controlhelp.java

来自「源码为科学出版社出版的英文<java设计模式>(影印版)所用的所有例」· Java 代码 · 共 23 行

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

public class ControlHelp extends HelpWindow {
   String message, title;
   int icon;
   JFrame frame;

   public ControlHelp(JFrame f) {
      mesg = "Select any control to activate it";
      title ="Control help";
      icon = JOptionPane.DEFAULT_OPTION ;
      frame = f;
   }
   public void sendToChain(Component c) {
      System.out.println("Control help:"+c);
      if (! (c instanceof JxFrame)) 
            JOptionPane.showMessageDialog(frame, mesg, title, icon);
         else
            sendChain(c);
    }
}