notepad_main.java

java 编写的代码

/**
 * 
 */
package com.edu.sccp.snail.notepad.view;

/**
 * @author SSnail
 * @time 2008-1-3
 * @dscr 小豆包's 文本编辑器
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.undo.CannotUndoException;
public class Notepad_Main implements ActionListener ,ItemListener{
	/**
	 * @param args
	 * @dscri 构造函数
	 * @author 小豆包
	 */
	public Notepad_Main() {
		super();		
		try {
			initComponent();
			init();
			notepad.setDefaultCloseOperation(exit);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}
/**
 * 初始化窗体
 *@param no args
 *@return a Notepad Windows
 */
	public void init() {
		notepad.setSize(new Dimension(600, 450));
		notepad.setTitle("文本编辑器");
		c.setLayout(new BorderLayout());
		notepad.setJMenuBar(jmb);
		c.add(jtb, BorderLayout.NORTH);
		// jtb.addMouseListener(new JPopumMenu_MouseListener()); //右键监听事件
		c.add(jsp, BorderLayout.CENTER);
		c.add(jl,BorderLayout.SOUTH);
		popumMenuListener = new JPopumMenu_MouseListener();		
		notepad.addMouseListener(popumMenuListener); // 右键监听事件
		notepad.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent w){
				if(jb3.isEnabled()){
					int optionType = JOptionPane.showConfirmDialog(notepad,notepad.getTitle()+"文件是否保存","关闭文件",JOptionPane.YES_NO_CANCEL_OPTION);
				    if(optionType == JOptionPane.YES_OPTION)
				    {
				       /**
				        * 保存代码块
				        */
				   	}
				    else if(optionType == JOptionPane.CANCEL_OPTION )    {      
				        notepad.dispose();
				        System.exit(0);			    	
				    }else if(optionType == JOptionPane.NO_OPTION){
				    	//关闭自己的代码怎么写？
				    }
				}else{
					System.exit(0);
				}
			}
		});
		notepad.setVisible(true);

	}
	/**
	 * 得到状态栏
	 * 
	 */
	public JLabel getJLabel(){
		JLabel label = new JLabel("文本编辑器  1.0  ");		
		return label;
	}

	/**
	 * @param no args
	 * @dscri 初始化组件
	 * @author 小豆包
	 */
	public void initComponent() {
		notepad = new JFrame();
		c = notepad.getContentPane();
		jmb = getJMenuBar();
		jtb = getJToolBar();	
		jsp = getJSplitPane();
		jpm = getJPopuMenu(); // 右键菜单
		jl = getJLabel();

	}

	/**
	 * 得到右键菜单
	 * @return PopupMenu
	 * @author 小豆包
	 * @time 08/1/4
	 */
	public JPopupMenu getJPopuMenu() {
		JPopupMenu pm1 = new JPopupMenu();		
		pm1.add(find = new JMenuItem("查找"));
		pm1.addSeparator();		
		pm1.add(change = new JMenuItem("替换"));
		pm1.addSeparator();
		pm1.add(per = new JMenuItem("属性"));
		find.setAccelerator(KeyStroke.getKeyStroke('F', InputEvent.SHIFT_MASK));
		change.setAccelerator(KeyStroke
				.getKeyStroke('C', InputEvent.SHIFT_MASK));
			per.setAccelerator(KeyStroke.getKeyStroke('P', InputEvent.ALT_MASK));
		return pm1;
	}

	/**
	 * 获得一个有两个面板的面板
	 * @return JPanel
	 * @author 小豆包
	 * @param jp2 : 树形的父窗体
	 * @param jp1 : 编辑区
	 */
	public JSplitPane getJSplitPane() {
		jp1 = new JPanel();			
		jp1.setLayout(null);
		JScrollPane jp2 = getJtree_JScrollPane();	
		JSplitPane jsp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, jp2, jp1);
		jsp.setDividerSize(4);
		jsp.addMouseListener(popumMenuListener); // 右键监听事件
		return jsp;
	}

