void ISectionHost.DoDragDropOperation(Section sectionToDrag)
{
_draggingSections = sectionToDrag.GetExpandedDragList();
object[] data = sectionToDrag.GetDragObjects();
_imageWindowOffX = sectionToDrag.HostBasedRectangle.X - CursorClientPosition.X;
_imageWindowOffY = sectionToDrag.HostBasedRectangle.Y - CursorClientPosition.Y;
_imageWindow = CreateDragImageWindow(_draggingSections, data.Length != _draggingSections.Length);
if (DoDragDrop(data, DragDropEffects.Copy | DragDropEffects.Move) == DragDropEffects.None)
{
Point cursorPos = PointToClient(Cursor.Position);
if (_lastDragAction == DragAction.Drop)
{
Rectangle rc = Rectangle.Empty;
foreach (Section s in _draggingSections)
{
if (rc == Rectangle.Empty)
{
rc = s.HostBasedRectangle;
}
else
{
rc = Rectangle.Union(rc, s.HostBasedRectangle);
}
}
foreach (Section s in _draggingSections)
{
if (s.CanDropInVoid && !rc.Contains(cursorPos))
{
s.DroppedInVoid();
}
}
}
}
FinishDropOperation();
}
void ISectionHost.DoDragDropOperation( Section sectionToDrag )
{
_draggingSections = sectionToDrag.GetExpandedDragList();
object[] data = sectionToDrag.GetDragObjects();
_imageWindowOffX = sectionToDrag.HostBasedRectangle.X - CursorClientPosition.X;
_imageWindowOffY = sectionToDrag.HostBasedRectangle.Y - CursorClientPosition.Y;
_imageWindow = CreateDragImageWindow( _draggingSections, data.Length != _draggingSections.Length );
if( DoDragDrop( data, DragDropEffects.Copy | DragDropEffects.Move ) == DragDropEffects.None )
{
Point cursorPos = PointToClient( Cursor.Position );
if( _lastDragAction == DragAction.Drop )
{
Rectangle rc = Rectangle.Empty;
foreach( Section s in _draggingSections )
{
if( rc == Rectangle.Empty )
{
rc = s.HostBasedRectangle;
}
else
{
rc = Rectangle.Union( rc, s.HostBasedRectangle );
}
}
foreach( Section s in _draggingSections )
{
if( s.CanDropInVoid && !rc.Contains( cursorPos ) )
{
s.DroppedInVoid();
}
}
}
}
FinishDropOperation();
}
