public GaugeFigure() {
super();
transparent = true;
scale.setScaleLineVisible(false);
scale.setTickLabelSide(LabelSide.Secondary);
ramp.setRampWidth(10);
valueLabel = new Label();
valueLabel.setFont(DEFAULT_LABEL_FONT);
needle = new Needle();
needle.setFill(true);
needle.setOutline(false);
needleCenter = new NeedleCenter();
needleCenter.setOutline(false);
setLayoutManager(new GaugeLayout());
add(ramp, GaugeLayout.RAMP);
add(scale, GaugeLayout.SCALE);
add(valueLabel, GaugeLayout.VALUE_LABEL);
add(needle, GaugeLayout.NEEDLE);
add(needleCenter, GaugeLayout.NEEDLE_CENTER);
addFigureListener(
new FigureListener() {
public void figureMoved(IFigure source) {
ramp.setDirty(true);
revalidate();
}
});
}
public void layout(IFigure container) {
Rectangle area = container.getClientArea();
area.width = Math.min(area.width, area.height);
area.height = area.width;
area.shrink(BORDER_WIDTH, BORDER_WIDTH);
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, area.height / 4));
}
if (valueLabel != null) {
Dimension labelSize = valueLabel.getPreferredSize();
valueLabel.setBounds(
new Rectangle(
area.x + area.width / 2 - labelSize.width / 2,
area.y + area.height * 7 / 8 - labelSize.height / 2,
labelSize.width,
labelSize.height));
}
if (needle != null && scale != null) {
needlePoints.setPoint(new Point(center.x, center.y - NeedleCenter.DIAMETER / 2 + 3), 0);
scale.getScaleTickMarks();
needlePoints.setPoint(
new Point(
center.x
+ area.width / 2
- RoundScaleTickMarks.MAJOR_TICK_LENGTH
- GAP_BTW_NEEDLE_SCALE,
center.y),
1);
needlePoints.setPoint(new Point(center.x, center.y + NeedleCenter.DIAMETER / 2 - 3), 2);
double valuePosition = 360 - scale.getValuePosition(getCoercedValue(), false);
if (maximum > minimum) {
if (value > maximum) valuePosition += 10;
else if (value < minimum) valuePosition -= 10;
} else {
if (value > minimum) valuePosition -= 10;
else if (value < maximum) valuePosition += 10;
}
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 - NeedleCenter.DIAMETER / 2,
center.y - NeedleCenter.DIAMETER / 2,
NeedleCenter.DIAMETER,
NeedleCenter.DIAMETER));
}
}