notebook.java

java写的一个编辑工具,类似文本编辑器

/*
 * Class.java
 *
 * Created on 2005年2月27日, 下午1:51
 */

 

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*; 
import javax.swing.text.*; 
import java.io.*; 
import java.awt.datatransfer.*; 
import javax.swing.text.rtf.RTFEditorKit;
import java.util.*;
/**
 *
 * @author  Administrator
 */
public class NoteBook extends JPanel
{
    private JTextPane  jta=new JTextPane();
    private JScrollPane jsp=new JScrollPane(jta);    
    
    private JMenuBar jmb=new JMenuBar();
    private JMenu file=new JMenu("文件");
    private JMenu edit=new JMenu("编辑");
    private JMenu view=new JMenu("视图");
    private JMenu help=new JMenu("帮助");    
    
    private Clipboard clipbd = getToolkit().getSystemClipboard(); 
    
    private JMenuItem jmi;
    public int enternum,changeflag=0 ;
    private String openFile,saveFile;
    private javax.swing.Timer timer=new javax.swing.Timer(180000,new Updat());
    private String[] keyWord={"abstract","boolean","break","byte","case","catch","char","class",
                                "const","continue","default","do","double","else","extends","final",
                                "finally","float","for","goto","if","implements","import","instanceof",
                                "int","interface","long","native","new","package","private","protected",
                                "public","return","short","static","strictfp","super","swich",
                                "synchronized","this","throw","throws","transient","try","void",
                                "volatile","while"};
   
    private static MutableAttributeSet keyAttr,normalAttr;
    
    private StyleContext m_context;
    private StyledDocument m_doc= jta.getStyledDocument();
    
    public NoteBook() 
    {                     
        setLayout(new BorderLayout());
        jmb.add(file); 
        jmb.add(edit);
        jmb.add(view);
        jmb.add(help);
        add(jmb, BorderLayout.NORTH);
        
        file.add(jmi=new JMenuItem("新建", KeyEvent.VK_N));
        jmi.addActionListener(new NewF());
        file.add(jmi=new JMenuItem("打开", KeyEvent.VK_O));
        jmi.addActionListener(new OpenF());
        file.add(jmi=new JMenuItem("保存", KeyEvent.VK_S));
        jmi.addActionListener(new SaveF());
        file.add(jmi=new JMenuItem("另存为",KeyEvent.VK_F1));
        jmi.addActionListener(new LSave());
        file.addSeparator();         
        file.add(jmi=new JMenuItem("退出",KeyEvent.VK_X));
        jmi.addActionListener(new ExitF());
        
        edit.add(jmi=new JMenuItem("剪切",KeyEvent.VK_T));
        jmi.addActionListener(new CutT());
        edit.add(jmi=new JMenuItem("复制",KeyEvent.VK_C));
        jmi.addActionListener(new CopyT());
        edit.add(jmi=new JMenuItem("粘贴",KeyEvent.VK_P));
        jmi.addActionListener(new PasteT());
        edit.add(jmi=new JMenuItem("删除",KeyEvent.VK_D));
        jmi.addActionListener(new DeleteT());
        edit.addSeparator();        
        edit.add(jmi=new JMenuItem("查找",KeyEvent.VK_F));
        jmi.addActionListener(new Find());
        edit.add(jmi=new JMenuItem("查找下一个",KeyEvent.VK_N));
        jmi.addActionListener(new FindNext());
        edit.add(jmi=new JMenuItem("替换",KeyEvent.VK_R));
        jmi.addActionListener(new Replace());
        edit.addSeparator();
        edit.add(jmi=new JMenuItem("全选",KeyEvent.VK_A));
        jmi.addActionListener(new SelAll());
        
        view.add(jmi=new JMenuItem("黑体",KeyEvent.VK_F3));
        jmi.addActionListener(new SetBold());
        view.add(jmi=new JMenuItem("颜色...",KeyEvent.VK_F4));
        jmi.addActionListener(new SetColor());
        
        help.add(jmi=new JMenuItem("关于NoteBook",KeyEvent.VK_H));
        jmi.addActionListener(new Help());        
        
        add(jsp, BorderLayout.CENTER); 
        
