appdemo.java~9~

源程序（包括最初的版本

package App;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */
import javax.swing.*;
import java.awt.* ;
import java.awt.event.*;
import javax.swing.event.*;
import javax.swing.border.*;

public class AppDemo extends JFrame implements ActionListener,ChangeListener{


  //绘图组件
  private JButton preTravel=new JButton("先根遍历");//先根按钮
  private JButton poseTravel=new JButton("后根遍历");//后根按钮
  private JTextField text=new JTextField(40);//文本输入
  private JSlider slider_FPS = new JSlider(JSlider.HORIZONTAL, 1, 30, 20) ;//滑块
  private JRadioButton handInput=new JRadioButton("手动输入");
  private JRadioButton fieldInput=new JRadioButton("导入文件");
  private JPanel control=new JPanel();//控制选择区
  private JPanel inPut=new JPanel();//输入区
  private JPanel controlAndinput=new JPanel();
  private Container workPad = this.getContentPane();
  private DrawPanel drawPanel=new DrawPanel();//绘图板
  //数据对象
  Table table;//表格数据，记录了节点的坐标等信息
  Tree tree;//树



  public AppDemo() {
    //初始化
    table=new Table();
    tree=new Tree();
    //drawPanel=new DrawPanel(table);

    //框架
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setSize(680, 580);
    //preTravel.setSize(600,400);
    this.setVisible(true);

    //Tips
    preTravel.setToolTipText("演示树的先根遍历");
    poseTravel.setToolTipText("演示树的后根遍历");
    slider_FPS.setToolTipText("控制演示速度");

    //控制按钮
    control.setLayout(new FlowLayout());
    control.add(preTravel);
    control.add(poseTravel);
    control.add(slider_FPS);

    //输入按钮
    inPut.setLayout(new FlowLayout());
    inPut.add(handInput);
    inPut.add(fieldInput);
    inPut.add(text);

    controlAndinput.setLayout(new GridLayout(2, 1));
    controlAndinput.add(inPut);
    controlAndinput.add(control);

    workPad = this.getContentPane();
    workPad.setLayout(new BorderLayout(5, 5));
    workPad.add(controlAndinput, BorderLayout.NORTH);
    //workPad.add(text,BorderLayout.NORTH);
    //workPad.add(function,BorderLayout.NORTH);
    //workPad.add(control,BorderLayout.CENTER);
    workPad.add(drawPanel,BorderLayout.CENTER);
    //workPad.add(shunXu,BorderLayout.SOUTH);
    //this.pack();

    //监听
    preTravel.addActionListener(this);
    poseTravel.addActionListener(this);
    text.addActionListener(this);
    slider_FPS.addChangeListener(this);
  }

    public void actionPerformed(ActionEvent e) {
      if(e.getSource()==text){
        String s=new String();
        s=text.getText();
        tree.creatTree(s);
        table=tree.table;
        drawPanel.setTable(table);
        drawPanel.repaint();
        //drawPanel=new DrawPanel(table);
        //workPad.add(drawPanel,BorderLayout.CENTER);
      }
      if(e.getSource()==preTravel){
       tree.postOrder();


      }
      if(e.getSource()==poseTravel){


      }

    }
    public void stateChanged(ChangeEvent e){


    }





  public static void main(String args[]){
    AppDemo draw=new AppDemo();
    draw.show();
  }

}