public void drawPrevious() {
if (!_dsi.atStart()) _dsi.retreat();
DataSetElement dse = null;
while (!_dsi.atStart()) {
dse = _dsi.getElement();
if (_filter.isAcceptable(dse)) break;
_dsi.retreat();
}
_timeText.setText(dse.getXString());
for (int i = 0; i < _dse.getDimension(); i++) _dse.setX(i, dse.getX(i + 1));
_pdm.setReferenceObject(_dse);
_canvas.redoNextPaint();
_canvas.repaint();
if (_dsi.atStart()) {
timer.stopAnimation();
return;
}
}
public void drawNext() {
if (_dsi.atEnd()) {
timer.stopAnimation();
}
DataSetElement dse = null;
while (!_dsi.atEnd()) {
dse = _dsi.getElement();
if (_filter.isAcceptable(dse)) break;
_dsi.advance();
}
if (dse == null) return; // no more good elements, probably at end
_timeText.setText(dse.getXString());
for (int i = 0; i < _dse.getDimension(); i++) _dse.setX(i, dse.getX(i + 1));
// System.out.println(_dse);
_pdm.setReferenceObject(_dse);
_canvas.redoNextPaint();
_canvas.repaint();
if (!_dsi.atEnd()) _dsi.advance();
}
public void increaseAnimationSpeed(int increment) {
int delay = (int) timer.getInterval();
if (delay - increment > 0) {
timer.setInterval(delay - increment);
}
}
public PieChartAnimator(RegularTimeSeries[] rts) {
int delay = 500;
timer = new Animator();
timer.setInterval(delay);
timer.addAnimateDisplay(this);
_canvas = setUpPieChart(rts);
_filter = new NaNFilter();
// set up buttons
JButton fasterBtn = new JButton("faster");
JButton slowerBtn = new JButton("slower");
JButton stopBtn = new JButton("#");
JButton forwardBtn = new JButton(">");
JButton reverseBtn = new JButton("<");
fasterBtn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
increaseAnimationSpeed(50);
}
});
slowerBtn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
increaseAnimationSpeed(-50);
}
});
forwardBtn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
goForward = true;
timer.startAnimation();
}
});
stopBtn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
timer.stopAnimation();
}
});
reverseBtn.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
goForward = false;
timer.startAnimation();
}
});
// setup button panel
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(forwardBtn);
buttonPanel.add(stopBtn);
buttonPanel.add(reverseBtn);
buttonPanel.add(fasterBtn);
buttonPanel.add(slowerBtn);
//
JFrame fr = new JFrame();
fr.getContentPane().setLayout(new BorderLayout());
fr.getContentPane().add(buttonPanel, BorderLayout.SOUTH);
fr.getContentPane().add(_canvas, BorderLayout.CENTER);
fr.pack();
fr.setVisible(true);
timer.startAnimation();
}