GTK+ cleanup: gtk_type_class

(bzr r10407)

29 files changed, 35 insertions, 53 deletions

diff --git a/src/display/canvas-arena.cpp b/src/display/canvas-arena.cpp
index 5f3d961f7..6930e4d7c 100644
--- a/src/display/canvas-arena.cpp
+++ b/src/display/canvas-arena.cpp
@@ -77,7 +77,7 @@ sp_canvas_arena_class_init (SPCanvasArenaClass *klass)
     object_class = (GtkObjectClass *) klass;
     item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     signals[ARENA_EVENT] = g_signal_new ("arena_event",
                                            G_TYPE_FROM_CLASS(object_class),
diff --git a/src/display/canvas-bpath.cpp b/src/display/canvas-bpath.cpp
index 815892878..306b523ca 100644
--- a/src/display/canvas-bpath.cpp
+++ b/src/display/canvas-bpath.cpp
@@ -67,7 +67,7 @@ sp_canvas_bpath_class_init (SPCanvasBPathClass *klass)
     object_class = GTK_OBJECT_CLASS (klass);
     item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_canvas_bpath_destroy;
 
diff --git a/src/display/canvas-grid.cpp b/src/display/canvas-grid.cpp
index 2a9e50e3d..e1673c8ef 100644
--- a/src/display/canvas-grid.cpp
+++ b/src/display/canvas-grid.cpp
@@ -89,7 +89,7 @@ grid_canvasitem_class_init (GridCanvasItemClass *klass)
     object_class = (GtkObjectClass *) klass;
     item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (sp_canvas_item_get_type ());
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = grid_canvasitem_destroy;
 
diff --git a/src/display/canvas-text.cpp b/src/display/canvas-text.cpp
index 690015ecd..683e2f93c 100644
--- a/src/display/canvas-text.cpp
+++ b/src/display/canvas-text.cpp
@@ -63,7 +63,7 @@ sp_canvastext_class_init (SPCanvasTextClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
 
-    parent_class_ct = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class_ct = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_canvastext_destroy;
 
diff --git a/src/display/gnome-canvas-acetate.cpp b/src/display/gnome-canvas-acetate.cpp
index 67cc66950..bdda3a120 100644
--- a/src/display/gnome-canvas-acetate.cpp
+++ b/src/display/gnome-canvas-acetate.cpp
@@ -54,7 +54,7 @@ sp_canvas_acetate_class_init (SPCanvasAcetateClass *klass)
 	object_class = (GtkObjectClass *) klass;
 	item_class = (SPCanvasItemClass *) klass;
 
-	parent_class = (SPCanvasItemClass*)gtk_type_class (sp_canvas_item_get_type ());
+	parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
 	object_class->destroy = sp_canvas_acetate_destroy;
 
diff --git a/src/display/sodipodi-ctrl.cpp b/src/display/sodipodi-ctrl.cpp
index fe2a78a8f..0ff7ca9f5 100644
--- a/src/display/sodipodi-ctrl.cpp
+++ b/src/display/sodipodi-ctrl.cpp
@@ -71,7 +71,7 @@ sp_ctrl_class_init (SPCtrlClass *klass)
     object_class = (GtkObjectClass *) klass;
     item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass *)gtk_type_class (sp_canvas_item_get_type ());
+    parent_class = (SPCanvasItemClass *)g_type_class_peek_parent (klass);
 
     gtk_object_add_arg_type ("SPCtrl::shape", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_SHAPE);
     gtk_object_add_arg_type ("SPCtrl::mode", GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_MODE);
diff --git a/src/display/sodipodi-ctrlrect.cpp b/src/display/sodipodi-ctrlrect.cpp
index 592d45bc0..b516456e9 100644
--- a/src/display/sodipodi-ctrlrect.cpp
+++ b/src/display/sodipodi-ctrlrect.cpp
@@ -64,7 +64,7 @@ static void sp_ctrlrect_class_init(SPCtrlRectClass *c)
     GtkObjectClass *object_class = (GtkObjectClass *) c;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) c;
 
