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[gtk+] Move GtkTextBuffer sealed attributes to private struct.

commit a1be4eccb0cf3174860d9fc23f75aad3421f1886
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Jul 13 11:23:57 2010 +0200

    Move GtkTextBuffer sealed attributes to private struct.

 gtk/gtktextbuffer.c          |  167 +++++++++++++++++++++++++-----------------
 gtk/gtktextbuffer.h          |   18 +----
 gtk/gtktextbufferserialize.c |   16 +++-
 3 files changed, 112 insertions(+), 89 deletions(-)
---
diff --git a/gtk/gtktextbuffer.c b/gtk/gtktextbuffer.c
index 2fec1e5..63d19c3 100644
--- a/gtk/gtktextbuffer.c
+++ b/gtk/gtktextbuffer.c
@@ -44,7 +44,7 @@
 
 #define GTK_TEXT_BUFFER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_BUFFER, GtkTextBufferPrivate))
 
-typedef struct _GtkTextBufferPrivate GtkTextBufferPrivate;
+typedef struct _GtkTextLogAttrCache GtkTextLogAttrCache;
 
 struct _GtkTextBufferPrivate
 {
@@ -55,6 +55,21 @@ struct _GtkTextBufferPrivate
   GtkTargetList  *paste_target_list;
   GtkTargetEntry *paste_target_entries;
   gint            n_paste_target_entries;
+
+  GtkTextTagTable *tag_table;
+  GtkTextBTree *btree;
+
+  GSList *clipboard_contents_buffers;
+  GSList *selection_clipboards;
+
+  GtkTextLogAttrCache *log_attr_cache;
+
+  guint user_action_count;
+
+  /* Whether the buffer has been modified since last save */
+  guint modified : 1;
+
+  guint has_selection : 1;
 };
 
 
@@ -608,8 +623,10 @@ gtk_text_buffer_class_init (GtkTextBufferClass *klass)
 static void
 gtk_text_buffer_init (GtkTextBuffer *buffer)
 {
-  buffer->clipboard_contents_buffers = NULL;
-  buffer->tag_table = NULL;
+  buffer->priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+
+  buffer->priv->clipboard_contents_buffers = NULL;
+  buffer->priv->tag_table = NULL;
 
   /* allow copying of arbiatray stuff in the internal rich text format */
   gtk_text_buffer_register_serialize_tagset (buffer, NULL);
@@ -618,12 +635,14 @@ gtk_text_buffer_init (GtkTextBuffer *buffer)
 static void
 set_table (GtkTextBuffer *buffer, GtkTextTagTable *table)
 {
-  g_return_if_fail (buffer->tag_table == NULL);
+  GtkTextBufferPrivate *priv = buffer->priv;
+
+  g_return_if_fail (priv->tag_table == NULL);
 
   if (table)
     {
-      buffer->tag_table = table;
-      g_object_ref (buffer->tag_table);
+      priv->tag_table = table;
+      g_object_ref (priv->tag_table);
       _gtk_text_tag_table_add_buffer (table, buffer);
     }
 }
@@ -631,13 +650,15 @@ set_table (GtkTextBuffer *buffer, GtkTextTagTable *table)
 static GtkTextTagTable*
 get_table (GtkTextBuffer *buffer)
 {
-  if (buffer->tag_table == NULL)
+  GtkTextBufferPrivate *priv = buffer->priv;
+
+  if (priv->tag_table == NULL)
     {
-      buffer->tag_table = gtk_text_tag_table_new ();
-      _gtk_text_tag_table_add_buffer (buffer->tag_table, buffer);
+      priv->tag_table = gtk_text_tag_table_new ();
+      _gtk_text_tag_table_add_buffer (priv->tag_table, buffer);
     }
 
