/*
* Copyright ( c ) 2009 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
/**
* @ author chrisn @ google . com ( Chris Nokleberg )
* @ author yamauchi @ google . com ( Hiroshi Yamauchi )
*/
public class ThinLineTest {
private static final int PIXEL = 381 ;
public static void main(String[] args) throws Exception {
BufferedImage image = new BufferedImage(200 , 200 , BufferedImage.TYPE_INT_RGB);
Graphics2D g = image.createGraphics();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setPaint(Color.WHITE);
g.fill(new Rectangle(image.getWidth(), image.getHeight()));
g.scale(0 .5 / PIXEL, 0 .5 / PIXEL);
g.setPaint(Color.BLACK);
g.setStroke(new BasicStroke(PIXEL));
g.draw(new Ellipse2D.Double (PIXEL * 50 , PIXEL * 50 , PIXEL * 300 , PIXEL * 300 ));
// To visually check it
//ImageIO.write(image, "PNG", new File(args[0]));
boolean nonWhitePixelFound = false ;
for (int x = 0 ; x < 200 ; ++x) {
if (image.getRGB(x, 100 ) != Color.WHITE.getRGB()) {
nonWhitePixelFound = true ;
break ;
}
}
if (!nonWhitePixelFound) {
throw new RuntimeException("The thin line disappeared." );
}
}
}
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