// GrowingSquarePanel.java
// JPanel dedicated to drawing a growing square and circle
// Black circle inside a red square
// Both expand and contract together
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;

public class GrowingSquarePanel extends JPanel {
	int sx, sy, sw;
	int cx, cy, d;
	
	public void drawInfo( int sWidth, int sXCoord, int sYCoord ) {
		// square size and placement
		sw = sWidth;
		sx = sXCoord;
		sy = sYCoord;
		// calculate circle size and placement
		d = sw - 10;
		cx = sx + 5;
		cy = sy + 5;

		repaint( );
	}

	public void paintComponent( Graphics g ) {
		super.paintComponent( g );
		// clear the background
		g.setColor( Color.white );
		g.fillRect( 0, 70, 400, 330 );
		// draw the square
		g.setColor( Color.red );
		g.fillRect( sx, sy, sw, sw );
		// draw the circle
		g.setColor( Color.black );
		g.fillOval( cx, cy, d, d );
	}
}