]> Pileus Git - ~andy/gtk/blobdiff - tests/gtkoffscreenbox.c
stylecontext: Do invalidation on first resize container
[~andy/gtk] / tests / gtkoffscreenbox.c
index e7fa941d921c1800d106d4e05468560674d9d57b..7aeb82cdfd397931dfee78f0bb742c790b4b3e04 100644 (file)
 
 static void        gtk_offscreen_box_realize       (GtkWidget       *widget);
 static void        gtk_offscreen_box_unrealize     (GtkWidget       *widget);
-static void        gtk_offscreen_box_size_request  (GtkWidget       *widget,
-                                                    GtkRequisition  *requisition);
+static void        gtk_offscreen_box_get_preferred_width  (GtkWidget *widget,
+                                                           gint      *minimum,
+                                                           gint      *natural);
+static void        gtk_offscreen_box_get_preferred_height (GtkWidget *widget,
+                                                           gint      *minimum,
+                                                           gint      *natural);
 static void        gtk_offscreen_box_size_allocate (GtkWidget       *widget,
                                                     GtkAllocation   *allocation);
 static gboolean    gtk_offscreen_box_damage        (GtkWidget       *widget,
                                                     GdkEventExpose  *event);
-static gboolean    gtk_offscreen_box_expose        (GtkWidget       *widget,
-                                                    GdkEventExpose  *offscreen);
+static gboolean    gtk_offscreen_box_draw          (GtkWidget       *widget,
+                                                    cairo_t         *cr);
 
 static void        gtk_offscreen_box_add           (GtkContainer    *container,
                                                     GtkWidget       *child);
@@ -47,10 +51,13 @@ to_child_2 (GtkOffscreenBox *offscreen_box,
   x = widget_x;
   y = widget_y;
 
-  if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
-    y -= offscreen_box->child1->allocation.height;
+  if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
+    {
+      gtk_widget_get_allocation (offscreen_box->child1, &child_area);
+      y -= child_area.height;
+    }
 
-  child_area = offscreen_box->child2->allocation;
+  gtk_widget_get_allocation (offscreen_box->child2, &child_area);
 
   x -= child_area.width / 2;
   y -= child_area.height / 2;
@@ -79,7 +86,7 @@ to_parent_2 (GtkOffscreenBox *offscreen_box,
   double x, y, xr, yr;
   double cos_angle, sin_angle;
 
-  child_area = offscreen_box->child2->allocation;
+  gtk_widget_get_allocation (offscreen_box->child2, &child_area);
 
   x = offscreen_x;
   y = offscreen_y;
@@ -98,8 +105,11 @@ to_parent_2 (GtkOffscreenBox *offscreen_box,
   x += child_area.width / 2;
   y += child_area.height / 2;
 
-  if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
-    y += offscreen_box->child1->allocation.height;
+  if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
+    {
+      gtk_widget_get_allocation (offscreen_box->child1, &child_area);
+      y += child_area.height;
+    }
 
   *x_out = x;
   *y_out = y;
@@ -113,9 +123,10 @@ gtk_offscreen_box_class_init (GtkOffscreenBoxClass *klass)
 
   widget_class->realize = gtk_offscreen_box_realize;
   widget_class->unrealize = gtk_offscreen_box_unrealize;
-  widget_class->size_request = gtk_offscreen_box_size_request;
+  widget_class->get_preferred_width = gtk_offscreen_box_get_preferred_width;
+  widget_class->get_preferred_height = gtk_offscreen_box_get_preferred_height;
   widget_class->size_allocate = gtk_offscreen_box_size_allocate;
-  widget_class->expose_event = gtk_offscreen_box_expose;
+  widget_class->draw = gtk_offscreen_box_draw;
 
   g_signal_override_class_closure (g_signal_lookup ("damage-event", GTK_TYPE_WIDGET),
                                    GTK_TYPE_OFFSCREEN_BOX,
@@ -131,7 +142,7 @@ gtk_offscreen_box_class_init (GtkOffscreenBoxClass *klass)
 static void
 gtk_offscreen_box_init (GtkOffscreenBox *offscreen_box)
 {
-  GTK_WIDGET_UNSET_FLAGS (offscreen_box, GTK_NO_WINDOW);
+  gtk_widget_set_has_window (GTK_WIDGET (offscreen_box), TRUE);
 }
 
