Move GdkVisual parallel-implementable

It turned out no vfuncs were necessary. I've decided to move
the screen member up to GdkVisual, since it is the same in all
backends. The X11 backend subclasses now, to add the X members
that it needs to keep track of. GdkVisual and GdkVisualClass
are hidden now.

6 files changed, 151 insertions, 155 deletions

diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index b50ee9e24d..6defd11414 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -466,6 +466,36 @@ struct _GdkDragContext {
   GdkDevice *device;
 };
 
+struct _GdkVisual
+{
+  GObject parent_instance;
+
+  GdkVisualType type;
+  gint depth;
+  GdkByteOrder byte_order;
+  gint colormap_size;
+  gint bits_per_rgb;
+
+  guint32 red_mask;
+  gint red_shift;
+  gint red_prec;
+
+  guint32 green_mask;
+  gint green_shift;
+  gint green_prec;
+
+  guint32 blue_mask;
+  gint blue_shift;
+  gint blue_prec;
+
+  GdkScreen *screen;
+};
+
+struct _GdkVisualClass
+{
+  GObjectClass parent_class;
+};
+
 extern GSList    *_gdk_displays;
 extern gchar     *_gdk_display_name;
 extern gint       _gdk_screen_number;
diff --git a/gdk/gdkvisual.c b/gdk/gdkvisual.c
index 15f681d3c6..b0201b2599 100644
--- a/gdk/gdkvisual.c
+++ b/gdk/gdkvisual.c
@@ -25,7 +25,6 @@
 
 #include "gdkinternals.h"
 #include "gdkvisual.h"
-
 #include "gdkscreen.h"
 
 
@@ -55,6 +54,26 @@
  * then %GDK_VISUAL_STATIC_GRAY.
  */
 
+G_DEFINE_TYPE (GdkVisual, gdk_visual, G_TYPE_OBJECT)
+
+static void
+gdk_visual_init (GdkVisual *visual)
+{
+}
+
+static void
+gdk_visual_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (gdk_visual_parent_class)->finalize (object);
+}
+
+static void
+gdk_visual_class_init (GdkVisualClass *visual_class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (visual_class);
+
+  object_class->finalize = gdk_visual_finalize;
+}
 
 /**
  * gdk_list_visuals:
@@ -428,3 +447,21 @@ gdk_visual_get_blue_pixel_details (GdkVisual *visual,
   if (precision)
     *precision = visual->blue_prec;
 }
+
+/**
+ * gdk_visual_get_screen:
+ * @visual: a #GdkVisual
+ *
+ * Gets the screen to which this visual belongs
+ *
+ * Return value: (transfer none): the screen to which this visual belongs.
+ *
+ * Since: 2.2
+ */
+GdkScreen *
+gdk_visual_get_screen (GdkVisual *visual)
+{
+  g_return_val_if_fail (GDK_IS_VISUAL (visual), NULL);
+
+  return visual->screen;
+}
diff --git a/gdk/gdkvisual.h b/gdk/gdkvisual.h
index 5fa4ad919c..bee6426a59 100644
--- a/gdk/gdkvisual.h
+++ b/gdk/gdkvisual.h
@@ -42,7 +42,6 @@ G_BEGIN_DECLS
 #define GDK_IS_VISUAL_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_VISUAL))
 #define GDK_VISUAL_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_VISUAL, GdkVisualClass))
 
-typedef struct _GdkVisualPrivate  GdkVisualPrivate;
 typedef struct _GdkVisualClass    GdkVisualClass;
 
