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gnome-games r8183 - trunk/aisleriot

Author: chpe
Date: Thu Oct 23 14:22:47 2008
New Revision: 8183
URL: http://svn.gnome.org/viewvc/gnome-games?rev=8183&view=rev

Log:
Import gtk-clutter-embed for future fixup

Added:
   trunk/aisleriot/clutter-embed.c
   trunk/aisleriot/clutter-embed.h
Modified:
   trunk/aisleriot/Makefile.am
   trunk/aisleriot/board.c

Modified: trunk/aisleriot/Makefile.am
==============================================================================
--- trunk/aisleriot/Makefile.am	(original)
+++ trunk/aisleriot/Makefile.am	Thu Oct 23 14:22:47 2008
@@ -40,6 +40,8 @@
 	card.h          \
 	card-cache.c    \
 	card-cache.h    \
+	clutter-embed.c	\
+	clutter-embed.h	\
 	slot-renderer.c \
 	slot-renderer.h \
 	$(NULL)

Modified: trunk/aisleriot/board.c
==============================================================================
--- trunk/aisleriot/board.c	(original)
+++ trunk/aisleriot/board.c	Thu Oct 23 14:22:47 2008
@@ -45,6 +45,7 @@
 #include "card-cache.h"
 #include "card.h"
 #include "slot-renderer.h"
+#include "clutter-embed.h"
 
 #define AISLERIOT_BOARD_GET_PRIVATE(board)(G_TYPE_INSTANCE_GET_PRIVATE ((board), AISLERIOT_TYPE_BOARD, AisleriotBoardPrivate))
 
@@ -413,7 +414,7 @@
 
   if (priv->baize_actor == NULL) {
     ClutterActor *stage
-      = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (board));
+      = aisleriot_clutter_embed_get_stage (AISLERIOT_CLUTTER_EMBED (board));
 
     priv->baize_actor = g_object_ref_sink (aisleriot_baize_new ());
     clutter_container_add (CLUTTER_CONTAINER (stage),
@@ -964,7 +965,7 @@
 {
   AisleriotBoardPrivate *priv = board->priv;
   ClutterActor *stage
-    = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (board));
+    = aisleriot_clutter_embed_get_stage (AISLERIOT_CLUTTER_EMBED (board));
 
   if (!priv->geometry_set)
     return;
@@ -1188,7 +1189,7 @@
   slot_update_card_images (board, hslot);
   aisleriot_game_reset_old_cards (hslot);
 
-  stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (board));
+  stage = aisleriot_clutter_embed_get_stage (AISLERIOT_CLUTTER_EMBED (board));
   clutter_container_add (CLUTTER_CONTAINER (stage),
                          priv->moving_cards_group, NULL);
 
@@ -2237,7 +2238,7 @@
 
 /* Class implementation */
 
-G_DEFINE_TYPE (AisleriotBoard, aisleriot_board, GTK_TYPE_CLUTTER_EMBED);
+G_DEFINE_TYPE (AisleriotBoard, aisleriot_board, AISLERIOT_TYPE_CLUTTER_EMBED);
 
 /* AisleriotBoardClass methods */
 
@@ -3143,7 +3144,7 @@
   gtk_widget_tap_and_hold_setup (widget, NULL, NULL, GTK_TAP_AND_HOLD_PASS_PRESS);
 #endif
 
-  stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (board));
+  stage = aisleriot_clutter_embed_get_stage (AISLERIOT_CLUTTER_EMBED (board));
   priv->animation_layer = g_object_ref_sink (clutter_group_new ());
   clutter_container_add (CLUTTER_CONTAINER (stage),
                          priv->animation_layer, NULL);

