private void UpdateView(DragEventArgs e)
{
e.Handled = true;
var hitPoint = GetCenterAdjustedPosition(HitTestReferenceElement.TrueCursorPosition());
if (_ScrollHelper != null)
{
_ScrollHelper.DoScroll(hitPoint);
}
bool canDrop = false;
if (_NewPageHelper != null)
{
canDrop = _NewPageHelper.UpdateVisual(hitPoint, _ScrollHelper.IsScrolling);
}
canDrop = canDrop | _TileDropHelper.UpdateView(hitPoint, canDrop | _ScrollHelper.IsScrolling);
UpdateAdornerPosition(e);
if (hitPoint.Y >= 0 && hitPoint.Y <= _MetroControlPanel.ActualHeight)
{
e.Effects = DragDropEffects.Move;
}
else
{
e.Effects = DragDropEffects.None;
}
}
private void HandleDrop(object sender, DragEventArgs e)
{
e.Handled = true;
var hitPoint = GetCenterAdjustedPosition(HitTestReferenceElement.TrueCursorPosition());
if (_ScrollHelper != null)
{
_ScrollHelper.Stop();
}
bool dropped = false;
if (_NewPageHelper != null)
{
dropped = _NewPageHelper.HandleDropped(hitPoint);
}
dropped |= _TileDropHelper.HandleDropped(hitPoint);
if (dropped)
{
if (_DragSourcePage.Items.Count == 0)
{
_MetroControl.RemoveContainer(_DragSourcePage);
}
}
}
private Point TranslateHitPoint(Point hitPoint, FrameworkElement relativeTo)
{
if (relativeTo == HitTestReferenceElement)
{
return(hitPoint);
}
return(HitTestReferenceElement.TranslatePoint(hitPoint, relativeTo));
}