 /**
@@ -84,53 +83,7 @@ typedef enum
  *
  * The #GdkVisual structure contains information about
  * a particular visual.
- *
- * <example id="rgbmask">
- * <title>Constructing a pixel value from components</title>
- * <programlisting>
- * guint
- * pixel_from_rgb (GdkVisual *visual,
- *                 guchar r, guchar b, guchar g)
- * {
- *   return ((r >> (16 - visual->red_prec))   << visual->red_shift) |
- *          ((g >> (16 - visual->green_prec)) << visual->green_shift) |
- *          ((r >> (16 - visual->blue_prec))  << visual->blue_shift);
- * }
- * </programlisting>
- * </example>
  */
-struct _GdkVisual
-{
-  /*< private >*/
-  GObject parent_instance;
-
-  GdkVisualType GSEAL (type);      /* Type of visual this is (PseudoColor, TrueColor, etc) */
-  gint GSEAL (depth);              /* Bit depth of this visual */
-  GdkByteOrder GSEAL (byte_order);
-  gint GSEAL (colormap_size);      /* Size of a colormap for this visual */
-  gint GSEAL (bits_per_rgb);       /* Number of significant bits per red, green and blue. */
-
-  /* The red, green and blue masks, shifts and precisions refer
-   * to value needed to calculate pixel values in TrueColor and DirectColor
-   * visuals. The "mask" is the significant bits within the pixel. The
-   * "shift" is the number of bits left we must shift a primary for it
-   * to be in position (according to the "mask"). "prec" refers to how
-   * much precision the pixel value contains for a particular primary.
-   */
-  guint32 GSEAL (red_mask);
-  gint GSEAL (red_shift);
-  gint GSEAL (red_prec);
-
-  guint32 GSEAL (green_mask);
-  gint GSEAL (green_shift);
-  gint GSEAL (green_prec);
-
-  guint32 GSEAL (blue_mask);
-  gint GSEAL (blue_shift);
-  gint GSEAL (blue_prec);
-
-  GdkVisualPrivate *priv;
-};
 
 GType         gdk_visual_get_type            (void) G_GNUC_CONST;
 
@@ -152,7 +105,7 @@ void gdk_query_visual_types (GdkVisualType  **visual_types,
 GList* gdk_list_visuals (void);
 #endif
 
-GdkScreen *gdk_visual_get_screen (GdkVisual *visual);
+GdkScreen    *gdk_visual_get_screen (GdkVisual *visual);
 
 GdkVisualType gdk_visual_get_visual_type         (GdkVisual *visual);
 gint          gdk_visual_get_depth               (GdkVisual *visual);
diff --git a/gdk/x11/gdkprivate-x11.h b/gdk/x11/gdkprivate-x11.h
index efa886fd06..f3867ab679 100644
--- a/gdk/x11/gdkprivate-x11.h
+++ b/gdk/x11/gdkprivate-x11.h
@@ -148,7 +148,7 @@ void _gdk_screen_x11_events_init   (GdkScreen *screen);
 void _gdk_events_init           (GdkDisplay *display);
 void _gdk_events_uninit         (GdkDisplay *display);
 void _gdk_windowing_window_init (GdkScreen *screen);
-void _gdk_visual_init           (GdkScreen *screen);
+void _gdk_x11_visual_init       (GdkScreen *screen);
 void _gdk_x11_dnd_init          (GdkDisplay *display);
 
 void _gdk_x11_cursor_update_theme (GdkCursor *cursor);
diff --git a/gdk/x11/gdkscreen-x11.c b/gdk/x11/gdkscreen-x11.c
index f9cda4373e..8899170d58 100644
--- a/gdk/x11/gdkscreen-x11.c
+++ b/gdk/x11/gdkscreen-x11.c
@@ -810,7 +810,7 @@ _gdk_x11_screen_new (GdkDisplay *display,
   init_multihead (screen);
   init_randr_support (screen);
   
-  _gdk_visual_init (screen);
+  _gdk_x11_visual_init (screen);
   _gdk_windowing_window_init (screen);
   
   return screen;
diff --git a/gdk/x11/gdkvisual-x11.c b/gdk/x11/gdkvisual-x11.c
index f2ba3ca7f6..36ef9798f3 100644
--- a/gdk/x11/gdkvisual-x11.c
+++ b/gdk/x11/gdkvisual-x11.c
@@ -36,18 +36,20 @@
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 
-struct _GdkVisualPrivate
+typedef struct _GdkVisualX11 GdkVisualX11;
+typedef struct _GdkVisualClass GdkVisualX11Class;
+
+#define GDK_TYPE_VISUAL_X11 (gdk_visual_x11_get_type ())
+#define GDK_VISUAL_X11(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_VISUAL_X11, GdkVisualX11))
+
+struct _GdkVisualX11
 {
+  GdkVisual visual;
+
   Visual *xvisual;
-  GdkScreen *screen;
   Colormap colormap;
 };
 
