public DesignSurface()
{
this.SelectionMode = SelectionMode.Multiple;
MouseLeftButtonDown += OnMouseLeftButtonDown;
SelectionChanged += OnSelectionChanged;
DesignAidsProvider = new DesignAidsProvider(this);
SelectionHandler = new SelectionHandler(this);
CommandHandler = new DesignSurfaceCommandHandler(this, this);
}
public DesignSurface()
{
DefaultStyleKey = typeof(DesignSurface);
DesignAidsProvider = new DesignAidsProvider(this);
SelectionHandler = new SelectionHandler(this);
PopupsDictionary = new Dictionary<IAdorner, Popup>();
Children = new CanvasItemCollection();
KeyDown += OnKeyDown;
KeyUp += OnKeyUp;
SelectionChanged += OnSelectionChanged;
}