import javax.swing.JFrame;
import java.util.ArrayList;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;

/**
 * Describe class CollectionDisplay here.
 *
 *
 * Created: Mon Apr 11 16:44:41 2011
 *
 * @author <a href="mailto:">Dr. John F. Santore</a>
 * @version 1.0
 */
public class CollectionDisplay extends JFrame {

    private ArrayList myList;
    public int ELEMENT_SIZE = 100;
    public int Y_POS = 75;
    public int BOX_H = 50;
    public int BOX_W = ELEMENT_SIZE;
    public CollectionDisplay() {
	super("CS1 Collection Displayer");
	setSize(400, 200); //wide and short. Magic number are bad I know.
	setVisible(true);
    }


    public void displayCollection(ArrayList l){
	myList = l;
	setSize(100+myList.size()*ELEMENT_SIZE, 200);
	repaint();
    }

    public void paint(Graphics g){
	Color oldColor = g.getColor();
	super.paint(g);
	
	//error checking, only paint of there is something to paint
	if(myList == null)
	    return;
	for (int i = 0; i<myList.size();i++)
	    {
	    g.setColor(Color.BLUE);
	    g.drawRect(i*ELEMENT_SIZE, Y_POS, BOX_W, BOX_H);
	    Object o = myList.get(i);
	    g.setColor(Color.RED);
	    
	    g.drawString(o.toString(), i*ELEMENT_SIZE+2, Y_POS+ i%5*10+10);
	}

    }

   
}