[gtk+/gdk-backend] Add vfuncs for atoms

[Matthias Clasen <matthiasc src gnome org>]

commit 75020fc0261553a6f683cbce3f38ecc9ba10dd27
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Dec 16 00:37:39 2010 -0500

    Add vfuncs for atoms

 gdk/gdkdisplaymanager.c         |   66 +++++++++++++++++++++++++++
 gdk/gdkdisplaymanagerprivate.h  |    5 ++
 gdk/x11/gdkdisplaymanager-x11.c |    2 +
 gdk/x11/gdkprivate-x11.h        |   14 ++++--
 gdk/x11/gdkproperty-x11.c       |   93 +++++++++------------------------------
 5 files changed, 104 insertions(+), 76 deletions(-)
---
diff --git a/gdk/gdkdisplaymanager.c b/gdk/gdkdisplaymanager.c
index 7cb067e..60f5302 100644
--- a/gdk/gdkdisplaymanager.c
+++ b/gdk/gdkdisplaymanager.c
@@ -286,3 +286,69 @@ gdk_display_manager_open_display (GdkDisplayManager *manager,
 {
   return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->open_display (manager, name);
 }
+
+/**
+ * gdk_atom_intern:
+ * @atom_name: a string.
+ * @only_if_exists: if %TRUE, GDK is allowed to not create a new atom, but
+ *   just return %GDK_NONE if the requested atom doesn't already
+ *   exists. Currently, the flag is ignored, since checking the
+ *   existance of an atom is as expensive as creating it.
+ *
+ * Finds or creates an atom corresponding to a given string.
+ *
+ * Returns: the atom corresponding to @atom_name.
+ */
+GdkAtom
+gdk_atom_intern (const gchar *atom_name,
+                 gboolean     only_if_exists)
+{
+  GdkDisplayManager *manager = gdk_display_manager_get ();
+
+  return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->atom_intern (manager, atom_name, TRUE);
+}
+
+/**
+ * gdk_atom_intern_static_string:
+ * @atom_name: a static string
+ *
+ * Finds or creates an atom corresponding to a given string.
+ *
+ * Note that this function is identical to gdk_atom_intern() except
+ * that if a new #GdkAtom is created the string itself is used rather
+ * than a copy. This saves memory, but can only be used if the string
+ * will <emphasis>always</emphasis> exist. It can be used with statically
+ * allocated strings in the main program, but not with statically
+ * allocated memory in dynamically loaded modules, if you expect to
+ * ever unload the module again (e.g. do not use this function in
+ * GTK+ theme engines).
+ *
+ * Returns: the atom corresponding to @atom_name
+ *
+ * Since: 2.10
+ */
+GdkAtom
+gdk_atom_intern_static_string (const gchar *atom_name)
+{
+  GdkDisplayManager *manager = gdk_display_manager_get ();
+
+  return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->atom_intern (manager, atom_name, FALSE);
+}
+
+/**
+ * gdk_atom_name:
+ * @atom: a #GdkAtom.
+ *
+ * Determines the string corresponding to an atom.
+ *
+ * Returns: a newly-allocated string containing the string
+ *   corresponding to @atom. When you are done with the
+ *   return value, you should free it using g_free().
+ */
+gchar *
+gdk_atom_name (GdkAtom atom)
+{
+  GdkDisplayManager *manager = gdk_display_manager_get ();
+
+  return GDK_DISPLAY_MANAGER_GET_CLASS (manager)->get_atom_name (manager, atom);
+}
diff --git a/gdk/gdkdisplaymanagerprivate.h b/gdk/gdkdisplaymanagerprivate.h
index f10d00a..70afd7d 100644
--- a/gdk/gdkdisplaymanagerprivate.h
+++ b/gdk/gdkdisplaymanagerprivate.h
@@ -39,6 +39,11 @@ struct _GdkDisplayManagerClass
                                        GdkDisplay        *display);
   GdkDisplay * (*open_display)        (GdkDisplayManager *manager,
                                        const gchar       *name);
+  GdkAtom      (*atom_intern)         (GdkDisplayManager *manager,
+                                       const gchar       *atom_name,
+                                       gboolean           copy_name);
+  gchar *      (*get_atom_name)       (GdkDisplayManager *manager,
+                                       GdkAtom            atom);
 
   /* signals */
   void         (*display_opened)      (GdkDisplayManager *manager,
diff --git a/gdk/x11/gdkdisplaymanager-x11.c b/gdk/x11/gdkdisplaymanager-x11.c
index ddb9e4f..aef1a6d 100644
--- a/gdk/x11/gdkdisplaymanager-x11.c
+++ b/gdk/x11/gdkdisplaymanager-x11.c
@@ -102,6 +102,8 @@ gdk_display_manager_x11_class_init (GdkDisplayManagerX11Class *class)
   manager_class->list_displays = gdk_display_manager_x11_list_displays;
   manager_class->set_default_display = gdk_display_manager_x11_set_default_display;
   manager_class->get_default_display = gdk_display_manager_x11_get_default_display;
+  manager_class->atom_intern = _gdk_x11_display_manager_atom_intern;
+  manager_class->get_atom_name = _gdk_x11_display_manager_get_atom_name;
 }
 
 void
diff --git a/gdk/x11/gdkprivate-x11.h b/gdk/x11/gdkprivate-x11.h
index 2d5ba3e..ed95139 100644
--- a/gdk/x11/gdkprivate-x11.h
+++ b/gdk/x11/gdkprivate-x11.h
@@ -159,10 +159,16 @@ void _gdk_x11_device_check_extension_events   (GdkDevice  *device);
 
 GdkDeviceManager *_gdk_x11_device_manager_new (GdkDisplay *display);
 
