public static void Start(ref GrayOutDesignerExceptActiveArea grayOut, ServiceContainer services,
UIElement activeContainer, Rect activeRectInActiveContainer)
{
Debug.Assert(services != null);
Debug.Assert(activeContainer != null);
DesignPanel designPanel = services.GetService <IDesignPanel>() as DesignPanel;
OptionService optionService = services.GetService <OptionService>();
if (designPanel != null && grayOut == null && optionService != null &&
optionService.GrayOutDesignSurfaceExceptParentContainerWhenDragging)
{
grayOut = new GrayOutDesignerExceptActiveArea();
grayOut.designSurfaceRectangle = new RectangleGeometry(
new Rect(0, 0, ((Border)designPanel.Child).Child.RenderSize.Width,
((Border)designPanel.Child).Child.RenderSize.Height));
grayOut.designPanel = designPanel;
grayOut.adornerPanel = new AdornerPanel();
grayOut.adornerPanel.Order = AdornerOrder.BehindForeground;
grayOut.adornerPanel.SetAdornedElement(designPanel.Context.RootItem.View, null);
grayOut.adornerPanel.Children.Add(grayOut);
grayOut.ActiveAreaGeometry = new RectangleGeometry(activeRectInActiveContainer, 0, 0,
(Transform)activeContainer.TransformToVisual(grayOut.adornerPanel.AdornedElement));
Animate(grayOut.GrayOutBrush, Brush.OpacityProperty, MaxOpacity);
designPanel.Adorners.Add(grayOut.adornerPanel);
}
}
public static void Stop(ref GrayOutDesignerExceptActiveArea grayOut)
{
if (grayOut != null)
{
Animate(grayOut.GrayOutBrush, Brush.OpacityProperty, 0);
IDesignPanel designPanel = grayOut.designPanel;
AdornerPanel adornerPanelToRemove = grayOut.adornerPanel;
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = animationTime;
timer.Tick += delegate
{
timer.Stop();
designPanel.Adorners.Remove(adornerPanelToRemove);
};
timer.Start();
grayOut = null;
}
}
public static void Start(ref GrayOutDesignerExceptActiveArea grayOut, ServiceContainer services,
UIElement activeContainer)
{
Debug.Assert(activeContainer != null);
Start(ref grayOut, services, activeContainer, new Rect(activeContainer.RenderSize));
}