-  return buffer->tag_table;
+  return priv->tag_table;
 }
 
 static void
@@ -698,7 +719,7 @@ gtk_text_buffer_get_property (GObject         *object,
       }
 
     case PROP_HAS_SELECTION:
-      g_value_set_boolean (value, text_buffer->has_selection);
+      g_value_set_boolean (value, text_buffer->priv->has_selection);
       break;
 
     case PROP_CURSOR_POSITION:
@@ -754,28 +775,30 @@ static void
 gtk_text_buffer_finalize (GObject *object)
 {
   GtkTextBuffer *buffer;
+  GtkTextBufferPrivate *priv;
 
   buffer = GTK_TEXT_BUFFER (object);
+  priv = buffer->priv;
 
   remove_all_selection_clipboards (buffer);
 
-  if (buffer->tag_table)
+  if (priv->tag_table)
     {
-      _gtk_text_tag_table_remove_buffer (buffer->tag_table, buffer);
-      g_object_unref (buffer->tag_table);
-      buffer->tag_table = NULL;
+      _gtk_text_tag_table_remove_buffer (priv->tag_table, buffer);
+      g_object_unref (priv->tag_table);
+      priv->tag_table = NULL;
     }
 
-  if (buffer->btree)
+  if (priv->btree)
     {
-      _gtk_text_btree_unref (buffer->btree);
-      buffer->btree = NULL;
+      _gtk_text_btree_unref (priv->btree);
+      priv->btree = NULL;
     }
 
-  if (buffer->log_attr_cache)
-    free_log_attr_cache (buffer->log_attr_cache);
+  if (priv->log_attr_cache)
+    free_log_attr_cache (priv->log_attr_cache);
 
-  buffer->log_attr_cache = NULL;
+  priv->log_attr_cache = NULL;
 
   gtk_text_buffer_free_target_lists (buffer);
 
@@ -785,11 +808,13 @@ gtk_text_buffer_finalize (GObject *object)
 static GtkTextBTree*
 get_btree (GtkTextBuffer *buffer)
 {
-  if (buffer->btree == NULL)
-    buffer->btree = _gtk_text_btree_new (gtk_text_buffer_get_tag_table (buffer),
-                                         buffer);
+  GtkTextBufferPrivate *priv = buffer->priv;
+
+  if (priv->btree == NULL)
+    priv->btree = _gtk_text_btree_new (gtk_text_buffer_get_tag_table (buffer),
+                                       buffer);
 
-  return buffer->btree;
+  return priv->btree;
 }
 
 GtkTextBTree*
@@ -1398,8 +1423,8 @@ gtk_text_buffer_insert_range (GtkTextBuffer     *buffer,
   g_return_if_fail (end != NULL);
   g_return_if_fail (gtk_text_iter_get_buffer (start) ==
                     gtk_text_iter_get_buffer (end));
-  g_return_if_fail (gtk_text_iter_get_buffer (start)->tag_table ==
-                    buffer->tag_table);  
+  g_return_if_fail (gtk_text_iter_get_buffer (start)->priv->tag_table ==
+                    buffer->priv->tag_table);
   g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
   
   gtk_text_buffer_real_insert_range (buffer, iter, start, end, FALSE);
@@ -1434,8 +1459,8 @@ gtk_text_buffer_insert_range_interactive (GtkTextBuffer     *buffer,
   g_return_val_if_fail (end != NULL, FALSE);
   g_return_val_if_fail (gtk_text_iter_get_buffer (start) ==
                         gtk_text_iter_get_buffer (end), FALSE);
-  g_return_val_if_fail (gtk_text_iter_get_buffer (start)->tag_table ==
-                        buffer->tag_table, FALSE);
+  g_return_val_if_fail (gtk_text_iter_get_buffer (start)->priv->tag_table ==
+                        buffer->priv->tag_table, FALSE);
 
   if (gtk_text_iter_can_insert (iter, default_editable))
     {
@@ -1545,7 +1570,7 @@ gtk_text_buffer_insert_with_tags_by_name  (GtkTextBuffer *buffer,
     {
       GtkTextTag *tag;
 
