menudemo.java

使用方法： 实例程序的运行： 每个实例下都有本实例的.xml文件或.html文件或.xsl文件

package com.javaworld.mar2000.sax;

/*
 * Sample code for "SAX Appeal", by Mark Johnson, JavaWorld, March 2000.
 * Code is may be used for any legal purpose, including commercial
 * purposes, with no warranty expressed or implied.
 * email: [e-mail]
 */
import java.awt.*;
import java.awt.event.*;

/**
 * Demo class that shows how to use Menu XML.
 */
public class MenuDemo implements MenuItemHandler {
	Button _b1;

/**
 * Main constructor
 */
public MenuDemo() {
	super();
}
/**
 * Takes appropriate action when a menu item is activated.
 */
public void itemActivated(MenuItem item, ActionEvent e, String sCommand) {;
	System.out.println("Activated: " + sCommand);

	if (sCommand.equals("Exit")) {
		System.exit(0);
	}
}
/**
 * Reports that a CheckboxMenuItem has been deactivated.
 * @param e java.awt.event.ActionEvent
 */
public void itemDeselected(MenuItem item, ItemEvent e, String sCommand) {
	System.out.println("Deselected: " + sCommand);
	if (sCommand.equals("Disable Button 1")) {
		_b1.setEnabled(true);
	}
}
/**
 * Reports that a CheckboxMenuItem has been deactivated.
 * @param e java.awt.event.ActionEvent
 */
public void itemSelected(MenuItem item, ItemEvent e, String sCommand) {;
	System.out.println("Selected: " + sCommand);
	if (sCommand.equals("Disable Button 1")) {
		_b1.setEnabled(false);
	}
}
/**
 * Demonstrates how to use "Menu XML"
 */ 
public static void main(String args[]) {
	MenuDemo md = new MenuDemo();

	md.runDemo(args);
}
/**
 * Builds a menu in code and displays it. This method exists only
 * to show the sort of code that Menu XML replaces.
 */
public void manualMenuDemo(String[] args) {
	MenuBar menubarTop = new MenuBar();
	Menu menuFile = new Menu("File");
	Menu menuEdit = new Menu("Edit");
	
	menubarTop.add(menuFile);
	menubarTop.add(menuEdit);
	
	menuFile.add(new MenuItem("Open"));
	menuFile.add(new MenuItem("Close"));
	menuFile.add(new MenuItem("And so on..."));
	menuEdit.add(new MenuItem("Cut"));
	menuEdit.add(new MenuItem("Paste"));
	menuEdit.add(new MenuItem("Delete"));
	
	Frame frame = new Frame("ManualMenuDemo");
	frame.addWindowListener(new WindowAdapter() {
		public void windowClosing(WindowEvent e) {
			System.exit(0);
		}
	});
	frame.setMenuBar(menubarTop);
	frame.pack();
	frame.show();
}
/**
 * main() calls this method to run the demo.
 */
public void runDemo(String[] args) {
	SaxMenuLoader sml = new SaxMenuLoader();

	// Bind names of handlers to the MenuItemHandlers they represent
	sml.registerMenuItemHandler("FileHandler", this);
	sml.registerMenuItemHandler("EditHandler", this);
	sml.registerMenuItemHandler("HelpHandler", this);
	sml.registerMenuItemHandler("PopupHandler", this);
	sml.registerMenuItemHandler("SubMenu1Handler", this);
	sml.registerMenuItemHandler("Button1Enabler", this);

	// Parse the file
	sml.loadMenus(args[0]);

	// If menu load succeeded, show the menu in a frame
	MenuBar menubarTop = sml.menubarFind(args[1]);
	if (menubarTop != null) {
		Frame frame = new Frame("Menu demo 1");
		frame.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		frame.setMenuBar(menubarTop);
		_b1 = new Button("Button");
		_b1.addMouseListener(new MenuPopper(_b1, sml, "Pop1"));
		frame.add(_b1);
		frame.pack();
		frame.show();
	} else {
		System.out.println(args[1] + ": no such menu");
	}
}
}