1 /*
2 * Copyright (c) 2004, 2010, 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 package sun.awt;
26
27 import java.awt.RenderingHints;
28 import static java.awt.RenderingHints.*;
29 import java.awt.color.ColorSpace;
30 import java.awt.image.*;
31 import java.security.AccessController;
32 import sun.security.action.GetIntegerAction;
33 import com.sun.java.swing.plaf.gtk.GTKConstants.TextDirection;
34 import sun.java2d.opengl.OGLRenderQueue;
35
36 public abstract class UNIXToolkit extends SunToolkit
37 {
38 /** All calls into GTK should be synchronized on this lock */
39 public static final Object GTK_LOCK = new Object();
40
41 private static final int[] BAND_OFFSETS = { 0, 1, 2 };
42 private static final int[] BAND_OFFSETS_ALPHA = { 0, 1, 2, 3 };
43 private static final int DEFAULT_DATATRANSFER_TIMEOUT = 10000;
44
45 private Boolean nativeGTKAvailable;
46 private Boolean nativeGTKLoaded;
47 private BufferedImage tmpImage = null;
48
49 public static int getDatatransferTimeout() {
50 Integer dt = (Integer)AccessController.doPrivileged(
51 new GetIntegerAction("sun.awt.datatransfer.timeout"));
52 if (dt == null || dt <= 0) {
53 return DEFAULT_DATATRANSFER_TIMEOUT;
54 } else {
55 return dt;
56 }
57 }
58
59 /**
60 * Returns true if the native GTK libraries are capable of being
61 * loaded and are expected to work properly, false otherwise. Note
62 * that this method will not leave the native GTK libraries loaded if
63 * they haven't already been loaded. This allows, for example, Swing's
64 * GTK L&F to test for the presence of native GTK support without
65 * leaving the native libraries loaded. To attempt long-term loading
66 * of the native GTK libraries, use the loadGTK() method instead.
67 */
68 @Override
69 public boolean isNativeGTKAvailable() {
70 synchronized (GTK_LOCK) {
71 if (nativeGTKLoaded != null) {
72 // We've already attempted to load GTK, so just return the
73 // status of that attempt.
74 return nativeGTKLoaded;
75
76 } else if (nativeGTKAvailable != null) {
77 // We've already checked the availability of the native GTK
78 // libraries, so just return the status of that attempt.
79 return nativeGTKAvailable;
80
81 } else {
82 boolean success = check_gtk();
83 nativeGTKAvailable = success;
84 return success;
85 }
86 }
87 }
88
89 /**
90 * Loads the GTK libraries, if necessary. The first time this method
91 * is called, it will attempt to load the native GTK library. If
92 * successful, it leaves the library open and returns true; otherwise,
93 * the library is left closed and returns false. On future calls to
94 * this method, the status of the first attempt is returned (a simple
95 * lightweight boolean check, no native calls required).
96 */
97 public boolean loadGTK() {
98 synchronized (GTK_LOCK) {
99 if (nativeGTKLoaded == null) {
100 nativeGTKLoaded = load_gtk();
101 }
102 }
103 return nativeGTKLoaded;
104 }
105
106 /**
107 * Overridden to handle GTK icon loading
108 */
109 protected Object lazilyLoadDesktopProperty(String name) {
110 if (name.startsWith("gtk.icon.")) {
111 return lazilyLoadGTKIcon(name);
112 }
113 return super.lazilyLoadDesktopProperty(name);
114 }
115
116 /**
117 * Load a native Gtk stock icon.
118 *
119 * @param longname a desktop property name. This contains icon name, size
120 * and orientation, e.g. <code>"gtk.icon.gtk-add.4.rtl"</code>
223 int rowStride, int bps, int channels, boolean alpha) {
224 // Reset the stock image to null.
225 tmpImage = null;
226
227 // Create a new BufferedImage based on the data returned from the
228 // JNI call.
229 DataBuffer dataBuf = new DataBufferByte(data, (rowStride * height));
230 // Maybe test # channels to determine band offsets?
231 WritableRaster raster = Raster.createInterleavedRaster(dataBuf,
232 width, height, rowStride, channels,
233 (alpha ? BAND_OFFSETS_ALPHA : BAND_OFFSETS), null);
234 ColorModel colorModel = new ComponentColorModel(
235 ColorSpace.getInstance(ColorSpace.CS_sRGB), alpha, false,
236 ColorModel.TRANSLUCENT, DataBuffer.TYPE_BYTE);
237
238 // Set the local image so we can return it later from
239 // getStockIcon().