-      tag = gtk_text_tag_table_lookup (buffer->tag_table,
+      tag = gtk_text_tag_table_lookup (buffer->priv->tag_table,
                                        tag_name);
 
       if (tag == NULL)
@@ -1585,9 +1610,9 @@ gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
   update_selection_clipboards (buffer);
 
   has_selection = gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL);
-  if (has_selection != buffer->has_selection)
+  if (has_selection != buffer->priv->has_selection)
     {
-      buffer->has_selection = has_selection;
+      buffer->priv->has_selection = has_selection;
       g_object_notify (G_OBJECT (buffer), "has-selection");
     }
 
@@ -2481,7 +2506,7 @@ gtk_text_buffer_real_apply_tag (GtkTextBuffer     *buffer,
                                 const GtkTextIter *start,
                                 const GtkTextIter *end)
 {
-  if (tag->table != buffer->tag_table)
+  if (tag->table != buffer->priv->tag_table)
     {
       g_warning ("Can only apply tags that are in the tag table for the buffer");
       return;
@@ -2496,7 +2521,7 @@ gtk_text_buffer_real_remove_tag (GtkTextBuffer     *buffer,
                                  const GtkTextIter *start,
                                  const GtkTextIter *end)
 {
-  if (tag->table != buffer->tag_table)
+  if (tag->table != buffer->priv->tag_table)
     {
       g_warning ("Can only remove tags that are in the tag table for the buffer");
       return;
@@ -2530,9 +2555,9 @@ gtk_text_buffer_real_mark_set (GtkTextBuffer     *buffer,
                                                             NULL,
                                                             NULL);
 
-      if (has_selection != buffer->has_selection)
+      if (has_selection != buffer->priv->has_selection)
         {
-          buffer->has_selection = has_selection;
+          buffer->priv->has_selection = has_selection;
           g_object_notify (G_OBJECT (buffer), "has-selection");
         }
     }
@@ -2588,7 +2613,7 @@ gtk_text_buffer_apply_tag (GtkTextBuffer     *buffer,
   g_return_if_fail (end != NULL);
   g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
   g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
-  g_return_if_fail (tag->table == buffer->tag_table);
+  g_return_if_fail (tag->table == buffer->priv->tag_table);
   
   gtk_text_buffer_emit_tag (buffer, tag, TRUE, start, end);
 }
@@ -2617,7 +2642,7 @@ gtk_text_buffer_remove_tag (GtkTextBuffer     *buffer,
   g_return_if_fail (end != NULL);
   g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
   g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
-  g_return_if_fail (tag->table == buffer->tag_table);
+  g_return_if_fail (tag->table == buffer->priv->tag_table);
   
   gtk_text_buffer_emit_tag (buffer, tag, FALSE, start, end);
 }
@@ -2999,7 +3024,7 @@ gtk_text_buffer_get_modified (GtkTextBuffer *buffer)
 {
   g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
 
-  return buffer->modified;
+  return buffer->priv->modified;
 }
 
 /**
@@ -3023,11 +3048,11 @@ gtk_text_buffer_set_modified (GtkTextBuffer *buffer,
 
   fixed_setting = setting != FALSE;
 
-  if (buffer->modified == fixed_setting)
+  if (buffer->priv->modified == fixed_setting)
     return;
   else
     {
-      buffer->modified = fixed_setting;
+      buffer->priv->modified = fixed_setting;
       g_signal_emit (buffer, signals[MODIFIED_CHANGED], 0);
     }
 }
@@ -3047,7 +3072,7 @@ gtk_text_buffer_get_has_selection (GtkTextBuffer *buffer)
 {
   g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
 
-  return buffer->has_selection;
+  return buffer->priv->has_selection;
 }
 
 
@@ -3594,9 +3619,9 @@ static void
 update_selection_clipboards (GtkTextBuffer *buffer)
 {
   GtkTextBufferPrivate *priv;
-  GSList               *tmp_list = buffer->selection_clipboards;
+  GSList               *tmp_list = buffer->priv->selection_clipboards;
 
