package main;
import javax.swing.JComponent;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.EventListenerList;
class Parameter extends JComponent{
private int value;
private String name;
private ChangeEvent changeEvent = null;
private EventListenerList listenerList = new EventListenerList();
private JModParameterObject jmpo = null;
Parameter(int newValue, String newName) {
value = newValue;
name = newName;
}
public void addChangeListener(ChangeListener cl) {
listenerList.add(ChangeListener.class, cl);
}
public void removeChangeListener(ChangeListener cl) {
listenerList.remove(ChangeListener.class, cl);
}
private void fireChangeEvent() {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length-2; i>=0; i-=2) {
if (listeners[i] == ChangeListener.class) {
// Lazily create the event:
if (changeEvent == null)
changeEvent = new ChangeEvent(this);
((ChangeListener)listeners[i+1]).stateChanged(changeEvent);
}
}
}
public void setKnob(JModParameterObject new_jmpo) {
jmpo = new_jmpo;
jmpo.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
int val = (int)((JModParameterObject) e.getSource()).getValue();
setValue(val);
}
});
}
// Getters
public int getValue() {
return value;
}
public String getName() {
return name;
}
// Setters
public void setValue(int newValue) {
value = newValue;
fireChangeEvent();
}
public void setValueWithoutFireStarter(int newValue) {
value = newValue;
}
public void setName(String newName) {
name = newName;
}
}