/**
   * Connects the figure to the new target. If there is no new target the connection reverts to its
   * original one.
   */
  public void invokeEnd(int x, int y, int anchorX, int anchorY, DrawingView view) {
    Connector target = findConnectionTarget(x, y, view.drawing());
    if (target == null) {
      target = fOriginalTarget;
    }

    setPoint(x, y);
    connect(target);
    getConnection().updateConnection();

    Connector oldConnector =
        ((ChangeConnectionHandle.UndoActivity) getUndoActivity()).getOldConnector();
    // there has been no change so there is nothing to undo
    if ((oldConnector == null)
        || (target() == null)
        || (oldConnector.owner() == target().owner())) {
      setUndoActivity(null);
    } else {
      getUndoActivity().setAffectedFigures(new SingleFigureEnumerator(getConnection()));
    }

    if (getTargetFigure() != null) {
      getTargetFigure().connectorVisibility(false);
      setTargetFigure(null);
    }
  }
  /**
   * Performs a layout of the connection. This is called when the connection itself changes. By
   * default the start and end points of the connection are recalculated.
   */
  public void layoutConnection() {
    if (startConnector != null) {
      Point start = startConnector.findStart(this);
      if (start != null) {
        startPoint(start.x, start.y);
      }
    }

    if (endConnector != null) {
      Point end = endConnector.findEnd(this);
      if (end != null) {
        endPoint(end.x, end.y);
      }
    }

    clearShapeCache();
  }
Пример #3
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  /**
   * @see CH.ifa.draw.standard.AbstractConnector#findPoint(CH.ifa.draw.framework.ConnectionFigure)
   */
  public Point findEnd(ConnectionFigure connection) {
    if (connection instanceof FlowConnection) {
      // Trying to establish a flow connection; forward to the socket's flow connector
      return socketConnector.findEnd(connection);
    }

    return super.findEnd(connection);
  }
  /** Finds a new target of the connection. */
  public void invokeStep(int x, int y, int anchorX, int anchorY, DrawingView view) {
    Point p = new Point(x, y);
    Figure f = findConnectableFigure(x, y, view.drawing());
    // track the figure containing the mouse
    if (f != getTargetFigure()) {
      if (getTargetFigure() != null) {
        getTargetFigure().connectorVisibility(false);
      }
      setTargetFigure(f);
      if (getTargetFigure() != null) {
        getTargetFigure().connectorVisibility(true);
      }
    }

    Connector target = findConnectionTarget(p.x, p.y, view.drawing());
    if (target != null) {
      p = Geom.center(target.displayBox());
    }
    setPoint(p.x, p.y);
  }
 /**
  * Gets the end figure of the connection.
  *
  * @return The end figure or null if not connected
  * @see CH.ifa.draw.framework.ConnectionFigure#endFigure()
  */
 public Figure endFigure() {
   if (endConnector != null) {
     return endConnector.owner();
   }
   return null;
 }
 /**
  * Gets the start figure of the connection.
  *
  * @return The start figure or null if not connected
  * @see CH.ifa.draw.framework.ConnectionFigure#startFigure()
  */
 public Figure startFigure() {
   if (startConnector != null) {
     return startConnector.owner();
   }
   return null;
 }