	/**
	 * 返回一个带有树形结构的JPanel
	 * @author 小豆包
	 * @time 08/1/6
	 */
	public JScrollPane getJtree_JScrollPane(){
		JScrollPane jp = new JScrollPane();
		jt = new Notepad_Tree(this);		
		jp.setViewportView(jt);
	    /**
		 * 绑定组件事件，当组件大小改变时
		 * 滚动条随之大小改变
		 * 确保滚动条的大小与其父组件的大小一致
		 */
		 /*	jp.addComponentListener(new ComponentAdapter(){
			public void componentResized(ComponentEvent e) {
				Component parnet = e.getComponent();
				Dimension parnetSize = parnet.getSize();
				jsp1.setSize(parnetSize);				
			}
		});*/
		return jp;
	}
	/**
	 * 获得工具栏
	 * @return JToolBar
	 * @author 小豆包
	 */
	public JToolBar getJToolBar() {	
			JToolBar btj = new JToolBar();
			jb1 = new JButton(icon1);
			jb2 = new JButton(icon3);
			jb3 = new JButton(icon2);
			jb4 = new JButton(icon4);
			jb5 = new JButton(icon5);
			jb6 = new JButton(icon6);
			jb1.setToolTipText("新建");
			jb2.setToolTipText("打开");
			jb3.setToolTipText("保存");
			jb4.setToolTipText("复制");
			jb5.setToolTipText("剪切");
			jb6.setToolTipText("粘贴");
			btj.add(jb1);
			btj.add(jb2);
			btj.add(jb3);
			btj.add(jb4);
			btj.add(jb5);
			btj.add(jb6);
			////////////////////////////////////////
			jb1.addActionListener(this);
			jb2.addActionListener(this);
			jb3.addActionListener(this);
			jb4.addActionListener(this);
			jb5.addActionListener(this);
			jb6.addActionListener(this);		
			////////////////////////////////////////		
			btj.setFloatable(false);
			return btj;
	}

	/**
	 * 构造一个JMenuBar
	 * 
	 * @return JMenuBar
	 * @author 小豆包
	 */
	public JMenuBar getJMenuBar() {
		JMenuBar jmb = new JMenuBar();
		JMenu fileF = new JMenu("文件(F)");
		JMenu fileE = new JMenu("编辑(E)");
		JMenu fileO = new JMenu("格式(O)");
		JMenu fileV = new JMenu("查看(V)");
		JMenu fileS = new JMenu("外观(S)");
		JMenu fileH = new JMenu("帮助(H)");
		fileF1 = new JMenuItem("新建 (N)");
		fileF2 = new JMenuItem("打开 (O)");
		fileF3 = new JMenuItem("保存 (S)");
		fileF4 = new JMenuItem("另存为(A)");
		fileF5 = new JMenuItem("退出(E)");
		fileE1 = new JMenuItem("撤销(U)");
		fileE2 = new JMenuItem("剪贴(T)");
		fileE3 = new JMenuItem("复制(C)");
		fileE4 = new JMenuItem("粘贴(P)");
		fileE5 = new JMenuItem("查找(F)");
		fileE6 = new JMenuItem("查找下一个(N)");
		fileE7 = new JMenuItem("替换(R)");
		fileO1 = new JCheckBoxMenuItem("自动换行（W）",true);
		fileO2 = new JMenuItem("字体(F)");
		fileO3 = new JMenuItem("颜色(C)");
		fileV1 = new JCheckBoxMenuItem("状态栏(Z)",true);
		fileH1 = new JMenuItem("主题");
		