-struct _GdkVisualClass
-{
-  GObjectClass parent_class;
-};
-
 static void     gdk_visual_add            (GdkVisual *visual);
 static void     gdk_visual_decompose_mask (gulong     mask,
 					   gint      *shift,
@@ -71,42 +73,36 @@ static const gchar *const visual_names[] =
 
 #endif /* G_ENABLE_DEBUG */
 
-G_DEFINE_TYPE (GdkVisual, gdk_visual, G_TYPE_OBJECT)
+G_DEFINE_TYPE (GdkVisualX11, gdk_visual_x11, GDK_TYPE_VISUAL)
 
 static void
-gdk_visual_finalize (GObject *object)
+gdk_visual_x11_init (GdkVisualX11 *visual_x11)
 {
-  GdkVisualPrivate *priv = (GdkVisualPrivate *) object;
-
-  if (priv->colormap != None)
-    XFreeColormap (GDK_SCREEN_XDISPLAY (priv->screen),
-                   priv->colormap);
-
-  G_OBJECT_CLASS (gdk_visual_parent_class)->finalize (object);
+  visual_x11->colormap = None;
 }
 
 static void
-gdk_visual_class_init (GdkVisualClass *visual_class)
+gdk_visual_x11_finalize (GObject *object)
 {
-  GObjectClass *object_class = G_OBJECT_CLASS (visual_class);
+  GdkVisual *visual = (GdkVisual *)object;
+  GdkVisualX11 *visual_x11 = (GdkVisualX11 *)object;
 
-  g_type_class_add_private (object_class, sizeof (GdkVisualPrivate));
+  if (visual_x11->colormap != None)
+    XFreeColormap (GDK_SCREEN_XDISPLAY (visual->screen), visual_x11->colormap);
 
-  object_class->finalize = gdk_visual_finalize;
+  G_OBJECT_CLASS (gdk_visual_x11_parent_class)->finalize (object);
 }
 
 static void
-gdk_visual_init (GdkVisual *visual)
+gdk_visual_x11_class_init (GdkVisualX11Class *class)
 {
-  visual->priv = G_TYPE_INSTANCE_GET_PRIVATE (visual,
-                                              GDK_TYPE_VISUAL,
-                                              GdkVisualPrivate);
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
 
-  visual->priv->colormap = None;
+  object_class->finalize = gdk_visual_x11_finalize;
 }
 
 void
-_gdk_visual_init (GdkScreen *screen)
+_gdk_x11_visual_init (GdkScreen *screen)
 {
   static const gint possible_depths[8] = { 32, 30, 24, 16, 15, 8, 4, 1 };
   static const GdkVisualType possible_types[6] =
@@ -128,25 +124,25 @@ _gdk_visual_init (GdkScreen *screen)
   int nxvisuals;
   int nvisuals;
   int i, j;
-  
+
   g_return_if_fail (GDK_IS_SCREEN (screen));
   screen_x11 = GDK_SCREEN_X11 (screen);
 
   nxvisuals = 0;
   visual_template.screen = screen_x11->screen_num;
   visual_list = XGetVisualInfo (screen_x11->xdisplay, VisualScreenMask, &visual_template, &nxvisuals);
-  
+
   visuals = g_new (GdkVisual *, nxvisuals);
   for (i = 0; i < nxvisuals; i++)
-    visuals[i] = g_object_new (GDK_TYPE_VISUAL, NULL);
+    visuals[i] = g_object_new (GDK_TYPE_VISUAL_X11, NULL);
 
   default_xvisual = DefaultVisual (screen_x11->xdisplay, screen_x11->screen_num);
 
