public AddConnectorOperation(ISketchItemDisplay pad, ConnectableBase from, Point p)
{
_from = from;
_pad = pad;
//
// at this point it is not sufficient to consider only the bounds
// in case of a lengthy object, we would like to place that start point close to where
// the user pressed the button!
// hence we should query the from object for a decent start point
//
var start = p;// ConnectorUtilities.ComputeCenter(from.Bounds);
_selector = new ConnectablePairSelector(start, p);
_pad.Canvas.Children.Add(_selector);
_selector.Visibility = Visibility.Visible;
_pad.SetSketchItemEnable(false);
_oldContextMenue = _pad.Canvas.ContextMenu;
_pad.Canvas.MouseMove += HandleMouseMove;
_pad.Canvas.MouseDown += HandleMouseDown;
_pad.Canvas.KeyDown += HandleKeyDown;
_pad.TakeSnapshot();
}
public RewireConnectorOperation(ISketchItemDisplay pad, ConnectorModel model, Point p)
{
_connector = model;
_pad = pad;
IBoundedSketchItemModel ending = model.To;
if (ending == null)
{
ending = model.From;
}
var start = ConnectorUtilities.ComputeCenter(ending.Bounds);
_selector = new ConnectablePairSelector(start, p);
_pad.Canvas.Children.Add(_selector);
_selector.Visibility = Visibility.Visible;
foreach (var ch in _pad.Canvas.Children.OfType <ISketchItemUI>())
{
ch.Disable();
}
_pad.Canvas.MouseMove += HandleMouseMove;
_pad.Canvas.MouseDown += HandleMouseDown;
_pad.Canvas.KeyDown += HandleKeyDown;
}