 GtkWidget *
@@ -150,25 +161,25 @@ pick_offscreen_child (GdkWindow *offscreen_window,
 
  /* First check for child 2 */
  if (offscreen_box->child2 &&
-     GTK_WIDGET_VISIBLE (offscreen_box->child2))
+     gtk_widget_get_visible (offscreen_box->child2))
     {
       to_child_2 (offscreen_box,
                  widget_x, widget_y,
                  &x, &y);
 
-      child_area = offscreen_box->child2->allocation;
+      gtk_widget_get_allocation (offscreen_box->child2, &child_area);
 
       if (x >= 0 && x < child_area.width &&
          y >= 0 && y < child_area.height)
        return offscreen_box->offscreen_window2;
     }
 
- if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+ if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
    {
      x = widget_x;
      y = widget_y;
 
-     child_area = offscreen_box->child1->allocation;
+     gtk_widget_get_allocation (offscreen_box->child1, &child_area);
 
      if (x >= 0 && x < child_area.width &&
         y >= 0 && y < child_area.height)
@@ -228,24 +239,37 @@ offscreen_window_from_parent2 (GdkWindow       *window,
              offscreen_x, offscreen_y);
 }
 
+static cairo_surface_t *
+gdk_offscreen_box_create_alpha_image_surface (GdkWindow *offscreen,
+                                              gint       width,
+                                              gint       height)
+{
+  return cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+}
+
 static void
 gtk_offscreen_box_realize (GtkWidget *widget)
 {
   GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+  GtkAllocation allocation, child_area;
+  GtkStyleContext *context;
+  GdkWindow *window;
   GdkWindowAttr attributes;
   gint attributes_mask;
-  gint border_width;
+  guint border_width;
   GtkRequisition child_requisition;
   int start_y = 0;
 
-  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+  gtk_widget_set_realized (widget, TRUE);
+
+  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 
-  border_width = GTK_CONTAINER (widget)->border_width;
+  gtk_widget_get_allocation (widget, &allocation);
 
-  attributes.x = widget->allocation.x + border_width;
-  attributes.y = widget->allocation.y + border_width;
-  attributes.width = widget->allocation.width - 2 * border_width;
-  attributes.height = widget->allocation.height - 2 * border_width;
+  attributes.x = allocation.x + border_width;
+  attributes.y = allocation.y + border_width;
+  attributes.width = allocation.width - 2 * border_width;
+  attributes.height = allocation.height - 2 * border_width;
   attributes.window_type = GDK_WINDOW_CHILD;
   attributes.event_mask = gtk_widget_get_events (widget)
                        | GDK_EXPOSURE_MASK
@@ -257,27 +281,29 @@ gtk_offscreen_box_realize (GtkWidget *widget)
                        | GDK_LEAVE_NOTIFY_MASK;
 
   attributes.visual = gtk_widget_get_visual (widget);
-  attributes.colormap = gtk_widget_get_colormap (widget);
   attributes.wclass = GDK_INPUT_OUTPUT;
 
-  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
 
-  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
-                                  &attributes, attributes_mask);
-  gdk_window_set_user_data (widget->window, widget);
+  window = gdk_window_new (gtk_widget_get_parent_window (widget),
+                           &attributes, attributes_mask);
+  gtk_widget_set_window (widget, window);
+  gdk_window_set_user_data (window, widget);
 
-  g_signal_connect (widget->window, "pick-embedded-child",
+  g_signal_connect (window, "pick-embedded-child",
                    G_CALLBACK (pick_offscreen_child), offscreen_box);
 
   attributes.window_type = GDK_WINDOW_OFFSCREEN;
 
