/*
 * Copyright 2010 Red Hat, Inc. 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.
 */

import java.awt.*;
import java.awt.image.*;
import static java.awt.RenderingHints.*;

/*
 * @test
 * @bug 6967436
 * @summary This test check proper rendering of diagonal line when line coordinates are bigger than 16bit integer.
 * @run main Test6967436
 * @author Denis Lila <dlila@redhat.com>, Pavel Tisnovsky <ptisnovs@redhat.com>
 */

// TODO: this test use lines. That's good for now, but it should really use
// Path2Ds as Shapes. That's because lines could be treated as special cases,
// and the code we want to test (in the rendering engine) might not even run.
// So we must use shapes that are as general as possible.
public class Test6967436 extends RenderingEngineTest {

    public void run() {
        // NOTE - the rendering area should be square, not generic rectangle
        Object[] tmp = getGraphics(400, 400);
        BufferedImage bi = (BufferedImage) tmp[0];
        Graphics2D g2 = (Graphics2D) tmp[1];

        g2.setStroke(new BasicStroke(5));
        g2.setRenderingHint(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON);

        g2.drawLine(0, 0, 1<<15, 1<<15);

        // test if two areas (above line and below line) contains only
        // white pixels
        int w = bi.getWidth(), h = bi.getHeight();
        for (int i = 0; i < h; i++) {
            for (int j = i + 10; j < w; j++) {
                if (!(new Color(bi.getRGB(j, i)).equals(Color.white) &&
                            new Color(bi.getRGB(i, j)).equals(Color.white)))
                {
                    throw new RuntimeException(
                            "A non white background pixel was found.\n" +
                            "OverflowTest failed");
                }
            }
        }
    }

    public static void main(String[] argv) {
        new Test6967436().run();
    }
}