-  priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+  priv = buffer->priv;
 
   gtk_text_buffer_get_copy_target_list (buffer);
 
@@ -3638,7 +3663,7 @@ static SelectionClipboard *
 find_selection_clipboard (GtkTextBuffer *buffer,
 			  GtkClipboard  *clipboard)
 {
-  GSList *tmp_list = buffer->selection_clipboards;
+  GSList *tmp_list = buffer->priv->selection_clipboards;
   while (tmp_list)
     {
       SelectionClipboard *selection_clipboard = tmp_list->data;
@@ -3681,7 +3706,8 @@ gtk_text_buffer_add_selection_clipboard (GtkTextBuffer *buffer,
       selection_clipboard->clipboard = clipboard;
       selection_clipboard->ref_count = 1;
 
-      buffer->selection_clipboards = g_slist_prepend (buffer->selection_clipboards, selection_clipboard);
+      buffer->priv->selection_clipboards = g_slist_prepend (buffer->priv->selection_clipboards,
+                                                            selection_clipboard);
     }
 }
 
@@ -3712,8 +3738,8 @@ gtk_text_buffer_remove_selection_clipboard (GtkTextBuffer *buffer,
       if (gtk_clipboard_get_owner (selection_clipboard->clipboard) == G_OBJECT (buffer))
 	gtk_clipboard_clear (selection_clipboard->clipboard);
 
-      buffer->selection_clipboards = g_slist_remove (buffer->selection_clipboards,
-                                                     selection_clipboard);
+      buffer->priv->selection_clipboards = g_slist_remove (buffer->priv->selection_clipboards,
+                                                           selection_clipboard);
       
       g_free (selection_clipboard);
     }
@@ -3722,9 +3748,11 @@ gtk_text_buffer_remove_selection_clipboard (GtkTextBuffer *buffer,
 static void
 remove_all_selection_clipboards (GtkTextBuffer *buffer)
 {
-  g_slist_foreach (buffer->selection_clipboards, (GFunc)g_free, NULL);
-  g_slist_free (buffer->selection_clipboards);
-  buffer->selection_clipboards = NULL;
+  GtkTextBufferPrivate *priv = buffer->priv;
+
+  g_slist_foreach (priv->selection_clipboards, (GFunc)g_free, NULL);
+  g_slist_free (priv->selection_clipboards);
+  priv->selection_clipboards = NULL;
 }
 
 /**
@@ -3933,7 +3961,7 @@ cut_or_copy (GtkTextBuffer *buffer,
   GtkTextIter start;
   GtkTextIter end;
 
-  priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+  priv = buffer->priv;
 
   gtk_text_buffer_get_copy_target_list (buffer);
 
@@ -4070,9 +4098,9 @@ gtk_text_buffer_begin_user_action (GtkTextBuffer *buffer)
 {
   g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
 
-  buffer->user_action_count += 1;
+  buffer->priv->user_action_count += 1;
   
-  if (buffer->user_action_count == 1)
+  if (buffer->priv->user_action_count == 1)
     {
       /* Outermost nested user action begin emits the signal */
       g_signal_emit (buffer, signals[BEGIN_USER_ACTION], 0);
@@ -4090,11 +4118,11 @@ void
 gtk_text_buffer_end_user_action (GtkTextBuffer *buffer)
 {
   g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
-  g_return_if_fail (buffer->user_action_count > 0);
+  g_return_if_fail (buffer->priv->user_action_count > 0);
   
-  buffer->user_action_count -= 1;
+  buffer->priv->user_action_count -= 1;
   
