/**
   * Shows an insertion line if there is one or more current children.
   *
   * @see LayoutEditPolicy#showLayoutTargetFeedback(Request)
   */
  protected void showLayoutTargetFeedback(Request request) {
    if (getHost().getChildren().size() == 0) return;
    Polyline fb = getLineFeedback();
    Transposer transposer = new Transposer();
    transposer.setEnabled(!isLayoutHorizontal());

    int epIndex = getFeedbackIndexFor(request);
    Rectangle r = null;
    if (epIndex == -1) {
      epIndex = getHost().getChildren().size() - 1;
      EditPart editPart = (EditPart) getHost().getChildren().get(epIndex);
      r = transposer.t(getAbsoluteBounds((GraphicalEditPart) editPart));
    } else {
      EditPart editPart = (EditPart) getHost().getChildren().get(epIndex);
      r = transposer.t(getAbsoluteBounds((GraphicalEditPart) editPart));
      Point p = transposer.t(getLocationFromRequest(request));
      if (p.x > r.x + (r.width / 2)) {
        editPart = (EditPart) getHost().getChildren().get(epIndex);
        r = transposer.t(getAbsoluteBounds((GraphicalEditPart) editPart));
      }
    }
    int x = r.x;
    Point p1 = new Point(x, r.y - 4);
    p1 = transposer.t(p1);
    fb.translateToRelative(p1);
    Point p2 = new Point(x, r.y + r.height + 4);
    p2 = transposer.t(p2);
    fb.translateToRelative(p2);
    fb.setPoint(p1, 0);
    fb.setPoint(p2, 1);
  }
 /**
  * Lazily creates and returns a <code>Polyline</code> Figure for use as feedback.
  *
  * @return a Polyline figure
  */
 protected Polyline getLineFeedback() {
   if (insertionLine == null) {
     insertionLine = new Polyline();
     insertionLine.setLineWidth(2);
     insertionLine.addPoint(new Point(0, 0));
     insertionLine.addPoint(new Point(10, 10));
     addFeedback(insertionLine);
   }
   return insertionLine;
 }
Пример #3
0
  /**
   * Refreshes the visual aspects of this, based upon the model (Wire). It changes the wire color
   * depending on the state of Wire.
   */
  protected void updateSelected() {

    final EditPart source = getSource();
    if (source != null) {

      final int sel = source.getSelected();
      final Polyline line = (Polyline) getFigure();
      if (sel != SELECTED_NONE) {
        line.setLineWidth(2);

      } else {
        line.setLineWidth(1);
      }
    }
  }
Пример #4
0
 /**
  * Returns the bounds which holds all the points in this polyline connection. Returns any
  * previously existing bounds, else calculates by unioning all the children's dimensions.
  *
  * @return the bounds
  */
 public Rectangle getBounds() {
   if (bounds == null) {
     super.getBounds();
     for (int i = 0; i < getChildren().size(); i++) {
       IFigure child = (IFigure) getChildren().get(i);
       bounds.union(child.getBounds());
     }
   }
   return bounds;
 }
Пример #5
0
 public void layout() {
   Rectangle oldBounds = bounds;
   super.layout();
   bounds = null;
   if (!getBounds().contains(oldBounds)) {
     getParent().translateToParent(oldBounds);
     getUpdateManager().addDirtyRegion(getParent(), oldBounds);
   }
   repaint();
   fireFigureMoved();
 }
Пример #6
0
 public void setPoints(PointList points) {
   super.setPoints(points);
   layout(); // update arrows
 }
  static void refreshGrid() {
    if (styleGrid != null) {
      styleGrid.dispose();
      shell.pack();
    }

    styleGrid = new Group(shell, SWT.NONE);
    styleGrid.setText(xAxis.getName() + " vs. " + yAxis.getName());
    styleGrid.setLayout(new GridLayout(xAxis.getCount() + 1, false));
    styleGrid.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, true, true, 1, 1));

    // put blank label in top left corner
    Label label = new Label(styleGrid, SWT.NONE);

    // add x-axis labels
    for (int x = 0; x < xAxis.getCount(); x++) {
      label = new Label(styleGrid, SWT.NONE);
      label.setText(xAxis.getName() + " =\n" + xAxis.getAt(x).getName());
    }

    // iterate over the y-axis style settings
    for (int y = 1; y < yAxis.getCount() + 1; y++) {

      // add y-axis label for this row
      label = new Label(styleGrid, SWT.NONE);
      label.setText(yAxis.getName() + " =\n" + yAxis.getAt(y - 1).getName());

      // iterate over the x-axis style settings
      for (int x = 1; x < xAxis.getCount() + 1; x++) {

        // create a sample shape instance
        Shape shape;
        if (sampleShape == Polyline.class) {
          Polyline poly = new Polyline();
          poly.addPoint(new Point(20, 20));
          poly.addPoint(new Point(50, 80));
          poly.addPoint(new Point(10, 50));
          shape = poly;
        } else {
          try {
            shape = (Shape) sampleShape.getConstructor(null).newInstance(null);
          } catch (Exception e) {
            throw new RuntimeException(
                "Could not find a no args constructor for " + sampleShape.getName());
          }
          shape.setBounds(new Rectangle(0, 0, 100, 75));
        }

        // apply default style
        shape.setBackgroundColor(ColorConstants.orange());
        shape.setLineWidthFloat(defaultLineWidth);
        shape.setAntialias(SWT.ON);

        // apply styles imposed by each axis
        xAxis.applyTo(shape, x - 1);
        yAxis.applyTo(shape, y - 1);

        FigureCanvas figureBox = new FigureCanvas(styleGrid);
        figureBox.setContents(shape);
      }
    }
    shell.pack();
  }