]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtktextlayout.c
a11y: Emit text-changed signals directly
[~andy/gtk] / gtk / gtktextlayout.c
index f19ab618d26509f32f4af70f6fdcf808f11b9ae1..73be6b417c94260929d831b5883ece633c28fae4 100644 (file)
@@ -23,8 +23,7 @@
  * 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, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free
  *
  * Original Tk license:
  *
@@ -170,19 +169,64 @@ enum {
 
 #define PIXEL_BOUND(d) (((d) + PANGO_SCALE - 1) / PANGO_SCALE)
 
-static void gtk_text_layout_finalize (GObject *object);
-
 static guint signals[LAST_SIGNAL] = { 0 };
 
 PangoAttrType gtk_text_attr_appearance_type = 0;
 
 G_DEFINE_TYPE (GtkTextLayout, gtk_text_layout, G_TYPE_OBJECT)
 
+static void
+gtk_text_layout_dispose (GObject *object)
+{
+  GtkTextLayout *layout;
+
+  layout = GTK_TEXT_LAYOUT (object);
+
+  gtk_text_layout_set_buffer (layout, NULL);
+
+  if (layout->default_style != NULL)
+    {
+      gtk_text_attributes_unref (layout->default_style);
+      layout->default_style = NULL;
+    }
+
+  g_clear_object (&layout->ltr_context);
+  g_clear_object (&layout->rtl_context);
+
+  if (layout->one_display_cache)
+    {
+      GtkTextLineDisplay *tmp_display = layout->one_display_cache;
+      layout->one_display_cache = NULL;
+      gtk_text_layout_free_line_display (layout, tmp_display);
+    }
+
+  if (layout->preedit_attrs != NULL)
+    {
+      pango_attr_list_unref (layout->preedit_attrs);
+      layout->preedit_attrs = NULL;
+    }
+
+  G_OBJECT_CLASS (gtk_text_layout_parent_class)->dispose (object);
+}
+
+static void
+gtk_text_layout_finalize (GObject *object)
+{
+  GtkTextLayout *layout;
+
+  layout = GTK_TEXT_LAYOUT (object);
+
+  g_free (layout->preedit_string);
+
+  G_OBJECT_CLASS (gtk_text_layout_parent_class)->finalize (object);
+}
+
 static void
 gtk_text_layout_class_init (GtkTextLayoutClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
+  object_class->dispose = gtk_text_layout_dispose;
   object_class->finalize = gtk_text_layout_finalize;
 
   klass->wrap = gtk_text_layout_real_wrap;
@@ -212,6 +256,8 @@ gtk_text_layout_class_init (GtkTextLayoutClass *klass)
                   G_TYPE_INT,
                   G_TYPE_INT,
                   G_TYPE_INT);
+  g_signal_set_va_marshaller (signals[CHANGED], G_TYPE_FROM_CLASS (klass),
+                              _gtk_marshal_VOID__INT_INT_INTv);
 
   signals[ALLOCATE_CHILD] =
     g_signal_new (I_("allocate-child"),
@@ -251,53 +297,6 @@ free_style_cache (GtkTextLayout *text_layout)
     }
 }
 
-static void
-gtk_text_layout_finalize (GObject *object)
-{
-  GtkTextLayout *layout;
-
-  layout = GTK_TEXT_LAYOUT (object);
-
-  gtk_text_layout_set_buffer (layout, NULL);
-
-  if (layout->default_style)
-    gtk_text_attributes_unref (layout->default_style);
-  layout->default_style = NULL;
-
-  if (layout->ltr_context)
-    {
-      g_object_unref (layout->ltr_context);
-      layout->ltr_context = NULL;
-    }
-  if (layout->rtl_context)
-    {
-      g_object_unref (layout->rtl_context);
-      layout->rtl_context = NULL;
-    }
-  
-  if (layout->one_display_cache) 
-    {
-      GtkTextLineDisplay *tmp_display = layout->one_display_cache;
-      layout->one_display_cache = NULL;
-      gtk_text_layout_free_line_display (layout, tmp_display);
-    }
-
-  if (layout->preedit_string)
-    {
-      g_free (layout->preedit_string);
-      layout->preedit_string = NULL;
-    }
-
-  if (layout->preedit_attrs)
-    {
-      pango_attr_list_unref (layout->preedit_attrs);
-      layout->preedit_attrs = NULL;
-    }
-
-
-  G_OBJECT_CLASS (gtk_text_layout_parent_class)->finalize (object);
-}
-
 /**
  * gtk_text_layout_set_buffer:
  * @buffer: (allow-none):
@@ -827,8 +826,8 @@ gtk_text_layout_invalidate_cache (GtkTextLayout *layout,
 
