void DrawBackground (Cairo.Context context, Gdk.Rectangle area)
{
if (Owner.BackgroundImage == null)
return;
context.RenderTiled (Owner.BackgroundImage, Allocation, Allocation, 1);
}
void DrawOverdraw (Cairo.Context context, double opacity)
{
if (Owner.BackgroundImage == null)
return;
context.RenderTiled (Owner.BackgroundImage, Allocation, new Gdk.Rectangle (Allocation.X, Allocation.Y + OverdrawOffset, Allocation.Width, Allocation.Height - OverdrawOffset), opacity);
}