java-org.hwo/src/org/hwo/datetime/JTimeOfDay.java

package org.hwo.datetime;

import javax.swing.JPanel;

import java.awt.GridBagLayout;

import javax.swing.JSpinner;

import java.awt.GridBagConstraints;
import java.awt.Insets;
import java.util.LinkedList;

import javax.swing.JLabel;
import javax.swing.SpinnerNumberModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class JTimeOfDay extends JPanel {

	private TimeOfDay timeOfDay;
	private LinkedList<ChangeListener> changeListeners;
	private JSpinner spHours;
	private JSpinner spMinutes;
	private JSpinner spSeconds;
	private JLabel lColon2;
	
	private boolean hideSeconds;
	 
	
	public JTimeOfDay() {
		GridBagLayout gridBagLayout = new GridBagLayout();
		gridBagLayout.columnWidths = new int[]{0, 0, 0, 0, 0, 0};
		gridBagLayout.rowHeights = new int[]{0, 0};
		gridBagLayout.columnWeights = new double[]{1.0, 0.0, 1.0, 0.0, 1.0, Double.MIN_VALUE};
		gridBagLayout.rowWeights = new double[]{1.0, Double.MIN_VALUE};
		setLayout(gridBagLayout);
		
		spHours = new JSpinner();
		spHours.addChangeListener(new ChangeListener() {
			public void stateChanged(ChangeEvent e) {
				timeOfDay.setHours((Integer)spHours.getValue());
				fireChange();
			}
		});
		spHours.setModel(new SpinnerNumberModel(0, 0, 23, 1));
		GridBagConstraints gbc_spHours = new GridBagConstraints();
		gbc_spHours.fill = GridBagConstraints.HORIZONTAL;
		gbc_spHours.insets = new Insets(0, 0, 0, 5);
		gbc_spHours.gridx = 0;
		gbc_spHours.gridy = 0;
		add(spHours, gbc_spHours);
		
		JLabel lblNewLabel = new JLabel(":");
		GridBagConstraints gbc_lblNewLabel = new GridBagConstraints();
		gbc_lblNewLabel.insets = new Insets(0, 0, 0, 5);
		gbc_lblNewLabel.gridx = 1;
		gbc_lblNewLabel.gridy = 0;
		add(lblNewLabel, gbc_lblNewLabel);
		
		spMinutes = new JSpinner();
		spMinutes.addChangeListener(new ChangeListener() {
			public void stateChanged(ChangeEvent e) {
				timeOfDay.setMinutes((Integer)spMinutes.getValue());
				fireChange();
			}
		});
		spMinutes.setModel(new SpinnerNumberModel(0, 0, 59, 1));
		GridBagConstraints gbc_spMinutes = new GridBagConstraints();
		gbc_spMinutes.fill = GridBagConstraints.HORIZONTAL;
		gbc_spMinutes.insets = new Insets(0, 0, 0, 5);
		gbc_spMinutes.gridx = 2;
		gbc_spMinutes.gridy = 0;
		add(spMinutes, gbc_spMinutes);
		
		lColon2 = new JLabel(":");
		GridBagConstraints gbc_lColon2 = new GridBagConstraints();
		gbc_lColon2.insets = new Insets(0, 0, 0, 5);
		gbc_lColon2.gridx = 3;
		gbc_lColon2.gridy = 0;
		add(lColon2, gbc_lColon2);
		
		spSeconds = new JSpinner();
		spSeconds.addChangeListener(new ChangeListener() {
			public void stateChanged(ChangeEvent e) {
				timeOfDay.setSeconds((Integer)spSeconds.getValue());
				fireChange();
			}
		});
		spSeconds.setModel(new SpinnerNumberModel(0, 0, 59, 1));
		GridBagConstraints gbc_spSeconds = new GridBagConstraints();
		gbc_spSeconds.fill = GridBagConstraints.HORIZONTAL;
		gbc_spSeconds.gridx = 4;
		gbc_spSeconds.gridy = 0;
		add(spSeconds, gbc_spSeconds);
		
		initialize();
	}
	
	void initialize()
	{
		setSecondsHidden(false);
		
		changeListeners = new LinkedList<ChangeListener>();
		timeOfDay = new TimeOfDay();
	}
	
	public void addChangeListener(ChangeListener changeListener)
	{
		changeListeners.add(changeListener);
	}
	public void removeChangeListener(ChangeListener changeListener)
	{
		changeListeners.remove(changeListener);
	}

	public Boolean getSecondsHidden()
	{
		return this.hideSeconds;
	}

	public void setSecondsHidden(Boolean hideSeconds)
	{
		this.hideSeconds = hideSeconds;
		if (hideSeconds)
		{
			lColon2.setVisible(false);
			spSeconds.setVisible(false);
			spSeconds.setValue(0);
		} else
		{
			lColon2.setVisible(true);
			spSeconds.setVisible(true);
		}
		this.validate();
	}
	
	void fireChange()
	{
		for (ChangeListener l:changeListeners)
			l.stateChanged(new ChangeEvent(this));
	}
	
	void updateView()
	{
		spHours.setValue(timeOfDay.getHours());
		spMinutes.setValue(timeOfDay.getMinutes());
		spSeconds.setValue(timeOfDay.getSeonds());
	}

	public TimeOfDay getTimeOfDay()
	{
		return timeOfDay;
	}
	
	public void setTimeOfDay(TimeOfDay timeOfDay)
	{
		this.timeOfDay = timeOfDay;
		updateView();
	}
	
	
}