        jta.addKeyListener(new KeyAction(jta));
        
        m_context = new StyleContext();
        m_doc = new DefaultStyledDocument(m_context);
        jta.setDocument(m_doc);
        
        keyAttr = new SimpleAttributeSet();
        StyleConstants.setForeground(keyAttr, Color.blue);
        StyleConstants.setBold(keyAttr,true);
        normalAttr = new SimpleAttributeSet();
        StyleConstants.setForeground(normalAttr, Color.black);
        StyleConstants.setBold(normalAttr,false);
        
        timer.start();             
    }
    
    protected static final class Close extends WindowAdapter 
    {
        public void windowClosing(WindowEvent e)
        {            
            System.exit(0);
        }
    }
    //新建文件
    class NewF implements ActionListener
    {
        public void actionPerformed(ActionEvent e) 
        {             
            if(changeflag==0)
            {                             
                jta.setText("");
                return;
            }
            if(saveFile==null||changeflag==1)
            {
                String message="文件未保存！是否保存此文件？";
                int result=JOptionPane.showConfirmDialog(null,message);
                if (result == JOptionPane.YES_OPTION)
                {
                    if(saveFile==null)
                    {
                        SaveF savefile=new SaveF();
                        savefile.actionPerformed(e);
                    }
                    else
                    {
                        Updat update=new Updat();
                        update.actionPerformed(e);
                    }
                    jta.setText("");
                    saveFile=null;
                    changeflag=0;
                }
                if (result == JOptionPane.NO_OPTION)
                {
                    jta.setText("");
                    saveFile=null; 
                    changeflag=0;
                }
                if(result==JOptionPane.CANCEL_OPTION){}
            }
            else
            {
                jta.setText("");
                saveFile=null; 
                changeflag=0;
            }                                              
        } 
    }
    //打开文件
    class OpenF implements ActionListener
    {                         
        public void actionPerformed(ActionEvent e)
        {
            if(changeflag==1)
            {
                String message="文件未保存！是否保存此文件？";
                int result=JOptionPane.showConfirmDialog(null,message);
                if (result == JOptionPane.YES_OPTION)
                {
                    if(saveFile==null)
                    {
                        SaveF savefile=new SaveF();
                        savefile.actionPerformed(e);
                    }
                    else
                    {
                        Updat update=new Updat();
                        update.actionPerformed(e);
                    }                                      
                    changeflag=0;
                }
                if (result == JOptionPane.NO_OPTION)
                {                                      
                    changeflag=0;
                }
                if(result==JOptionPane.CANCEL_OPTION)
                {
                    return;
                }
            }
            JFileChooser jfc=new JFileChooser();
            int reVal=jfc.showDialog(NoteBook.this,"打开");
            if(reVal==JFileChooser.APPROVE_OPTION)
            {
                openFile=jfc.getSelectedFile().getPath();
                if(openFile==null)
                {                   
                    return;
                }
                try
                {
                    Reader in=new FileReader(openFile);
                    jta.read(in,null);                    
                }
                catch(IOException ioe)
                { 
                    System.err.println("IOException: " + ioe.getMessage());
                }
            }
            else
            {  
                changeflag=1;
                return;                
            }                    
            
            String text;
            text=jta.getText();           
            TextParse(text);                                
                
            saveFile=openFile;
            changeflag=0;
        }
        //打开文档扫描
        public void TextParse(String text)
        {           
            if(text.length() == 0)
                return;
            else
            {                
                StringTokenizer st = new StringTokenizer(text, "\t,\n,\r,, ,;,(,),[,],{,}, ,");
                int start = 0,pst=0;                
                int enterNumber = 0; //文章中回车数目      
                                
                m_doc.setCharacterAttributes(start, text.length(),normalAttr, true);
                while(st.hasMoreTokens())
                {
                    int i = 0;
                    enterNumber = 0;
                    String data;
                    data = st.nextToken();                   
                    if ( data == null) return;
                    for (i = 0; i < keyWord.length; i++ ) 
                    {
                        if (data.equals(keyWord[i]))
                        {
                            if(pst==0)
                            {
                                pst=text.indexOf(data);                                
                            }
                            else
                                pst=text.indexOf(data,pst+data.length());                            
                            for(int j=0;j<pst;j++)
                            {
                                if(text.charAt(j)=='\n')enterNumber++;                               
                            }                                      
                             //设置关键字显示属性    
                             m_doc = jta.getStyledDocument();           
                             jta.getStyledDocument().setCharacterAttributes(pst-enterNumber, data.length(),keyAttr,false);                     
                         } 
                     }
                 }               
            }
       }
        
