package elte.java2_utikalauz5.java2d;

import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;

/**
peldaprogram a boolean-muveletek hasznalatat mutatja be.

@link.forrásfájl {@docRoot}/../data/java2d/src CAG.java
@link.letöltés {@docRoot}/../data/java2d CAG.jar
@since Java 2 Útikalauz programozóknak
*/
class CAG extends Canvas {
    /** Verziószám */
    private final static long serialVersionUID = 15L;

	public void paint (Graphics g) {
		Graphics2D g2 = (Graphics2D) g;

		Ellipse2D kor1 = new Ellipse2D.Float (10.0f, 10.0f, 150.0f, 150.0f);
		Ellipse2D kor2 = new Ellipse2D.Float (100.0f, 10.0f, 250.0f, 150.0f);
		Area kulonbseg = new Area (kor1);
		kulonbseg.subtract (new Area (kor2));

		g2.setColor (Color.blue);
		g2.fill (kulonbseg);
	}

	public static void main (String[] args) {
		Frame f = new Frame ();
		f.add (new CAG ());

		f.addWindowListener (
			new WindowAdapter () {
				public void windowClosing (WindowEvent e) {
					System.exit (0);
				}
			}
		);

		f.setSize (300, 300);
		f.setVisible (true);
	}
}