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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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/*
 *  Copyright (C) 2004 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.components;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Paint;

import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.Border;


/**
 * A simple JPanel with a border and a title
 *
 * @author Kai Toedter
 * @version $LastChangedRevision: 139 $
 * @version $LastChangedDate: 2011-06-04 19:50:51 +0200 (Sa, 04 Jun 2011) $
 */
public class JTitlePanel extends JPanel {
	private static final long serialVersionUID = 9104873267039717087L;
	protected JPanel northPanel;
    protected JLabel label;
    
    /**
     * Constructs a titled panel.
     *
     * @param title the title
     * @param content the JComponent that contains the content
     * @param outerBorder the outer border
     */
    public JTitlePanel(String title, Icon icon, JComponent content, Border outerBorder) {
        setLayout(new BorderLayout());

        label = new JLabel(title, icon, JLabel.LEADING);
        label.setForeground(Color.WHITE);

        GradientPanel titlePanel = new GradientPanel(Color.BLACK);
        titlePanel.setLayout(new BorderLayout());
        titlePanel.add(label, BorderLayout.WEST);
        int borderOffset = 2;
        if(icon == null) {
        	borderOffset += 1;
        }
        titlePanel.setBorder(BorderFactory.createEmptyBorder(borderOffset, 4, borderOffset, 1));
        add(titlePanel, BorderLayout.NORTH);
        
        JPanel northPanel = new JPanel();
        northPanel.setLayout(new BorderLayout());
        northPanel.add(content,BorderLayout.NORTH);
        northPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
        add(northPanel, BorderLayout.CENTER);

        if (outerBorder == null) {
            setBorder(BorderFactory.createLineBorder(Color.GRAY));
        } else {
            setBorder(BorderFactory.createCompoundBorder(outerBorder,
                    BorderFactory.createLineBorder(Color.GRAY)));
        }
    }
  
    public void setTitle(String label, Icon icon) {
    	this.label.setText(label);
    	this.label.setIcon(icon);
    }
    
    private static class GradientPanel extends JPanel {
		private static final long serialVersionUID = -6385751027379193053L;

		private GradientPanel(Color background) {
            setBackground(background);
        }

        public void paintComponent(Graphics g) {
            super.paintComponent(g);

            if (isOpaque()) {
                // Color controlColor = UIManager.getColor("control");
                Color controlColor = new Color(165, 201, 215);
                // Color controlColor = new Color(99, 153, 255);
                int width = getWidth();
                int height = getHeight();

                Graphics2D g2 = (Graphics2D) g;
                Paint oldPaint = g2.getPaint();
                g2.setPaint(new GradientPaint(0, 0, getBackground(), width, 0,
                        controlColor));
                g2.fillRect(0, 0, width, height);
                g2.setPaint(oldPaint);
            }
        }
    }
}