@Override
public void draw(
Graphics2D g2,
XYPlot plot,
Rectangle2D dataArea,
ValueAxis domainAxis,
ValueAxis rangeAxis,
int rendererIndex,
PlotRenderingInfo info) {
Rectangle2D box = chartPanel.getScreenDataArea();
float sx = (float) plot.getDomainAxis().valueToJava2D(x, box, plot.getDomainAxisEdge());
float maxXLim = (float) box.getWidth() - g2.getFontMetrics().stringWidth(text);
if (sx > maxXLim) {
sx = maxXLim;
}
if (sx < box.getMinX()) {
sx = (float) box.getMinX();
}
float sy =
(float)
plot.getRangeAxis()
.valueToJava2D(y, chartPanel.getScreenDataArea(), plot.getRangeAxisEdge());
g2.setTransform(new AffineTransform());
g2.setColor(color);
g2.setFont(font);
g2.drawString(text, sx, sy);
}
@Override
public void mouseDragged(MouseEvent mouseEvent) {
if (!mouseEvent.isControlDown()) {
return;
}
if (oldx > -1 && oldy > -1) {
int xdif = mouseEvent.getX() - oldx;
int ydif = mouseEvent.getY() - oldy;
final Rectangle2D scaledDataArea = chartPanel.getScreenDataArea();
ValueAxis[] domAxes = getPlotAxis(chartPanel.getChart(), !axesSwaped);
if (domAxes != null) {
double[] xDelta = new double[domAxes.length];
for (int i = 0; i < domAxes.length; i++) {
xDelta[i] = xdif * domAxes[i].getRange().getLength() / (scaledDataArea.getWidth());
}
for (int i = 0; i < domAxes.length; i++) {
domAxes[i].setRange(
domAxes[i].getLowerBound() - xDelta[i], domAxes[i].getUpperBound() - xDelta[i]);
}
}
ValueAxis[] rngAxes = getPlotAxis(chartPanel.getChart(), axesSwaped);
if (rngAxes != null) {
double[] yDelta = new double[rngAxes.length];
for (int i = 0; i < rngAxes.length; i++) {
yDelta[i] = ydif * rngAxes[i].getRange().getLength() / (scaledDataArea.getHeight());
}
if (!onlyXShift) {
for (int i = 0; i < rngAxes.length; i++) {
rngAxes[i].setRange(
rngAxes[i].getLowerBound() + yDelta[i], rngAxes[i].getUpperBound() + yDelta[i]);
}
}
}
}
oldx = mouseEvent.getX();
oldy = mouseEvent.getY();
}
/** Pan / Shifts a plot if the arrow keys are pressed. */
public void keyPressed(KeyEvent e) {
if (!plotSupported) {
return;
}
int keyCode = e.getKeyCode();
// we're only interested in arrows (code 37,38,39,40)
if ((keyCode < 37) || (keyCode > 40)) {
return;
}
// The axes we're gonna shift
ValueAxis[] axes = null;
boolean domainShift = false; // used for PAN_FIXED
// Calculations for the domain axis
if ((keyCode == KeyEvent.VK_LEFT) || (keyCode == KeyEvent.VK_RIGHT)) {
axes = getPlotAxis(chartPanel.getChart(), !axesSwaped);
domainShift = true;
}
// Calculations for the range axis
else {
axes = getPlotAxis(chartPanel.getChart(), axesSwaped);
}
// Delta is the amount we'll shift in axes units.
double[] delta = new double[axes.length];
// Let's calculate 'delta', the amount by which we'll shift the plot
for (int i = 0; i < axes.length; i++) {
switch (shiftType) {
case SHIFT_PERCENTUAL:
delta[i] = (axes[i].getUpperBound() - axes[i].getLowerBound()) / 100.0;
break;
case SHIFT_FIXED:
delta[i] = (domainShift ? fixedDomainShiftUnits : fixedRangeShiftUnits);
break;
case SHIFT_PIXEL: // also the default
default:
// Let's find out what's the range for 1 pixel.
final Rectangle2D scaledDataArea = chartPanel.getScreenDataArea();
delta[i] = axes[i].getRange().getLength() / (scaledDataArea.getWidth());
break;
}
}
// Shift modifier multiplies delta by 10
if (e.isShiftDown()) {
for (int i = 0; i < delta.length; i++) {
delta[i] *= 10;
}
}
for (int i = 0; i < axes.length; i++) {
switch (keyCode) {
case KeyEvent.VK_LEFT:
case KeyEvent.VK_DOWN:
axes[i].setRange(axes[i].getLowerBound() - delta[i], axes[i].getUpperBound() - delta[i]);
break;
case KeyEvent.VK_UP:
case KeyEvent.VK_RIGHT:
axes[i].setRange(axes[i].getLowerBound() + delta[i], axes[i].getUpperBound() + delta[i]);
break;
}
}
}