1 /*
   2  * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.awt.Image;
  25 import java.awt.Toolkit;
  26 import sun.awt.OSInfo;
  27 import sun.awt.image.MultiResolutionImage;
  28 /*
  29  * @test
  30  * @bug 8033534 8035069
  31  * @summary [macosx] Get MultiResolution image from native system
  32  * @author Alexander Scherbatiy
  33  * @modules java.desktop/sun.awt
  34  *          java.desktop/sun.awt.image
  35  * @run main NSImageToMultiResolutionImageTest
  36  */
  37 
  38 public class NSImageToMultiResolutionImageTest {
  39 
  40     public static void main(String[] args) throws Exception {
  41 
  42         if (OSInfo.getOSType() != OSInfo.OSType.MACOSX) {
  43             return;
  44         }
  45 
  46         String icon = "NSImage://NSApplicationIcon";
  47         final Image image = Toolkit.getDefaultToolkit().getImage(icon);
  48 
  49         if (!(image instanceof MultiResolutionImage)) {
  50             throw new RuntimeException("Icon does not have resolution variants!");
  51         }
  52 
  53         MultiResolutionImage multiResolutionImage = (MultiResolutionImage) image;
  54 
  55         int width = 0;
  56         int height = 0;
  57 
  58         for (Image resolutionVariant : multiResolutionImage.getResolutionVariants()) {
  59             int rvWidth = resolutionVariant.getWidth(null);
  60             int rvHeight = resolutionVariant.getHeight(null);
  61             if (rvWidth < width || rvHeight < height) {
  62                 throw new RuntimeException("Resolution variants are not sorted!");
  63             }
  64             width = rvWidth;
  65             height = rvHeight;
  66         }
  67     }
  68 }