internal override void OnMouseUp(MouseButtonEventArgs e)
{
if (selectPosition.HasValue && e.ChangedButton == dragButton)
{
if (beginSelect)
{
border.Visibility = Visibility.Collapsed;
border.Dispose();
border = null;
beginSelect = false;
}
selectPosition = null;
}
}
internal override void OnMouseMove(MouseEventArgs e)
{
if (selectPosition.HasValue)
{
if (!beginSelect)
{
// detect select
var dragDiff = selectPosition.Value - e.GetPosition(TreeView);
if ((Math.Abs(dragDiff.X) > SystemParameters.MinimumHorizontalDragDistance || Math.Abs(dragDiff.Y) > SystemParameters.MinimumVerticalDragDistance))
{
// begin select
border = new BorderSelectionAdorner(TreeView);
beginSelect = true;
}
}
if (beginSelect)
{
HandleInput(e);
}
}
}