Added: trunk/aisleriot/clutter-embed.c
==============================================================================
--- (empty file)
+++ trunk/aisleriot/clutter-embed.c	Thu Oct 23 14:22:47 2008
@@ -0,0 +1,491 @@
+/* gtk-clutter-embed.c: Embeddable ClutterStage
+ *
+ * Copyright (C) 2007 OpenedHand
+ *
+ * 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 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 see <http://www.fsf.org/licensing>.
+ *
+ * Authors:
+ *   Iain Holmes  <iain openedhand com>
+ *   Emmanuele Bassi  <ebassi openedhand com>
+ */
+
+/**
+ * SECTION:gtk-clutter-embed
+ * @short_description: Widget for embedding a Clutter scene
+ *
+ * #AisleriotClutterEmbed is a GTK+ widget embedding a #ClutterStage. Using
+ * a #AisleriotClutterEmbed widget is possible to build, show and interact with
+ * a scene built using Clutter inside a GTK+ application.
+ *
+ * <note>To avoid flickering on show, you should call gtk_widget_show()
+ * or gtk_widget_realize() before calling clutter_actor_show() on the
+ * embedded #ClutterStage actor. This is needed for Clutter to be able
+ * to paint on the #AisleriotClutterEmbed widget.</note>
+ *
+ * Since: 0.6
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib-object.h>
+
+#include <gdk/gdk.h>
+#include <gtk/gtkmain.h>
+
+#include <clutter/clutter-main.h>
+#include <clutter/clutter-stage.h>
+#include <clutter/clutter-container.h>
+
+#if defined(GDK_WINDOWING_X11)
+
+#include <clutter/x11/clutter-x11.h>
+#include <gdk/gdkx.h>
+
+#elif defined(GDK_WINDOWING_WIN32)
+
+#include <clutter/clutter-win32.h>
+#include <gdk/gdkwin32.h>
+
+#endif /* HAVE_CLUTTER_GTK_{X11,WIN32} */
+
+#include "clutter-embed.h"
+
+G_DEFINE_TYPE (AisleriotClutterEmbed, aisleriot_clutter_embed, GTK_TYPE_WIDGET);
+
+#define AISLERIOT_CLUTTER_EMBED_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), AISLERIOT_TYPE_CLUTTER_EMBED, AisleriotClutterEmbedPrivate))
+
+struct _AisleriotClutterEmbedPrivate
+{
+  ClutterActor *stage;
+};
+
+static void
+aisleriot_clutter_embed_send_configure (AisleriotClutterEmbed *embed)
+{
+  GtkWidget *widget;
+  GdkEvent *event = gdk_event_new (GDK_CONFIGURE);
+
+  widget = GTK_WIDGET (embed);
+
+  event->configure.window = g_object_ref (widget->window);
+  event->configure.send_event = TRUE;
+  event->configure.x = widget->allocation.x;
+  event->configure.y = widget->allocation.y;
+  event->configure.width = widget->allocation.width;
+  event->configure.height = widget->allocation.height;
+  
+  gtk_widget_event (widget, event);
+  gdk_event_free (event);
+}
+
+static void
+aisleriot_clutter_embed_dispose (GObject *gobject)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (gobject)->priv;
+
+  if (priv->stage)
+    {
+      clutter_actor_destroy (priv->stage);
+      priv->stage = NULL;
+    }
+
+  G_OBJECT_CLASS (aisleriot_clutter_embed_parent_class)->dispose (gobject);
+}
+
+static void
+aisleriot_clutter_embed_show (GtkWidget *widget)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  /* Make sure the widget is realised before we show */
+  if (!GTK_WIDGET_REALIZED (widget))
+    gtk_widget_realize (widget);
+
+  clutter_actor_show (priv->stage);
+
+  GTK_WIDGET_CLASS (aisleriot_clutter_embed_parent_class)->show (widget);
+}
+
+static void
+aisleriot_clutter_embed_hide (GtkWidget *widget)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  clutter_actor_hide (priv->stage);
+
+  GTK_WIDGET_CLASS (aisleriot_clutter_embed_parent_class)->hide (widget);
+}
+
+static void
+aisleriot_clutter_embed_realize (GtkWidget *widget)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv; 
+  GdkWindowAttr attributes;
+  int attributes_mask;
+  
