surface.java~1~

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package java2d;
import java.awt.*;
import java.awt.image.*;
import java.awt.print.*;
import java.awt.event.*;
import javax.swing.JPanel;
import javax.swing.RepaintManager;
import java.net.*;
import java.util.*;


/**
 * Surface is the base class for the 2d rendering demos.  Demos must
 * implement the render() method. Subclasses for Surface are 
 * AnimatingSurface, ControlsSurface and AnimatingControlsSurface.
 */
public abstract class Surface extends JPanel {

   
    public String perfStr; // PerformanceMonitor
	public String perfStrMa;
	public String perfStrMi;
    public BufferedImage bimg;
	
   
    public String name;              
    public AnimatingSurface animating;

    protected long sleepAmount = 500;
	protected  float max,realdata;

   
    private Toolkit toolkit;
    private boolean perfMonitor, outputPerf;

	protected Image Digits[];

    public Surface() {
		
        setDoubleBuffered(this instanceof AnimatingSurface);
        toolkit = getToolkit();
     /*  name = this.getClass().getName();
       // name = name.substring(name.indexOf(".", 7)+1);
	   name=name.substring(7,name.length());
      */
	 
        try {
            if (System.getProperty("java2demo.perf") != null) {
                perfMonitor = outputPerf = true;
            }
        } catch (Exception ex) { }
        if (this instanceof AnimatingSurface) {
            animating = (AnimatingSurface) this;
        }

		Digits=new Image[12];
		for(int i=0;i<10;i++)
         Digits[i]=loadImage("java2d/digits/"+i+".gif");

         Digits[10]=loadImage("java2d/digits/dot_p.gif");
         Digits[11]=loadImage("java2d/digits/dot_a.gif");
		 
    }

    public void setMonitor(boolean pm) {
        perfMonitor = pm;
    }


    public void setSleepAmount(long amount) {
        sleepAmount = amount;
    }


    public long getSleepAmount() {
        return sleepAmount;
    }

	public Image loadImage(String img){

	URLClassLoader urlLoader = (URLClassLoader)this.getClass().getClassLoader();
	URL fileLoc = urlLoader.findResource(img);
	Image image= this.getToolkit().createImage(fileLoc);
    MediaTracker mt=new MediaTracker(this);
		mt.addImage(image,0);
		try{
			mt.waitForAll();
		}
		catch(Exception e){
			e.printStackTrace();
		}
		return image;
	}

	//parse the data of temperature 
	public int[] parseF(float data){
		int[] c=new int[4];
		String D=""+data;
		int index=D.indexOf('.');
		if (index==1)
		{c[0]=0;c[1]=Integer.parseInt(D.substring(0,index));c[2]=Integer.parseInt(D.substring(index+1,index+2));c[3]=Integer.parseInt(D.substring(index+2,index+3));}
		else if (index==2)
		{c[0]=Integer.parseInt(D.substring(0,1));c[1]=Integer.parseInt(D.substring(1,index));c[2]=Integer.parseInt(D.substring(index+1,index+2));c[3]=Integer.parseInt(D.substring(index+2,index+3));
		}
		return c;
	}

	
    public void drawDigit(Graphics2D g2,int digit, int x,int y)
    {
      g2.drawImage(Digits[digit],x,y,35,40,this);
    }

	public void drawDigit(Graphics2D g2,int digit, int x,int y,int w,int h)
    {
      g2.drawImage(Digits[digit],x,y,w,h,this);
    }





    // ...demos that extend Surface must implement this routine...
    public abstract void render(int w, int h, Graphics2D g2);

      
    public void paint(Graphics g) {

        Dimension d = getSize();
		
        
       
		if(bimg==null){
         
			 bimg = (BufferedImage) createImage(d.width, d.height);
        }
       
		Graphics2D g2 = bimg.createGraphics();
        render(d.width, d.height, g2);
        g2.dispose();

        if (bimg != null)  {
            g.drawImage(bimg, 0, 0, null);
            toolkit.sync();
        }

       if (perfMonitor) {
            LogPerformance();
        }
	 }


   private void LogPerformance() {
       /* if ((frame % REPORTFRAMES) == 0) {
            long end = System.currentTimeMillis();
            long rel = (end - start);
            long tot = (end - orig);
            if (frame == 0) {
                perfStr = name + " " + rel+" ms";
                if (animating == null || animating.thread == null) {
                    frame = -1;     
                }
            } else {
                String s1 = Float.toString((REPORTFRAMES/(rel/1000.0f)));
                s1 = (s1.length() < 4) ? s1.substring(0,s1.length()) : s1.substring(0,4);
				*/
				max=(realdata>max)?realdata:max;
                perfStr = name+":"+realdata;
				perfStrMa=name+".Max:"+max;

          /*  }
            if (outputPerf) {
                System.out.println(perfStr);
            }
            start = end;
        }
        ++frame;
		*/
    }





}