   nvisuals = 0;
   for (i = 0; i < nxvisuals; i++)
     {
-      visuals[nvisuals]->priv->screen = screen;
-      
+      visuals[nvisuals]->screen = screen;
+
       if (visual_list[i].depth >= 1)
 	{
 #ifdef __cplusplus
@@ -184,7 +180,7 @@ _gdk_visual_init (GdkScreen *screen)
 	  visuals[nvisuals]->blue_mask = visual_list[i].blue_mask;
 	  visuals[nvisuals]->colormap_size = visual_list[i].colormap_size;
 	  visuals[nvisuals]->bits_per_rgb = visual_list[i].bits_per_rgb;
-	  visuals[nvisuals]->priv->xvisual = visual_list[i].visual;
+	  GDK_VISUAL_X11 (visuals[nvisuals])->xvisual = visual_list[i].visual;
 
 	  if ((visuals[nvisuals]->type == GDK_VISUAL_TRUE_COLOR) ||
 	      (visuals[nvisuals]->type == GDK_VISUAL_DIRECT_COLOR))
@@ -215,7 +211,7 @@ _gdk_visual_init (GdkScreen *screen)
 	      visuals[nvisuals]->blue_shift = 0;
 	      visuals[nvisuals]->blue_prec = 0;
 	    }
-	  
+
 	  nvisuals += 1;
 	}
     }
@@ -259,11 +255,11 @@ _gdk_visual_init (GdkScreen *screen)
 
   for (i = 0; i < nvisuals; i++)
     {
-      if (default_xvisual->visualid == visuals[i]->priv->xvisual->visualid)
+      if (default_xvisual->visualid == GDK_VISUAL_X11 (visuals[i])->xvisual->visualid)
          {
- 	   screen_x11->system_visual = visuals[i];
-           visuals[i]->priv->colormap = DefaultColormap (screen_x11->xdisplay,
-                                                         screen_x11->screen_num);
+           screen_x11->system_visual = visuals[i];
+           GDK_VISUAL_X11 (visuals[i])->colormap =
+               DefaultColormap (screen_x11->xdisplay, screen_x11->screen_num);
          }
 
       /* For now, we only support 8888 ARGB for the "rgba visual".
@@ -275,11 +271,11 @@ _gdk_visual_init (GdkScreen *screen)
 	   visuals[i]->green_mask == 0x00ff00 &&
 	   visuals[i]->blue_mask  == 0x0000ff))
 	{
-	  screen_x11->rgba_visual = GDK_VISUAL (visuals[i]);
-	}
+	  screen_x11->rgba_visual = visuals[i];
+        }
     }
 
-#ifdef G_ENABLE_DEBUG 
+#ifdef G_ENABLE_DEBUG
   if (_gdk_debug_flags & GDK_DEBUG_MISC)
     {
       static const gchar *const visual_names[] =
@@ -293,9 +289,7 @@ _gdk_visual_init (GdkScreen *screen)
       };
 
       for (i = 0; i < nvisuals; i++)
-        g_message ("visual: %s: %d",
-                   visual_names[visuals[i]->type],
-                   visuals[i]->depth);
+        g_message ("visual: %s: %d", visual_names[visuals[i]->type], visuals[i]->depth);
     }
 #endif /* G_ENABLE_DEBUG */
 
@@ -329,7 +323,7 @@ _gdk_visual_init (GdkScreen *screen)
     }
 
   for (i = 0; i < nvisuals; i++)
-    gdk_visual_add ((GdkVisual*) visuals[i]);
+    gdk_visual_add (visuals[i]);
 
   if (screen_x11->navailable_types == 0)
     g_error ("unable to find a usable visual type");
@@ -351,7 +345,7 @@ _gdk_screen_x11_visual_get_best_type (GdkScreen *screen)
 }
 
 GdkVisual *
-_gdk_screen_x11_get_system_visual (GdkScreen * screen)
+_gdk_screen_x11_get_system_visual (GdkScreen *screen)
 {
   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 
@@ -363,12 +357,12 @@ _gdk_screen_x11_visual_get_best (GdkScreen *screen)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
 
-  return (GdkVisual *)screen_x11->visuals[0];
+  return screen_x11->visuals[0];
 }
 
