/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.gui.prefs;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import com.cburch.logisim.prefs.PrefMonitor;
import com.cburch.logisim.util.StringGetter;
class PrefOptionList implements ActionListener, PropertyChangeListener {
private PrefMonitor<String> pref;
private StringGetter labelStr;
private JLabel label;
private JComboBox combo;
public PrefOptionList(PrefMonitor<String> pref, StringGetter labelStr,
PrefOption[] options) {
this.pref = pref;
this.labelStr = labelStr;
label = new JLabel(labelStr.get() + " ");
combo = new JComboBox();
for (PrefOption opt : options) {
combo.addItem(opt);
}
combo.addActionListener(this);
pref.addPropertyChangeListener(this);
selectOption(pref.get());
}
JPanel createJPanel() {
JPanel ret = new JPanel();
ret.add(label);
ret.add(combo);
return ret;
}
JLabel getJLabel() {
return label;
}
JComboBox getJComboBox() {
return combo;
}
void localeChanged() {
label.setText(labelStr.get() + " ");
}
public void actionPerformed(ActionEvent e) {
PrefOption x = (PrefOption) combo.getSelectedItem();
pref.set((String) x.getValue());
}
public void propertyChange(PropertyChangeEvent event) {
if (pref.isSource(event)) {
selectOption(pref.get());
}
}
private void selectOption(Object value) {
for (int i = combo.getItemCount() - 1; i >= 0; i--) {
PrefOption opt = (PrefOption) combo.getItemAt(i);
if (opt.getValue().equals(value)) {
combo.setSelectedItem(opt);
return;
}
}
combo.setSelectedItem(combo.getItemAt(0));
}
}