1 /* 2 * Copyright (c) 2011, 2012, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.lwawt.macosx; 27 28 import java.awt.*; 29 import java.awt.geom.Dimension2D; 30 import java.awt.image.*; 31 32 import java.util.Arrays; 33 import java.util.List; 34 import sun.awt.image.MultiResolutionImage; 35 import sun.awt.image.MultiResolutionBufferedImage; 36 37 import sun.awt.image.SunWritableRaster; 38 39 public class CImage extends CFRetainedResource { 40 private static native long nativeCreateNSImageFromArray(int[] buffer, int w, int h); 41 private static native long nativeCreateNSImageFromArrays(int[][] buffers, int w[], int h[]); 42 private static native long nativeCreateNSImageFromFileContents(String file); 43 private static native long nativeCreateNSImageOfFileFromLaunchServices(String file); 44 private static native long nativeCreateNSImageFromImageName(String name); 45 private static native long nativeCreateNSImageFromIconSelector(int selector); 46 private static native void nativeCopyNSImageIntoArray(long image, int[] buffer, int sw, int sh, int dw, int dh); 47 private static native Dimension2D nativeGetNSImageSize(long image); 48 private static native void nativeSetNSImageSize(long image, double w, double h); 49 private static native void nativeResizeNSImageRepresentations(long image, double w, double h); 50 private static native Dimension2D[] nativeGetNSImageRepresentationSizes(long image, double w, double h); 51 52 static Creator creator = new Creator(); 53 static Creator getCreator() { 54 return creator; 55 } 56 57 public static class Creator { 58 Creator() { } 59 60 // This is used to create a CImage with an NSImage pointer. It MUST be a CFRetained 61 // NSImage, and the CImage takes ownership of the non-GC retain. If callers need the 62 // NSImage themselves, they MUST call retain on the NSImage themselves. 63 public BufferedImage createImageUsingNativeSize(final long image) { 64 if (image == 0) return null; 65 final Dimension2D size = nativeGetNSImageSize(image); 66 return createBufferedImage(image, size.getWidth(), size.getHeight()); 67 } 68 69 // the width and height passed in as a parameter could differ than the width and the height of the NSImage (image), in that case, the image will be scaled 70 BufferedImage createBufferedImage(long image, double width, double height) { 71 if (image == 0) throw new Error("Unable to instantiate CImage with null native image reference."); 72 return createImageWithSize(image, width, height); 73 } 74 75 public BufferedImage createImageWithSize(final long image, final double width, final double height) { 76 final CImage img = new CImage(image); 77 img.resize(width, height); 78 return img.toImage(); 79 } 80 81 // This is used to create a CImage that represents the icon of the given file. 82 public BufferedImage createImageOfFile(final String file, final int width, final int height) { 83 return createBufferedImage(nativeCreateNSImageOfFileFromLaunchServices(file), width, height); 84 } 85 86 public BufferedImage createImageFromFile(final String file, final double width, final double height) { 87 final long image = nativeCreateNSImageFromFileContents(file); 88 nativeSetNSImageSize(image, width, height); 89 return createBufferedImage(image, width, height); 90 } 91 92 public BufferedImage createSystemImageFromSelector(final String iconSelector, final int width, final int height) { 93 return createBufferedImage(nativeCreateNSImageFromIconSelector(getSelectorAsInt(iconSelector)), width, height); 94 } 95 96 public Image createImageFromName(final String name, final int width, final int height) { 97 return createBufferedImage(nativeCreateNSImageFromImageName(name), width, height); 98 } 99 100 public Image createImageFromName(final String name) { 101 return createImageUsingNativeSize(nativeCreateNSImageFromImageName(name)); 102 } 103 104 private static int[] imageToArray(Image image, boolean prepareImage) { 105 if (image == null) return null; 106 107 if (prepareImage && !