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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * 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.

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import java.awt.Color;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.geom.Dimension2D;

import java.awt.image.BufferedImage;

import sun.awt.image.MultiResolutionCachedImage;

/**

 * @test

 * @bug 8132123

 * @author Alexander Scherbatiy

 * @summary MultiResolutionCachedImage unnecessarily creates base image to get

 *          its size

 * @modules java.desktop/sun.awt.image

 * @run main MultiResolutionCachedImageTest

 */

public class MultiResolutionCachedImageTest {

    private static final Color TEST_COLOR = Color.BLUE;

    public static void main(String[] args) {

        Image image = new TestMultiResolutionCachedImage(100);

        image.getWidth(null);

        image.getHeight(null);

        image.getProperty("comment", null);

        int scaledSize = 50;

        Image scaledImage = image.getScaledInstance(scaledSize, scaledSize,

                Image.SCALE_SMOOTH);

        if (!(scaledImage instanceof BufferedImage)) {

            throw new RuntimeException("Wrong scaled image!");

        }

        BufferedImage buffScaledImage = (BufferedImage) scaledImage;

        if (buffScaledImage.getWidth() != scaledSize

                || buffScaledImage.getHeight() != scaledSize) {

            throw new RuntimeException("Wrong scaled image!");

        }

        if (buffScaledImage.getRGB(scaledSize / 2, scaledSize / 2) != TEST_COLOR.getRGB()) {

            throw new RuntimeException("Wrong scaled image!");

        }

    }

    private static Dimension2D getDimension(int size) {

        return new Dimension(size, size);

    }

    private static Dimension2D[] getSizes(int size) {

        return new Dimension2D[]{getDimension(size), getDimension(2 * size)};

    }

    private static Image createImage(int width, int height) {

        BufferedImage buffImage = new BufferedImage(width, height,

                BufferedImage.TYPE_INT_RGB);

        Graphics g = buffImage.createGraphics();

        g.setColor(TEST_COLOR);

        g.fillRect(0, 0, width, height);

        return buffImage;

    }

    private static class TestMultiResolutionCachedImage

            extends MultiResolutionCachedImage {

        private final int size;

        public TestMultiResolutionCachedImage(int size) {

            super(size, size, getSizes(size), (w, h) -> createImage(w, h));

            this.size = size;

        }

        @Override

            if (width == size || height == size) {

                throw new RuntimeException("Base image is requested!");

            }

            return super.getResolutionVariant(width, height);

        }

        @Override

        protected Image getBaseImage() {

            throw new RuntimeException("Base image is used");

        }

    }

}