/*
* @(#)BullsEye.java 1.11 99/09/07
*
* Copyright (c) 1998, 1999 by Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
package demos.Colors;
import java.awt.*;
import java.awt.geom.Ellipse2D;
import Surface;
/**
* Creating colors with an alpha value.
*/
public class BullsEye extends Surface {
public BullsEye() {
setBackground(Color.white);
}
public void render(int w, int h, Graphics2D g2) {
Color reds[] = { Color.red.darker(), Color.red };
for (int N = 0; N < 18; N++) {
float i = (N + 2) / 2.0f;
float x = (float) (5+i*(w/2/10));
float y = (float) (5+i*(h/2/10));
float ew = (w-10)-(i*w/10);
float eh = (h-10)-(i*h/10);
float alpha = (N == 0) ? 0.1f : 1.0f / (19.0f - N);
if ( N >= 16 )
g2.setColor(reds[N-16]);
else
g2.setColor(new Color(0f, 0f, 0f, alpha));
g2.fill(new Ellipse2D.Float(x,y,ew,eh));
}
}
public static void main(String s[]) {
createDemoFrame(new BullsEye());
}
}
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