       if (cursors_only)
        {
-         g_slist_foreach (display->cursors, (GFunc)g_free, NULL);
-         g_slist_free (display->cursors);
+          if (display->cursors)
+            g_array_free (display->cursors, TRUE);
          display->cursors = NULL;
          display->cursors_invalid = TRUE;
          display->has_block_cursor = FALSE;
@@ -937,8 +936,8 @@ gtk_text_layout_real_invalidate_cursors (GtkTextLayout     *layout,
       GtkTextIter line_start, line_end;
       GtkTextLine *line = layout->one_display_cache->line;
 
-      _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                        &line_start, line, 0);
+      gtk_text_layout_get_iter_at_line (layout, &line_start, line, 0);
+
       line_end = line_start;
       if (!gtk_text_iter_ends_line (&line_end))
        gtk_text_iter_forward_to_line_end (&line_end);
@@ -1257,9 +1256,7 @@ totally_invisible_line (GtkTextLayout *layout,
    * invisible/noninvisible toggle state; this function can use the whole btree 
    * to get it right.
    */
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                   iter, line, 0);
-  
+  gtk_text_layout_get_iter_at_line (layout, iter, line, 0);
   if (!_gtk_text_btree_char_is_invisible (iter))
     return FALSE;
 
@@ -1408,7 +1405,12 @@ set_para_values (GtkTextLayout      *layout,
   if (style->pg_bg_color)
     display->pg_bg_color = gdk_color_copy (style->pg_bg_color);
   else
-    display->pg_bg_color = NULL;  
+    display->pg_bg_color = NULL;
+
+  if (style->pg_bg_rgba)
+    display->pg_bg_rgba = gdk_rgba_copy (style->pg_bg_rgba);
+  else
+    display->pg_bg_rgba = NULL;
 }
 
 static PangoAttribute *
@@ -1728,11 +1730,6 @@ add_cursor (GtkTextLayout      *layout,
             GtkTextLineSegment *seg,
             gint                start)
 {
-  PangoRectangle strong_pos, weak_pos;
-  GtkTextCursorDisplay *cursor = NULL; /* Quiet GCC */
-  gboolean add_weak = FALSE;
-  gboolean add_strong = FALSE;
-  
   /* Hide insertion cursor when we have a selection or the layout
    * user has hidden the cursor.
    */
@@ -1762,46 +1759,10 @@ add_cursor (GtkTextLayout      *layout,
        }
     }
 
-  pango_layout_get_cursor_pos (display->layout, start, &strong_pos, &weak_pos);
+  if (!display->cursors)
+    display->cursors = g_array_new (FALSE, FALSE, sizeof(int));
 
