source: src/main/java/negotiator/onetomany/etc/DemandPlanDrawing.java@ 225

package negotiator.onetomany.etc;

import java.awt.Canvas;
import java.awt.Graphics;
import java.util.HashMap;

import negotiator.onetomany.DemandPlan;
import negotiator.onetomany.Portfolio;
import negotiator.onetomany.Product;


/**
 * @author Faria Nassiri-Mofakham
 *
 */
public class DemandPlanDrawing extends Canvas 
{

        private static final long serialVersionUID = 1L;
        DemandPlan p;

        public DemandPlanDrawing(DemandPlan p2)
        {
                p = p2;
        }


        public void paint(Graphics g) 
        {
                int z = p.getDemandPlan().size();
                int yOffset=50;
                int r=30/z;
                int d=(g.getClipBounds().width-z*2*r)/(z+4); // it is enough to be divided by z+1, but for making the distance smaller, larger numbers are better
                int x = g.getClipBounds().x;//+ d;
                final int xx =x;

                for (Product product : p.getDemandPlan().keySet())
                {
                        Integer q = p.getQuantity(product);

                        System.out.println("For product " + product + ", the quantity I want to draw is: " + q);

                        g.setColor(product.getColor());
                        for (int i=0; i<q; i++)
                        {
                                if (x+2*r+d < g.getClipBounds().width)
                                        x += d;                                                 
                                else
                                {
                                        x=xx+d;
                                        yOffset+=50;
                                }                               
                                g.fillOval(x, g.getClipBounds().y+yOffset, 2*r, 2*r); // it also need to became dynamic

                        }

                        x=xx;
                        yOffset+=50; // no condition for the height ?!
                }

        }


}