示例#1
0
  public MeterFigure() {
    super();
    // TODO, remove this if clip is supported by RAP
    if (SWT.getPlatform().startsWith("rap")) // $NON-NLS-1$
    ramp.setVisible(false);
    setTransparent(false);
    scale.setScaleLineVisible(false);

    ((RoundScale) scale).setStartAngle(180 - SPACE_ANGLE);
    ((RoundScale) scale).setEndAngle(SPACE_ANGLE);
    ramp.setRampWidth(12);
    setLoColor(XYGraphMediaFactory.getInstance().getColor(XYGraphMediaFactory.COLOR_YELLOW));
    setHiColor(XYGraphMediaFactory.getInstance().getColor(XYGraphMediaFactory.COLOR_YELLOW));

    valueLabel = new Label();
    valueLabel.setFont(DEFAULT_LABEL_FONT);
    needle = new Needle();
    needle.setFill(true);
    needle.setOutline(false);

    //	needleCenter = new Ellipse();
    //	needleCenter.setOutline(false);

    setLayoutManager(new XMeterLayout());
    add(ramp, XMeterLayout.RAMP);
    add(scale, XMeterLayout.SCALE);
    add(needle, XMeterLayout.NEEDLE);
    //	add(needleCenter, XMeterLayout.NEEDLE_CENTER);
    add(valueLabel, XMeterLayout.VALUE_LABEL);

    addFigureListener(
        new FigureListener() {
          public void figureMoved(IFigure source) {
            ramp.setDirty(true);
            revalidate();
          }
        });
  }
示例#2
0
    public void layout(IFigure container) {
      Rectangle area = container.getClientArea();
      // calculate a virtual area

      if (scale != null && scale.isDirty())
        M =
            Math.max(
                    FigureUtilities.getTextWidth(
                        scale.format(scale.getRange().getLower()), scale.getFont()),
                    FigureUtilities.getTextWidth(
                        scale.format(scale.getRange().getUpper()), scale.getFont()))
                / 2;

      int h = area.height;
      int w = area.width;
      if (h > HW_RATIO * (w - 2 * M)) h = (int) (HW_RATIO * (w - 2 * M));
      // else if (w > h/HW_RATIO + 2*M)
      //	w = (int) (h/HW_RATIO + 2*M);
      double r = h / (1 - Math.sin(ALPHA) / 2);
      int x = (int) (area.x - r * (1.0 - Math.cos(ALPHA)) + M);
      int y = area.y;

      area = new Rectangle(x, y, (int) (2 * r), (int) (2 * r));
      Point center = area.getCenter();

      if (scale != null) {
        scale.setBounds(area);
      }

      if (ramp != null && ramp.isVisible()) {
        Rectangle rampBounds = area.getCopy();
        ramp.setBounds(
            rampBounds.shrink(
                area.width / 4 - ramp.getRampWidth(), area.height / 4 - ramp.getRampWidth()));
      }

      if (valueLabel != null) {
        Dimension labelSize = valueLabel.getPreferredSize();
        valueLabel.setBounds(
            new Rectangle(
                area.x + area.width / 2 - labelSize.width / 2,
                area.y
                    + area.height / 2
                    - area.height / 4
                    - (scale.getInnerRadius() - area.height / 4) / 2
                    - labelSize.height / 2,
                labelSize.width,
                labelSize.height));
      }

      if (needle != null && scale != null) {
        needlePoints.setPoint(
            new Point(center.x + area.width / 4, center.y - NEEDLE_WIDTH / 2 + 3), 0);
        scale.getScaleTickMarks();
        needlePoints.setPoint(
            new Point(center.x + scale.getInnerRadius() - GAP_BTW_NEEDLE_SCALE, center.y), 1);
        needlePoints.setPoint(
            new Point(center.x + area.width / 4, center.y + NEEDLE_WIDTH / 2 - 3), 2);

        double valuePosition = 360 - scale.getValuePosition(getCoercedValue(), false);
        if (maximum > minimum) {
          if (value > maximum) valuePosition += 8;
          else if (value < minimum) valuePosition -= 8;
        } else {
          if (value > minimum) valuePosition -= 8;
          else if (value < maximum) valuePosition += 8;
        }
        needlePoints.setPoint(
            PointsUtil.rotate(needlePoints.getPoint(0), valuePosition, center), 0);
        needlePoints.setPoint(
            PointsUtil.rotate(needlePoints.getPoint(1), valuePosition, center), 1);
        needlePoints.setPoint(
            PointsUtil.rotate(needlePoints.getPoint(2), valuePosition, center), 2);
        needle.setPoints(needlePoints);
      }

      //			if(needleCenter != null){
      //				needleCenter.setBounds(new Rectangle(center.x - area.width/4,
      //						center.y - area.height/4,
      //						area.width/2, area.height/2));
      //			}

    }