// Fig. 14.2: CustomPanel2.java
// A customized JPanel class.
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class CustomPanel2 extends JPanel {
   public final static int CIRCLE = 1, SQUARE = 2;
   private int shape;
	private int oldQuadrant;


	public CustomPanel2 ()
	{
		oldQuadrant = 0;

		addMouseMotionListener(
			new MouseMotionAdapter ()
			{
				public void mouseMoved (MouseEvent event)
				{
					int quadrant = 0;
					int x = event.getX();
					int y = event.getY();
					int wid = getWidth ();
					int hgt = getHeight ();

					if (x < wid/2 && y < hgt/2)
						quadrant = 1;
					else if (x < wid/2)
						quadrant = 2;
					else if (y < hgt/2)
						quadrant = 3;
					else 
						quadrant = 4;

					if (quadrant != oldQuadrant)
					{
						drawQ (oldQuadrant, getBackground() );
						drawQ (quadrant, Color.BLACK );
						oldQuadrant = quadrant;
					}
				}
			}
				);


		addMouseListener (
			new MouseAdapter ()
		{
			public void mouseClicked (MouseEvent event)
			{
				Graphics g = getGraphics ();
				int x = event.getX();
				int y = event.getY();
				g.drawLine (0,0,x,y);
			}
		}
			);
	}

   // use shape to draw an oval or rectangl
   public void paintComponent( Graphics g )
   {
      super.paintComponent( g );

	   drawQ (g, oldQuadrant, Color.BLACK );

      /*if ( shape == CIRCLE )
         g.fillOval( 50, 10, 60, 60 );
      else if ( shape == SQUARE )
         g.fillRect( 50, 10, 60, 60 );
		 */
   }

   // set shape value and repaint CustomPanel2
   public void draw( int shapeToDraw )
   {
      shape = shapeToDraw;
      repaint();
   }

	public void drawQ (int quad, Color c)
	{
		Graphics g = getGraphics ();
		int wid = getWidth ();
		int hgt = getHeight ();
		int sx = 0, sy = 0; 
		int	ex = wid/2 - 10, ey = hgt/2 - 10;
		// System.out.println("OldQuad: " + quad + ", " +  wid + ", " + hgt);

		if (quad == 1)
		{
			sx = 5;
			sy = 5;
		}
		else if (quad == 2)
		{
			sx = 5;
			sy = hgt/2 + 5;
		}
		else if (quad == 3)
		{
			sx = wid/2 + 5;
			sy = 5;
		}
		else if (quad == 4)
		{
			sx = wid/2 + 5;
			sy = hgt/2 + 5;
		}
		g.setColor (c);
		if ( shape == CIRCLE )
			g.fillOval( sx, sy, ex, ey );
		else if ( shape == SQUARE )
			g.fillRect( sx, sy, ex, ey );

		//g.fillOval (sx, sy, ex, ey);

	}

	public void drawQ (Graphics g, int quad, Color c)
	{
		//Graphics g = getGraphics ();
		int wid = getWidth ();
		int hgt = getHeight ();
		int sx = 0, sy = 0; 
		int	ex = wid/2 - 10, ey = hgt/2 - 10;
		// System.out.println("OldQuad: " + quad + ", " +  wid + ", " + hgt);

		if (quad == 1)
		{
			sx = 5;
			sy = 5;
		}
		else if (quad == 2)
		{
			sx = 5;
			sy = hgt/2 + 5;
		}
		else if (quad == 3)
		{
			sx = wid/2 + 5;
			sy = 5;
		}
		else if (quad == 4)
		{
			sx = wid/2 + 5;
			sy = hgt/2 + 5;
		}
		g.setColor (c);
		if ( shape == CIRCLE )
			g.fillOval( sx, sy, ex, ey );
		else if ( shape == SQUARE )
			g.fillRect( sx, sy, ex, ey );

		//g.fillOval (sx, sy, ex, ey);

	}

} // end class CustomPanel2



/**************************************************************************
 * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and               *
 * Prentice Hall. All Rights Reserved.                                    *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 *************************************************************************/