-  if (buffer->user_action_count == 0)
+  if (buffer->priv->user_action_count == 0)
     {
       /* Ended the outermost-nested user action end, so emit the signal */
       g_signal_emit (buffer, signals[END_USER_ACTION], 0);
@@ -4104,7 +4132,7 @@ gtk_text_buffer_end_user_action (GtkTextBuffer *buffer)
 static void
 gtk_text_buffer_free_target_lists (GtkTextBuffer *buffer)
 {
-  GtkTextBufferPrivate *priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+  GtkTextBufferPrivate *priv = buffer->priv;
 
   if (priv->copy_target_list)
     {
@@ -4178,7 +4206,7 @@ gtk_text_buffer_get_copy_target_list (GtkTextBuffer *buffer)
 
   g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
 
-  priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+  priv = buffer->priv;
 
   if (! priv->copy_target_list)
     priv->copy_target_list =
@@ -4210,7 +4238,7 @@ gtk_text_buffer_get_paste_target_list (GtkTextBuffer *buffer)
 
   g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
 
-  priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
+  priv = buffer->priv;
 
   if (! priv->paste_target_list)
     priv->paste_target_list =
@@ -4312,6 +4340,7 @@ _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer     *buffer,
                                      const GtkTextIter *anywhere_in_line,
                                      gint              *char_len)
 {
+  GtkTextBufferPrivate *priv;
   gint line;
   GtkTextLogAttrCache *cache;
   gint i;
@@ -4319,6 +4348,8 @@ _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer     *buffer,
   g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
   g_return_val_if_fail (anywhere_in_line != NULL, NULL);
 
+  priv = buffer->priv;
+
   /* special-case for empty last line in buffer */
   if (gtk_text_iter_is_end (anywhere_in_line) &&
       gtk_text_iter_get_line_offset (anywhere_in_line) == 0)
@@ -4332,19 +4363,19 @@ _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer     *buffer,
    * the start of a paragraph changes
    */
   
-  if (buffer->log_attr_cache == NULL)
+  if (priv->log_attr_cache == NULL)
     {
-      buffer->log_attr_cache = g_new0 (GtkTextLogAttrCache, 1);
-      buffer->log_attr_cache->chars_changed_stamp =
+      priv->log_attr_cache = g_new0 (GtkTextLogAttrCache, 1);
+      priv->log_attr_cache->chars_changed_stamp =
         _gtk_text_btree_get_chars_changed_stamp (get_btree (buffer));
     }
-  else if (buffer->log_attr_cache->chars_changed_stamp !=
+  else if (priv->log_attr_cache->chars_changed_stamp !=
            _gtk_text_btree_get_chars_changed_stamp (get_btree (buffer)))
     {
-      clear_log_attr_cache (buffer->log_attr_cache);
+      clear_log_attr_cache (priv->log_attr_cache);
     }
   
-  cache = buffer->log_attr_cache;
+  cache = priv->log_attr_cache;
   line = gtk_text_iter_get_line (anywhere_in_line);
 
   i = 0;
@@ -4385,8 +4416,8 @@ _gtk_text_buffer_notify_will_remove_tag (GtkTextBuffer *buffer,
    * code messing things up at this point; the tag MUST be removed
    * entirely.
    */
-  if (buffer->btree)
-    _gtk_text_btree_notify_will_remove_tag (buffer->btree, tag);
+  if (buffer->priv->btree)
+    _gtk_text_btree_notify_will_remove_tag (buffer->priv->btree, tag);
 }
 
 /*
diff --git a/gtk/gtktextbuffer.h b/gtk/gtktextbuffer.h
index 3a773e5..e9b6e97 100644
--- a/gtk/gtktextbuffer.h
+++ b/gtk/gtktextbuffer.h
@@ -60,8 +60,6 @@ typedef enum
 
 typedef struct _GtkTextBTree GtkTextBTree;
 
-typedef struct _GtkTextLogAttrCache GtkTextLogAttrCache;
-
 #define GTK_TYPE_TEXT_BUFFER            (gtk_text_buffer_get_type ())
 #define GTK_TEXT_BUFFER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_BUFFER, GtkTextBuffer))
 #define GTK_TEXT_BUFFER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_BUFFER, GtkTextBufferClass))
@@ -69,26 +67,14 @@ typedef struct _GtkTextLogAttrCache GtkTextLogAttrCache;
 #define GTK_IS_TEXT_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_BUFFER))
 #define GTK_TEXT_BUFFER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_BUFFER, GtkTextBufferClass))
 