-    parent_class = (SPCanvasItemClass*) gtk_type_class(sp_canvas_item_get_type());
+    parent_class = (SPCanvasItemClass*) g_type_class_peek_parent(c);
 
     object_class->destroy = sp_ctrlrect_destroy;
 
diff --git a/src/display/sp-canvas.cpp b/src/display/sp-canvas.cpp
index ecc3051cc..e1f165003 100644
--- a/src/display/sp-canvas.cpp
+++ b/src/display/sp-canvas.cpp
@@ -727,7 +727,7 @@ sp_canvas_group_class_init (SPCanvasGroupClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
 
-    group_parent_class = (SPCanvasItemClass*)gtk_type_class (sp_canvas_item_get_type ());
+    group_parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_canvas_group_destroy;
 
@@ -989,7 +989,7 @@ sp_canvas_class_init (SPCanvasClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
 
-    canvas_parent_class = (GtkWidgetClass *)gtk_type_class (GTK_TYPE_WIDGET);
+    canvas_parent_class = (GtkWidgetClass *)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_canvas_destroy;
 
diff --git a/src/display/sp-ctrlline.cpp b/src/display/sp-ctrlline.cpp
index 6c763abdf..c185234d4 100644
--- a/src/display/sp-ctrlline.cpp
+++ b/src/display/sp-ctrlline.cpp
@@ -65,7 +65,7 @@ sp_ctrlline_class_init (SPCtrlLineClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_ctrlline_destroy;
 
diff --git a/src/display/sp-ctrlpoint.cpp b/src/display/sp-ctrlpoint.cpp
index c33cdeeb9..1cf7dded0 100644
--- a/src/display/sp-ctrlpoint.cpp
+++ b/src/display/sp-ctrlpoint.cpp
@@ -56,7 +56,7 @@ sp_ctrlpoint_class_init (SPCtrlPointClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_ctrlpoint_destroy;
 
diff --git a/src/display/sp-ctrlquadr.cpp b/src/display/sp-ctrlquadr.cpp
index 0701d0b10..b39886178 100644
--- a/src/display/sp-ctrlquadr.cpp
+++ b/src/display/sp-ctrlquadr.cpp
@@ -64,7 +64,7 @@ sp_ctrlquadr_class_init (SPCtrlQuadrClass *klass)
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     SPCanvasItemClass *item_class = (SPCanvasItemClass *) klass;
 
-    parent_class = (SPCanvasItemClass*)gtk_type_class (SP_TYPE_CANVAS_ITEM);
+    parent_class = (SPCanvasItemClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_ctrlquadr_destroy;
 
diff --git a/src/helper/unit-menu.cpp b/src/helper/unit-menu.cpp
index 4b72a7566..a87ac4abd 100644
--- a/src/helper/unit-menu.cpp
+++ b/src/helper/unit-menu.cpp
@@ -80,7 +80,7 @@ static void
 sp_unit_selector_class_init(SPUnitSelectorClass *klass)
 {
     GObjectClass *object_class = G_OBJECT_CLASS(klass);
-    unit_selector_parent_class = (GtkHBoxClass*)gtk_type_class(GTK_TYPE_HBOX);
+    unit_selector_parent_class = (GtkHBoxClass*)g_type_class_peek_parent(klass);
 
     signals[SET_UNIT] = g_signal_new("set_unit",
                                      G_TYPE_FROM_CLASS(klass),
diff --git a/src/svg-view-widget.cpp b/src/svg-view-widget.cpp
index 333875550..cda1ed546 100644
--- a/src/svg-view-widget.cpp
+++ b/src/svg-view-widget.cpp
@@ -63,15 +63,11 @@ GType sp_svg_view_widget_get_type(void)
 static void
 sp_svg_view_widget_class_init (SPSVGSPViewWidgetClass *klass)
 {
-	GtkObjectClass *object_class;
-	GtkWidgetClass *widget_class;
-	SPViewWidgetClass *vw_class;
+	GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
+	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+	SPViewWidgetClass *vw_class = SP_VIEW_WIDGET_CLASS (klass);
 