-  if (layout->cursor_direction == GTK_TEXT_DIR_NONE)
-    {
-      add_strong = TRUE;
-      add_weak = TRUE;
-    }
-  else if (display->direction == layout->cursor_direction)
-    add_strong = TRUE;
-  else
-    add_weak = TRUE;
-
-  if (add_strong)
-    {
-      cursor = g_new (GtkTextCursorDisplay, 1);
-
-      cursor->x = PANGO_PIXELS (strong_pos.x);
-      cursor->y = PANGO_PIXELS (strong_pos.y);
-      cursor->height = PANGO_PIXELS (strong_pos.height);
-      cursor->is_strong = TRUE;
-      cursor->is_weak = (layout->cursor_direction == GTK_TEXT_DIR_NONE) ? FALSE : TRUE;
-      display->cursors = g_slist_prepend (display->cursors, cursor);
-    }
-  
-  if (add_weak)
-    {
-      if (weak_pos.x == strong_pos.x && add_strong)
-       cursor->is_weak = TRUE;
-      else
-       {
-         cursor = g_new (GtkTextCursorDisplay, 1);
-         
-         cursor->x = PANGO_PIXELS (weak_pos.x);
-         cursor->y = PANGO_PIXELS (weak_pos.y);
-         cursor->height = PANGO_PIXELS (weak_pos.height);
-         cursor->is_strong = (layout->cursor_direction == GTK_TEXT_DIR_NONE) ? FALSE : TRUE;
-         cursor->is_weak = TRUE;
-         display->cursors = g_slist_prepend (display->cursors, cursor);
-       }
-    }
+  display->cursors = g_array_append_val (display->cursors, start);
 }
 
 static gboolean
@@ -1885,12 +1846,13 @@ allocate_child_widgets (GtkTextLayout      *text_layout,
 }
 
 static void
-convert_color (GdkColor       *result,
+convert_color (GdkRGBA        *result,
               PangoAttrColor *attr)
 {
-  result->red = attr->color.red;
-  result->blue = attr->color.blue;
-  result->green = attr->color.green;
+  result->red = attr->color.red / 65535.;
+  result->blue = attr->color.blue / 65535.;
+  result->green = attr->color.green / 65535.;
+  result->alpha = 1;
 }
 
 /* This function is used to convert the preedit string attributes, which are
@@ -1930,14 +1892,21 @@ add_preedit_attrs (GtkTextLayout     *layout,
       while (tmp_list)
        {
          PangoAttribute *attr = tmp_list->data;
+         GdkRGBA rgba;
          
          switch (attr->klass->type)
            {
            case PANGO_ATTR_FOREGROUND:
-             convert_color (&appearance.fg_color, (PangoAttrColor *)attr);
+             convert_color (&rgba, (PangoAttrColor *)attr);
+             if (appearance.rgba[1])
+               gdk_rgba_free (appearance.rgba[1]);
+             appearance.rgba[1] = gdk_rgba_copy (&rgba);
              break;
            case PANGO_ATTR_BACKGROUND:
-             convert_color (&appearance.bg_color, (PangoAttrColor *)attr);
+             convert_color (&rgba, (PangoAttrColor *)attr);
+             if (appearance.rgba[0])
+               gdk_rgba_free (appearance.rgba[0]);
+             appearance.rgba[0] = gdk_rgba_copy (&rgba);
              appearance.draw_bg = TRUE;
              break;
            case PANGO_ATTR_UNDERLINE:
@@ -2004,9 +1973,6 @@ update_text_display_cursors (GtkTextLayout      *layout,
 
   display->cursors_invalid = FALSE;
 
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                    &iter, line, 0);
-
   /* Special-case optimization for completely
    * invisible lines; makes it faster to deal
    * with sequences of invisible lines.
@@ -2025,11 +1991,10 @@ update_text_display_cursors (GtkTextLayout      *layout,
           seg->type == &gtk_text_pixbuf_type ||
           seg->type == &gtk_text_child_type)
         {
-          _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                            &iter, line,
+          gtk_text_layout_get_iter_at_line (layout, &iter, line,
                                             buffer_byte_offset);
 
-         if (!_gtk_text_btree_char_is_invisible (&iter))
+          if (!_gtk_text_btree_char_is_invisible (&iter))
             layout_byte_offset += seg->byte_count;
 
          buffer_byte_offset += seg->byte_count;
@@ -2187,15 +2152,12 @@ gtk_text_layout_get_line_display (GtkTextLayout *layout,
 
   DV (g_print ("creating one line display cache (%s)\n", G_STRLOC));
 
-  display = g_new0 (GtkTextLineDisplay, 1);
+  display = g_slice_new0 (GtkTextLineDisplay);
 
   display->size_only = size_only;
   display->line = line;
   display->insert_index = -1;
 
