public void Handle(RectangleClickMessage message)
{
var rectangle = message.Rectangle;
if (!_isConnecting)
{
_isConnecting = true;
_sourceRectangle = rectangle;
if (_sourceRectangle.IsConnected)
{
RemoveExistingConnection(_sourceRectangle);
}
StartDrawingLine(_sourceRectangle);
}
else
{
_isConnecting = false;
_destinationRectangle = rectangle;
if (ConnectionNotPossible(rectangle))
{
CancelDrawingLine();
return;
}
if (_destinationRectangle.IsConnected)
{
RemoveExistingConnection(_destinationRectangle);
}
AddConnection(_sourceRectangle, _destinationRectangle, _line);
}
}
public void Rectangle_MouseLeftButtonDown(object sender, RoutedEventArgs e)
{
var message = new RectangleClickMessage()
{
Rectangle = this,
};
_eventAggregator.PublishOnUIThread(message);
}