-	object_class = GTK_OBJECT_CLASS (klass);
-	widget_class = GTK_WIDGET_CLASS (klass);
-	vw_class = SP_VIEW_WIDGET_CLASS (klass);
-
-	widget_parent_class = (SPViewWidgetClass*)gtk_type_class (SP_TYPE_VIEW_WIDGET);
+	widget_parent_class = (SPViewWidgetClass *)g_type_class_peek_parent (klass);
 
 	object_class->destroy = sp_svg_view_widget_destroy;
 
diff --git a/src/ui/view/view-widget.cpp b/src/ui/view/view-widget.cpp
index f87bc8edd..d43877569 100644
--- a/src/ui/view/view-widget.cpp
+++ b/src/ui/view/view-widget.cpp
@@ -54,7 +54,7 @@ static void sp_view_widget_class_init(SPViewWidgetClass *vwc)
 {
     GtkObjectClass *object_class = GTK_OBJECT_CLASS(vwc);
 
-    widget_parent_class = (GtkEventBoxClass*) gtk_type_class(GTK_TYPE_EVENT_BOX);
+    widget_parent_class = (GtkEventBoxClass*) g_type_class_peek_parent(vwc);
     
     object_class->destroy = sp_view_widget_destroy;
 }
diff --git a/src/widgets/desktop-widget.cpp b/src/widgets/desktop-widget.cpp
index 028138a10..52008625a 100644
--- a/src/widgets/desktop-widget.cpp
+++ b/src/widgets/desktop-widget.cpp
@@ -281,7 +281,7 @@ GType SPDesktopWidget::getType(void)
 static void
 sp_desktop_widget_class_init (SPDesktopWidgetClass *klass)
 {
-    dtw_parent_class = (SPViewWidgetClass*)gtk_type_class (SP_TYPE_VIEW_WIDGET);
+    dtw_parent_class = (SPViewWidgetClass*)g_type_class_peek_parent (klass);
 
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
     GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
diff --git a/src/widgets/font-selector.cpp b/src/widgets/font-selector.cpp
index 3f015790a..a9340a291 100644
--- a/src/widgets/font-selector.cpp
+++ b/src/widgets/font-selector.cpp
@@ -121,7 +121,7 @@ static void sp_font_selector_class_init(SPFontSelectorClass *c)
 {
     GtkObjectClass *object_class = (GtkObjectClass *) c;
 
-    fs_parent_class = (GtkHBoxClass* )gtk_type_class(GTK_TYPE_HBOX);
+    fs_parent_class = (GtkHBoxClass* )g_type_class_peek_parent (c);
 
     fs_signals[FONT_SET] = gtk_signal_new ("font_set",
                                            GTK_RUN_FIRST,
diff --git a/src/widgets/gradient-image.cpp b/src/widgets/gradient-image.cpp
index 37f74997d..1aeb43c91 100644
--- a/src/widgets/gradient-image.cpp
+++ b/src/widgets/gradient-image.cpp
@@ -65,7 +65,7 @@ sp_gradient_image_class_init (SPGradientImageClass *klass)
 	object_class = (GtkObjectClass *) klass;
 	widget_class = (GtkWidgetClass *) klass;
 
-	parent_class = (GtkWidgetClass*)gtk_type_class (GTK_TYPE_WIDGET);
+	parent_class = (GtkWidgetClass*)g_type_class_peek_parent (klass);
 
 	object_class->destroy = sp_gradient_image_destroy;
 
diff --git a/src/widgets/gradient-selector.cpp b/src/widgets/gradient-selector.cpp
index 0b7764674..a6e9be581 100644
--- a/src/widgets/gradient-selector.cpp
+++ b/src/widgets/gradient-selector.cpp
@@ -83,7 +83,7 @@ sp_gradient_selector_class_init (SPGradientSelectorClass *klass)
 
     object_class = (GtkObjectClass *) klass;
 
