1 /*
   2  * Copyright (c) 2014, 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
  31  * @summary [macosx] Get MultiResolution image from native system
  32  * @author Alexander Scherbatiy
  33  * @run main NSImageToMultiResolutionImageTest
  34  */
  35 
  36 public class NSImageToMultiResolutionImageTest {
  37 
  38     public static void main(String[] args) throws Exception {
  39 
  40         if (OSInfo.getOSType() != OSInfo.OSType.MACOSX) {
  41             return;
  42         }
  43 
  44         String icon = "NSImage://NSApplicationIcon";
  45         final Image image = Toolkit.getDefaultToolkit().getImage(icon);
  46 
  47         if (!(image instanceof MultiResolutionImage)) {
  48             throw new RuntimeException("Icon does not have resolution variants!");
  49         }
  50 
  51         MultiResolutionImage multiResolutionImage = (MultiResolutionImage) image;
  52 
  53         int width = 0;
  54         int height = 0;
  55 
  56         for (Image resolutionVariant : multiResolutionImage.getResolutionVariants()) {
  57             int rvWidth = resolutionVariant.getWidth(null);
  58             int rvHeight = resolutionVariant.getHeight(null);
  59             if (rvWidth < width || rvHeight < height) {
  60                 throw new RuntimeException("Resolution variants are not sorted!");
  61             }
  62             width = rvWidth;
  63             height = rvHeight;
  64         }
  65     }
  66 }