1 /*
2 * Copyright (c) 1997, 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.java2d;
27
28 import java.awt.AWTError;
29 import java.awt.Color;
30 import java.awt.Font;
31 import java.awt.Graphics2D;
32 import java.awt.GraphicsConfiguration;
33 import java.awt.GraphicsDevice;
34 import java.awt.GraphicsEnvironment;
35 import java.awt.Insets;
36 import java.awt.Rectangle;
37 import java.awt.Toolkit;
38 import java.awt.font.TextAttribute;
39 import java.awt.image.BufferedImage;
40 import java.awt.peer.ComponentPeer;
41 import java.io.BufferedReader;
42 import java.io.File;
43 import java.io.FileInputStream;
44 import java.io.FilenameFilter;
45 import java.io.InputStreamReader;
46 import java.io.IOException;
47 import java.text.AttributedCharacterIterator;
48 import java.util.ArrayList;
49 import java.util.HashSet;
50 import java.util.Iterator;
51 import java.util.Locale;
52 import java.util.Map;
53 import java.util.NoSuchElementException;
54 import java.util.Set;
55 import java.util.StringTokenizer;
56 import java.util.TreeMap;
57 import java.util.Vector;
58 import java.util.concurrent.ConcurrentHashMap;
59 import sun.awt.AppContext;
60 import sun.awt.DisplayChangedListener;
61 import sun.awt.FontConfiguration;
62 import sun.awt.SunDisplayChanger;
63 import sun.font.CompositeFontDescriptor;
64 import sun.font.Font2D;
65 import sun.font.FontManager;
66 import sun.font.FontManagerFactory;
67 import sun.font.FontManagerForSGE;
68 import sun.font.NativeFont;
69
70 /**
71 * This is an implementation of a GraphicsEnvironment object for the
72 * default local GraphicsEnvironment.
73 *
74 * @see GraphicsDevice
75 * @see GraphicsConfiguration
76 */
77 public abstract class SunGraphicsEnvironment extends GraphicsEnvironment
78 implements DisplayChangedListener {
79
80 public static boolean isOpenSolaris;
81 private static Font defaultFont;
82
83 public SunGraphicsEnvironment() {
84 java.security.AccessController.doPrivileged(
85 new java.security.PrivilegedAction() {
86 public Object run() {
87 String version = System.getProperty("os.version", "0.0");
88 try {
89 float ver = Float.parseFloat(version);
90 if (ver > 5.10f) {
91 File f = new File("/etc/release");
92 FileInputStream fis = new FileInputStream(f);
93 InputStreamReader isr
94 = new InputStreamReader(fis, "ISO-8859-1");
95 BufferedReader br = new BufferedReader(isr);
96 String line = br.readLine();
97 if (line.indexOf("OpenSolaris") >= 0) {
98 isOpenSolaris = true;
99 } else {
100 /* We are using isOpenSolaris as meaning
101 * we know the Solaris commercial fonts aren't
102 * present. "Solaris Next" (03/10) did not
103 * include these even though its was not
104 * OpenSolaris. Need to revisit how this is
105 * handled but for now as in 6ux, we'll use
106 * the test for a standard font resource as
107 * being an indicator as to whether we need
108 * to treat this as OpenSolaris from a font
109 * config perspective.
110 */
111 String courierNew =
112 "/usr/openwin/lib/X11/fonts/TrueType/CourierNew.ttf";
113 File courierFile = new File(courierNew);
114 isOpenSolaris = !courierFile.exists();
115 }
116 fis.close();
117 }
118 } catch (Exception e) {
119 }
120
121 /* Establish the default font to be used by SG2D etc */
122 defaultFont = new Font(Font.DIALOG, Font.PLAIN, 12);
123
124 return null;
125 }
126 });
127 }
128
129 protected GraphicsDevice[] screens;
130
131 /**
132 * Returns an array of all of the screen devices.
133 */
134 public synchronized GraphicsDevice[] getScreenDevices() {
135 GraphicsDevice[] ret = screens;
136 if (ret == null) {
137 int num = getNumScreens();
138 if (num == 0) {
139 throw new AWTError("no screen devices");
140 }
141 ret = new GraphicsDevice[num];
142 for (int i = 0; i < num; i++) {
143 ret[i] = makeScreenDevice(i);
144 }
145 screens = ret;
146 }
147 return ret;
148 }
149
150 /**
151 * Returns the number of screen devices of this graphics environment.
152 *
153 * @return the number of screen devices of this graphics environment
154 */
155 protected abstract int getNumScreens();
156
157 /**
158 * Create and return the screen device with the specified number. The
159 * device with number <code>0</code> will be the default device (returned
160 * by {@link #getDefaultScreenDevice()}.