 GdkVisual*
 _gdk_screen_x11_visual_get_best_with_depth (GdkScreen *screen,
-					    gint depth)
+                                            gint       depth)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
   GdkVisual *return_val;
@@ -378,7 +372,7 @@ _gdk_screen_x11_visual_get_best_with_depth (GdkScreen *screen,
   for (i = 0; i < screen_x11->nvisuals; i++)
     if (depth == screen_x11->visuals[i]->depth)
       {
-	return_val = (GdkVisual *) screen_x11->visuals[i];
+	return_val = screen_x11->visuals[i];
 	break;
       }
 
@@ -386,8 +380,8 @@ _gdk_screen_x11_visual_get_best_with_depth (GdkScreen *screen,
 }
 
 GdkVisual*
-_gdk_screen_x11_visual_get_best_with_type (GdkScreen *screen,
-					   GdkVisualType visual_type)
+_gdk_screen_x11_visual_get_best_with_type (GdkScreen     *screen,
+                                           GdkVisualType  visual_type)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
   GdkVisual *return_val;
@@ -397,7 +391,7 @@ _gdk_screen_x11_visual_get_best_with_type (GdkScreen *screen,
   for (i = 0; i < screen_x11->nvisuals; i++)
     if (visual_type == screen_x11->visuals[i]->type)
       {
-	return_val = (GdkVisual *) screen_x11->visuals[i];
+	return_val = screen_x11->visuals[i];
 	break;
       }
 
@@ -405,9 +399,9 @@ _gdk_screen_x11_visual_get_best_with_type (GdkScreen *screen,
 }
 
 GdkVisual*
-_gdk_screen_x11_visual_get_best_with_both (GdkScreen *screen,
-					   gint          depth,
-					   GdkVisualType visual_type)
+_gdk_screen_x11_visual_get_best_with_both (GdkScreen     *screen,
+                                           gint           depth,
+                                           GdkVisualType  visual_type)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
   GdkVisual *return_val;
@@ -418,7 +412,7 @@ _gdk_screen_x11_visual_get_best_with_both (GdkScreen *screen,
     if ((depth == screen_x11->visuals[i]->depth) &&
 	(visual_type == screen_x11->visuals[i]->type))
       {
-	return_val = (GdkVisual *) screen_x11->visuals[i];
+	return_val = screen_x11->visuals[i];
 	break;
       }
 
@@ -426,9 +420,9 @@ _gdk_screen_x11_visual_get_best_with_both (GdkScreen *screen,
 }
 
 void
-_gdk_screen_x11_query_depths  (GdkScreen *screen,
-			       gint **depths,
-			       gint  *count)
+_gdk_screen_x11_query_depths  (GdkScreen  *screen,
+                               gint      **depths,
+                               gint       *count)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
 
@@ -437,12 +431,12 @@ _gdk_screen_x11_query_depths  (GdkScreen *screen,
 }
 
 void
-_gdk_screen_x11_query_visual_types (GdkScreen *screen,
-				    GdkVisualType **visual_types,
-				    gint           *count)
+_gdk_screen_x11_query_visual_types (GdkScreen      *screen,
+                                    GdkVisualType **visual_types,
+                                    gint           *count)
 {
   GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
-  
+
   *count = screen_x11->navailable_types;
   *visual_types = screen_x11->available_types;
 }
@@ -456,7 +450,7 @@ _gdk_screen_x11_list_visuals (GdkScreen *screen)
 
   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
   screen_x11 = GDK_SCREEN_X11 (screen);
-  
+
   list = NULL;
 
   for (i = 0; i < screen_x11->nvisuals; ++i)
@@ -479,7 +473,7 @@ _gdk_screen_x11_list_visuals (GdkScreen *screen)
  */
 GdkVisual *
 gdk_x11_screen_lookup_visual (GdkScreen *screen,
-			      VisualID   xvisualid)
+                              VisualID   xvisualid)
 {
   int i;
   GdkScreenX11 *screen_x11;
@@ -487,8 +481,8 @@ gdk_x11_screen_lookup_visual (GdkScreen *screen,
   screen_x11 = GDK_SCREEN_X11 (screen);
 