   /* Child 1 */
   attributes.x = attributes.y = 0;
-  if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+  if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
     {
-      attributes.width = offscreen_box->child1->allocation.width;
-      attributes.height = offscreen_box->child1->allocation.height;
-      start_y += offscreen_box->child1->allocation.height;
+      gtk_widget_get_allocation (offscreen_box->child1, &child_area);
+
+      attributes.width = child_area.width;
+      attributes.height = child_area.height;
+      start_y += child_area.height;
     }
   offscreen_box->offscreen_window1 = gdk_window_new (gtk_widget_get_root_window (widget),
                                                     &attributes, attributes_mask);
@@ -286,8 +312,8 @@ gtk_offscreen_box_realize (GtkWidget *widget)
     gtk_widget_set_parent_window (offscreen_box->child1, offscreen_box->offscreen_window1);
 
   gdk_offscreen_window_set_embedder (offscreen_box->offscreen_window1,
-                                    widget->window);
-  
+                                    window);
+
   g_signal_connect (offscreen_box->offscreen_window1, "to-embedder",
                    G_CALLBACK (offscreen_window_to_parent1), offscreen_box);
   g_signal_connect (offscreen_box->offscreen_window1, "from-embedder",
@@ -296,10 +322,12 @@ gtk_offscreen_box_realize (GtkWidget *widget)
   /* Child 2 */
   attributes.y = start_y;
   child_requisition.width = child_requisition.height = 0;
-  if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+  if (offscreen_box->child2 && gtk_widget_get_visible (offscreen_box->child2))
     {
-      attributes.width = offscreen_box->child2->allocation.width;
-      attributes.height = offscreen_box->child2->allocation.height;
+      gtk_widget_get_allocation (offscreen_box->child2, &child_area);
+
+      attributes.width = child_area.width;
+      attributes.height = child_area.height;
     }
   offscreen_box->offscreen_window2 = gdk_window_new (gtk_widget_get_root_window (widget),
                                                     &attributes, attributes_mask);
@@ -307,17 +335,20 @@ gtk_offscreen_box_realize (GtkWidget *widget)
   if (offscreen_box->child2)
     gtk_widget_set_parent_window (offscreen_box->child2, offscreen_box->offscreen_window2);
   gdk_offscreen_window_set_embedder (offscreen_box->offscreen_window2,
-                                    widget->window);
+                                    window);
+
+  g_signal_connect (offscreen_box->offscreen_window2, "create-surface",
+                    G_CALLBACK (gdk_offscreen_box_create_alpha_image_surface),
+                    offscreen_box);
   g_signal_connect (offscreen_box->offscreen_window2, "to-embedder",
                    G_CALLBACK (offscreen_window_to_parent2), offscreen_box);
   g_signal_connect (offscreen_box->offscreen_window2, "from-embedder",
                    G_CALLBACK (offscreen_window_from_parent2), offscreen_box);
 
-  widget->style = gtk_style_attach (widget->style, widget->window);
-
-  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
-  gtk_style_set_background (widget->style, offscreen_box->offscreen_window1, GTK_STATE_NORMAL);
-  gtk_style_set_background (widget->style, offscreen_box->offscreen_window2, GTK_STATE_NORMAL);
+  context = gtk_widget_get_style_context (widget);
+  gtk_style_context_set_background (context, window);
+  gtk_style_context_set_background (context, offscreen_box->offscreen_window1);
+  gtk_style_context_set_background (context, offscreen_box->offscreen_window2);
 
   gdk_window_show (offscreen_box->offscreen_window1);
   gdk_window_show (offscreen_box->offscreen_window2);
@@ -401,7 +432,7 @@ gtk_offscreen_box_remove (GtkContainer *container,
   GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (container);
   gboolean was_visible;
 
-  was_visible = GTK_WIDGET_VISIBLE (widget);
+  was_visible = gtk_widget_get_visible (widget);
 
   if (offscreen_box->child1 == widget)
     {
@@ -409,7 +440,7 @@ gtk_offscreen_box_remove (GtkContainer *container,
 
       offscreen_box->child1 = NULL;
 