-    parent_class = (GtkVBoxClass*)gtk_type_class (GTK_TYPE_VBOX);
+    parent_class = (GtkVBoxClass*)g_type_class_peek_parent (klass);
 
     signals[GRABBED] =  g_signal_new ("grabbed",
                                         G_TYPE_FROM_CLASS(object_class),
diff --git a/src/widgets/gradient-vector.cpp b/src/widgets/gradient-vector.cpp
index bf1c38119..8c39b52dd 100644
--- a/src/widgets/gradient-vector.cpp
+++ b/src/widgets/gradient-vector.cpp
@@ -102,7 +102,7 @@ static void sp_gradient_vector_selector_class_init(SPGradientVectorSelectorClass
 
     object_class = GTK_OBJECT_CLASS(klass);
 
-    parent_class = static_cast<GtkVBoxClass*>(gtk_type_class(GTK_TYPE_VBOX));
+    parent_class = static_cast<GtkVBoxClass*>(g_type_class_peek_parent(klass));
 
     signals[VECTOR_SET] = g_signal_new( "vector_set",
 		                        G_TYPE_FROM_CLASS(object_class),
diff --git a/src/widgets/paint-selector.cpp b/src/widgets/paint-selector.cpp
index 4baabdfd9..9f2a30e32 100644
--- a/src/widgets/paint-selector.cpp
+++ b/src/widgets/paint-selector.cpp
@@ -158,7 +158,7 @@ sp_paint_selector_class_init(SPPaintSelectorClass *klass)
 {
     GtkObjectClass *object_class = (GtkObjectClass *) klass;
 
-    parent_class = (GtkVBoxClass*)gtk_type_class(GTK_TYPE_VBOX);
+    parent_class = (GtkVBoxClass*)g_type_class_peek_parent(klass);
 
     psel_signals[MODE_CHANGED] = g_signal_new("mode_changed",
                                                 G_TYPE_FROM_CLASS(object_class),
diff --git a/src/widgets/ruler.cpp b/src/widgets/ruler.cpp
index 7744f5433..60e460cda 100644
--- a/src/widgets/ruler.cpp
+++ b/src/widgets/ruler.cpp
@@ -67,7 +67,7 @@ sp_hruler_class_init (SPHRulerClass *klass)
   GtkWidgetClass *widget_class;
   GtkRulerClass *ruler_class;
 
-  hruler_parent_class = (GtkWidgetClass *) gtk_type_class (GTK_TYPE_RULER);
+  hruler_parent_class = (GtkWidgetClass *) g_type_class_peek_parent (klass);
 
   widget_class = (GtkWidgetClass*) klass;
   ruler_class = (GtkRulerClass*) klass;
@@ -153,7 +153,7 @@ sp_vruler_class_init (SPVRulerClass *klass)
   GtkWidgetClass *widget_class;
   GtkRulerClass *ruler_class;
 
-  vruler_parent_class = (GtkWidgetClass *) gtk_type_class (GTK_TYPE_RULER);
+  vruler_parent_class = (GtkWidgetClass *) g_type_class_peek_parent (klass);
 
   widget_class = (GtkWidgetClass*) klass;
   ruler_class = (GtkRulerClass*) klass;
diff --git a/src/widgets/sp-attribute-widget.cpp b/src/widgets/sp-attribute-widget.cpp
index 494a9997b..f7cd308b2 100644
--- a/src/widgets/sp-attribute-widget.cpp
+++ b/src/widgets/sp-attribute-widget.cpp
@@ -72,7 +72,7 @@ sp_attribute_widget_class_init (SPAttributeWidgetClass *klass)
     object_class = GTK_OBJECT_CLASS (klass);
     editable_class = GTK_EDITABLE_CLASS (klass);
 
