source: src/main/java/genius/gui/panels/CheckboxPanel.java

package genius.gui.panels;

import java.awt.BorderLayout;
import java.awt.Checkbox;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JLabel;
import javax.swing.JPanel;

import genius.core.listener.Listener;

/**
 * Panel showing a checkbox with a title and value. This panel supports a
 * BooleanModel (you can't with the default {@link Checkbox}).
 */
@SuppressWarnings("serial")
public class CheckboxPanel extends JPanel {

        private JLabel label;
        private Checkbox box;
        private BooleanModel model;

        /**
         * 
         * @param text
         *            the text for the label
         * @param boolModel
         *            the boolean model
         */
        public CheckboxPanel(final String text, final BooleanModel boolModel) {
                this.model = boolModel;

                setLayout(new BorderLayout());
                label = new JLabel(text);
                box = new Checkbox("", boolModel.getValue());
                enable1();

                // connect the box to the model,
                box.addItemListener(new ItemListener() {

                        @Override
                        public void itemStateChanged(ItemEvent e) {
                                if (box.getState() != model.getValue()) {
                                        model.setValue(box.getState());
                                        enable1();
                                }
                        }
                });

                // and the model to the box
                model.addListener(new Listener<Boolean>() {

                        @Override
                        public void notifyChange(Boolean data) {
                                // FIXME invokeLater
                                box.setState(data);
                                enable1();
                        }
                });

                add(box, BorderLayout.WEST);
                add(label, BorderLayout.CENTER);
        }

        /**
         * Update enabled-ness of panel. Just calling enable() doesn nothing?
         */
        private void enable1() {
                boolean enabled = !model.isLocked();
                box.setEnabled(enabled);
                label.setEnabled(enabled);
        }

}