public LJ3MDApp() {
tNum.setHorizontalAlignment(JTextField.CENTER);
tTemp.setHorizontalAlignment(JTextField.CENTER);
tRho.setHorizontalAlignment(JTextField.CENTER);
tSpeed.setHorizontalAlignment(JTextField.CENTER);
tAvK.setHorizontalAlignment(JTextField.RIGHT);
tAvU.setHorizontalAlignment(JTextField.RIGHT);
tAvp.setHorizontalAlignment(JTextField.RIGHT);
float[] aveKing = new float[501];
float[] avePot = new float[501];
float[] aveEn = new float[501];
JFrame box = new JFrame();
box.setLayout(new BorderLayout());
box.setSize(1000, 1000);
box.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cpnl = new JPanel(); // create a panel for controls
cpnl.setLayout(new GridLayout(18, 2));
box.add(cpnl, BorderLayout.EAST);
// add controls
cpnl.add(bStart);
bStart.addActionListener(this);
cpnl.add(bReset);
bReset.addActionListener(this);
cpnl.add(new JLabel(" N:"));
tNum.addActionListener(this);
cpnl.add(tNum);
cpnl.add(new JLabel(" Density (\u03c1):"));
tRho.addActionListener(this);
cpnl.add(tRho);
cpnl.add(new JLabel(" Steps/frame:"));
tSpeed.addActionListener(this);
cpnl.add(tSpeed);
cpnl.add(bTstat);
bTstat.addActionListener(this);
cpnl.add(bPot);
bPot.addActionListener(this);
cpnl.add(new JLabel(" < K/N > :"));
tAvK.setEditable(false);
cpnl.add(tAvK);
cpnl.add(new JLabel(" Temperature:"));
tTemp.setEditable(false);
cpnl.add(tTemp);
cpnl.add(new JLabel(" < U/N > :"));
tAvU.setEditable(false);
cpnl.add(tAvU);
cpnl.add(new JLabel(" < pressure > :"));
tAvp.setEditable(false);
cpnl.add(tAvp);
cpnl.add(bRetime);
bRetime.addActionListener(this);
spnl = new JPanel(); // create a panel for status
box.add(spnl, BorderLayout.SOUTH);
lStatus.setFont(new Font("Courier", 0, 12));
spnl.add(lStatus);
canvas = new XYZCanvas();
box.add(canvas, BorderLayout.CENTER);
timer = new Timer(delay, this);
timer.start();
// timer.stop();
box.setVisible(true);
}
public void actionPerformed(ActionEvent e) {
Object src = e.getSource();
if (src == timer) {
for (int i = 0; i < speed; i++) // integrate a few steps
md.vv();
repaint();
return;
}
boolean adjCanvasScale = false;
if (src == bTstat) md.thermostat = !md.thermostat;
if (src == bPot) {
md.ljPotential = !md.ljPotential;
md.clearData();
if (timer.isRunning()) timer.stop();
bStart.setSelected(false);
bStart.setText("Start");
md.init(md.rho);
}
if (src == tTemp || src == bReset) {
double kT = Double.parseDouble(tTemp.getText().trim());
if (kT < 1e-8) {
kT = 1e-8;
tTemp.setText(" " + kT);
}
md.kT = kT;
md.clearData();
}
if (src == tRho || src == bReset) {
double rho = Double.parseDouble(tRho.getText().trim());
if (rho < 1e-3) {
rho = 1e-3;
tRho.setText(" " + rho);
}
if (rho > 1.2) {
rho = 1.2;
tRho.setText(" " + rho);
}
md.setDensity(rho);
md.clearData();
adjCanvasScale = true;
}
if (src == tSpeed || src == bReset) {
speed = Integer.parseInt(tSpeed.getText().trim());
if (speed < 1) {
speed = 1;
tSpeed.setText(" " + speed);
}
}
if (src == bRetime) md.clearData();
if (src == bStart) {
boolean on = bStart.isSelected();
if (on) {
timer.restart();
bStart.setText("Pause");
} else {
timer.stop();
bStart.setText("Resume");
}
}
if (src == tNum) {
int n = Integer.parseInt(tNum.getText().trim());
if (n < 2) {
n = 2;
tNum.setText(" " + n);
}
md.N = n;
md.init(md.rho);
adjCanvasScale = true;
}
if (src == bReset) {
if (timer.isRunning()) timer.stop();
bStart.setSelected(false);
bStart.setText("Start");
md.init(md.rho);
}
canvas.refresh(md.getXWrap(), md.N, true, adjCanvasScale);
repaint();
}