		fileF1.setAccelerator(KeyStroke.getKeyStroke('N',KeyEvent.ALT_MASK,false));
		fileF2.setAccelerator(KeyStroke.getKeyStroke('O',KeyEvent.ALT_MASK,false));
		fileF3.setAccelerator(KeyStroke.getKeyStroke('S',KeyEvent.ALT_MASK,false));
		fileF4.setAccelerator(KeyStroke.getKeyStroke('A',KeyEvent.ALT_MASK,false));
		fileF5.setAccelerator(KeyStroke.getKeyStroke('E',KeyEvent.ALT_MASK,false));
		fileE1.setAccelerator(KeyStroke.getKeyStroke('U',KeyEvent.ALT_MASK,false));
		fileE2.setAccelerator(KeyStroke.getKeyStroke('T',KeyEvent.ALT_MASK,false));
		fileE3.setAccelerator(KeyStroke.getKeyStroke('C',KeyEvent.ALT_MASK,false));
		fileE4.setAccelerator(KeyStroke.getKeyStroke('P',KeyEvent.ALT_MASK,false));
		fileE5.setAccelerator(KeyStroke.getKeyStroke('F',KeyEvent.ALT_MASK,false));
		fileE6.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F3,KeyEvent.ALT_MASK,false));
		fileE7.setAccelerator(KeyStroke.getKeyStroke('R',KeyEvent.ALT_MASK,false));
		fileO1.setAccelerator(KeyStroke.getKeyStroke('W',KeyEvent.ALT_MASK,false));
		fileO2.setAccelerator(KeyStroke.getKeyStroke('F',KeyEvent.CTRL_MASK,false));
		fileO3.setAccelerator(KeyStroke.getKeyStroke('C',KeyEvent.CTRL_MASK,false));
		fileV1.setAccelerator(KeyStroke.getKeyStroke('Z',KeyEvent.ALT_MASK,false));
		
		fileF1.addActionListener(this);
		fileF2.addActionListener(this);
		fileF3.addActionListener(this);
		fileF4.addActionListener(this);
		fileF5.addActionListener(this);
		fileE1.addActionListener(this);
		fileE2.addActionListener(this);
		fileE3.addActionListener(this);
		fileE4.addActionListener(this);
		fileE5.addActionListener(this);
		fileE6.addActionListener(this);
		fileE7.addActionListener(this);
		fileO1.addItemListener(this);
		fileO2.addActionListener(this);
		fileO3.addActionListener(this);
		fileV1.addItemListener(this);
		fileH1.addActionListener(this);
		
		fileF.add(fileF1);
		fileF.add(fileF2);
		fileF.addSeparator();
		fileF.add(fileF3);
		fileF.add(fileF4);
		fileF.addSeparator();
		fileF.add(fileF5);
		fileE.add(fileE1);
		fileE.addSeparator();
		fileE.add(fileE2);
		fileE.add(fileE3);
		fileE.addSeparator();
		fileE.add(fileE4);
		fileE.add(fileE5);
		fileE.add(fileE6);
		fileE.addSeparator();
		fileE.add(fileE7);
		fileO.add(fileO1);
		fileE.addSeparator();
		fileO.add(fileO2);
		fileO.add(fileO3);
		fileV.add(fileV1);
		fileH.add(fileH1);
		jmb.add(fileF);
		jmb.add(fileE);
		jmb.add(fileO);
		jmb.add(fileV);
		jmb.add(fileS);
		jmb.add(fileH);
		return jmb;
	}
	   /**
	    * 事件处理
	    */
		
	class JPopumMenu_MouseListener extends MouseAdapter {
		public void mousePressed(MouseEvent e) {
			Component parner = e.getComponent();
			if (e.getButton() == MouseEvent.BUTTON3) {				
				int x = e.getX();
				int y = e.getY(); // 获得鼠标在父组件上的坐标
				Dimension parentSize = parner.getSize(); // 返回父组件的大小
				Dimension d = jpm.getSize();
				y = ((parentSize.height - y) - d.height) > 0 ? y
						: (parentSize.height - d.height); // 如果坐标显示不开 则自动定位
				x = ((parentSize.width - x) - d.width) > 0 ? x
						: (parentSize.width - d.width);
				jpm.show(parner, x, y);
				