-      if (was_visible && GTK_WIDGET_VISIBLE (container))
+      if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
        gtk_widget_queue_resize (GTK_WIDGET (container));
     }
   else if (offscreen_box->child2 == widget)
@@ -418,7 +449,7 @@ gtk_offscreen_box_remove (GtkContainer *container,
 
       offscreen_box->child2 = NULL;
 
-      if (was_visible && GTK_WIDGET_VISIBLE (container))
+      if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
        gtk_widget_queue_resize (GTK_WIDGET (container));
     }
 }
@@ -458,32 +489,60 @@ gtk_offscreen_box_size_request (GtkWidget      *widget,
 {
   GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
   int w, h;
+  guint border_width;
 
   w = 0;
   h = 0;
 
-  if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+  if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
     {
       GtkRequisition child_requisition;
 
-      gtk_widget_size_request (offscreen_box->child1, &child_requisition);
+      gtk_widget_get_preferred_size ( (offscreen_box->child1),
+                                 &child_requisition, NULL);
 
       w = MAX (w, CHILD1_SIZE_SCALE * child_requisition.width);
       h += CHILD1_SIZE_SCALE * child_requisition.height;
     }
 
-  if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+  if (offscreen_box->child2 && gtk_widget_get_visible (offscreen_box->child2))
     {
       GtkRequisition child_requisition;
 
-      gtk_widget_size_request (offscreen_box->child2, &child_requisition);
+      gtk_widget_get_preferred_size ( (offscreen_box->child2),
+                                 &child_requisition, NULL);
 
       w = MAX (w, CHILD2_SIZE_SCALE * child_requisition.width);
       h += CHILD2_SIZE_SCALE * child_requisition.height;
     }
 
-  requisition->width = GTK_CONTAINER (widget)->border_width * 2 + w;
-  requisition->height = GTK_CONTAINER (widget)->border_width * 2 + h;
+  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+  requisition->width = border_width * 2 + w;
+  requisition->height = border_width * 2 + h;
+}
+
+static void
+gtk_offscreen_box_get_preferred_width (GtkWidget *widget,
+                                       gint      *minimum,
+                                       gint      *natural)
+{
+  GtkRequisition requisition;
+
+  gtk_offscreen_box_size_request (widget, &requisition);
+
+  *minimum = *natural = requisition.width;
+}
+
+static void
+gtk_offscreen_box_get_preferred_height (GtkWidget *widget,
+                                        gint      *minimum,
+                                        gint      *natural)
+{
+  GtkRequisition requisition;
+
+  gtk_offscreen_box_size_request (widget, &requisition);
+
+  *minimum = *natural = requisition.height;
 }
 
 static void
@@ -491,16 +550,17 @@ gtk_offscreen_box_size_allocate (GtkWidget     *widget,
                                 GtkAllocation *allocation)
 {
   GtkOffscreenBox *offscreen_box;
-  gint border_width;
   gint start_y;
+  guint border_width;
 
-  widget->allocation = *allocation;
   offscreen_box = GTK_OFFSCREEN_BOX (widget);
 
-  border_width = GTK_CONTAINER (widget)->border_width;
+  gtk_widget_set_allocation (widget, allocation);
 
-  if (GTK_WIDGET_REALIZED (widget))
-    gdk_window_move_resize (widget->window,
+  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+  if (gtk_widget_get_realized (widget))
+    gdk_window_move_resize (gtk_widget_get_window (widget),
                             allocation->x + border_width,
                             allocation->y + border_width,
                             allocation->width - border_width * 2,
@@ -508,20 +568,21 @@ gtk_offscreen_box_size_allocate (GtkWidget     *widget,
 
   start_y = 0;
 
-  if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
+  if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
     {
       GtkRequisition child_requisition;
       GtkAllocation child_allocation;
 