-    parent_class = (GtkEntryClass*)gtk_type_class (GTK_TYPE_ENTRY);
+    parent_class = (GtkEntryClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_attribute_widget_destroy;
 
@@ -385,7 +385,7 @@ sp_attribute_table_class_init (SPAttributeTableClass *klass)
 {
     GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
 
-    table_parent_class = (GtkVBoxClass*)gtk_type_class (GTK_TYPE_VBOX);
+    table_parent_class = (GtkVBoxClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_attribute_table_destroy;
 
diff --git a/src/widgets/sp-color-notebook.cpp b/src/widgets/sp-color-notebook.cpp
index c347a1fca..377abf219 100644
--- a/src/widgets/sp-color-notebook.cpp
+++ b/src/widgets/sp-color-notebook.cpp
@@ -231,7 +231,7 @@ void ColorNotebook::init()
         if (!g_type_is_a (selector_types[i], SP_TYPE_COLOR_NOTEBOOK))
         {
             guint howmany = 1;
-            gpointer klass = gtk_type_class (selector_types[i]);
+            gpointer klass = g_type_class_ref (selector_types[i]);
             if ( klass && SP_IS_COLOR_SELECTOR_CLASS (klass) )
             {
                 SPColorSelectorClass *ck = SP_COLOR_SELECTOR_CLASS (klass);
diff --git a/src/widgets/sp-color-selector.cpp b/src/widgets/sp-color-selector.cpp
index bf3564d2e..b017ed923 100644
--- a/src/widgets/sp-color-selector.cpp
+++ b/src/widgets/sp-color-selector.cpp
@@ -68,7 +68,7 @@ void sp_color_selector_class_init( SPColorSelectorClass *klass )
     object_class = GTK_OBJECT_CLASS(klass);
     widget_class = GTK_WIDGET_CLASS(klass);
 
-    parent_class = GTK_VBOX_CLASS( gtk_type_class(GTK_TYPE_VBOX) );
+    parent_class = GTK_VBOX_CLASS( g_type_class_peek_parent(klass) );
 
     csel_signals[GRABBED] = g_signal_new( "grabbed",
                                             G_TYPE_FROM_CLASS(object_class),
diff --git a/src/widgets/sp-color-slider.cpp b/src/widgets/sp-color-slider.cpp
index 19bc73946..8fcbdf9af 100644
--- a/src/widgets/sp-color-slider.cpp
+++ b/src/widgets/sp-color-slider.cpp
@@ -83,7 +83,7 @@ sp_color_slider_class_init (SPColorSliderClass *klass)
 	object_class = (GtkObjectClass *) klass;
 	widget_class = (GtkWidgetClass *) klass;
 
-	parent_class = (GtkWidgetClass*)gtk_type_class (GTK_TYPE_WIDGET);
+	parent_class = (GtkWidgetClass*)g_type_class_peek_parent (klass);
 
 	slider_signals[GRABBED] = g_signal_new ("grabbed",
 						  G_TYPE_FROM_CLASS(object_class),
@@ -182,12 +182,9 @@ sp_color_slider_destroy (GtkObject *object)
 static void
 sp_color_slider_realize (GtkWidget *widget)
 {
-	SPColorSlider *slider;
 	GdkWindowAttr attributes;
 	gint attributes_mask;
 
-	slider = SP_COLOR_SLIDER (widget);
-
 	gtk_widget_set_realized (widget, TRUE);
 
 	attributes.window_type = GDK_WINDOW_CHILD;
@@ -216,10 +213,6 @@ sp_color_slider_realize (GtkWidget *widget)
 static void
 sp_color_slider_size_request (GtkWidget *widget, GtkRequisition *requisition)
 {
-	SPColorSlider *slider;
-
-	slider = SP_COLOR_SLIDER (widget);
-
 	requisition->width = SLIDER_WIDTH + widget->style->xthickness * 2;
 	requisition->height = SLIDER_HEIGHT + widget->style->ythickness * 2;
 }
@@ -227,10 +220,6 @@ sp_color_slider_size_request (GtkWidget *widget, GtkRequisition *requisition)
 static void
 sp_color_slider_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
 {
-	SPColorSlider *slider;
-
-	slider = SP_COLOR_SLIDER (widget);
-
 	widget->allocation = *allocation;
 
