public JPanel createDemo() {
model = new DefaultChartModel();
demoPanel = new JPanel();
Axis xAxis = new CategoryAxis<Country>(countries);
xAxis.setLabel("Countries");
Axis yAxis = new Axis(new NumericRange(0, 25));
yAxis.setLabel("Numbers");
chart = new Chart();
chart.setXAxis(xAxis);
chart.setYAxis(yAxis);
Font titleFont = UIManager.getFont("Label.font").deriveFont(Font.BOLD, 14f);
chart.setTitle(
new AutoPositionedLabel("Chart with Categorical X Values", Color.blue, titleFont));
chart.setVerticalGridLinesVisible(false);
chart.setShadowVisible(true);
model
.addPoint(usa, 22)
.addPoint(uk, 18)
.addPoint(france, 13.5)
.addPoint(germany, 12)
.addPoint(russia, 8)
.addPoint(china, 7);
Color green = new Color(0, 170, 0);
ChartStyle style = new ChartStyle(green, true, true);
style.setLineWidth(6);
style.setPointSize(20);
chart.addModel(model, style).setPointRenderer(new SphericalPointRenderer());
ChartStyle redHighlightStyle =
new ChartStyle(new Color(200, 0, 0), PointShape.DISC, 20).withPointsAndLines();
redHighlightStyle.setLineWidth(6);
redHighlightStyle.setLineColor(green);
chart.setHighlightStyle(redHighlight, redHighlightStyle);
demoPanel.setLayout(new BorderLayout());
demoPanel.add(chart, BorderLayout.CENTER);
chart.addMouseMotionListener(
new MouseMotionListener() {
// Allow the user to drag _points in the vertical direction
public void mouseDragged(MouseEvent e) {
rollover(e);
if (highlighted != null) {
Point p = e.getPoint();
Point2D userPoint = chart.calculateUserPoint(p);
if (userPoint != null) {
highlighted.setY(new RealPosition(userPoint.getY()));
}
chart.repaint();
}
}
// Add a rollover effect
public void mouseMoved(MouseEvent e) {
rollover(e);
}
private void rollover(MouseEvent e) {
Point p = e.getPoint();
PointSelection selection = chart.nearestPoint(p, model);
if (highlighted != null) {
highlighted.setHighlight(null);
}
Chartable selected = selection.getSelected();
Point2D selectedCoords =
new Point2D.Double(selected.getX().position(), selected.getY().position());
Point dp = chart.calculatePixelPoint(selectedCoords);
// Only activate the rollover effect when within 50 pixels of a point
if (p.distance(dp) < 50) {
highlighted = (ChartPoint) selection.getSelected();
highlighted.setHighlight(redHighlight);
ChartCategory<?> x = (ChartCategory<?>) selected.getX();
chart.setToolTipText(
String.format("%s : %.1f", x.getName(), selected.getY().position()));
} else {
chart.setToolTipText(null);
}
chart.repaint();
}
});
chart.addMouseListener(
new MouseAdapter() {
@Override
public void mouseExited(MouseEvent e) {
if (highlighted != null) {
highlighted.setHighlight(null);
chart.repaint();
}
}
});
demoPanel.setPreferredSize(new Dimension(500, 500));
return demoPanel;
}
public Component getDemoPanel() {
if (demoPanel == null) {
chart = new Chart();
sineModel = createSineModel();
cosModel = createCosineModel();
sinePreferencePanel = new ChartPreferencePanel(chart, sineModel);
cosinePreferencePanel = new ChartPreferencePanel(chart, cosModel);
controlPanel = new ControlPanel();
demoPanel = new JPanel();
NumericRange yRange = new NumericRange(0, 50);
NumericRange yRightRange = new NumericRange(-1, 1);
Range<?> xRange = new NumericRange(0, 360);
final Axis xAxis = new Axis(xRange);
final Axis yAxis = new Axis(yRange);
final Axis yRightAxis = new Axis(yRightRange);
