protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.LeftButton == MouseButtonState.Pressed)
{
Point position = e.GetPosition(this);
Size dragSize = new Size(
SystemParameters.MinimumHorizontalDragDistance,
SystemParameters.MinimumVerticalDragDistance);
if (Math.Abs(position.X - this.beginPosition.X) > dragSize.Width / 2 ||
Math.Abs(position.Y - this.beginPosition.Y) > dragSize.Height / 2)
{
ShowPreviewWindow();
var request = new ItemDropRequest(Model.Metadata.Element);
if (Model is ToolBoxItemFunctionModel functionModel)
{
request.Data = functionModel.MethodInfo;
}
DragDrop.DoDragDrop(this, request, DragDropEffects.None);
HidePreviewWindow();
Selector.SetIsSelected(this, false);
}
}
}
public override bool CanDrop(ItemDropRequest request, Point mouse)
{
return(true);
}
public override bool CanDrop(ItemDropRequest request, Point mouse)
{
return(request != null);
}
