public override void LeaveContainer(PlacementOperation operation)
{
GrayOutDesignerExceptActiveArea.Stop(ref grayOut);
base.LeaveContainer(operation);
foreach (PlacementInformation info in operation.PlacedItems)
{
info.Item.Properties.GetAttachedProperty(Canvas.LeftProperty).Reset();
info.Item.Properties.GetAttachedProperty(Canvas.TopProperty).Reset();
}
}
protected override void OnStopped()
{
if (adornerPanel != null)
{
designPanel.Adorners.Remove(adornerPanel);
adornerPanel = null;
}
GrayOutDesignerExceptActiveArea.Stop(ref grayOut);
selectionFrame = null;
base.OnStopped();
}
public override void LeaveContainer(PlacementOperation operation)
{
GrayOutDesignerExceptActiveArea.Stop(ref grayOut);
base.LeaveContainer(operation);
foreach (PlacementInformation info in operation.PlacedItems)
{
if (info.Item.ComponentType == typeof(ColumnDefinition))
{
// TODO: combine the width of the deleted column with the previous column
this.ExtendedItem.Properties["ColumnDefinitions"].CollectionElements.Remove(info.Item);
}
else if (info.Item.ComponentType == typeof(RowDefinition))
{
this.ExtendedItem.Properties["RowDefinitions"].CollectionElements.Remove(info.Item);
}
else
{
info.Item.Properties.GetAttachedProperty(Grid.RowProperty).Reset();
info.Item.Properties.GetAttachedProperty(Grid.ColumnProperty).Reset();
info.Item.Properties.GetAttachedProperty(Grid.RowSpanProperty).Reset();
info.Item.Properties.GetAttachedProperty(Grid.ColumnSpanProperty).Reset();
HorizontalAlignment ha = (HorizontalAlignment)info.Item
.Properties[FrameworkElement.HorizontalAlignmentProperty]
.ValueOnInstance;
VerticalAlignment va = (VerticalAlignment)info.Item
.Properties[FrameworkElement.VerticalAlignmentProperty]
.ValueOnInstance;
if (ha == HorizontalAlignment.Stretch)
{
info.Item.Properties[FrameworkElement.WidthProperty].SetValue(info.Bounds.Width);
}
if (va == VerticalAlignment.Stretch)
{
info.Item.Properties[FrameworkElement.HeightProperty].SetValue(info.Bounds.Height);
}
}
}
}
public override void EndPlacement(PlacementOperation operation)
{
GrayOutDesignerExceptActiveArea.Stop(ref grayOut);
base.EndPlacement(operation);
}
public override void EndPlacement(PlacementOperation operation)
{
GrayOutDesignerExceptActiveArea.Stop(ref grayOut);
enteredIntoNewContainer = false;
base.EndPlacement(operation);
}