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JCalendar is a Java date chooser bean for graphically picking a date. JCalendar is composed of several other Java beans, a JDayChooser, a JMonthChooser and a JYearChooser. All these beans have a locale property, provide several icons (Color 16x16, Color 32x32, Mono 16x16 and Mono 32x32) and their own locale property editor. So they can easily be used in GUI builders. Also part of the package is a JDateChooser, a bean composed of an IDateEditor (for direct date editing) and a button for opening a JCalendar for selecting the date.

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/*
 *  DateChooserPanel.java  - A panel to demo several JDateChooser configurations.
 *  Copyright (C) 2006 Kai Toedter
 *  [email protected]
 *  www.toedter.com
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package com.toedter.calendar.demo;

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Date;
import java.util.Locale;

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

import com.toedter.calendar.JDateChooser;
import com.toedter.calendar.JSpinnerDateEditor;

/**
 * A demonstration panel including several JDateChoosers.
 * 
 * @author Kai Toedter
 * @version $LastChangedRevision: 153 $
 * @version $LastChangedDate: 2011-06-09 16:49:22 +0200 (Do, 09 Jun 2011) $
 */
public class DateChooserPanel extends JPanel implements PropertyChangeListener {
	private static final long serialVersionUID = -1282280858252793253L;
	private final JComponent[] components;

	public DateChooserPanel() {
		setName("JDateChooser");

		GridBagLayout gridbag = new GridBagLayout();
		GridBagConstraints c = new GridBagConstraints();
		c.fill = GridBagConstraints.BOTH;

		setLayout(gridbag);

		components = new JComponent[6];
		components[0] = new JDateChooser();
		components[1] = new JDateChooser();
		((JDateChooser) components[1]).getJCalendar().getDayChooser()
				.addDateEvaluator(new BirthdayEvaluator());
		((JDateChooser) components[1]).getJCalendar().getDayChooser()
				.addDateEvaluator(new TestDateEvaluator());
		((JDateChooser) components[1]).getJCalendar().setTodayButtonVisible(
				true);
		((JDateChooser) components[1]).getJCalendar().setNullDateButtonVisible(
				true);

		components[2] = new JDateChooser(new Date());
		components[3] = new JDateChooser(null, null, null,
				new JSpinnerDateEditor());
		components[4] = new JDateChooser("yyyy/MM/dd", "####/##/##", '_');
		components[5] = new DemoTable();

		addEntry("Default", components[0], gridbag);
		addEntry("Default (with addons)", components[1], gridbag);
		addEntry("Default with date set", components[2], gridbag);
		addEntry("Spinner Editor", components[3], gridbag);
		addEntry("Explicite date pattern and mask", components[4], gridbag);
		addEntry("Table with date editors", components[5], gridbag);
	}

	private void addEntry(String text, JComponent component, GridBagLayout grid) {
		JLabel label = new JLabel(text + ": ", null, JLabel.RIGHT);
		GridBagConstraints c = new GridBagConstraints();
		c.weightx = 1.0;
		c.fill = GridBagConstraints.BOTH;
		grid.setConstraints(label, c);
		add(label);
		c.gridwidth = GridBagConstraints.REMAINDER;
		grid.setConstraints(component, c);
		add(component);
		JPanel blankLine = new JPanel() {
			private static final long serialVersionUID = 4514530330521503732L;

			public Dimension getPreferredSize() {
				return new Dimension(10, 3);
			}
		};
		grid.setConstraints(blankLine, c);
		add(blankLine);
	}

	/**
	 * Gets the date format string.
	 * 
	 * @return Returns the dateFormatString.
	 */
	public String getDateFormatString() {
		return ((JDateChooser) components[1]).getDateFormatString();
	}

	/**
	 * Sets the date format string. E.g "MMMMM d, yyyy" will result in "July 21,
	 * 2004" if this is the selected date and locale is English.
	 * 
	 * @param dfString
	 *            The dateFormatString to set.
	 */
	public void setDateFormatString(String dfString) {
		for (int i = 0; i < 4; i++) {
			((JDateChooser) components[i]).setDateFormatString(dfString);
		}
	}

	/**
	 * Returns the date. If the JDateChooser is started with an empty date and
	 * no date is set by the user, null is returned.
	 * 
	 * @return the current date
	 */
	public Date getDate() {
		return ((JDateChooser) components[1]).getDate();
	}

	/**
	 * Sets the date. Fires the property change "date" if date != null.
	 * 
	 * @param date
	 *            the new date.
	 */
	public void setDate(Date date) {
		for (int i = 0; i < 4; i++) {
			((JDateChooser) components[i]).setDate(date);
		}
	}

	public void propertyChange(PropertyChangeEvent evt) {
		if (evt.getPropertyName().equals("date")) {
			setDate((Date) evt.getNewValue());
		}
	}

	/**
	 * Returns the locale of the first JDateChooser.
	 */
	public Locale getLocale() {
		return ((JDateChooser) components[0]).getLocale();
	}

	/**
	 * Sets the locale of the first 4 JDateChoosers.
	 */
	public void setLocale(Locale locale) {
		for (int i = 0; i < 5; i++) {
			components[i].setLocale(locale);
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.awt.Component#isEnabled()
	 */
	public boolean isEnabled() {
		return ((JDateChooser) components[0]).isEnabled();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.swing.JComponent#setEnabled(boolean)
	 */
	public void setEnabled(boolean enabled) {
		for (int i = 0; i < 5; i++) {
			components[i].setEnabled(enabled);
		}
	}

	public Date getMinSelectableDate() {
		return ((JDateChooser) components[0]).getMinSelectableDate();
	}

	public void setMinSelectableDate(Date date) {
		for (int i = 0; i < 4; i++) {
			((JDateChooser) components[i]).setMinSelectableDate(date);
		}
	}

	public Date getMaxSelectableDate() {
		return ((JDateChooser) components[0]).getMaxSelectableDate();
	}

	public void setMaxSelectableDate(Date date) {
		for (int i = 0; i < 4; i++) {
			((JDateChooser) components[i]).setMaxSelectableDate(date);
		}
	}
}