			}
		}
	}
	public void itemStateChanged(ItemEvent e) {
		//显示状态栏
		if(((JCheckBoxMenuItem) fileV1).getState()){
			jl.setVisible(true);
		}else{
			jl.setVisible(false);
		}
		if(((JCheckBoxMenuItem)fileO1).getState()){
			/**
			 * 自动换行
			 */
			nf.jta.setLineWrap(true);
			nf.jta.setWrapStyleWord(true);
		}else{
			nf.jta.setLineWrap(false);
			nf.jta.setWrapStyleWord(false);
		}
	}
   /**
    * 事件处理
    */
	public void actionPerformed(ActionEvent e) {
		Object ob = e.getSource();		
		if(ob == fileF1 || ob == jb1) {   //// 新建 (N)		
			nf = new Notepad_newFile("无标题文档");	
			
			jp1.add(nf);			
		}if(ob == fileF2 || ob == jb2) {     //	打开 (O)			
			new  Notepad_OpenFile(this);				
     	}if(ob == fileF3 || ob == jb3) {   //			
				/**
				 * 保存代码块
				 */		
     		new Notepad_SaveFile(this);			
			//fileF3.setEnabled(false);
		}if(ob == fileF4 || e.getSource() == jb4) {  //

			{
				/**
				 * 另存代码块
				 */
			}
		}if(ob == fileF5) {  //

			{
				/**
				 * 退出代码块
				 */
			}
			System.exit(0);
		}if(ob == fileE1){			
				/**
				 * 撤销代码块
				 */		
			try{
				nf.getUndo().undo();
			}catch(CannotUndoException e2){	
				
			}			
		}if(ob == fileE2){		
				/**
				 * 剪贴代码块
				 */			
		}if(ob == fileE3 || e.getSource() == jb4){			
				/**
				 * 复制代码块
				 * 还没贴过来
				 * 有时间再说
				 */			
		}if(ob == fileE4){			
				/**
				 * 黏贴代码块
				 * 还没贴过来
				 * 有时间再说
				 */			
		}if(ob == fileE5){			
				/**
				 * 查找代码块
				 * 还没贴过来
				 * 有时间再说
				 */	
			new Notepad_LookFor("查找",nf);
		}if(ob == fileE6){			
				/**
				 * 查找下一个代码块
				 * 还没贴过来
				 * 有时间再说
				 */
			
		}if(ob == fileE7){			
				/**
				 * 替换代码块
				 */		
			new Notepad_Change(nf);				
		}if(ob == fileO2){			
				/**
				 * 字体代码块
				 */				
			jp1.add(new Notepad_Font_Frame(nf));
		}if(ob == fileO3){			
				/**
				 * 颜色代码块
				 */		
			new Notepad_Color_Frame(nf);
		}if(ob == fileH1){			
				/**
				 * 帮助代码块
				 */
			Notepad_Help nh = new Notepad_Help("帮助");
			jp1.add(nh);			
		}
	}
	private final static int exit = JFrame.EXIT_ON_CLOSE;
	JFrame notepad = null;//
	private Container c = null;//
	private JMenuBar jmb = null;//
	private JToolBar jtb = null;//
	private JSplitPane jsp = null; //
	private JPopupMenu jpm = null; // 右键菜单
	private JPopumMenu_MouseListener popumMenuListener;
	private JMenuItem copy = null, paste = null, cut = null, per = null,
			refresh = null, find = null, change = null; // 右键功能菜单
	private JMenuItem fileF1,fileF2,fileF3,fileF4,fileF5,
	fileE1,fileE2,fileE3,fileE4,fileE5
	,fileE6,fileE7,fileO1,fileO2,fileO3
	,fileV1,fileH1;
	private JTree jt = null;	
	private JLabel jl = null;
	JPanel jp1 = null;   //右边编辑区
	Notepad_Font_Frame notepad_font = null;
	Notepad_newFile nf = null;
	private Icon icon1 = new ImageIcon("icon\\newfile.jpg");
	private Icon icon2 = new ImageIcon("icon\\save.jpg");
	private Icon icon3 = new ImageIcon("icon\\open.jpg");
	private Icon icon4 = new ImageIcon("icon\\copy.jpg");
	private Icon icon5 = new ImageIcon("icon\\cut.jpg");
	private Icon icon6 = new ImageIcon("icon\\paste.jpg");
	JButton jb1 = null;
	JButton jb2 = null;
	JButton jb3 = null;
	JButton jb4 = null;
	JButton jb5 = null;
	JButton jb6 = null;
	public static void main(String[] args) {
		new Notepad_Main();

	}	
}