+  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
+  attributes.window_type = GDK_WINDOW_CHILD;
+  attributes.x = widget->allocation.x;
+  attributes.y = widget->allocation.y;
+  attributes.width = widget->allocation.width;
+  attributes.height = widget->allocation.height;
+  attributes.wclass = GDK_INPUT_OUTPUT;
+  attributes.visual = gtk_widget_get_visual (widget);
+  attributes.colormap = gtk_widget_get_colormap (widget);
+
+  /* NOTE: GDK_MOTION_NOTIFY above should be safe as Clutter does its own
+   *       throtling. 
+  */
+  attributes.event_mask = gtk_widget_get_events (widget)
+                        | GDK_EXPOSURE_MASK
+                        | GDK_BUTTON_PRESS_MASK
+                        | GDK_BUTTON_RELEASE_MASK
+                        | GDK_KEY_PRESS_MASK
+                        | GDK_KEY_RELEASE_MASK
+                        | GDK_POINTER_MOTION_MASK;
+
+  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
+                                   &attributes,
+                                   attributes_mask);
+  gdk_window_set_user_data (widget->window, widget);
+
+  widget->style = gtk_style_attach (widget->style, widget->window);
+  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+  
+  gdk_window_set_back_pixmap (widget->window, NULL, FALSE);
+
+#if defined(GDK_WINDOWING_X11)
+  clutter_x11_set_stage_foreign (CLUTTER_STAGE (priv->stage), 
+                                 GDK_WINDOW_XID (widget->window));
+#elif defined(GDK_WINDOWING_WIN32)
+  clutter_win32_set_stage_foreign (CLUTTER_STAGE (priv->stage), 
+				   GDK_WINDOW_HWND (widget->window));
+#endif /* HAVE_CLUTTER_GTK_{X11,WIN32} */
+
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (priv->stage));
+
+  aisleriot_clutter_embed_send_configure (AISLERIOT_CLUTTER_EMBED (widget));
+}
+
+static void
+aisleriot_clutter_embed_size_allocate (GtkWidget     *widget,
+                                 GtkAllocation *allocation)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  widget->allocation = *allocation;
+
+  if (GTK_WIDGET_REALIZED (widget))
+    {
+      gdk_window_move_resize (widget->window,
+                              allocation->x, allocation->y,
+                              allocation->width, allocation->height);
+
+      aisleriot_clutter_embed_send_configure (AISLERIOT_CLUTTER_EMBED (widget));
+    }
+
+  clutter_actor_set_size (priv->stage,
+                          allocation->width,
+                          allocation->height);
+
+  clutter_actor_queue_relayout (priv->stage);
+}
+
+static gboolean
+aisleriot_clutter_embed_motion_notify_event (GtkWidget      *widget,
+                                       GdkEventMotion *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+  ClutterEvent cevent = { 0, };
+
+  cevent.type = CLUTTER_MOTION;
+  cevent.any.stage = CLUTTER_STAGE (priv->stage);
+  cevent.motion.x = event->x;
+  cevent.motion.y = event->y;
+  cevent.motion.time = event->time;
+
+  clutter_do_event (&cevent);
+
+  /* doh - motion events can push ENTER/LEAVE events onto Clutters
+   * internal event queue which we do really ever touch (essentially
+   * proxying from gtks queue). The below pumps them back out and
+   * processes.
+   * *could* be side effects with below though doubful as no other
+   * events reach the queue (we shut down event collection). Maybe
+   * a peek_mask type call could be even safer. 
+  */
+  while (clutter_events_pending())
+    {
+      ClutterEvent *ev = clutter_event_get ();
+      if (ev)
+        {
+          clutter_do_event (ev);
+          clutter_event_free (ev);
+        }
+    }
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_button_event (GtkWidget      *widget,
