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 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle or the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package javademo.swing.content.HtmlDemo;

/* HtmlDemo.java needs no other files. */

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

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

@SuppressWarnings("serial")
public class HtmlDemo extends JPanel implements ActionListener
{
    JLabel theLabel;
    
    JTextArea htmlTextArea;
    
    public HtmlDemo()
    {
        setLayout(new BoxLayout(this, BoxLayout.LINE_AXIS));
        
        String initialText = "<html>\n" + "Color and font test:\n" + "<ul>\n" + "<li><font color=red>red</font>\n"
                + "<li><font color=blue>blue</font>\n" + "<li><font color=green>green</font>\n"
                + "<li><font size=-2>small</font>\n" + "<li><font size=+2>large</font>\n" + "<li><i>italic</i>\n"
                + "<li><b>bold</b>\n" + "</ul>\n";
        
        htmlTextArea = new JTextArea(10, 20);
        htmlTextArea.setText(initialText);
        JScrollPane scrollPane = new JScrollPane(htmlTextArea);
        
        JButton changeTheLabel = new JButton("Change the label");
        changeTheLabel.setMnemonic(KeyEvent.VK_C);
        changeTheLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
        changeTheLabel.addActionListener(this);
        
        theLabel = new JLabel(initialText)
        {
            public Dimension getPreferredSize()
            {
                return new Dimension(200, 200);
            }
            
            public Dimension getMinimumSize()
            {
                return new Dimension(200, 200);
            }
            
            public Dimension getMaximumSize()
            {
                return new Dimension(200, 200);
            }
        };
        theLabel.setVerticalAlignment(SwingConstants.CENTER);
        theLabel.setHorizontalAlignment(SwingConstants.CENTER);
        
        JPanel leftPanel = new JPanel();
        leftPanel.setLayout(new BoxLayout(leftPanel, BoxLayout.PAGE_AXIS));
        leftPanel.setBorder(BorderFactory.createCompoundBorder(
                BorderFactory.createTitledBorder("Edit the HTML, then click the button"),
                BorderFactory.createEmptyBorder(10, 10, 10, 10)));
        leftPanel.add(scrollPane);
        leftPanel.add(Box.createRigidArea(new Dimension(0, 10)));
        leftPanel.add(changeTheLabel);
        
        JPanel rightPanel = new JPanel();
        rightPanel.setLayout(new BoxLayout(rightPanel, BoxLayout.PAGE_AXIS));
        rightPanel.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("A label with HTML"),
                BorderFactory.createEmptyBorder(10, 10, 10, 10)));
        rightPanel.add(theLabel);
        
        setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
        add(leftPanel);
        add(Box.createRigidArea(new Dimension(10, 0)));
        add(rightPanel);
    }
    
    // React to the user pushing the Change button.
    public void actionPerformed(ActionEvent e)
    {
        theLabel.setText(htmlTextArea.getText());
    }
    
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event dispatch thread.
     */
    private static void createAndShowGUI()
    {
        // Create and set up the window.
        JFrame frame = new JFrame("HtmlDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // Add content to the window.
        frame.add(new HtmlDemo());
        
        // Display the window.
        frame.pack();
        frame.setVisible(true);
    }
    
    public static void main(String[] args)
    {
        // Schedule a job for the event dispatch thread:
        // creating and showing this application's GUI.
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                // Turn off metal's use of bold fonts
                UIManager.put("swing.boldMetal", Boolean.FALSE);
                createAndShowGUI();
            }
        });
    }
}