/*
 * $Id$
 *
 * Copyright © 2004 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#include "lpint.h"

static void
process_destroy_notify (XDestroyWindowEvent *event)
{
    _xlightpipe_remove_window (event->display, event->window);
}

static void
process_configure_notify (XConfigureEvent *event)
{
    light_pipe_window	*lpw = _xlightpipe_find_window (event->display, event->window);

    if (!lpw)
	return;
    if (event->width != lpw->public.geometry.width ||
	event->height != lpw->public.geometry.height)
    {
	lpw->public.geometry.width = event->width;
	lpw->public.geometry.height = event->height;
	_xlightpipe_destroy_window_image (lpw);
	_xlightpipe_create_window_image (lpw);
	_xlightpipe_damage_window (lpw, 0, 0, event->width, event->height);
    }
    lpw->public.geometry.x = event->x;
    lpw->public.geometry.y = event->y;
    lpw->public.border_width = event->border_width;
}

static void
process_damage_notify (XDamageNotifyEvent *event)
{
    light_pipe_window	*lpw = _xlightpipe_find_window (event->display, event->drawable);

    if (!lpw)
	return;
    _xlightpipe_damage_window (lpw, 
			       event->area.x,
			       event->area.y,
			       event->area.width,
			       event->area.height);
}

static void
process_event (XEvent *event)
{
    Display		*display = event->xany.display;
    light_pipe_display	*lpd = _xlightpipe_find_display (display);

    if (!lpd)
	return;
    switch (event->type) {
    case DestroyNotify:
	process_destroy_notify ((XDestroyWindowEvent *) event);
	return;
    case ConfigureNotify:
	process_configure_notify ((XConfigureEvent *) event);
	return;
    default:
	break;
    }
    switch (event->type - lpd->damage.event_base) {
    case XDamageNotify:
	process_damage_notify ((XDamageNotifyEvent *) event);
	return;
    default:
	break;
    }
}

Bool
_xlightpipe_await_event (Display *display)
{
    XEvent  event;

    XPeekEvent (display, &event);
    return True;
}

void
_xlightpipe_process_events (Display *display)
{
    while (XPending (display))
    {
	XEvent	event;

	XNextEvent (display, &event);
	process_event (&event);
    }
}