+                                GdkEventButton *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+  ClutterEvent cevent = { 0, };
+
+  if (event->type == GDK_BUTTON_PRESS ||
+      event->type == GDK_2BUTTON_PRESS ||
+      event->type == GDK_3BUTTON_PRESS)
+    cevent.type = cevent.button.type = CLUTTER_BUTTON_PRESS;
+  else if (event->type == GDK_BUTTON_RELEASE)
+    cevent.type = cevent.button.type = CLUTTER_BUTTON_RELEASE;
+  else
+    return FALSE;
+
+  cevent.any.stage = CLUTTER_STAGE (priv->stage);
+  cevent.button.x = event->x;
+  cevent.button.y = event->y;
+  cevent.button.time = event->time;
+  cevent.button.click_count =
+    (event->type == GDK_BUTTON_PRESS ? 1
+                                     : (event->type == GDK_2BUTTON_PRESS ? 2
+                                                                         : 3));
+  cevent.button.modifier_state = event->state;
+  cevent.button.button = event->button;
+
+  clutter_do_event (&cevent);
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_key_event (GtkWidget   *widget,
+                             GdkEventKey *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+  ClutterEvent cevent = { 0, };
+
+  if (event->type == GDK_KEY_PRESS)
+    cevent.type = cevent.key.type = CLUTTER_KEY_PRESS;
+  else if (event->type == GDK_KEY_RELEASE)
+    cevent.type = cevent.key.type = CLUTTER_KEY_RELEASE;
+  else
+    return FALSE;
+
+  cevent.any.stage = CLUTTER_STAGE (priv->stage);
+  cevent.key.time = event->time;
+  cevent.key.modifier_state = event->state;
+  cevent.key.keyval = event->keyval;
+  cevent.key.hardware_keycode = event->hardware_keycode;
+
+  clutter_do_event (&cevent);
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_expose_event (GtkWidget      *widget,
+                                GdkEventExpose *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  if (CLUTTER_ACTOR_IS_VISIBLE (priv->stage))
+    clutter_actor_queue_redraw (priv->stage);
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_map_event (GtkWidget	 *widget,
+                             GdkEventAny *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  /* The backend wont get the XEvent as we go strait to do_event().
+   * So we have to make sure we set the event here.
+  */
+  CLUTTER_ACTOR_SET_FLAGS (priv->stage, CLUTTER_ACTOR_MAPPED);
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_focus_out (GtkWidget     *widget,
+                             GdkEventFocus *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  /* give back key focus to the stage */
+  clutter_stage_set_key_focus (CLUTTER_STAGE (priv->stage), NULL);
+
+  return FALSE;
+}
+
+static gboolean
+aisleriot_clutter_embed_scroll_event (GtkWidget      *widget,
+                                GdkEventScroll *event)
+{
+  AisleriotClutterEmbedPrivate *priv = AISLERIOT_CLUTTER_EMBED (widget)->priv;
+
+  ClutterEvent cevent = { 0, };
+
+  if (event->type == GDK_SCROLL)
+    cevent.type = cevent.scroll.type = CLUTTER_SCROLL;
+  else
+    return FALSE;
+
+  cevent.any.stage = CLUTTER_STAGE (priv->stage);
+  cevent.scroll.x = (gint) event->x;
+  cevent.scroll.y = (gint) event->y;
+  cevent.scroll.time = event->time;
+  cevent.scroll.direction = event->direction;
+  cevent.scroll.modifier_state = event->state;
+
+  clutter_do_event (&cevent);
+
+  return FALSE;
+}
+
+static void
+aisleriot_clutter_embed_class_init (AisleriotClutterEmbedClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  g_type_class_add_private (klass, sizeof (AisleriotClutterEmbedPrivate));
+
+  gobject_class->dispose = aisleriot_clutter_embed_dispose;
+
+  widget_class->size_allocate = aisleriot_clutter_embed_size_allocate;
