Inserimento Scroll

[rangers97]

questo è un progetto per disegnare il frattale di mandelbrot soltanto che quando provo ad inserire lo scroll non va, o meglio non mi compaiono le scrollbar ma il disegno me lo fa

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
import java.awt.Color;
import java.io.*;
import java.util.*;
import javax.swing.JFrame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
public class PixelCanvas extends Canvas {
	
	
	public static Color colore(int c){
	Color f;
    int i = c % 16;
   if(i==0)
  return f=new Color(66, 30, 15);
    if(i==1)
    return f=new Color(25, 7, 26);
    if(i==2)
    return f=new Color(9, 1, 47);
     if(i==3)
   return f=new Color(4, 4, 73);
     if(i==4)
    return f=new Color(0, 7, 100);
     if(i==5)
   return f=new Color(12, 44, 138);
     if(i==6)
    return f=new Color(24, 82, 177);
     if(i==7)
   return f=new Color(57, 125, 209);
     if(i==8)
   return f=new Color(134, 181, 229);
     if(i==9)
    return f=new Color(211, 236, 248);
     if(i==10)
    return f=new Color(241, 233, 191);
     if(i==11)
   return f=new Color(248, 201, 95);
     if(i==12)
   return f=new Color(255, 170, 0);
     if(i==13)
   return f=new Color(204, 128, 0);
     if(i==14)
    return f=new Color(153, 87, 0);
     if(i==15)
    return f=new Color(106, 52, 3);
   return f=new Color(106, 52, 3);
	}
	   
    public static Color colore2(int c){
    	Color f;
if (c < 64) {
  return f=new Color(c * 2, 0, 0);    
} else if (c < 128) {
  return f=new Color  ((((c - 64) * 128) / 126) + 128, 0, 0);    /* 0x0080 to 0x00C0 */
} else if (c < 256) {
  return f=new Color  ((((c - 128) * 62) / 127) + 193, 0, 0);    /* 0x00C1 to 0x00FF */
} else if (c < 512) {
  return f=new Color  (255, (((c - 256) * 62) / 255) + 1, 0);    /* 0x01FF to 0x3FFF */
} else if (c < 1024) {
  return f=new Color (255, (((c - 512) * 63) / 511) + 64, 0);   /* 0x40FF to 0x7FFF */
} else if (c < 2048) {
  return f=new Color (255, (((c - 1024) * 63) / 1023) + 128, 0);   /* 0x80FF to 0xBFFF */
} else if (c < 4096) {
  return f=new Color (255, (((c - 2048) * 63) / 2047) + 192, 0);   /* 0xC0FF to 0xFFFF */
} 
 return f=new Color (255, 255, 0);
 }
	
	 
        public static double[] quad(double a,double b){
        	
        double z=Math.pow(a,2) -Math.pow(b,2);
        double z1=2*a*b;
        
       	double z2[]={z,z1};
       	return z2;
        }
   	
   		public  int funz(double a,double b){
   		double re=a,co=b;
   			a=0;
   			b=0;
   	 int c=0;
   	 while(Math.sqrt(Math.pow(a,2)+Math.pow(b,2))<2 && c<ite){
   	 
   		
   		double v[]=quad(a,b);	
		double z1=(v[0]+re);
   		double z2=(v[1]+co);
   	
   		
   		a=z1;
   		b=z2;
   		c++;
   	   }
   		return c;
  	}
  	Scanner in = new Scanner(System.in);
  	
	public  final int ite=Integer.parseInt(in.next());
    public static final int WIDTH = 1200;
    public static final int HEIGHT= 1200;
    int w=WIDTH/2;
    
    int h=HEIGHT/2;
    
    public void paint(Graphics g) {
        super.paint(g);
        
Color bo;




      for(int i=-h;i<h;i++){
	for(int y=-w;y<w;y++){
	double a=(double)i/(h/2);
	double b=(double)y/(w/2);
		int c=funz(a,b);
		if(c==ite){
		
			g.drawLine(i+h,y+w,i+h,y+w);
	        g.setColor(Color.black);
	    }
        else{
        		g.setColor(colore(c));
        		g.drawLine(i+h,y+w,i+h,y+w);
	           
        }


       }
      }


    
    }
    
    
    
     
 
    public static void main(String[] args) {
        System.out.println("Inserire numero di iterzioni");
        
        JPanel jp=new JPanel();
        JScrollPane pane=new JScrollPane(jp,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);    
        JFrame frame = new JFrame();
        
        frame.add(pane);
       
       
        frame.add(new PixelCanvas() );
       
        
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        frame.setSize(WIDTH, HEIGHT);
   
        
        frame.setVisible(true);
        
        //frame.setContentPane(pane);
       
       
    }
}