 	if (gtk_widget_get_realized (widget)) {
@@ -247,9 +236,6 @@ sp_color_slider_expose (GtkWidget *widget, GdkEventExpose *event)
 	slider = SP_COLOR_SLIDER (widget);
 
 	if (gtk_widget_is_drawable (widget)) {
-		gint width, height;
-		width = widget->allocation.width;
-		height = widget->allocation.height;
 		sp_color_slider_paint (slider, &event->area);
 	}
 
diff --git a/src/widgets/sp-widget.cpp b/src/widgets/sp-widget.cpp
index 8f9c6a6d7..ef8a6c03c 100644
--- a/src/widgets/sp-widget.cpp
+++ b/src/widgets/sp-widget.cpp
@@ -75,7 +75,7 @@ sp_widget_class_init (SPWidgetClass *klass)
 	object_class = (GtkObjectClass *) klass;
 	widget_class = (GtkWidgetClass *) klass;
 
-	parent_class = (GtkBinClass*)gtk_type_class (GTK_TYPE_BIN);
+	parent_class = (GtkBinClass*)g_type_class_peek_parent (klass);
 
 	object_class->destroy = sp_widget_destroy;
 
diff --git a/src/widgets/sp-xmlview-attr-list.cpp b/src/widgets/sp-xmlview-attr-list.cpp
index 535a4b534..9aa46a399 100644
--- a/src/widgets/sp-xmlview-attr-list.cpp
+++ b/src/widgets/sp-xmlview-attr-list.cpp
@@ -108,7 +108,7 @@ sp_xmlview_attr_list_class_init (SPXMLViewAttrListClass * klass)
 	object_class = (GtkObjectClass *) klass;
 	object_class->destroy = sp_xmlview_attr_list_destroy;
 
-	parent_class = (GtkCListClass*)gtk_type_class (GTK_TYPE_CLIST);
+	parent_class = (GtkCListClass*)g_type_class_peek_parent (klass);
 
         g_signal_new (  "row-value-changed",
 			G_TYPE_FROM_CLASS(klass),
diff --git a/src/widgets/sp-xmlview-content.cpp b/src/widgets/sp-xmlview-content.cpp
index 605fbeb06..1f35f2373 100644
--- a/src/widgets/sp-xmlview-content.cpp
+++ b/src/widgets/sp-xmlview-content.cpp
@@ -108,7 +108,7 @@ sp_xmlview_content_class_init (SPXMLViewContentClass * klass)
 
     object_class = (GtkObjectClass *) klass;
 
-    parent_class = (GtkTextViewClass*)gtk_type_class (GTK_TYPE_TEXT_VIEW);
+    parent_class = (GtkTextViewClass*)g_type_class_peek_parent (klass);
 
     object_class->destroy = sp_xmlview_content_destroy;
 }
diff --git a/src/widgets/sp-xmlview-tree.cpp b/src/widgets/sp-xmlview-tree.cpp
index e1779b620..b867b1044 100644
--- a/src/widgets/sp-xmlview-tree.cpp
+++ b/src/widgets/sp-xmlview-tree.cpp
@@ -153,7 +153,7 @@ sp_xmlview_tree_class_init (SPXMLViewTreeClass * klass)
 	GtkObjectClass * object_class;
 
 	object_class = (GtkObjectClass *) klass;
-	parent_class = (GtkCTreeClass *) gtk_type_class (GTK_TYPE_CTREE);
+	parent_class = (GtkCTreeClass *) g_type_class_peek_parent (klass);
 
 	GTK_CTREE_CLASS (object_class)->tree_move = tree_move;