+  widget_class->realize = aisleriot_clutter_embed_realize;
+  widget_class->show = aisleriot_clutter_embed_show;
+  widget_class->hide = aisleriot_clutter_embed_hide;
+  widget_class->button_press_event = aisleriot_clutter_embed_button_event;
+  widget_class->button_release_event = aisleriot_clutter_embed_button_event;
+  widget_class->key_press_event = aisleriot_clutter_embed_key_event;
+  widget_class->key_release_event = aisleriot_clutter_embed_key_event;
+  widget_class->motion_notify_event = aisleriot_clutter_embed_motion_notify_event;
+  widget_class->expose_event = aisleriot_clutter_embed_expose_event;
+  widget_class->map_event = aisleriot_clutter_embed_map_event;
+  widget_class->focus_out_event = aisleriot_clutter_embed_focus_out;
+  widget_class->scroll_event = aisleriot_clutter_embed_scroll_event;
+}
+
+static void
+aisleriot_clutter_embed_init (AisleriotClutterEmbed *embed)
+{
+  AisleriotClutterEmbedPrivate *priv;
+
+  embed->priv = priv = AISLERIOT_CLUTTER_EMBED_GET_PRIVATE (embed);
+
+  GTK_WIDGET_SET_FLAGS (embed, GTK_CAN_FOCUS);
+
+  /* disable double-buffering: it's automatically provided
+   * by OpenGL
+   */
+  gtk_widget_set_double_buffered (GTK_WIDGET (embed), FALSE);
+
+  /* we always create new stages rather than use the default */
+  priv->stage = clutter_stage_new ();
+
+  /* we must realize the stage to get it ready for embedding */
+  clutter_actor_realize (priv->stage);
+
+#ifdef GDK_WINDOWING_X11
+  {
+    const XVisualInfo *xvinfo;
+    GdkVisual *visual;
+    GdkColormap *colormap;
+
+    /* We need to use the colormap from the Clutter visual */
+    xvinfo = clutter_x11_get_stage_visual (CLUTTER_STAGE (priv->stage));
+    visual = gdk_x11_screen_lookup_visual (gdk_screen_get_default (),
+                                           xvinfo->visualid);
+    colormap = gdk_colormap_new (visual, FALSE);
+    gtk_widget_set_colormap (GTK_WIDGET (embed), colormap);
+  }
+#endif
+}
+
+/**
+ * aisleriot_clutter_init:
+ * @argc: pointer to the arguments count, or %NULL
+ * @argv: pointer to the arguments vector, or %NULL
+ *
+ * This function should be called instead of clutter_init() and
+ * gtk_init().
+ *
+ * Return value: %CLUTTER_INIT_SUCCESS on success, a negative integer
+ *   on failure.
+ *
+ * Since: 0.8
+ */
+ClutterInitError
+aisleriot_clutter_init (int    *argc,
+                  char ***argv)
+{
+  if (!gtk_init_check (argc, argv))
+    return AISLERIOT_CLUTTER_INIT_ERROR_GTK;
+
+#if defined(GDK_WINDOWING_X11)
+  clutter_x11_set_display (GDK_DISPLAY());
+  clutter_x11_disable_event_retrieval ();
+#elif defined(GDK_WINDOWING_WIN32)
+  clutter_win32_disable_event_retrieval ();
+#endif /* HAVE_CLUTTER_GTK_{X11,WIN32} */
+
+  return clutter_init (argc, argv);
+}
+
+/**
+ * aisleriot_clutter_embed_new:
+ *
+ * Creates a new #AisleriotClutterEmbed widget. This widget can be
+ * used to build a scene using Clutter API into a GTK+ application.
+ *
+ * Return value: the newly created #AisleriotClutterEmbed
+ *
+ * Since: 0.6
+ */
+GtkWidget *
+aisleriot_clutter_embed_new (void)
+{
+  return g_object_new (AISLERIOT_TYPE_CLUTTER_EMBED, NULL);
+}
+
+/**
+ * aisleriot_clutter_embed_get_stage:
+ * @embed: a #AisleriotClutterEmbed
+ *
+ * Retrieves the #ClutterStage from @embed. The returned stage can be
+ * used to add actors to the Clutter scene.
+ *
+ * Return value: the Clutter stage. You should never destroy or unref
+ *   the returned actor.
+ *
+ * Since: 0.6
+ */
+ClutterActor *
+aisleriot_clutter_embed_get_stage (AisleriotClutterEmbed *embed)
+{
+  g_return_val_if_fail (AISLERIOT_IS_CLUTTER_EMBED (embed), NULL);
+
+  return embed->priv->stage;
+}

