colorchooserdemo.java

来自「java 完全探索的随书源码」· Java 代码 · 共 51 行

// ColorChooserDemo.java

import javax.swing.*;
import javax.swing.event.*;

import java.awt.*;
import java.awt.event.*;

class ColorChooserDemo extends JFrame
{
   ColorChooserDemo (String title)
   {
      super (title);

      addWindowListener (new WindowAdapter ()
                         {
                             public void windowClosing (WindowEvent e)
                             {
                                System.exit (0);
                             }
                         });

      final JButton jb = new JButton ("Ok");

      getContentPane ().add (jb, BorderLayout.NORTH);

      final JColorChooser cc = new JColorChooser (Color.black);

      getContentPane ().add (cc, BorderLayout.SOUTH);

      ChangeListener cl = new ChangeListener ()
                          {
                              public void stateChanged (ChangeEvent e)
                              {
                                 Color nc = cc.getColor ();
                                 jb.setForeground (nc);
                              }
                          };

      cc.getSelectionModel ().addChangeListener (cl);
                                            
      pack ();
      setVisible (true);
   }

   public static void main (String [] args)
   {
      new ColorChooserDemo ("ColorChooser Demo");
   }
}