research.m1stereo.tv/gitweb/ - melted/blob - src/modules/gtk2/consumer_gtk2.c

   1 /*
   2  * consumer_gtk2.c -- A consumer for GTK2 apps
   3  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
   4  * Author: Charles Yates
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include <framework/mlt_consumer.h>
  23 #include <framework/mlt_factory.h>
  24 #include <gdk/gdk.h>
  25 #include <gdk/gdkx.h>
  26 #include <gtk/gtk.h>
  27
  28 mlt_consumer consumer_gtk2_preview_init( mlt_profile profile, GtkWidget *widget )
  29 {
  30         // Create an sdl preview consumer
  31         mlt_consumer consumer = NULL;
  32
  33         // This is a nasty little hack which is required by SDL
  34         if ( widget != NULL )
  35         {
  36         Window xwin = GDK_WINDOW_XWINDOW( widget->window );
  37         char windowhack[ 32 ];
  38         sprintf( windowhack, "%ld", xwin );
  39         setenv( "SDL_WINDOWID", windowhack, 1 );
  40         }
  41
  42         // Create an sdl preview consumer
  43         consumer = mlt_factory_consumer( profile, "sdl_preview", NULL );
  44
  45         // Now assign the lock/unlock callbacks
  46         if ( consumer != NULL )
  47         {
  48                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
  49                 mlt_properties_set_int( properties, "app_locked", 1 );
  50                 mlt_properties_set_data( properties, "app_lock", gdk_threads_enter, 0, NULL, NULL );
  51                 mlt_properties_set_data( properties, "app_unlock", gdk_threads_leave, 0, NULL, NULL );
  52         }
  53
  54         return consumer;
  55 }