240 tmpImage = new BufferedImage(colorModel, raster, false, null);
241 }
242
243 private static native boolean check_gtk();
244 private static native boolean load_gtk();
245 private static native boolean unload_gtk();
246 private native boolean load_gtk_icon(String filename);
247 private native boolean load_stock_icon(int widget_type, String stock_id,
248 int iconSize, int textDirection, String detail);
249
250 private native void nativeSync();
251
252 @Override
253 public void sync() {
254 // flush the X11 buffer
255 nativeSync();
256 // now flush the OGL pipeline (this is a no-op if OGL is not enabled)
257 OGLRenderQueue.sync();
258 }
259
260 /*
261 * This returns the value for the desktop property "awt.font.desktophints"
262 * It builds this by querying the Gnome desktop properties to return
263 * them as platform independent hints.
264 * This requires that the Gnome properties have already been gathered.
265 */
266 public static final String FONTCONFIGAAHINT = "fontconfig/Antialias";
267
268 @Override
269 protected RenderingHints getDesktopAAHints() {
270
319 int micro);
320
321 /**
322 * Returns {@code true} if the GTK+ library is compatible with the given
323 * version.
324 *
325 * @param major
326 * The required major version.
327 * @param minor
328 * The required minor version.
329 * @param micro
330 * The required micro version.
331 * @return {@code true} if the GTK+ library is compatible with the given
332 * version.
333 */
334 public boolean checkGtkVersion(int major, int minor, int micro) {
335 if (loadGTK()) {
336 return gtkCheckVersionImpl(major, minor, micro);
337 }
338 return false;
339 }
340 }
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1 /*
2 * Copyright (c) 2004, 2018, 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 package sun.awt;
26
27 import java.awt.RenderingHints;
28 import static java.awt.RenderingHints.*;
29 import java.awt.color.ColorSpace;
30 import java.awt.image.*;
31 import java.security.AccessController;
32 import java.security.PrivilegedAction;
33 import sun.security.action.GetIntegerAction;
34 import com.sun.java.swing.plaf.gtk.GTKConstants.TextDirection;
35 import sun.java2d.opengl.OGLRenderQueue;
36 import sun.security.action.GetPropertyAction;
37
38 public abstract class UNIXToolkit extends SunToolkit
39 {
40 /** All calls into GTK should be synchronized on this lock */
41 public static final Object GTK_LOCK = new Object();
42
43 private static final int[] BAND_OFFSETS = { 0, 1, 2 };
44 private static final int[] BAND_OFFSETS_ALPHA = { 0, 1, 2, 3 };
45 private static final int DEFAULT_DATATRANSFER_TIMEOUT = 10000;
46
47 // Allowed GTK versions
48 public enum GtkVersions {
49 ANY(0),
50 GTK2(Constants.GTK2_MAJOR_NUMBER),
51 GTK3(Constants.GTK3_MAJOR_NUMBER);
52
53 static class Constants {
54 static final int GTK2_MAJOR_NUMBER = 2;
55 static final int GTK3_MAJOR_NUMBER = 3;
56 }
57
58 final int number;
59
60 GtkVersions(int number) {
61 this.number = number;
62 }
63
64 public static GtkVersions getVersion(int number) {
65 switch (number) {
66 case Constants.GTK2_MAJOR_NUMBER:
67 return GTK2;
68 case Constants.GTK3_MAJOR_NUMBER:
69 return GTK3;
70 default:
71 return ANY;
72 }
73 }
74
75 // major GTK version number
76 public int getNumber() {
77 return number;
78 }
79 };
80
81 private Boolean nativeGTKAvailable;
82 private Boolean nativeGTKLoaded;
83 private BufferedImage tmpImage = null;
84
85 public static int getDatatransferTimeout() {
86 Integer dt = (Integer)AccessController.doPrivileged(
87 new GetIntegerAction("sun.awt.datatransfer.timeout"));
88 if (dt == null || dt <= 0) {
89 return DEFAULT_DATATRANSFER_TIMEOUT;
90 } else {
91 return dt;
92 }
93 }
94
95 /**
96 * Returns true if the native GTK libraries are capable of being
97 * loaded and are expected to work properly, false otherwise. Note
98 * that this method will not leave the native GTK libraries loaded if
99 * they haven't already been loaded. This allows, for example, Swing's
100 * GTK L&F to test for the presence of native GTK support without
101 * leaving the native libraries loaded. To attempt long-term loading
102 * of the native GTK libraries, use the loadGTK() method instead.
103 */
104 @Override
105 public boolean isNativeGTKAvailable() {
106 synchronized (GTK_LOCK) {
107 if (nativeGTKLoaded != null) {
108 // We've already attempted to load GTK, so just return the
109 // status of that attempt.
110 return nativeGTKLoaded;
111
112 } else if (nativeGTKAvailable != null) {
113 // We've already checked the availability of the native GTK
114 // libraries, so just return the status of that attempt.
