private void OnDocumentDragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
if (!e.Data.GetDataPresent(typeof(ShapeTemplate)))
{
return;
}
if (document == null)
{
return;
}
ShapeTemplate template = (ShapeTemplate)e.Data.GetData(typeof(ShapeTemplate));
Point ptClient = document.PointToClient(new Point(e.X, e.Y));
PointF ptDoc = document.ClientToDoc(ptClient);
Box box = document.CreateBox(ptDoc.X, ptDoc.Y,
defaultBoxSize.Width, defaultBoxSize.Height);
box.Style = BoxStyle.Shape;
box.Shape = template;
}