   for (i = 0; i < screen_x11->nvisuals; i++)
-    if (xvisualid == screen_x11->visuals[i]->priv->xvisual->visualid)
-      return (GdkVisual *)  screen_x11->visuals[i];
+    if (xvisualid == GDK_VISUAL_X11 (screen_x11->visuals[i])->xvisual->visualid)
+      return screen_x11->visuals[i];
 
   return NULL;
 }
@@ -496,9 +490,9 @@ gdk_x11_screen_lookup_visual (GdkScreen *screen,
 /**
  * gdkx_visual_get:
  * @xvisualid: a X visual id.
- * 
- * Returns a #GdkVisual corresponding to a X visual. 
- * 
+ *
+ * Returns a #GdkVisual corresponding to a X visual.
+ *
  * Return value: the #GdkVisual.
  **/
 GdkVisual*
@@ -510,19 +504,19 @@ gdkx_visual_get (VisualID xvisualid)
 static void
 gdk_visual_add (GdkVisual *visual)
 {
-  GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (visual->priv->screen);
-  
+  GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (visual->screen);
+
   if (!screen_x11->visual_hash)
     screen_x11->visual_hash = g_hash_table_new ((GHashFunc) gdk_visual_hash,
                                                 (GEqualFunc) gdk_visual_equal);
 
-  g_hash_table_insert (screen_x11->visual_hash, visual->priv->xvisual, visual);
+  g_hash_table_insert (screen_x11->visual_hash, GDK_VISUAL_X11 (visual)->xvisual, visual);
 }
 
 static void
 gdk_visual_decompose_mask (gulong  mask,
-			   gint   *shift,
-			   gint   *prec)
+                           gint   *shift,
+                           gint   *prec)
 {
   *shift = 0;
   *prec = 0;
@@ -554,7 +548,7 @@ gdk_visual_hash (Visual *key)
 
 static gboolean
 gdk_visual_equal (Visual *a,
-		  Visual *b)
+                  Visual *b)
 {
   return (a->visualid == b->visualid);
 }
@@ -570,53 +564,35 @@ gdk_visual_equal (Visual *a,
 Colormap
 _gdk_visual_get_x11_colormap (GdkVisual *visual)
 {
-  GdkVisualPrivate *priv;
+  GdkVisualX11 *visual_x11;
 
   g_return_val_if_fail (GDK_IS_VISUAL (visual), None);
 
-  priv = visual->priv;
+  visual_x11 = GDK_VISUAL_X11 (visual);
 
-  if (priv->colormap == None)
+  if (visual_x11->colormap == None)
     {
-      priv->colormap = XCreateColormap (GDK_SCREEN_XDISPLAY (priv->screen),
-                                        GDK_SCREEN_XROOTWIN (priv->screen),
-                                        GDK_VISUAL_XVISUAL (visual),
-                                        AllocNone);
+      visual_x11->colormap = XCreateColormap (GDK_SCREEN_XDISPLAY (visual->screen),
+                                              GDK_SCREEN_XROOTWIN (visual->screen),
+                                              visual_x11->xvisual,
+                                              AllocNone);
     }
 
-  return priv->colormap;
+  return visual_x11->colormap;
 }
 
 /**
  * gdk_x11_visual_get_xvisual:
  * @visual: a #GdkVisual.
- * 
+ *
  * Returns the X visual belonging to a #GdkVisual.
- * 
+ *
  * Return value: an Xlib <type>Visual*</type>.
  **/
 Visual *
 gdk_x11_visual_get_xvisual (GdkVisual *visual)
 {
-  g_return_val_if_fail (visual != NULL, NULL);
-
-  return visual->priv->xvisual;
-}
-
-/**
- * gdk_visual_get_screen:
- * @visual: a #GdkVisual
- * 
- * Gets the screen to which this visual belongs
- * 
- * Return value: (transfer none): the screen to which this visual belongs.
- *
- * Since: 2.2
- **/
-GdkScreen *
-gdk_visual_get_screen (GdkVisual *visual)
-{
   g_return_val_if_fail (GDK_IS_VISUAL (visual), NULL);
 
-  return visual->priv->screen;
+  return GDK_VISUAL_X11 (visual)->xvisual;
 }