-      gtk_widget_get_child_requisition (offscreen_box->child1, &child_requisition);
+      gtk_widget_get_preferred_size (offscreen_box->child1,
+                                     &child_requisition, NULL);
       child_allocation.x = child_requisition.width * (CHILD1_SIZE_SCALE - 1.0) / 2;
       child_allocation.y = start_y + child_requisition.height * (CHILD1_SIZE_SCALE - 1.0) / 2;
-      child_allocation.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
+      child_allocation.width = MAX (1, (gint) allocation->width - 2 * border_width);
       child_allocation.height = child_requisition.height;
 
       start_y += CHILD1_SIZE_SCALE * child_requisition.height;
 
-      if (GTK_WIDGET_REALIZED (widget))
+      if (gtk_widget_get_realized (widget))
        gdk_window_move_resize (offscreen_box->offscreen_window1,
                                child_allocation.x,
                                 child_allocation.y,
@@ -532,20 +593,21 @@ gtk_offscreen_box_size_allocate (GtkWidget     *widget,
       gtk_widget_size_allocate (offscreen_box->child1, &child_allocation);
     }
 
-  if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
+  if (offscreen_box->child2 && gtk_widget_get_visible (offscreen_box->child2))
     {
       GtkRequisition child_requisition;
       GtkAllocation child_allocation;
 
-      gtk_widget_get_child_requisition (offscreen_box->child2, &child_requisition);
+      gtk_widget_get_preferred_size (offscreen_box->child2,
+                                     &child_requisition, NULL);
       child_allocation.x = child_requisition.width * (CHILD2_SIZE_SCALE - 1.0) / 2;
       child_allocation.y = start_y + child_requisition.height * (CHILD2_SIZE_SCALE - 1.0) / 2;
-      child_allocation.width = MAX (1, (gint) widget->allocation.width - 2 * border_width);
+      child_allocation.width = MAX (1, (gint) allocation->width - 2 * border_width);
       child_allocation.height = child_requisition.height;
 
       start_y += CHILD2_SIZE_SCALE * child_requisition.height;
 
-      if (GTK_WIDGET_REALIZED (widget))
+      if (gtk_widget_get_realized (widget))
        gdk_window_move_resize (offscreen_box->offscreen_window2,
                                child_allocation.x,
                                 child_allocation.y,
@@ -561,92 +623,76 @@ static gboolean
 gtk_offscreen_box_damage (GtkWidget      *widget,
                           GdkEventExpose *event)
 {
-  gdk_window_invalidate_rect (widget->window, NULL, FALSE);
+  gdk_window_invalidate_rect (gtk_widget_get_window (widget),
+                              NULL, FALSE);
 
   return TRUE;
 }
 
 static gboolean
-gtk_offscreen_box_expose (GtkWidget      *widget,
-                         GdkEventExpose *event)
+gtk_offscreen_box_draw (GtkWidget *widget,
+                        cairo_t   *cr)
 {
   GtkOffscreenBox *offscreen_box = GTK_OFFSCREEN_BOX (widget);
+  GdkWindow *window;
+
+  window = gtk_widget_get_window (widget);
+  if (gtk_cairo_should_draw_window (cr, window))
+    {
+      cairo_surface_t *surface;
+      GtkAllocation child_area;
+
+      if (offscreen_box->child1 && gtk_widget_get_visible (offscreen_box->child1))
+        {
+          surface = gdk_offscreen_window_get_surface (offscreen_box->offscreen_window1);
+
+          cairo_set_source_surface (cr, surface, 0, 0);
+          cairo_paint (cr);
 
