textedit.java

JTREE的例子

package util2;

import javax.swing.*;
import javax.swing.text.*;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.text.AbstractDocument.*;
import util2.*;
import util3.*;
import util4.*;
import util5.*;

public class TextEdit extends Xeditor implements DocumentListener
{

  public TextEdit()
  {
    super();
    this.getDocument().addDocumentListener(this);
  }

  public void insertUpdate(DocumentEvent e){
    DefaultDocumentEvent dde=(DefaultDocumentEvent)e;
    System.out.println("offset:"+dde.getOffset()+"  length:"+dde.getLength());
    ((AbstractElement)((AbstractDocument)getDocument()).getBidiRootElement()).toString();
  }

  public void removeUpdate(DocumentEvent e){System.out.println("remove");}

  public void changedUpdate(DocumentEvent e){System.out.println("change");}

  public static void main(String[] arg)
  {
    class Trymain implements CountListener,ERCListener{
      Trymain(){}
      public void setCountText(String cou){}
      public void dispPopMen(MouseEvent e){}
    }
    JFrame jf=new JFrame("try it.");
    JScrollPane scroPan = new JScrollPane();
    jf.setSize(400,300);
    TextEdit xe=new TextEdit();
    Trymain tm=new Trymain();
    xe.addCountListener(tm);
    xe.addERCListener(tm);
    scroPan.getViewport().add(xe, null);
    jf.getContentPane().add(scroPan);
    JPanel panel=new JPanel();
   //panel.add(undoBtn);
    //panel.add(redoBtn);
    jf.getContentPane().add(panel,BorderLayout.SOUTH);
    //jf.getContentPane().add(jtf,BorderLayout.SOUTH);
    //FileDialog fd=new FileDialog(jf);
    //fd.setBounds(250,200,200,140);
    jf.show();
  }
}