/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 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"

/* Resize event handling code for SDL */

#include "SDL_events.h"

#include "SDL_events_c.h"

#include "../video/SDL_sysvideo.h"

/* Keep the last resize event so we don't post duplicates */

static struct {

	int w;

	int h;

} last_resize;

/* This is global for SDL_eventloop.c */

int SDL_PrivateResize(int w, int h)

{

	int posted;

	SDL_Event events[32];

	/* See if this event would change the video surface */

	if ( !w || !h

#ifndef __OS2__

            || ((last_resize.w == w) && (last_resize.h == h))

#endif

    ) {

		return(0);

	}

        last_resize.w = w;

        last_resize.h = h;

	if ( ! SDL_VideoSurface ||

	     ((w == SDL_VideoSurface->w) && (h == SDL_VideoSurface->h)) ) {

		return(0);

	}

	/* Pull out all old resize events */

	SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),

	                    SDL_GETEVENT, SDL_VIDEORESIZEMASK);

	/* Post the event, if desired */

	posted = 0;

	if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) {

		SDL_Event event;

		event.type = SDL_VIDEORESIZE;

		event.resize.w = w;

		event.resize.h = h;

		if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {

			posted = 1;

			SDL_PushEvent(&event);

		}

	}

	return(posted);

}