(image instanceof BufferedImage)) { 108 final MediaTracker mt = new MediaTracker(new Label()); 109 final int id = 0; 110 mt.addImage(image, id); 111 112 try { 113 mt.waitForID(id); 114 } catch (InterruptedException e) { 115 return null; 116 } 117 118 if (mt.isErrorID(id)) { 119 return null; 120 } 121 } 122 123 int w = image.getWidth(null); 124 int h = image.getHeight(null); 125 126 if (w < 0 || h < 0) { 127 return null; 128 } 129 130 BufferedImage bimg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE); 131 Graphics2D g2 = bimg.createGraphics(); 132 g2.setComposite(AlphaComposite.Src); 133 g2.drawImage(image, 0, 0, null); 134 g2.dispose(); 135 136 return ((DataBufferInt)bimg.getRaster().getDataBuffer()).getData(); 137 } 138 139 public CImage createFromImageImmediately(final Image image) { 140 int[] buffer = imageToArray(image, false); 141 142 if (buffer == null) { 143 return null; 144 } 145 146 return new CImage(nativeCreateNSImageFromArray(buffer, image.getWidth(null), 147 image.getHeight(null))); 148 } 149 150 // This is used to create a CImage from a Image 151 public CImage createFromImage(final Image image) { 152 if (image instanceof MultiResolutionImage) { 153 List<Image> resolutionVariants 154 = ((MultiResolutionImage) image).getResolutionVariants(); 155 return createFromImages(resolutionVariants); 156 } 157 158 int[] buffer = imageToArray(image, true); 159 if (buffer == null) { 160 return null; 161 } 162 return new CImage(nativeCreateNSImageFromArray(buffer, image.getWidth(null), image.getHeight(null))); 163 } 164 165 public CImage createFromImages(List<Image> images) { 166 if (images == null || images.isEmpty()) { 167 return null; 168 } 169 170 int num = images.size(); 171 172 int[][] buffers = new int[num][]; 173 int[] w = new int[num]; 174 int[] h = new int[num]; 175 176 num = 0; 177 178 for (Image img : images) { 179 buffers[num] = imageToArray(img, true); 180 if (buffers[num] == null) { 181 // Unable to process the image 182 continue; 183 } 184 w[num] = img.getWidth(null); 185 h[num] = img.getHeight(null); 186 num++; 187 } 188 189 if (num == 0) { 190 return null; 191 } 192 193 return new CImage(nativeCreateNSImageFromArrays( 194 Arrays.copyOf(buffers, num), 195 Arrays.copyOf(w, num), 196 Arrays.copyOf(h, num))); 197 } 198 199 static int getSelectorAsInt(final String fromString) { 200 final byte[] b = fromString.getBytes(); 201 final int len = Math.min(b.length, 4); 202 int result = 0; 203 for (int i = 0; i < len; i++) { 204 if (i > 0) result <<= 8; 205 result |= (b[i] & 0xff); 206 } 207 return result; 208 } 209 } 210 211 CImage(long nsImagePtr) { 212 super(nsImagePtr, true); 213 } 214 215 /** @return A MultiResolution image created from nsImagePtr, or null. */ 216 private BufferedImage toImage() { 217 if (ptr == 0) return null; 218 219 final Dimension2D size = nativeGetNSImageSize(ptr); 220 final int w = (int)size.getWidth(); 221 final int h = (int)size.getHeight(); 222 223 Dimension2D[] sizes 224 = nativeGetNSImageRepresentationSizes(ptr, 225 size.getWidth(), size.getHeight()); 226 227 BufferedImage baseImage = toImage(w, h, w, h); 228 229 return sizes == null || sizes.length < 2 ? baseImage 230 : new MultiResolutionBufferedImage(baseImage, sizes, 231 (width, height) -> toImage(w, h, width, height)); 232 } 233 234 private BufferedImage toImage(int srcWidth, int srcHeight, int dstWidth, int dstHeight) { 235 final BufferedImage bimg = new BufferedImage(dstWidth, dstHeight, BufferedImage.TYPE_INT_ARGB_PRE); 236 final DataBufferInt dbi = (DataBufferInt)bimg.getRaster().getDataBuffer(); 237 final int[] buffer = SunWritableRaster.stealData(dbi, 0); 238 nativeCopyNSImageIntoArray(ptr, buffer, srcWidth, srcHeight, dstWidth, dstHeight); 239 SunWritableRaster.markDirty(dbi); 240 return bimg; 241 } 242 243 /** If nsImagePtr != 0 then scale this NSImage. @return *this* */ 244 CImage resize(final double w, final double h) { 245 if (ptr != 0) nativeSetNSImageSize(ptr, w, h); 246 return this; 247 } 248 249 void resizeRepresentations(double w, double h) { 250 if (ptr != 0) nativeResizeNSImageRepresentations(ptr, w, h); 251 } 252 }