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	} else {+
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		new_state = (SDL_appstate & ~state);+
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	}+
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+
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	/* Drop events that don't change state */+
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	if ( new_state == SDL_appstate ) {+
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		return(0);+
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	}+
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+
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	/* Update internal active state */+
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	SDL_appstate = new_state;+
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+
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	/* Post the event, if desired */+
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	posted = 0;+
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	if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) {+
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		SDL_Event event;+
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		memset(&event, 0, sizeof(event));+
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		event.type = SDL_ACTIVEEVENT;+
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		event.active.gain = gain;+
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		event.active.state = state;+
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		if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {+
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			posted = 1;+
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			SDL_PushEvent(&event);+
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		}+
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	}+
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+
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	/* If we lost keyboard focus, post key-up events */+
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	if ( (state & SDL_APPINPUTFOCUS) && !gain ) {+
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		SDL_ResetKeyboard();+
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	}+
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	return(posted);+
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}+
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