private void InitializeDisplayPresenterElement()
{
if (DisplayPresenterElement == null)
{
return;
}
DisplayPresenterElement.AddHandler(ContentPresenter.MouseLeftButtonDownEvent,
new RoutedEventHandler(DisplayPresenter_LeftDown));
}
private void CalculatePopUpPosition()
{
if (PopUpElement == null || !PopUpElement.IsOpen || PopUpContainerElement == null || DisplayPresenterElement == null)
{
return;
}
var displayPosition = DisplayPresenterElement.PointToScreen(new Point(0, 0));
var popUpSize = new Size(PopUpContainerElement.ActualWidth, PopUpPresenterElement.ActualHeight);
var displaySize = new Size(DisplayPresenterElement.ActualWidth, DisplayPresenterElement.ActualHeight);
if (CalculateRectangle != null)
{
PopUpElement.PlacementRectangle = CalculateRectangle(displayPosition, popUpSize, displaySize);
}
}