jishiben.java

程序人员在编程过程中如果遇到相关问题可以来这里进行参考

  FindDialog dFind = new FindDialog(text, JiShiBen.this);
   dFind.setVisible(true);
    }
  
    private void numPerformed() {
       num=text.getText().length();
       JOptionPane.showMessageDialog(this, "当前字符个数为:"+num);
    }
   private void metalPerformed(){
   try
{
UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel") ;
}
catch(Exception e)
{e.printStackTrace();
}

   }
    private void motifPerformed(){
   try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel") ;
}
catch(Exception e)
{e.printStackTrace();
}

   }
     private void windowsPerformed(){
   try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel") ;
}
catch(Exception e)
{e.printStackTrace();
}

   }
  
  
  
   /**
    *<p>Title: </p>
    *<p>Description: 处理菜单出发的事件</p>
    *<p>Copyright: Copyright (c) 2005</p>
    *<p>Company: </p>
    *@author 红色彼岸
    *@version 0.1
    */
     //内部类,监听文挡undo
     class UndoHander implements UndoableEditListener 
 { 
   public void undoableEditHappened(UndoableEditEvent eundo) 
    { 
      undo.addEdit(eundo.getEdit()); 
    } 
     }
     //内部类,监听工具栏字体复选框
      class CheckBoxListener implements ItemListener{
     public void itemStateChanged(ItemEvent e){
       if(bold.isSelected())
	 text.setFont(new Font(font,Font.BOLD,m));
       if(italic.isSelected())
	 text.setFont(new Font(font,Font.ITALIC,m));
      }  
   }
    
   //内部类,监听菜单项目
    class MenuItemEventHandler implements ActionListener{
 public void actionPerformed(ActionEvent e) {
     JMenuItem item = (JMenuItem)e.getSource();
     if(item == mi_File_New||item==pi_New)
  newPerformed();
     else if(item == mi_File_Open)
  openPerformed();
     else if(item == mi_File_Save )
  savePerformed();
     else if(item == mi_File_LSave)
  saveAsPerformed();
  //   else if(item == pageSetItem)
  //pageSetPerformed();
  //   else if(item == printItem)
 // printPerformed();
     else if(item == mi_File_Exit)
  exitPerformed();
     else if(item == undoItem)
  undoPerformed();
     else if(item == redoItem)
  redoPerformed();
     else if(item == mi_Edit_Cut||item==pi_Cut)
  cutPerformed();
     else if(item == mi_Edit_Copy||item==pi_Copy)
  copyPerformed();
     else if(item == pasteItem||item==pi_Paste)
  pastePerformed();
     else if(item == pi_Del)
  deletePerformed();
     else if(item==foreColor)
         foreColorPerformed();
       else if(item==backColor)
         backColorPerformed();
   else if(item == selectAll||item==pi_selectAll)
  selectAllPerformed();
     else if(item == dateTime)
      timePerformed();
     else if(item == replaceItem)
  replacePerformed();
  //   else if(item == goToLineItem)
 //goToLinePerformed();
     else if(item == findItem)
  findPerformed();
     else if(item == findNextItem)
  findNextPerformed();
   else if(item == numItem)
  numPerformed();
   else if(item==metal)
       metalPerformed();
   else if(item==motif)
       motifPerformed();
     else if(item==windows)
       windowsPerformed();
 }
    }
 
  
   
    
   
   //类SimpleEditor作为动作事件的监听器，方法中要区分事件源
    public void actionPerformed(ActionEvent e){
   
        Object m=e.getSource();
   
     if((JButton)m==cutBtn)
    {
    	
       cutPerformed();
   } 
          else if((JButton)m ==saveBtn)
        {
          savePerformed();
        } 
    
    else if((JButton)m ==newBtn)
        {
          newPerformed();
        }
 
  else if(m==copyBtn)
    {
    copyPerformed();
    }
    else if(m==pasteBtn)
    {
    pastePerformed();
    }
   else if(m==openBtn)  
       openPerformed();
    else if(m==undoBtn)
        undoPerformed();
        else if(m==redoBtn)
        redoPerformed();
       
    }  

 public static void main(String args[])
    {
        JiShiBen f = new JiShiBen();
        f.setSize(300,200);
        f.setVisible(true);
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent we)  {
                System.exit(0);
            }
        });
    }

