示例#1
0
  private void resetZoom(Point2D point) {
    if (!isZoomable()) {
      return;
    }

    Navigable navigable = InteractivePanel.getNavigableAt(getDrawable(), point);
    if (navigable == null) {
      return;
    }

    Navigator navigator = navigable.getNavigator();
    navigator.reset();

    repaint();
  }
示例#2
0
    @Override
    public void mouseDragged(MouseEvent e) {
      if (navigable == null) {
        return;
      }

      // Calculate distance that the current view was dragged
      // (screen units)
      Point pos = e.getPoint();
      Navigator navigator = navigable.getNavigator();

      int dx = pos.x - posPrev.x;
      int dy = pos.y - posPrev.y;
      posPrev = pos;

      if (Math.abs(dx) > MIN_DRAG || Math.abs(dy) > MIN_DRAG) {
        PointND<Integer> deltas = new PointND<Integer>(dx, dy);
        navigator.pan(deltas);
        panel.repaint();
      }
    }
示例#3
0
  /**
   * Zooms a navigable object in (positive values) or out (negative values).
   *
   * @param point The location where the zoom was triggered.
   * @param times Number of times the navigable object will be zoomed. Positive values zoom in,
   *     negative values zoom out.
   */
  private void zoom(Point2D point, int times) {
    if (!isZoomable()) {
      return;
    }

    Navigable navigable = InteractivePanel.getNavigableAt(getDrawable(), point);
    if (navigable == null) {
      return;
    }

    Navigator navigator = navigable.getNavigator();
    if (times >= 0) {
      for (int i = 0; i < times; i++) {
        navigator.zoomOut();
      }
    } else {
      for (int i = 0; i < -times; i++) {
        navigator.zoomIn();
      }
    }

    repaint();
  }