import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.Graphics2D;
import javax.swing.*;
import chapman.graphics.JCanvas;

public class DrawBox extends JCanvas implements MouseListener, MouseMotionListener, ActionListener {

	final static int max_index=10;
	protected int oldx, oldy, activeIndex=-1, p=0, last_index;
	static Rect rect[] = new Rect[max_index];
	
	DrawBox() {
		rect[0] = new ColoredRect(0,0,200,200);
		rect[1] = new DrawableRect(100,100,300,300);
		rect[2] = new ColoredRect(200,200,400,400, Color.blue, Color.red);
		last_index=3;
	}		

	public void addBox() {
		if(last_index<max_index) {
			rect[last_index] = new ColoredRect(100,100,300,300);
			last_index++;
		}
		repaint();
	}
	
	public void paint(Graphics g) {
		int	i;
		Graphics2D g2=(Graphics2D) g;
		for(i=0; i<last_index; i++) {
			rect[i].draw(g2);	
			g2.drawString(rect[i].toString(),rect[i].getxCenter(),rect[i].getyCenter());
		}
		System.out.println("print"+p++);
	}
	
	public void mouseDragged(MouseEvent e) {
		if(activeIndex>=0) {
			rect[activeIndex].move(e.getX()-oldx, e.getY()-oldy);
			oldx=e.getX();
			oldy=e.getY();
			System.out.println("in mouse dragged in("+oldx+":"+oldy+")");
			repaint();
		}		
	}

	public void mouseMoved(MouseEvent e) { }
	
	public void mousePressed(MouseEvent e) {
		int	i;
		for(i=0; i<last_index; i++)
			if(rect[i].isInside(e.getX(), e.getY())) break;
		if(i<last_index) {
			oldx=e.getX();
			oldy=e.getY();
			activeIndex=i;
			rect[activeIndex].ChangeColor(Color.blue, Color.red);
			repaint();
		}	
		System.out.println("in mouse pressed in("+oldx+":"+oldy+")");
	}

	public void mouseReleased(MouseEvent e) {
		if(activeIndex>=0) {
			rect[activeIndex].ChangeColor(Color.red, Color.blue);
			activeIndex=-1;
			repaint();
		}	
		System.out.println("in mouse released in("+oldx+":"+oldy+")");
	}

	public void mouseEntered(MouseEvent e) {}

	public void mouseExited(MouseEvent e) {}

	public void mouseClicked(MouseEvent e) {}

	public void actionPerformed(ActionEvent e) {
		if(e.getActionCommand() == "Add Box!") {
			System.out.println("Add Box! Action occurred");
			addBox();
		}	
		else if(e.getActionCommand() == "Delete Box!") {
			System.out.println("Delete Box! Action occurred");
			
		}	
	}
	
	public static void main(String s[]) {
		MyWindowListener l = new MyWindowListener();
		DrawBox box = new DrawBox();
		JFrame f = new JFrame("Draw Box...");
		JPanel p1 = new JPanel();
		JButton b1 = new JButton("Add Box!");
		JButton b2 = new JButton("Delete Box!");

		b1.addActionListener(box);
		b2.addActionListener(box);
		box.addMouseListener(box);
		box.addMouseMotionListener(box);
		p1.add(b1);
		p1.add(b2);
		f.addWindowListener(l);
		f.getContentPane().add(p1, BorderLayout.SOUTH);
		f.getContentPane().add(box, BorderLayout.CENTER);
		f.pack();
		f.setSize(500,500);
		f.setVisible(true);
	}
}

class MyWindowListener extends WindowAdapter {
	public void windowClosing(WindowEvent e) {
		System.exit(0);
	}
}