//  Scott DeRuiter        3/6/2003
//  CustomButton.java
//  A simple "button" that reacts when pressed, implementing a 
//  MouseListener in a Swing Applet.
//	3/13/2013 Greenstein: changed from applet to JFrame

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;


public class CustomButton implements MouseListener 
{

   private int xpos, ypos, buttonx, buttony, size;
   private boolean button1pressed;
   
   private JFrame frame;
   private MyPanel canvas;

   public CustomButton ()    
   {
	xpos = ypos = 0;
	buttonx = buttony = 30;
	size = 100;
	button1pressed = false;
   }
   
   public static void main(String[] args) 
   {
   	CustomButton cb = new CustomButton();
   	cb.Run();
   }

   public void Run() 
   {
	// Create a frame to hold everything
	frame = new JFrame ("CustomButton");
	frame.setSize(500, 500);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	//frame.setBackground(Color.black);	// only needed if frame is larger than panel
		
	// Define panel to draw on
	canvas = new MyPanel();		// create a panel to draw on
      	canvas.setBackground(Color.lightGray);
	canvas.addMouseListener(this);	// connects the MouseListerner to the panel window
		
	// Put frame together
	frame.getContentPane().add(canvas);	// puts panel on frame
	frame.setVisible(true);
    }
   
   
   class MyPanel extends JPanel 
   {

        public void paintComponent(Graphics g) 
        {
		super.paintComponent(g);
		PlaceCircleButton ( g );
      	}

	public void PlaceCircleButton ( Graphics g ) 
    	{
		g.setColor ( Color.white );
		g.fillOval ( buttonx - 5, buttony - 5, size + 10, size + 10 );
		if ( button1pressed )   
        	{
			g.setColor ( Color.red );
			int choice = (int)( Math.random() * 5 + 1 );
			switch ( choice )   
            		{
				case 1:  g.drawString ( "HEY!!!", 200, 90 );    break;
				case 2:  g.drawString ( "YIKES????", 200, 90 );    break;
				case 3:  g.drawString ( "Watch it, buster!", 200, 90 );    break;
				case 4:  g.drawString ( "That Hurts!!", 200, 90 );    break;
				default: g.drawString ( "Try that again, buster!", 200, 90 );    break;
			}
		}
		else
			g.setColor ( Color.gray );
		g.fillOval ( buttonx, buttony, size, size );
		g.setColor ( Color.blue );
		g.fillOval ( buttonx + 5, buttony + 5, size - 10, size - 10 );
	}
   }

   public void mouseClicked ( MouseEvent e )   {}

   public void mousePressed ( MouseEvent e )    
   { 
	xpos = e.getX();
	ypos = e.getY();
	if ( Math.sqrt ((xpos - 80)*(xpos - 80) + (ypos - 80)*(ypos - 80)) < 50 )   
    	{
		buttonx = 33;
		buttony = 33;
		size = 100;
		button1pressed = true;
		canvas.repaint ( );
	}
   }
	
   public void mouseReleased ( MouseEvent e )   
   {
	buttonx = 30;
	buttony = 30;
	size = 100;
	button1pressed = false;
	canvas.repaint ( );
   }

   public void mouseEntered ( MouseEvent e )   {}

   public void mouseExited ( MouseEvent e )    {}
}