+typedef struct _GtkTextBufferPrivate GtkTextBufferPrivate;
 typedef struct _GtkTextBufferClass GtkTextBufferClass;
 
 struct _GtkTextBuffer
 {
   GObject parent_instance;
 
-  GtkTextTagTable *GSEAL (tag_table);
-  GtkTextBTree *GSEAL (btree);
-
-  GSList *GSEAL (clipboard_contents_buffers);
-  GSList *GSEAL (selection_clipboards);
-
-  GtkTextLogAttrCache *GSEAL (log_attr_cache);
-
-  guint GSEAL (user_action_count);
-
-  /* Whether the buffer has been modified since last save */
-  guint GSEAL (modified) : 1;
-
-  guint GSEAL (has_selection) : 1;
+  GtkTextBufferPrivate *priv;
 };
 
 struct _GtkTextBufferClass
diff --git a/gtk/gtktextbufferserialize.c b/gtk/gtktextbufferserialize.c
index b6948e9..76040f2 100644
--- a/gtk/gtktextbufferserialize.c
+++ b/gtk/gtktextbufferserialize.c
@@ -997,8 +997,11 @@ tag_exists (GMarkupParseContext *context,
 	    ParseInfo           *info,
 	    GError             **error)
 {
+  GtkTextTagTable *tag_table;
   const gchar *real_name;
 
+  tag_table = gtk_text_buffer_get_tag_table (info->buffer);
+
   if (info->create_tags)
     {
       /* If we have an anonymous tag, just return it directly */
@@ -1010,11 +1013,11 @@ tag_exists (GMarkupParseContext *context,
       real_name = g_hash_table_lookup (info->substitutions, name);
 
       if (real_name)
-	return gtk_text_tag_table_lookup (info->buffer->tag_table, real_name);
+	return gtk_text_tag_table_lookup (tag_table, real_name);
 
       /* Next, try the list of defined tags */
       if (g_hash_table_lookup (info->defined_tags, name) != NULL)
-	return gtk_text_tag_table_lookup (info->buffer->tag_table, name);
+	return gtk_text_tag_table_lookup (tag_table, name);
 
       set_error (error, context,
 		 G_MARKUP_ERROR, G_MARKUP_ERROR_PARSE,
@@ -1034,7 +1037,7 @@ tag_exists (GMarkupParseContext *context,
 	  return NULL;
 	}
 
-      tag = gtk_text_tag_table_lookup (info->buffer->tag_table, name);
+      tag = gtk_text_tag_table_lookup (tag_table, name);
 
       if (tag)
 	return tag;
@@ -1225,6 +1228,7 @@ static gchar *
 get_tag_name (ParseInfo   *info,
 	      const gchar *tag_name)
 {
+  GtkTextTagTable *tag_table;
   gchar *name;
   gint i;
 
@@ -1234,8 +1238,9 @@ get_tag_name (ParseInfo   *info,
     return name;
 
   i = 0;
+  tag_table = gtk_text_buffer_get_tag_table (info->buffer);
 
-  while (gtk_text_tag_table_lookup (info->buffer->tag_table, name) != NULL)
+  while (gtk_text_tag_table_lookup (tag_table, name) != NULL)
     {
       g_free (name);
       name = g_strdup_printf ("%s-%d", tag_name, ++i);
@@ -1454,7 +1459,8 @@ end_element_handler (GMarkupParseContext  *context,
 	  TextTagPrio *prio = list->data;
 
 	  if (info->create_tags)
-	    gtk_text_tag_table_add (info->buffer->tag_table, prio->tag);
+	    gtk_text_tag_table_add (gtk_text_buffer_get_tag_table (info->buffer),
+	                            prio->tag);
 
 	  g_object_unref (prio->tag);
 	  prio->tag = NULL;
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