Added: trunk/aisleriot/clutter-embed.h
==============================================================================
--- (empty file)
+++ trunk/aisleriot/clutter-embed.h	Thu Oct 23 14:22:47 2008
@@ -0,0 +1,103 @@
+/* gtk-clutter-embed.h: Embeddable ClutterStage
+ *
+ * Copyright (C) 2007 OpenedHand
+ *
+ * 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 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 see <http://www.fsf.org/licensing>.
+ *
+ * Authors:
+ *   Iain Holmes  <iain openedhand com>
+ *   Emmanuele Bassi  <ebassi openedhand com>
+ */
+
+#ifndef __AISLERIOT_CLUTTER_EMBED_H__
+#define __AISLERIOT_CLUTTER_EMBED_H__
+
+#include <gtk/gtk.h>
+#include <clutter/clutter.h>
+
+G_BEGIN_DECLS
+
+#define AISLERIOT_TYPE_CLUTTER_EMBED          (aisleriot_clutter_embed_get_type ())
+#define AISLERIOT_CLUTTER_EMBED(o)            (G_TYPE_CHECK_INSTANCE_CAST ((o), AISLERIOT_TYPE_CLUTTER_EMBED, AisleriotClutterEmbed))
+#define AISLERIOT_IS_CLUTTER_EMBED(o)         (G_TYPE_CHECK_INSTANCE_TYPE ((o), AISLERIOT_TYPE_CLUTTER_EMBED))
+#define AISLERIOT_CLUTTER_EMBED_CLASS(k)      (G_TYPE_CHECK_CLASS_CAST ((k), AISLERIOT_TYPE_CLUTTER_EMBED, AisleriotClutterEmbedClass))
+#define AISLERIOT_IS_CLUTTER_EMBED_CLASS(k)   (G_TYPE_CHECK_CLASS_TYPE ((k), AISLERIOT_TYPE_CLUTTER_EMBED))
+#define AISLERIOT_CLUTTER_EMBED_GET_CLASS(o)  (G_TYPE_INSTANCE_GET_CLASS ((o), AISLERIOT_TYPE_CLUTTER_EMBED, AisleriotClutterEmbedClass))
+
+typedef struct _AisleriotClutterEmbed         AisleriotClutterEmbed;
+typedef struct _AisleriotClutterEmbedPrivate  AisleriotClutterEmbedPrivate;
+typedef struct _AisleriotClutterEmbedClass    AisleriotClutterEmbedClass;
+
+/**
+ * ClutterAisleriotInitError:
+ * @CLUTTER_INIT_ERROR_LAST: Placeholder
+ * @CLUTTER_INIT_ERROR_GTK: Unable to initialize GTK+
+ *
+ * Extension of the #ClutterInitError enumeration for the integration
+ * with GTK+
+ *
+ * Since: 0.8
+ */
+typedef enum {
+  AISLERIOT_CLUTTER_INIT_ERROR_LAST = CLUTTER_INIT_ERROR_INTERNAL,
+
+  AISLERIOT_CLUTTER_INIT_ERROR_GTK  = (AISLERIOT_CLUTTER_INIT_ERROR_LAST - 1)
+} ClutterAisleriotInitError;
+
+/**
+ * AisleriotClutterEmbed:
+ *
+ * A #GtkWidget containing the default Clutter stage.
+ *
+ * Since: 0.6
+ */
+struct _AisleriotClutterEmbed
+{
+  /*< private >*/
+  GtkWidget parent_instance;
+
+  AisleriotClutterEmbedPrivate *priv;
+};
+
+/**
+ * AisleriotClutterEmbedClass:
+ *
+ * Base class for #AisleriotClutterEmbed.
+ *
+ * Since: 0.6
+ */
+struct _AisleriotClutterEmbedClass
+{
+  /*< private >*/
+  GtkWidgetClass parent_class;
+
+  /* padding for future expansion */
+  void (*_clutter_gtk_reserved1) (void);
+  void (*_clutter_gtk_reserved2) (void);
+  void (*_clutter_gtk_reserved3) (void);
+  void (*_clutter_gtk_reserved4) (void);
+  void (*_clutter_gtk_reserved5) (void);
+  void (*_clutter_gtk_reserved6) (void);
+};
+
+GType         aisleriot_clutter_embed_get_type  (void) G_GNUC_CONST;
+GtkWidget *   aisleriot_clutter_embed_new       (void);
+ClutterActor *aisleriot_clutter_embed_get_stage (AisleriotClutterEmbed *embed);
+
+ClutterInitError aisleriot_clutter_init (gint    *argc,
+                                   gchar ***argv);
+
+G_END_DECLS
+
+#endif /* __AISLERIOT_CLUTTER_EMBED_H__ */
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