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package bjc.utils.gui;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;
import bjc.utils.data.IHolder;
import bjc.utils.gui.layout.HLayout;
/**
* A panel that outputs a value bound to a {@link IHolder}
*
* @author ben
*
*/
public class HolderOutputPanel extends JPanel {
private static final long serialVersionUID = 166573313903782080L;
private Timer updateTimer;
private JLabel value;
private int nDelay;
private IHolder<String> val;
/**
* Create a new display panel, backed by a holder
*
* @param lab
* The label to attach to this field
* @param valueHolder
* The holder to get the value from
* @param nDelay
* The delay in ms between value updates
*/
public HolderOutputPanel(String lab, IHolder<String> valueHolder,
int nDelay) {
this.val = valueHolder;
this.nDelay = nDelay;
setLayout(new HLayout(2));
JLabel label = new JLabel(lab);
value = new JLabel("(stopped)");
updateTimer = new Timer(nDelay, (event) -> {
value.setText(valueHolder.getValue());
});
add(label);
add(value);
}
/**
* Set this panel back to its initial state
*/
public void reset() {
stopUpdating();
value.setText("(stopped)");
updateTimer = new Timer(nDelay, (event) -> {
value.setText(val.getValue());
});
}
/**
* Start updating the contents of the field from the holder
*/
public void startUpdating() {
updateTimer.start();
}
/**
* Stop updating the contents of the field from the holder
*/
public void stopUpdating() {
updateTimer.stop();
value.setText(value.getText() + " (stopped)");
}
}
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