import com.darwinsys.util.*;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/* 
 * Colors - demo of Swing JColorChooser.
 * Swing's JColorChooser can be used in three ways:
 * <UL><LI>Construct it and place it in a panel;
 * <LI>Call its ConstructDialog(  ) and get a JDialog back
 * <LI>Call its showDialog(  ) and get back the chosen color
 * </UL>
 * <P>We use the last method, as it's the simplest, and is how
 * you'd most likely use it in a real application.
 *
 * Originally appeared in the Linux Journal, 1999.
 */
public class JColorDemo extends JFrame
{
    /** A canvas to display the color in. */
    JLabel demo;
    /** The latest chosen Color */
    Color lastChosen;

    /** Constructor - set up the entire GUI for this program */
    public JColorDemo(  ) {
        super("Swing Color Demo");
        Container cp = getContentPane(  );
        JButton jButton;
        cp.add(BorderLayout.NORTH, jButton = new JButton("Change Color..."));
        jButton.setToolTipText("Click here to see the Color Chooser");
        jButton.addActionListener(new ActionListener(  ) {
            public void actionPerformed(ActionEvent actionEvent)
            {
                Color ch = JColorChooser.showDialog(
                    JColorDemo.this,                // parent
                    "Swing Demo Color Popup",    // title
                    getBackground(  ));            // default
                if (ch != null)
                    demo.setBackground(ch);
            }
        });
        cp.add(BorderLayout.CENTER, demo = 
            new MyLabel("Your One True Color", 200, 100));
        demo.setToolTipText("This is the last color you chose");
        pack(  );
        addWindowListener(new WindowCloser(this, true));
    }

    /** good old main */
    public static void main(String[] argv)
    {
        new JColorDemo(  ).setVisible(true);
    }
}