1 /*
2 * Copyright (c) 2011, 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 if (sizes == null || sizes.length < 2) {
228 return toImage(w, h, w, h);
229 }
230
231 BufferedImage[] images = new BufferedImage[sizes.length];
232 int currentImageIndex = 0;
233
234 for (int i = 0; i < sizes.length; i++) {
235 int imageRepWidth = (int) sizes[i].getWidth();
236 int imageRepHeight = (int) sizes[i].getHeight();
237
238 if(imageRepHeight <= w && imageRepHeight <= h){
239 currentImageIndex = i;
240 }
241 images[i] = toImage(w, h, imageRepWidth, imageRepHeight);
242 }
243 return new MultiResolutionBufferedImage(BufferedImage.TYPE_INT_ARGB_PRE,
244 currentImageIndex, images);
245 }
246
247 private BufferedImage toImage(int srcWidth, int srcHeight, int dstWidth, int dstHeight) {
248 final BufferedImage bimg = new BufferedImage(dstWidth, dstHeight, BufferedImage.TYPE_INT_ARGB_PRE);
249 final DataBufferInt dbi = (DataBufferInt)bimg.getRaster().getDataBuffer();
250 final int[] buffer = SunWritableRaster.stealData(dbi, 0);
251 nativeCopyNSImageIntoArray(ptr, buffer, srcWidth, srcHeight, dstWidth, dstHeight);
252 SunWritableRaster.markDirty(dbi);
253 return bimg;
254 }
255
256 /** If nsImagePtr != 0 then scale this NSImage. @return *this* */
257 CImage resize(final double w, final double h) {
258 if (ptr != 0) nativeSetNSImageSize(ptr, w, h);
259 return this;
260 }
261
262 void resizeRepresentations(double w, double h) {
263 if (ptr != 0) nativeResizeNSImageRepresentations(ptr, w, h);
264 }
265 }