    }
    //保存文件
    class SaveF implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            if(saveFile==null)
            {
                JFileChooser jfc = new JFileChooser();             
                int reVal = jfc.showSaveDialog(NoteBook.this);
                if(reVal == JFileChooser.CANCEL_OPTION)return;
                if(reVal == JFileChooser.APPROVE_OPTION) 
                { 
                    saveFile = jfc.getSelectedFile().getPath();
                    if(saveFile == null) 
                    { 
                        return; 
                    } 
                    else
                    {
                       String docToSave = jta.getText();
                       if(docToSave != null) 
                       {
                            FileOutputStream fstrm = null; 
                            BufferedOutputStream ostrm = null; 
                            try
                            {
                                fstrm = new FileOutputStream(saveFile); 
                                ostrm = new BufferedOutputStream(fstrm); 
                                byte[] bytes = null; 
                                try
                                {
                                    bytes = docToSave.getBytes(); 
                                }
                                catch(Exception e1)
                                {
                                    e1.printStackTrace(); 
                                }
                                ostrm.write(bytes); 
                            }
                            catch(IOException ioe1)
                            {
                                System.err.println("IOException: " +  ioe1.getMessage());
                            }
                            finally
                            {
                                try
                                {
                                    ostrm.flush(); 
                                    fstrm.close(); 
                                    ostrm.close(); 
                                }
                                catch(IOException ioe2)
                                {
                                    System.err.println("IOException: " + ioe2.getMessage());
                                }
                            }
                       }
                    }
                }
                else
                {
                    try
                    {
                        Writer out=new FileWriter(saveFile);
                        jta.write(out);
                    }
                    catch(Exception ex)
                    {
                        System.out.println("Exception:"+ex.getMessage());
                    }            
                }
            }
            changeflag=0;
        }
    }
    //另存为
    class LSave implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            String lsaveFile;
            JFileChooser jfc = new JFileChooser();             
            int reVal = jfc.showSaveDialog(NoteBook.this);
            if(reVal == JFileChooser.APPROVE_OPTION) 
            { 
                 lsaveFile = jfc.getSelectedFile().getPath();
                 if(lsaveFile == null) 
                 { 
                     return; 
                 } 
                  else
                 {
                     String docToSave = jta.getText();
                     if(docToSave != null) 
                     {
                          FileOutputStream fstrm = null; 
                          BufferedOutputStream ostrm = null; 
                          try
                          {
                              fstrm = new FileOutputStream(lsaveFile); 
                              ostrm = new BufferedOutputStream(fstrm); 
                              byte[] bytes = null; 
                              try
                              {
                                    bytes = docToSave.getBytes(); 
                              }
                              catch(Exception e1)
                              {
                                    e1.printStackTrace(); 
                              }
                              ostrm.write(bytes); 
                          }
                          catch(IOException ioe1)
                          {
                                System.err.println("IOException: " +  ioe1.getMessage());
                          }
                          finally
                          {
                                try
                                {
                                    ostrm.flush(); 
                                    fstrm.close(); 
                                    ostrm.close(); 
                                }
                                catch(IOException ioe2)
                                {
                                    System.err.println("IOException: " + ioe2.getMessage());
                                }
                          }
                     }
                  }
            }
            
        }
    }                                                                                                                                                                                                                                                  
    //退出
    class ExitF implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            if(changeflag==0)
            {                              
                timer.stop();
                System.exit(0); 
                return;
            }
            if(saveFile==null||changeflag==1)
            {
                String message="文件未保存！是否保存此文件？";
                int result=JOptionPane.showConfirmDialog(null,message);
                if (result == JOptionPane.YES_OPTION)
                {
                    if(saveFile==null)
                    {