view src/video/dga/SDL_dgaevents.c @ 79:ffadd05de74d

Allow the user to override the relative mouse mode. They almost never want to do this, as it seriously affects applications that rely on continuous relative mouse motion.
author Sam Lantinga <slouken@lokigames.com>
date Sat, 23 Jun 2001 22:00:59 +0000
parents 74212992fb08
children 825b2fa28e2e
line wrap: on
line source

/*
    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
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

/* Handle the event stream, converting DGA events into SDL events */

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>

#include "SDL_sysvideo.h"
#include "SDL_events_c.h"
#include "SDL_dgavideo.h"
#include "SDL_dgaevents_c.h"

/* Heheh we're using X11 event code */
extern int X11_Pending(Display *display);
extern void X11_InitKeymap(void);
extern SDL_keysym *X11_TranslateKey(Display *display, XKeyEvent *xkey,
				    KeyCode kc, SDL_keysym *keysym);

static int DGA_DispatchEvent(_THIS)
{
	int posted;
	XDGAEvent xevent;

	XNextEvent(DGA_Display, (XEvent *)&xevent);

	posted = 0;
	xevent.type -= DGA_event_base;
	switch (xevent.type) {

	    /* Mouse motion? */
	    case MotionNotify: {
		if ( SDL_VideoSurface ) {
			posted = SDL_PrivateMouseMotion(0, 1,
					xevent.xmotion.dx, xevent.xmotion.dy);
		}
	    }
	    break;

	    /* Mouse button press? */
	    case ButtonPress: {
		posted = SDL_PrivateMouseButton(SDL_PRESSED, 
					xevent.xbutton.button, 0, 0);
	    }
	    break;

	    /* Mouse button release? */
	    case ButtonRelease: {
		posted = SDL_PrivateMouseButton(SDL_RELEASED, 
					xevent.xbutton.button, 0, 0);
	    }
	    break;

	    /* Key press or release? */
	    case KeyPress:
	    case KeyRelease: {
		SDL_keysym keysym;
		XKeyEvent xkey;

		XDGAKeyEventToXKeyEvent(&xevent.xkey, &xkey);
		posted = SDL_PrivateKeyboard((xevent.type == KeyPress), 
					X11_TranslateKey(DGA_Display,
							 &xkey, xkey.keycode,
							 &keysym));
	    }
	    break;

	}
	return(posted);
}

void DGA_PumpEvents(_THIS)
{
	/* Keep processing pending events */
	while ( X11_Pending(DGA_Display) ) {
		DGA_DispatchEvent(this);
	}
}

void DGA_InitOSKeymap(_THIS)
{
	X11_InitKeymap();
}