-void _gdk_x11_display_manager_add_display     (GdkDisplayManager *manager,
-                                               GdkDisplay        *display);
-void _gdk_x11_display_manager_remove_display  (GdkDisplayManager *manager,
-                                               GdkDisplay        *display);
+void _gdk_x11_display_manager_add_display      (GdkDisplayManager *manager,
+                                                GdkDisplay        *display);
+void _gdk_x11_display_manager_remove_display   (GdkDisplayManager *manager,
+                                                GdkDisplay        *display);
+
+GdkAtom _gdk_x11_display_manager_atom_intern   (GdkDisplayManager *manager,
+                                                const gchar       *atom_name,
+                                                gboolean           copy_name);
+gchar * _gdk_x11_display_manager_get_atom_name (GdkDisplayManager *manager,
+                                                GdkAtom            atom);
 
 GdkCursor *_gdk_x11_display_get_cursor_for_type     (GdkDisplay    *display,
                                                      GdkCursorType  type);
diff --git a/gdk/x11/gdkproperty-x11.c b/gdk/x11/gdkproperty-x11.c
index fdc32a4..d0ec2d7 100644
--- a/gdk/x11/gdkproperty-x11.c
+++ b/gdk/x11/gdkproperty-x11.c
@@ -393,87 +393,44 @@ virtual_atom_check_init (void)
   if (!virtual_atom_hash)
     {
       gint i;
-      
+
       virtual_atom_hash = g_hash_table_new (g_str_hash, g_str_equal);
       virtual_atom_array = g_ptr_array_new ();
-      
+
       for (i = 0; i < G_N_ELEMENTS (xatoms_offset); i++)
-	{
-	  g_ptr_array_add (virtual_atom_array, (gchar *)(xatoms_string + xatoms_offset[i]));
-	  g_hash_table_insert (virtual_atom_hash, (gchar *)(xatoms_string + xatoms_offset[i]),
-			       GUINT_TO_POINTER (i));
-	}
+        {
+          g_ptr_array_add (virtual_atom_array, (gchar *)(xatoms_string + xatoms_offset[i]));
+          g_hash_table_insert (virtual_atom_hash, (gchar *)(xatoms_string + xatoms_offset[i]),
+                               GUINT_TO_POINTER (i));
+        }
     }
 }
 
-static GdkAtom
-intern_atom (const gchar *atom_name, 
-	     gboolean     dup)
+GdkAtom
+_gdk_x11_display_manager_atom_intern (GdkDisplayManager *manager,
+                                      const gchar       *atom_name,
+                                      gboolean           dup)
 {
   GdkAtom result;
 
   virtual_atom_check_init ();
-  
+
   result = GDK_POINTER_TO_ATOM (g_hash_table_lookup (virtual_atom_hash, atom_name));
   if (!result)
     {
       result = INDEX_TO_ATOM (virtual_atom_array->len);
-      
+
       g_ptr_array_add (virtual_atom_array, dup ? g_strdup (atom_name) : (gchar *)atom_name);
-      g_hash_table_insert (virtual_atom_hash, 
-			   g_ptr_array_index (virtual_atom_array,
-					      ATOM_TO_INDEX (result)),
-			   GDK_ATOM_TO_POINTER (result));
+      g_hash_table_insert (virtual_atom_hash,
+                           g_ptr_array_index (virtual_atom_array,
+                                              ATOM_TO_INDEX (result)),
+                                              GDK_ATOM_TO_POINTER (result));
     }
 
   return result;
 }
 
-/**
- * gdk_atom_intern:
- * @atom_name: a string.
- * @only_if_exists: if %TRUE, GDK is allowed to not create a new atom, but
- *   just return %GDK_NONE if the requested atom doesn't already
- *   exists. Currently, the flag is ignored, since checking the
- *   existance of an atom is as expensive as creating it.
- *
- * Finds or creates an atom corresponding to a given string.
- *
- * Returns: the atom corresponding to @atom_name.
- */
-GdkAtom
-gdk_atom_intern (const gchar *atom_name, 
-		 gboolean     only_if_exists)
-{
-  return intern_atom (atom_name, TRUE);
-}
-
-/**
- * gdk_atom_intern_static_string:
- * @atom_name: a static string
- *
- * Finds or creates an atom corresponding to a given string.
- *
- * Note that this function is identical to gdk_atom_intern() except
- * that if a new #GdkAtom is created the string itself is used rather 
- * than a copy. This saves memory, but can only be used if the string 
- * will <emphasis>always</emphasis> exist. It can be used with statically
- * allocated strings in the main program, but not with statically 
- * allocated memory in dynamically loaded modules, if you expect to
- * ever unload the module again (e.g. do not use this function in
- * GTK+ theme engines).
- *
- * Returns: the atom corresponding to @atom_name
- * 
- * Since: 2.10
- */
-GdkAtom
-gdk_atom_intern_static_string (const gchar *atom_name)
-{
-  return intern_atom (atom_name, FALSE);
-}
-
-static G_CONST_RETURN char *
+static const gchar *
 get_atom_name (GdkAtom atom)
 {
   virtual_atom_check_init ();
@@ -484,18 +441,10 @@ get_atom_name (GdkAtom atom)
     return NULL;
 }
 
-/**
- * gdk_atom_name:
- * @atom: a #GdkAtom.
- *
- * Determines the string corresponding to an atom.
- *
- * Returns: a newly-allocated string containing the string
- *   corresponding to @atom. When you are done with the
- *   return value, you should free it using g_free().
- */
+
 gchar *
-gdk_atom_name (GdkAtom atom)
+_gdk_x11_display_manager_get_atom_name (GdkDisplayManager *manager,
+                                        GdkAtom            atom)
 {
   return g_strdup (get_atom_name (atom));
 }