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                    &iter, line, 0);
-
   /* Special-case optimization for completely
    * invisible lines; makes it faster to deal
    * with sequences of invisible lines.
@@ -2525,15 +2487,15 @@ gtk_text_layout_free_line_display (GtkTextLayout      *layout,
         g_object_unref (display->layout);
 
       if (display->cursors)
-        {
-          g_slist_foreach (display->cursors, (GFunc)g_free, NULL);
-          g_slist_free (display->cursors);
-        }
+        g_array_free (display->cursors, TRUE);
 
       if (display->pg_bg_color)
         gdk_color_free (display->pg_bg_color);
 
-      g_free (display);
+      if (display->pg_bg_rgba)
+        gdk_rgba_free (display->pg_bg_rgba);
+
+      g_slice_free (GtkTextLineDisplay, display);
     }
 }
 
@@ -2581,8 +2543,7 @@ line_display_index_to_iter (GtkTextLayout      *layout,
        }
     }
 
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                    iter, display->line, 0);
+  gtk_text_layout_get_iter_at_line (layout, iter, display->line, 0);
 
   gtk_text_iter_set_visible_line_index (iter, index);
   
@@ -2591,9 +2552,7 @@ line_display_index_to_iter (GtkTextLayout      *layout,
       /* Clamp to end of line - really this clamping should have been done
        * before here, maybe in Pango, this is a broken band-aid I think
        */
-      _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                        iter, display->line, 0);
-
+      gtk_text_layout_get_iter_at_line (layout, iter, display->line, 0);
       if (!gtk_text_iter_ends_line (iter))
         gtk_text_iter_forward_to_line_end (iter);
     }
@@ -2648,8 +2607,7 @@ gtk_text_layout_get_line_at_y (GtkTextLayout *layout,
   g_return_if_fail (target_iter != NULL);
 
   get_line_at_y (layout, y, &line, line_top);
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                   target_iter, line, 0);
+  gtk_text_layout_get_iter_at_line (layout, target_iter, line, 0);
 }
 
 void
@@ -3022,8 +2980,7 @@ find_display_line_below (GtkTextLayout *layout,
       line = next;
     }
 
-  _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                   iter, found_line, found_byte);
+  gtk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte);
 }
 
 /* Find the iter for the logical beginning of the last display line whose
@@ -3091,10 +3048,9 @@ find_display_line_above (GtkTextLayout *layout,
     }
 
  done:
-  
+
   if (found_line)
-    _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                     iter, found_line, found_byte);
+    gtk_text_layout_get_iter_at_line (layout, iter, found_line, found_byte);
   else
     gtk_text_buffer_get_iter_at_offset (layout->buffer, iter, 0);
 }
@@ -3461,7 +3417,6 @@ gtk_text_layout_get_iter_at_line (GtkTextLayout  *layout,
                                     iter, line, byte_offset);
 }
 
-
 /**
  * gtk_text_layout_move_iter_to_x:
  * @layout: a #GtkTextLayout
@@ -3608,12 +3563,8 @@ gtk_text_layout_move_iter_visually (GtkTextLayout *layout,
           do
             {
               line = _gtk_text_line_previous (line);
-
               if (!line)
                 goto done;
-              
-              _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                                &lineiter, line, 0);
             }
           while (totally_invisible_line (layout, line, &lineiter));
           
@@ -3629,12 +3580,9 @@ gtk_text_layout_move_iter_visually (GtkTextLayout *layout,
               line = _gtk_text_line_next_excluding_last (line);
               if (!line)
                 goto done;
-
-              _gtk_text_btree_get_iter_at_line (_gtk_text_buffer_get_btree (layout->buffer),
-                                                &lineiter, line, 0);
             }
           while (totally_invisible_line (layout, line, &lineiter));
-  
+
          gtk_text_layout_free_line_display (layout, display);
          display = gtk_text_layout_get_line_display (layout, line, FALSE);
           new_index = 0;