yAxis.setPlacement(AxisPlacement.LEADING);
yRightAxis.setPlacement(AxisPlacement.TRAILING);
yRightAxis.setLabel(new AutoPositionedLabel("Cosine Wave"));
xAxis.setLabel(new AutoPositionedLabel("Angle (Degrees)"));
yAxis.setLabel(new AutoPositionedLabel("Modified Sine Wave"));
chart.setHorizontalMinorGridLinesVisible(true);
chart.setVerticalMinorGridLinesVisible(true);
chart.setMinorGridColor(Color.lightGray);
Stroke dashes =
new BasicStroke(
1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 1f, new float[] {1f, 2f}, 0f);
chart.setHorizontalMinorGridStroke(dashes);
chart.setVerticalMinorGridStroke(dashes);
chart.setXAxis(xAxis);
chart.setYAxis(yAxis);
chart.addYAxis(yRightAxis);
chart.setShadowVisible(true);
ChartStyle sineStyle = new ChartStyle(Color.green, PointShape.BOX, Color.green);
// sineStyle.setPointSize(1);
chart.addModel(sineModel, sineStyle);
sinePreferencePanel.setPointSize(5);
sinePreferencePanel.setPointShape(PointShape.BOX);
sinePreferencePanel.setPointColors(initialSineColor);
sinePreferencePanel.setLineWidth(1);
sinePreferencePanel.setLineColors(initialSineColor);
sinePreferencePanel.setUsingLines(true);
sinePreferencePanel.setUsingPoints(false);
chart.addModel(cosModel, yRightAxis);
ChartStyle cosStyle = new ChartStyle(Color.red, PointShape.DISC, Color.red);
chart.setStyle(cosModel, cosStyle);
cosinePreferencePanel.setPointSize(5);
cosinePreferencePanel.setPointShape(PointShape.DISC);
cosinePreferencePanel.setPointColors(initialCosineColor);
cosinePreferencePanel.setLineWidth(1);
cosinePreferencePanel.setLineColors(initialCosineColor);
cosinePreferencePanel.setUsingLines(true);
cosinePreferencePanel.setUsingPoints(false);
// chart.setPanelBackground(new GradientPaint(0,0,Color.white, 800,
// 800, Color.gray));
RubberBandZoomer rubberBand = new RubberBandZoomer(chart);
chart.addDrawable(rubberBand);
chart.addMouseListener(rubberBand);
chart.addMouseMotionListener(rubberBand);
rubberBand.addZoomListener(
new ZoomListener() {
public void zoomChanged(ChartSelectionEvent event) {
if (event instanceof RectangleSelectionEvent) {
Range<?> currentXRange = chart.getXAxis().getOutputRange();
Range<?> currentYRange = chart.getYAxis().getOutputRange();
ZoomFrame frame = new ZoomFrame(currentXRange, currentYRange);
zoomStack.push(frame);
Rectangle selection = (Rectangle) event.getLocation();
Point topLeft = selection.getLocation();
Point bottomRight =
new Point(topLeft.x + selection.width, topLeft.y + selection.height);
assert bottomRight.x >= topLeft.x;
Point2D rp1 = chart.calculateUserPoint(topLeft);
Point2D rp2 = chart.calculateUserPoint(bottomRight);
if (rp1 != null && rp2 != null) {
assert rp2.getX() >= rp1.getX();
Range<?> xRange = new NumericRange(rp1.getX(), rp2.getX());
assert rp1.getY() >= rp2.getY();
Range<?> yRange = new NumericRange(rp2.getY(), rp1.getY());
xAxis.setRange(xRange);
yAxis.setRange(yRange);
}
} else if (event instanceof PointSelectionEvent) {
if (zoomStack.size() > 0) {
ZoomFrame frame = zoomStack.pop();
Range<?> xRange = frame.getXRange();
Range<?> yRange = frame.getYRange();
xAxis.setRange(xRange);
yAxis.setRange(yRange);
}
}
}
});
demoPanel.setPreferredSize(new Dimension(600, 500));
demoPanel.setLayout(new BorderLayout());
demoPanel.add(chart, BorderLayout.CENTER);
demoPanel.add(controlPanel, BorderLayout.SOUTH);
}
return demoPanel;
}
