/**

  * $Id: video_gtk.c,v 1.15 2007-10-13 04:01:02 nkeynes Exp $

  *

  * The PC side of the video support (responsible for actually displaying / 

  * rendering frames)

  *

  * Copyright (c) 2005 Nathan Keynes.

  *

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation; either version 2 of the License, or

  * (at your option) any later version.

  *

  * This program 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 General Public License for more details.

  */

 #include <gnome.h>

 #include <gdk/gdkx.h>

 #include <stdint.h>

 #include "dream.h"

 #include "display.h"

 #include "drivers/video_x11.h"

 #include "gui/gtkui.h"

 static GtkWidget *video_win = NULL;

 int video_width = 640;

 int video_height = 480;

 gboolean video_gtk_init();

 void video_gtk_shutdown();

 uint16_t video_gtk_resolve_keysym( const gchar *keysym );

 struct display_driver display_gtk_driver = { "gtk", video_gtk_init, video_gtk_shutdown,

 					     video_gtk_resolve_keysym,

 					     NULL, NULL, NULL, NULL, NULL, NULL, NULL };

 gboolean video_gtk_keydown_callback(GtkWidget       *widget,

 				     GdkEventKey     *event,

 				     gpointer         user_data)

 {

     input_event_keydown( event->keyval );

     return TRUE;

 }

 uint16_t video_gtk_resolve_keysym( const gchar *keysym )

 {

     int val = gdk_keyval_from_name( keysym );

     if( val == GDK_VoidSymbol )

 	return 0;

     return (uint16_t)val;

 }

 gboolean video_gtk_keyup_callback(GtkWidget       *widget,

 				  GdkEventKey     *event,

 				  gpointer         user_data)

 {

     input_event_keyup( event->keyval );

     return TRUE;

 }

 gboolean video_gtk_expose_callback(GtkWidget *widget, GdkEventExpose *event, gpointer data )

 {

     gl_redisplay_last();

     return TRUE;

 }

 gboolean video_gtk_resize_callback(GtkWidget *widget, GdkEventConfigure *event, gpointer data )

 {

     video_width = event->width;

     video_height = event->height;

     gl_redisplay_last();

     return TRUE;

 }

 gboolean video_gtk_init()

 {

     video_win = gtk_gui_get_renderarea();

     g_signal_connect( video_win, "key_press_event", 

 		      G_CALLBACK(video_gtk_keydown_callback), NULL );

     g_signal_connect( video_win, "key_release_event", 

 		      G_CALLBACK(video_gtk_keyup_callback), NULL );

     g_signal_connect( video_win, "expose_event",

 		      G_CALLBACK(video_gtk_expose_callback), NULL );

     g_signal_connect( video_win, "configure_event",

 		      G_CALLBACK(video_gtk_resize_callback), NULL );

     gtk_widget_add_events( video_win, 

 			   GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |

 			   GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK );

     gtk_widget_set_double_buffered( video_win, FALSE );

     video_width = video_win->allocation.width;

     video_height = video_win->allocation.height;

     return video_glx_init( gdk_x11_display_get_xdisplay( gtk_widget_get_display(GTK_WIDGET(video_win))),

 			   gdk_x11_screen_get_xscreen( gtk_widget_get_screen(GTK_WIDGET(video_win))),

 			   GDK_WINDOW_XWINDOW( GTK_WIDGET(video_win)->window ),

 			   video_width, video_height, &display_gtk_driver );

 }

 void video_gtk_shutdown()

 {

     video_glx_shutdown();

     gtk_widget_destroy( GTK_WIDGET(video_win) );

 }