source: src/main/java/genius/gui/deadline/DeadlinePanel.java

package genius.gui.deadline;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerNumberModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import genius.core.DeadlineType;
import genius.core.listener.Listener;

/**
 * panel allowing user to set the deadline.
 * 
 * @author W.Pasman
 *
 */
@SuppressWarnings("serial")
public class DeadlinePanel extends JPanel {
        private final SpinnerNumberModel valuemodel = new SpinnerNumberModel(60, 1,
                        10000, 10);
        private JSpinner spinner = new JSpinner(valuemodel);
        private JComboBox<DeadlineType> combobox = new JComboBox<DeadlineType>(
                        DeadlineType.values());
        private JLabel label = new JLabel("Deadline");
        private DeadlineModel model;

        public DeadlinePanel(final DeadlineModel model) {
                if (model == null)
                        throw new NullPointerException("model");
                this.model = model;
                setLayout(new BorderLayout());
                label.setPreferredSize(new Dimension(120, 10));
                add(label, BorderLayout.WEST);
                add(spinner, BorderLayout.CENTER);
                add(combobox, BorderLayout.EAST);
                setMaximumSize(new Dimension(Short.MAX_VALUE, 30));
                setAlignmentX(Component.RIGHT_ALIGNMENT);

                syncWithModel();

                spinner.addChangeListener(new ChangeListener() {
                        @Override
                        public void stateChanged(ChangeEvent e) {
                                model.setValue((Integer) valuemodel.getValue());
                        }
                });
                combobox.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                                model.setType((DeadlineType) combobox.getSelectedItem());
                        }
                });

                model.addListener(new Listener<DeadlineModel>() {

                        @Override
                        public void notifyChange(DeadlineModel data) {
                                syncWithModel();
                        }

                });
        }

        /**
         * Sync panel with the model.
         */
        private void syncWithModel() {
                spinner.setValue(model.getDeadline().getValue());
                combobox.setSelectedItem(model.getDeadline().getType());
        }

}