[gtk+/wip/window-scales2: 28/40] GtkIconHelper: Add set_window()

[Alexander Larsson <alexl src gnome org>]

commit 5d8fd4ee247230e4ab97c223e618791f25f3ba24
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Jun 24 14:05:27 2013 +0200

    GtkIconHelper: Add set_window()
    
    This is a hint on where the icon will be drawn. It
    will allow us to pre-allocate cairo surfaces for the right
    target.

 gtk/gtkiconhelper.c        |   14 ++++++++++++++
 gtk/gtkiconhelperprivate.h |    2 ++
 2 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkiconhelper.c b/gtk/gtkiconhelper.c
index 1ec7b85..629f007 100644
--- a/gtk/gtkiconhelper.c
+++ b/gtk/gtkiconhelper.c
@@ -26,6 +26,8 @@ G_DEFINE_TYPE (GtkIconHelper, _gtk_icon_helper, G_TYPE_OBJECT)
 struct _GtkIconHelperPrivate {
   GtkImageType storage_type;
 
+  GdkWindow *window;
+
   GdkPixbuf *orig_pixbuf;
   GdkPixbufAnimation *animation;
   GIcon *gicon;
@@ -50,6 +52,7 @@ _gtk_icon_helper_clear (GtkIconHelper *self)
   g_clear_object (&self->priv->orig_pixbuf);
   g_clear_object (&self->priv->animation);
   g_clear_object (&self->priv->rendered_pixbuf);
+  g_clear_object (&self->priv->window);
 
   if (self->priv->icon_set != NULL)
     {
@@ -76,6 +79,17 @@ _gtk_icon_helper_invalidate (GtkIconHelper *self)
   g_clear_object (&self->priv->rendered_pixbuf);
 }
 
+void
+ _gtk_icon_helper_set_window (GtkIconHelper *self,
+                             GdkWindow *window)
+{
+  if (window)
+    g_object_ref (window);
+  g_clear_object (&self->priv->window);
+  self->priv->window = window;
+
+}
+
 static void
 gtk_icon_helper_finalize (GObject *object)
 {
diff --git a/gtk/gtkiconhelperprivate.h b/gtk/gtkiconhelperprivate.h
index c2b9f08..10467be 100644
--- a/gtk/gtkiconhelperprivate.h
+++ b/gtk/gtkiconhelperprivate.h
@@ -70,6 +70,8 @@ GtkIconHelper *_gtk_icon_helper_new (void);
 
 void _gtk_icon_helper_clear (GtkIconHelper *self);
 void _gtk_icon_helper_invalidate (GtkIconHelper *self);
+void _gtk_icon_helper_set_window (GtkIconHelper *self,
+                                 GdkWindow *window);
 
 gboolean _gtk_icon_helper_get_is_empty (GtkIconHelper *self);