   
 
     class FindDialog extends JDialog implements ActionListener, WindowListener,
        KeyListener {
    final JTextArea textArea;
    JLabel lfind, lreplace;
    JTextField tfind, treplace;
    JButton bfind, breplace, bnext, bcancel;
    JPanel fieldPane, buttonPane;
    String strFind, strReplace;
    int txtPlace, txtLen, strNext;
    FindDialog(final JTextArea textArea, JFrame findDialog) {
        super(findDialog, "查找/替换", false);
        this.textArea = textArea;
        Container findPane = getContentPane();
        lfind = new JLabel("查找内容");
        lreplace = new JLabel("替换");
        tfind = new JTextField();
        treplace = new JTextField();
        bfind = new JButton("查找", new ImageIcon("ico/Find16.gif"));
        breplace = new JButton("替换", new ImageIcon("ico/Replace16.gif"));
        bcancel = new JButton("取消", new ImageIcon("ico/exit.gif"));
        bnext = new JButton("下一个", new ImageIcon("ico/FindAgain16.gif"));
        fieldPane = new JPanel();
        buttonPane = new JPanel();
        fieldPane.setLayout(new GridLayout(2, 2));
        findPane.add(fieldPane, BorderLayout.CENTER);
        findPane.add(buttonPane, BorderLayout.SOUTH);
        fieldPane.add(lfind);
        fieldPane.add(tfind);
        fieldPane.add(lreplace);
        fieldPane.add(treplace);
        buttonPane.add(bfind);
        buttonPane.add(breplace);
        buttonPane.add(bnext);
        buttonPane.add(bcancel);
        bfind.addActionListener(this);
        breplace.addActionListener(this);
        bcancel.addActionListener(this);
        this.addWindowListener(this);
        tfind.addKeyListener(this);
        treplace.addKeyListener(this);
        bnext.addActionListener(this);
        
        setSize(370, 120);
        setResizable(false);
    }
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == bfind) {
            find();
        }
        if (e.getSource() == breplace) {
            replace();
        }
        if (e.getSource() == bcancel) {
            setVisible(false);
        }
        if (e.getSource() == bnext) {
            findNext();
        }
    }
    //查找处理
    private void find() {
        strFind = tfind.getText();
        strNext = 0; //开始位置
        txtPlace = textArea.getText().indexOf(strFind, strNext);
        txtLen = txtPlace + strFind.length();
        textArea.select(txtPlace, txtLen);
        strNext = textArea.getSelectionEnd(); //选中内容的最后位置
        if (txtPlace == -1) /*没有找到的处理*/ {
            JOptionPane.showMessageDialog(null, "没你找到你需要的内容", "查找",
                    JOptionPane.INFORMATION_MESSAGE);
        }
        bnext.setEnabled(true);
    }
    //替换处理
    private void replace() {
        strReplace = treplace.getText();
        textArea.replaceRange(strReplace, txtPlace, txtPlace + strFind.length());
       
    }
    //查找下一个处理
    private void findNext() {
        bfind.setEnabled(false);
        txtPlace = textArea.getText().indexOf(strFind, strNext);
        txtLen = txtPlace + strFind.length();
        textArea.select(txtPlace, txtLen);
        strNext = textArea.getSelectionEnd(); //获取查找下一个内容的最后位置
        if (txtPlace == -1) /*没有找到的处理*/ {
            JOptionPane.showMessageDialog(null, "没你找到你需要的内容", "查找下一个",
                    JOptionPane.INFORMATION_MESSAGE);
            strNext = 0; //没有找到初始化位置,以变重新查找
            tfind.setText("");
            bnext.setEnabled(false);
            breplace.setEnabled(false);
        }
    }

        public void windowOpened(WindowEvent e) {
        }

        public void windowClosing(WindowEvent e) {
        }

        public void windowClosed(WindowEvent e) {
        }

        public void windowIconified(WindowEvent e) {
        }

        public void windowDeiconified(WindowEvent e) {
        }

        public void windowActivated(WindowEvent e) {
        }

        public void windowDeactivated(WindowEvent e) {
        }

        public void keyTyped(KeyEvent e) {
        }

        public void keyPressed(KeyEvent e) {
        }

        public void keyReleased(KeyEvent e) {
        }
}

}