protected virtual Shapes.IDiagramShapeCollection DoExternalDrop(DragEventArgs evt)
{
DiagramSelection selection1 = evt.Data.GetData(typeof(DiagramSelection)) as DiagramSelection;
if (selection1 != null)
{
DiagramDocument document1 = this.Document;
if (document1 != null)
{
PointF tf1 = this.LastInput.DocPoint;
Shapes.DiagramShape obj2 = selection1.Primary;
if (obj2 != null)
{
string text1 = null;
Shapes.DiagramShapeCollection collection1 = new Shapes.DiagramShapeCollection();
try
{
this.StartTransaction();
SizeF ef1 = DiagramTool.SubtractPoints(tf1, new PointF(obj2.Left + selection1.HotSpot.Width, obj2.Top + selection1.HotSpot.Height));
CopyDictionary dictionary1 = document1.CopyFromCollection(selection1, false, true, ef1, null);
foreach (Shapes.DiagramShape obj4 in dictionary1.Values)
{
if (((obj4 == null) || !obj4.IsTopLevel) || (obj4.Document != document1))
{
continue;
}
collection1.Add(obj4);
if (this.GridSnapDrag != DiagramViewSnapStyle.None)
{
PointF tf2 = obj4.Location;
PointF tf3 = this.FindNearestGridPoint(tf2);
obj4.DoMove(this, tf2, tf3);
}
}
DiagramSelection selection2 = this.Selection;
selection2.Clear();
Shapes.DiagramShape obj5 = (Shapes.DiagramShape)dictionary1[obj2];
if ((obj5 != null) && collection1.Contains(obj5))
{
selection2.Add(obj5);
}
CollectionEnumerator enumerator2 = collection1.GetEnumerator();
while (enumerator2.MoveNext())
{
Shapes.DiagramShape obj6 = enumerator2.Current;
selection2.Add(obj6);
}
selection2.HotSpot = selection1.HotSpot;
text1 = "Drop";
this.RaiseExternalObjectsDropped(this.LastInput);
}
finally
{
this.FinishTransaction(text1);
}
return collection1;
}
}
}
return null;
}
