/**
 * MousePanel provides the user with a simplified paint program.
 *
 * @author Devin Gray
 * @version April 15, 2016 
 */
import java.util.ArrayList;

import javax.swing.JPanel;

import java.awt.Graphics;
import java.awt.Color;
import java.awt.Dimension;

import java.awt.event.MouseMotionListener;
import java.awt.event.MouseEvent;

public class MousePanel extends JPanel implements MouseMotionListener
{
    private ArrayList<Dimension> points;

    MousePanel()
    {
        setBackground(Color.CYAN);
        addMouseMotionListener(this);
        points = new ArrayList<Dimension>();
    }
    
    public void mouseMoved (MouseEvent evt)
    {
        int x = evt.getX();
        int y = evt.getY();
        points.add(new Dimension(x,y));
        repaint();
    }
    
    public void mouseDragged (MouseEvent evt)
    {
        /*
        int x = evt.getX();
        int y = evt.getY();
        points.add(new Dimension(x,y));
        repaint();
        */
    }

    public void paintComponent (Graphics g)
    {
        int x;
        int y;
        Dimension previous = null;
        
        super.paintComponent(g);
        for (Dimension d: points)
        {
            x = (int) d.getWidth();
            y = (int) d.getHeight();
            if(previous != null)
            {
                //draw line
                int x1 = (int) previous.getWidth();
                int y1 = (int) previous.getHeight();
                g.drawLine(x1, y1, x, y);
                g.drawOval(x, y, 10, 10);
                
            }
            previous = d;
            //g.drawLine(x - 15, y, x + 15, y);
            //g.drawLine(x, y - 5, x, y + 5);
            g.drawOval(x, y, 10, 10);
        }
    }
}