forked from AuroraMiddleware/gtk
A11y: Fix text functions for table cells
Keep the PangoLayout around, and refresh in update_cache. https://bugzilla.gnome.org/show_bug.cgi?id=707729
This commit is contained in:
Mike Gorse
Matthias Clasen
parent
197785744b
commit
e529dfe949
@ -28,6 +28,7 @@ struct _GtkTextCellAccessiblePrivate
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gchar *cell_text;
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gint caret_pos;
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gint cell_length;
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PangoLayout *layout;
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};
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static const gchar* gtk_text_cell_accessible_get_name (AtkObject *atk_obj);
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@ -112,6 +113,9 @@ gtk_text_cell_accessible_finalize (GObject *object)
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g_free (text_cell->priv->cell_text);
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if (text_cell->priv->layout)
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g_object_unref (text_cell->priv->layout);
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G_OBJECT_CLASS (gtk_text_cell_accessible_parent_class)->finalize (object);
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}
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@ -136,6 +140,10 @@ gtk_text_cell_accessible_update_cache (GtkCellAccessible *cell)
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gchar *text;
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GtkCellRenderer *renderer;
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if (text_cell->priv->layout)
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g_object_unref (text_cell->priv->layout);
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text_cell->priv->layout = create_pango_layout (text_cell);
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g_object_get (cell, "renderer", &renderer, NULL);
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g_object_get (renderer, "text", &text, NULL);
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g_object_unref (renderer);
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@ -226,12 +234,10 @@ gtk_text_cell_accessible_get_text_before_offset (AtkText *atk_text,
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gint *start_offset,
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gint *end_offset)
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{
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (atk_text);
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gchar *text;
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (atk_text));
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text = _gtk_pango_get_text_before (layout, boundary_type, offset, start_offset, end_offset);
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g_object_unref (layout);
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text = _gtk_pango_get_text_before (text_cell->priv->layout, boundary_type, offset, start_offset, end_offset);
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return text;
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}
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@ -243,12 +249,10 @@ gtk_text_cell_accessible_get_text_at_offset (AtkText *atk_text,
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gint *start_offset,
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gint *end_offset)
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{
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (atk_text);
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gchar *text;
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (atk_text));
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text = _gtk_pango_get_text_at (layout, boundary_type, offset, start_offset, end_offset);
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g_object_unref (layout);
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text = _gtk_pango_get_text_at (text_cell->priv->layout, boundary_type, offset, start_offset, end_offset);
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return text;
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}
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@ -260,12 +264,10 @@ gtk_text_cell_accessible_get_text_after_offset (AtkText *atk_text,
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gint *start_offset,
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gint *end_offset)
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{
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (atk_text);
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gchar *text;
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (atk_text));
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text = _gtk_pango_get_text_after (layout, boundary_type, offset, start_offset, end_offset);
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g_object_unref (layout);
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text = _gtk_pango_get_text_after (text_cell->priv->layout, boundary_type, offset, start_offset, end_offset);
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return text;
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}
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@ -318,11 +320,9 @@ gtk_text_cell_accessible_get_run_attributes (AtkText *text,
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gint *end_offset)
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{
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AtkAttributeSet *attrib_set = NULL;
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (text);
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (text));
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attrib_set = _gtk_pango_get_run_attributes (NULL, layout, offset, start_offset, end_offset);
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g_object_unref (G_OBJECT (layout));
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attrib_set = _gtk_pango_get_run_attributes (NULL, text_cell->priv->layout, offset, start_offset, end_offset);
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return attrib_set;
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}
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@ -345,23 +345,20 @@ static AtkAttributeSet *
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gtk_text_cell_accessible_get_default_attributes (AtkText *text)
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{
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AtkAttributeSet *attrib_set = NULL;
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (text);
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GtkWidget *widget;
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (text));
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widget = get_widget (GTK_TEXT_CELL_ACCESSIBLE (text));
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attrib_set = add_attribute (attrib_set, ATK_TEXT_ATTR_DIRECTION,
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atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION,
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gtk_widget_get_direction (widget)));
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attrib_set = _gtk_pango_get_default_attributes (NULL, layout);
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attrib_set = _gtk_pango_get_default_attributes (NULL, text_cell->priv->layout);
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attrib_set = _gtk_style_context_get_attributes (attrib_set,
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gtk_widget_get_style_context (widget),
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gtk_widget_get_state_flags (widget));
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g_object_unref (G_OBJECT (layout));
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return attrib_set;
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}
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@ -529,7 +526,7 @@ gtk_text_cell_accessible_get_character_extents (AtkText *text,
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GtkWidget *widget;
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AtkObject *parent;
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PangoRectangle char_rect;
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (text);
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gchar *renderer_text;
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gfloat xalign, yalign;
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gint x_offset, y_offset, index;
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@ -574,10 +571,8 @@ gtk_text_cell_accessible_get_character_extents (AtkText *text,
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x_offset = MAX (0, xalign * (rendered_rect.width - min_size.width));
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y_offset = MAX (0, yalign * (rendered_rect.height - min_size.height));
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (text));
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index = g_utf8_offset_to_pointer (renderer_text, offset) - renderer_text;
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pango_layout_index_to_pos (layout, index, &char_rect);
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pango_layout_index_to_pos (text_cell->priv->layout, index, &char_rect);
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gtk_cell_renderer_get_padding (GTK_CELL_RENDERER (gtk_renderer), &xpad, &ypad);
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@ -602,7 +597,6 @@ gtk_text_cell_accessible_get_character_extents (AtkText *text,
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}
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g_free (renderer_text);
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g_object_unref (layout);
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g_object_unref (gtk_renderer);
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}
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@ -618,7 +612,7 @@ gtk_text_cell_accessible_get_offset_at_point (AtkText *text,
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GtkRequisition min_size;
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GtkWidget *widget;
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GdkRectangle rendered_rect;
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PangoLayout *layout;
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GtkTextCellAccessible *text_cell = GTK_TEXT_CELL_ACCESSIBLE (text);
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gchar *renderer_text;
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gfloat xalign, yalign;
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gint x_offset, y_offset, index;
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@ -661,8 +655,6 @@ gtk_text_cell_accessible_get_offset_at_point (AtkText *text,
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x_offset = MAX (0, xalign * (rendered_rect.width - min_size.width));
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y_offset = MAX (0, yalign * (rendered_rect.height - min_size.height));
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layout = create_pango_layout (GTK_TEXT_CELL_ACCESSIBLE (text));
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gtk_cell_renderer_get_padding (GTK_CELL_RENDERER (gtk_renderer), &xpad, &ypad);
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get_origins (widget, &x_window, &y_window, &x_toplevel, &y_toplevel);
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@ -677,7 +669,7 @@ gtk_text_cell_accessible_get_offset_at_point (AtkText *text,
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else if (coords != ATK_XY_SCREEN)
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index = -1;
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ret = pango_layout_xy_to_index (layout,
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ret = pango_layout_xy_to_index (text_cell->priv->layout,
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x_temp * PANGO_SCALE,
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y_temp * PANGO_SCALE,
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&index, NULL);
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@ -689,7 +681,6 @@ gtk_text_cell_accessible_get_offset_at_point (AtkText *text,
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index = -1;
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}
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g_object_unref (layout);
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g_object_unref (gtk_renderer);
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if (index == -1)
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