viewlog.java

元胞自动机

package celluar;

import java.awt.event.*;
import java.awt.*;
/**
 * Title:        Game of Life
 * Description:
 * Copyright:    Copyright (c) 2003
 * Company:      Http://agents.yeah.net
 * @author Keats
 * @version 1.0
 */

public class ViewLog extends Frame  implements Runnable{
  Panel view = new Panel();
  Thread runner1;//定义独立线程
  Graphics gra;//在一个面板view上画图
  int cycles=100;//图中显示的横坐标数目
  int cyclemax;//主程序中定义的历史数据最大长度
  int originx=40;//画图区域原点的坐标
  int originy=20;
  celluar localcell;//主程序的本地拷贝
  Button btnClose = new Button();
  Label label1 = new Label();
  Choice choicelen = new Choice();
  Label label2 = new Label();

  public ViewLog(celluar cl) {
    super("数据走向……");
    localcell=cl;//主程序实例化
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    this.setLayout(null);
    view.setBackground(Color.white);
    view.setBounds(new Rectangle(7, 25, 537, 316));
    btnClose.setLabel("关闭");
    btnClose.setBounds(new Rectangle(352, 354, 80, 25));
    btnClose.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        btnClose_actionPerformed(e);
      }
    });
    this.setBackground(Color.gray);

    this.addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowOpened(WindowEvent e) {
        this_windowOpened(e);
      }
      public void windowClosing(WindowEvent e) {
        this_windowClosing(e);
      }
    });

    choicelen.setBounds(new Rectangle(71, 355, 94, 21));
    choicelen.addItemListener(new java.awt.event.ItemListener() {
      public void itemStateChanged(ItemEvent e) {
        choicelen_itemStateChanged(e);
      }
    });
    for(int i=0;i<20;i++){
       choicelen.addItem(Integer.toString((i+1)*100));//选项从100-2000
    }

    label1.setText("显示长度：");
    label1.setBounds(new Rectangle(6, 360, 60, 12));

    label2.setText("[e-mail]");
    label2.setBounds(new Rectangle(201, 359, 115, 13));
    this.add(btnClose, null);
    this.add(view, null);
    this.add(choicelen, null);
    //this.add(btnRefresh, null);
    this.add(label1, null);
    this.add(label2, null);
    this.pack();


    this.addWindowListener(new java.awt.event.WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        this_windowClosing(e);
      }
    });
    this.add(btnClose, null);
  }
//关闭
  void btnClose_actionPerformed(ActionEvent e) {
    this.hide();
    this.dispose();
  }
  void this_windowClosing(WindowEvent e) {
    this.hide();
    this.dispose();
  }
  //打开
  void this_windowOpened(WindowEvent e) {
    gra=view.getGraphics();
    cyclemax=localcell.cyclemax;//获取参数
    repaint();
    if(runner1==null){
      runner1=new Thread(this);
      runner1.start();
    }
  }

  public void paint(Graphics g) {
    /**@todo: Override this java.awt.Component method*/
    //画图函数
    int width=517-originx-25;
    int height=316-originy;
    int step=localcell.steps;
    int nStart=0;//
    //开始nStart为零，运行一段时间后，图已经超过cycles范围，此时nStart就向后移
    //|__________|____|_________|____
    //0          nStart         nEnd
    int nEnd=cycles;
    if(step-cycles>0){
        //计算需要绘制的历史数据数组中的起始索引
        nStart=step-cycles;
    }
    //清空画图区域
    gra.clearRect(0,0,517,316);

    //设定原点坐标
    int x=0,y=0,y0=height-originy;
    //对设定的要画的横坐标点数循环
   for(int i=0;i<cycles;i++){
      //当前点坐标
      int x1=(int)((i*width)/cycles);
      int y1=(int)(localcell.HistoryData[(i+nStart)%cyclemax]*height/(localcell.size*localcell.size));
      //绘制生存者比例
      if(y1>0){
        gra.setColor(Color.blue);
        gra.drawLine(x+originx,height-y,x1+originx,height-y1);
      }


      //前一点的坐标
      x=x1;
      y=y1;

    }

    //画坐标轴及其说明文字
    gra.setColor(Color.black);
    gra.drawLine(originx,height,width+originx,height);
    gra.drawLine(originx,height,originx,0);
    gra.drawString("时间",width+originx,height);
    gra.drawString("总数",originx+2,originy/2);
    for(int i=0;i<10;i++){
        int x3=(int)(i*width/10)+originx;
        int y3=height;
        gra.drawLine(x3,y3,x3,y3-2);
        String txt;
        if(step>cycles){
          txt=Integer.toString((int)(step-cycles+i*cycles/10));
        }else{
          txt=Integer.toString((int)(i*cycles/10));
        }
        gra.drawString(txt,x3,y3+12);
    }
    for(int i=1;i<=4;i++){
        int x3=originx;
        int y3=(int)((4-i)*height/4);
        gra.drawLine(x3,y3,x3+2,y3);
        String txt=Integer.toString((int)(i*localcell.size*localcell.size/4));
        gra.drawString(txt,x3-30,y3+15);
    }
    gra.drawString("存活者",5,height-originy-15);
    gra.setColor(Color.blue);
    gra.drawLine(2,height-originy-30,originx-5,height-originy-30);
    super.paint(g);
  }

  void choicelen_itemStateChanged(ItemEvent e) {
    cycles=(choicelen.getSelectedIndex()+1)*100;
    repaint();
  }

  public void stop() {
    if (runner1!=null)
    {
      // running = false;
        runner1.stop();
       runner1=null;
    }

  }
  public void run()   {
    while(true){
        repaint();
        try{Thread.sleep(1000);}catch(InterruptedException e){};
    }
  }

}