mymenuwork.java

Menu菜单的演示例子2

import java.awt.*;
import java.awt.event.*;
public class MyMenuWork implements ActionListener
{
	Font fo;
	Font fo1;
	Font fo2;
	Font fo3;
	Font fos;
	Frame f;
	Label l;
	Dialog d;
	MenuBar mb;
	Menu a;
	Menu b;
	Menu b1;
	Menu b2;
	MenuItem a1;
	MenuItem a2;
	MenuItem b11;
	MenuItem b12;
	MenuItem b13;
	CheckboxMenuItem b21;
	CheckboxMenuItem b22;
	MenuItem b23;
	MenuItem b24;
	MenuItem b25;
	
	public void setM()
	{
		fo = new Font("Mine",Font.ITALIC,200);
		fo1 = new Font("Mine",Font.BOLD,200);
		fo2 = new Font("Mine",Font.BOLD+Font.ITALIC,200);//实现字体效果的叠加
		fo3 = new Font("Mine",Font.PLAIN,200);
		
		f = new Frame("My Menu");
		f.setLayout(new BorderLayout(5,5));
		f.addWindowListener(new WindowAdapter()
		                    {
		                    	public void windowClosing(WindowEvent we)
		                    	{
		                    		System.exit(0);
		                    	}
		                    });
		l = new Label("忍");
		l.setFont(fo3);
	    fos = l.getFont();
		mb = new MenuBar();
		a = new Menu("File");
		b = new Menu("Format");
		b1 = new Menu("Color");
		b2 = new Menu("Font");
		a1 = new MenuItem("Abort");
		a1.addActionListener(this);
		a2 = new MenuItem("Exit");
		a2.addActionListener(this);
		b11 = new MenuItem("Red");
		b11.addActionListener(this);
		b12 = new MenuItem("Blue");
		b12.addActionListener(this);
		b13 = new MenuItem("Black");
		b13.addActionListener(this);
		b21 = new CheckboxMenuItem("Bold");
		b21.addItemListener(new ItemListener()//用内部类实现ItemListener事件侦听
		                    {
		                        public void itemStateChanged(ItemEvent ie)
	                            {
		                            if(ie.getStateChange() == ItemEvent.SELECTED)
		                            {
			                            if(l.getFont().equals(fo))
		                                {
			                                l.setFont(fo2);
	
		                                }
		                                else
		                                {
		    	                            l.setFont(fo1);
		                                }
		                            }
		                            else
		                            {
		                            	if(l.getFont().equals(fo2))
		    	                        {
		    	                             l.setFont(fo);
		    	                        }
		    	                        else
		    	                        {
		                            	    l.setFont(fos);//取消复选后的操作继续完善
		                            	}
		                            }
		                        }
		                    }
		                    );
		b22 = new CheckboxMenuItem("Italic");
		b22.addItemListener(new ItemListener()
		                    {
		                        public void itemStateChanged(ItemEvent ie)
	                            {
		                            if(ie.getStateChange() == ItemEvent.SELECTED)
		                            {
			                            if(l.getFont().equals(fo1))
		                                {
			                                l.setFont(fo2);
			                            }
		                                else
		                                {		    	                            
		    	                            l.setFont(fo);		    	                            
		                                }
		                            }
		                            else
		                            {
		                            	if(l.getFont().equals(fo2))
		    	                        {
		    	                             l.setFont(fo1);
		    	                        }
		    	                        else
		    	                        {
		                            	    l.setFont(fos);//取消复选后的操作继续完善
		                            	}
		                            }
		                        }	
		                    }
		                    );
		b23 = new MenuItem("Serif");
		b23.addActionListener(this);
		b24 = new MenuItem("Monospaced");
		b24.addActionListener(this);
		b25 = new MenuItem("TimesRoman");
		b25.addActionListener(this);
		                    
		f.setMenuBar(mb);
		f.add(l,BorderLayout.CENTER);
		mb.add(a);
		mb.add(b);
		a.add(a1);
		a.addSeparator();
		a.add(a2);
		b.add(b1);
		b.addSeparator();
		b.add(b2);
		b1.add(b11);
		b1.add(b12);
		b1.add(b13);
		b2.add(b21);
		b2.add(b22);
		b2.addSeparator();
		b2.add(b23);
		b2.add(b24);
		b2.add(b25);
		f.setSize(300,300);
		f.show();
	}
	
	public static void main(String[] args)
	{
		MyMenuWork m = new MyMenuWork();
		m.setM();
	}
	
	public void actionPerformed(ActionEvent e)
	{
		if(e.getActionCommand().equals("Exit"))
		{
			System.exit(0);
		}
		else if(e.getActionCommand().equals("Red"))
		{
			l.setForeground(Color.red);
		}
		else if(e.getActionCommand().equals("Blue"))
		{
			l.setForeground(Color.blue);
		}
		else if(e.getActionCommand().equals("Black"))
		{
			l.setForeground(Color.black);
		}
		else if(e.getActionCommand().equals("Abort"))
		{
			d = new Dialog(f,"My Menu Work!",true);
			d.setLayout(new BorderLayout());
			TextField t = new TextField("忍字头上一把刀！",20);
			t.setFont(new Font("text",Font.PLAIN,20));
			d.add(t,BorderLayout.CENTER);
			d.setSize(200,200);
			d.addWindowListener(new WindowAdapter()
			                    {
			                    	public void windowClosing(WindowEvent e)
			                    	{
			                    		//System.exit(0);
			                    		d.hide();//只是隐藏了而已
			                        }
			                    });
			d.show();
		}
		else if(e.getActionCommand().equals("Serif"))
		{
			l.setFont(new Font("Serif",l.getFont().getStyle(),200));
		}
		else if(e.getActionCommand().equals("Monospaced"))
		{
			l.setFont(new Font("Monospaced",l.getFont().getStyle(),200));
		}
		else if(e.getActionCommand().equals("TimesRoman"))
		{
			l.setFont(new Font("TimesRoman",l.getFont().getStyle(),200));
		}
	}
}