115 return nativeGTKAvailable;
116
117 } else {
118 boolean success = check_gtk(getEnabledGtkVersion().getNumber());
119 nativeGTKAvailable = success;
120 return success;
121 }
122 }
123 }
124
125 /**
126 * Loads the GTK libraries, if necessary. The first time this method
127 * is called, it will attempt to load the native GTK library. If
128 * successful, it leaves the library open and returns true; otherwise,
129 * the library is left closed and returns false. On future calls to
130 * this method, the status of the first attempt is returned (a simple
131 * lightweight boolean check, no native calls required).
132 */
133 public boolean loadGTK() {
134 synchronized (GTK_LOCK) {
135 if (nativeGTKLoaded == null) {
136 nativeGTKLoaded = load_gtk(getEnabledGtkVersion().getNumber(),
137 isGtkVerbose());
138 }
139 }
140 return nativeGTKLoaded;
141 }
142
143 /**
144 * Overridden to handle GTK icon loading
145 */
146 protected Object lazilyLoadDesktopProperty(String name) {
147 if (name.startsWith("gtk.icon.")) {
148 return lazilyLoadGTKIcon(name);
149 }
150 return super.lazilyLoadDesktopProperty(name);
151 }
152
153 /**
154 * Load a native Gtk stock icon.
155 *
156 * @param longname a desktop property name. This contains icon name, size
157 * and orientation, e.g. <code>"gtk.icon.gtk-add.4.rtl"</code>
260 int rowStride, int bps, int channels, boolean alpha) {
261 // Reset the stock image to null.
262 tmpImage = null;
263
264 // Create a new BufferedImage based on the data returned from the
265 // JNI call.
266 DataBuffer dataBuf = new DataBufferByte(data, (rowStride * height));
267 // Maybe test # channels to determine band offsets?
268 WritableRaster raster = Raster.createInterleavedRaster(dataBuf,
269 width, height, rowStride, channels,
270 (alpha ? BAND_OFFSETS_ALPHA : BAND_OFFSETS), null);
271 ColorModel colorModel = new ComponentColorModel(
272 ColorSpace.getInstance(ColorSpace.CS_sRGB), alpha, false,
273 ColorModel.TRANSLUCENT, DataBuffer.TYPE_BYTE);
274
275 // Set the local image so we can return it later from
276 // getStockIcon().
277 tmpImage = new BufferedImage(colorModel, raster, false, null);
278 }
279
280 private static native boolean check_gtk(int version);
281 private static native boolean load_gtk(int version, boolean verbose);
282 private static native boolean unload_gtk();
283 private native boolean load_gtk_icon(String filename);
284 private native boolean load_stock_icon(int widget_type, String stock_id,
285 int iconSize, int textDirection, String detail);
286
287 private native void nativeSync();
288 private static native int get_gtk_version();
289
290 @Override
291 public void sync() {
292 // flush the X11 buffer
293 nativeSync();
294 // now flush the OGL pipeline (this is a no-op if OGL is not enabled)
295 OGLRenderQueue.sync();
296 }
297
298 /*
299 * This returns the value for the desktop property "awt.font.desktophints"
300 * It builds this by querying the Gnome desktop properties to return
301 * them as platform independent hints.
302 * This requires that the Gnome properties have already been gathered.
303 */
304 public static final String FONTCONFIGAAHINT = "fontconfig/Antialias";
305
306 @Override
307 protected RenderingHints getDesktopAAHints() {
308
357 int micro);
358
359 /**
360 * Returns {@code true} if the GTK+ library is compatible with the given
361 * version.
362 *
363 * @param major
364 * The required major version.
365 * @param minor
366 * The required minor version.
367 * @param micro
368 * The required micro version.
369 * @return {@code true} if the GTK+ library is compatible with the given
370 * version.
371 */
372 public boolean checkGtkVersion(int major, int minor, int micro) {
373 if (loadGTK()) {
374 return gtkCheckVersionImpl(major, minor, micro);
375 }
376 return false;
377 }
378
379 public static GtkVersions getEnabledGtkVersion() {
380 String version = AccessController.doPrivileged(
381 new GetPropertyAction("jdk.gtk.version"));
382 if (version == null) {
383 return GtkVersions.ANY;
384 } else if (version.startsWith("2")) {
385 return GtkVersions.GTK2;
386 } else if("3".equals(version) ){
387 return GtkVersions.GTK3;
388 }
389 return GtkVersions.ANY;
390 }
391
392 public static GtkVersions getGtkVersion() {
393 return GtkVersions.getVersion(get_gtk_version());
394 }
395
396 public static boolean isGtkVerbose() {
397 return AccessController.doPrivileged((PrivilegedAction<Boolean>)()
398 -> Boolean.getBoolean("jdk.gtk.verbose"));
399 }
400 }
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