-  if (gtk_widget_is_drawable (widget))
+          gtk_widget_get_allocation (offscreen_box->child1, &child_area);
+          cairo_translate (cr, 0, child_area.height);
+        }
+
+      if (offscreen_box->child2 && gtk_widget_get_visible (offscreen_box->child2))
+        {
+          surface = gdk_offscreen_window_get_surface (offscreen_box->offscreen_window2);
+
+          gtk_widget_get_allocation (offscreen_box->child2, &child_area);
+
+          /* transform */
+          cairo_translate (cr, child_area.width / 2, child_area.height / 2);
+          cairo_rotate (cr, offscreen_box->angle);
+          cairo_translate (cr, -child_area.width / 2, -child_area.height / 2);
+
+          /* paint */
+          cairo_set_source_surface (cr, surface, 0, 0);
+          cairo_paint (cr);
+        }
+    }
+  else if (gtk_cairo_should_draw_window (cr, offscreen_box->offscreen_window1))
+    {
+      gtk_render_background (gtk_widget_get_style_context (widget), cr,
+                             0, 0,
+
+                             gdk_window_get_width (offscreen_box->offscreen_window1),
+                             gdk_window_get_height (offscreen_box->offscreen_window1));
+
+      if (offscreen_box->child1)
+        gtk_container_propagate_draw (GTK_CONTAINER (widget),
+                                      offscreen_box->child1,
+                                      cr);
+    }
+  else if (gtk_cairo_should_draw_window (cr, offscreen_box->offscreen_window2))
     {
-      if (event->window == widget->window)
-       {
-          GdkPixmap *pixmap;
-          GtkAllocation child_area;
-          cairo_t *cr;
-         int start_y = 0;
-
-         if (offscreen_box->child1 && GTK_WIDGET_VISIBLE (offscreen_box->child1))
-           {
-             pixmap = gdk_offscreen_window_get_pixmap (offscreen_box->offscreen_window1);
-              child_area = offscreen_box->child1->allocation;
-
-             cr = gdk_cairo_create (widget->window);
-
-              gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
-              cairo_paint (cr);
-
-              cairo_destroy (cr);
-
-              start_y += child_area.height;
-           }
-
-         if (offscreen_box->child2 && GTK_WIDGET_VISIBLE (offscreen_box->child2))
-           {
-              gint w, h;
-
-             pixmap = gdk_offscreen_window_get_pixmap (offscreen_box->offscreen_window2);
-              child_area = offscreen_box->child2->allocation;
-
-             cr = gdk_cairo_create (widget->window);
-
-              /* transform */
-             cairo_translate (cr, 0, start_y);
-             cairo_translate (cr, child_area.width / 2, child_area.height / 2);
-             cairo_rotate (cr, offscreen_box->angle);
-             cairo_translate (cr, -child_area.width / 2, -child_area.height / 2);
-
-              /* clip */
-              gdk_drawable_get_size (pixmap, &w, &h);
-              cairo_rectangle (cr, 0, 0, w, h);
-              cairo_clip (cr);
-
-              /* paint */
-             gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
-             cairo_paint (cr);
-
-              cairo_destroy (cr);
-           }
-       }
-      else if (event->window == offscreen_box->offscreen_window1)
-       {
-         gtk_paint_flat_box (widget->style, event->window,
-                             GTK_STATE_NORMAL, GTK_SHADOW_NONE,
-                             &event->area, widget, "blah",
-                             0, 0, -1, -1);
-
-         if (offscreen_box->child1)
-           gtk_container_propagate_expose (GTK_CONTAINER (widget),
-                                           offscreen_box->child1,
-                                            event);
-       }
-      else if (event->window == offscreen_box->offscreen_window2)
-       {
-         gtk_paint_flat_box (widget->style, event->window,
-                             GTK_STATE_NORMAL, GTK_SHADOW_NONE,
-                             &event->area, widget, "blah",
-                             0, 0, -1, -1);
-
-         if (offscreen_box->child2)
-           gtk_container_propagate_expose (GTK_CONTAINER (widget),
-                                           offscreen_box->child2,
-                                            event);
-       }
+      gtk_render_background (gtk_widget_get_style_context (widget), cr,
+                             0, 0,
+                             gdk_window_get_width (offscreen_box->offscreen_window2),
+                             gdk_window_get_height (offscreen_box->offscreen_window2));
+
+      if (offscreen_box->child2)
+        gtk_container_propagate_draw (GTK_CONTAINER (widget),
+                                      offscreen_box->child2,
+                                      cr);
     }
 
   return FALSE;