161 *
162 * @param screennum the number of the screen to create
163 *
164 * @return the created screen device
165 */
166 protected abstract GraphicsDevice makeScreenDevice(int screennum);
167
168 /**
169 * Returns the default screen graphics device.
170 */
171 public GraphicsDevice getDefaultScreenDevice() {
172 return getScreenDevices()[0];
173 }
174
175 /**
176 * Returns a Graphics2D object for rendering into the
177 * given BufferedImage.
178 * @throws NullPointerException if BufferedImage argument is null
179 */
180 public Graphics2D createGraphics(BufferedImage img) {
181 if (img == null) {
182 throw new NullPointerException("BufferedImage cannot be null");
183 }
184 SurfaceData sd = SurfaceData.getPrimarySurfaceData(img);
185 return new SunGraphics2D(sd, Color.white, Color.black, defaultFont);
186 }
187
188 public static FontManagerForSGE getFontManagerForSGE() {
189 FontManager fm = FontManagerFactory.getInstance();
190 return (FontManagerForSGE) fm;
191 }
192
193 /* Modifies the behaviour of a subsequent call to preferLocaleFonts()
194 * to use Mincho instead of Gothic for dialoginput in JA locales
195 * on windows. Not needed on other platforms.
196 *
197 * DO NOT MOVE OR RENAME OR OTHERWISE ALTER THIS METHOD.
198 * ITS USED BY SOME NON-JRE INTERNAL CODE.
199 */
200 public static void useAlternateFontforJALocales() {
201 getFontManagerForSGE().useAlternateFontforJALocales();
202 }
203
204 /**
205 * Returns all fonts available in this environment.
206 */
207 public Font[] getAllFonts() {
208 FontManagerForSGE fm = getFontManagerForSGE();
209 Font[] installedFonts = fm.getAllInstalledFonts();
210 Font[] created = fm.getCreatedFonts();
211 if (created == null || created.length == 0) {
212 return installedFonts;
213 } else {
214 int newlen = installedFonts.length + created.length;
215 Font [] fonts = java.util.Arrays.copyOf(installedFonts, newlen);
216 System.arraycopy(created, 0, fonts,
217 installedFonts.length, created.length);
218 return fonts;
219 }
220 }
221
222 public String[] getAvailableFontFamilyNames(Locale requestedLocale) {
223 FontManagerForSGE fm = getFontManagerForSGE();
224 String[] installed = fm.getInstalledFontFamilyNames(requestedLocale);
225 /* Use a new TreeMap as used in getInstalledFontFamilyNames
226 * and insert all the keys in lower case, so that the sort order
227 * is the same as the installed families. This preserves historical
228 * behaviour and inserts new families in the right place.
229 * It would have been marginally more efficient to directly obtain
230 * the tree map and just insert new entries, but not so much as
231 * to justify the extra internal interface.
232 */
233 TreeMap<String, String> map = fm.getCreatedFontFamilyNames();
234 if (map == null || map.size() == 0) {
235 return installed;
236 } else {
237 for (int i=0; i<installed.length; i++) {
238 map.put(installed[i].toLowerCase(requestedLocale),
239 installed[i]);
240 }
241 String[] retval = new String[map.size()];
242 Object [] keyNames = map.keySet().toArray();
243 for (int i=0; i < keyNames.length; i++) {
244 retval[i] = (String)map.get(keyNames[i]);
245 }
246 return retval;
247 }
248 }
249
250 public String[] getAvailableFontFamilyNames() {
251 return getAvailableFontFamilyNames(Locale.getDefault());
252 }
253
254 /**
255 * Return the bounds of a GraphicsDevice, less its screen insets.
256 * See also java.awt.GraphicsEnvironment.getUsableBounds();
257 */
258 public static Rectangle getUsableBounds(GraphicsDevice gd) {
259 GraphicsConfiguration gc = gd.getDefaultConfiguration();
260 Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc);
261 Rectangle usableBounds = gc.getBounds();
262
263 usableBounds.x += insets.left;
264 usableBounds.y += insets.top;
265 usableBounds.width -= (insets.left + insets.right);
266 usableBounds.height -= (insets.top + insets.bottom);
267
268 return usableBounds;
269 }
270
271 /**
272 * From the DisplayChangedListener interface; called
273 * when the display mode has been changed.
274 */
275 public void displayChanged() {
276 // notify screens in device array to do display update stuff
277 for (GraphicsDevice gd : getScreenDevices()) {
278 if (gd instanceof DisplayChangedListener) {
279 ((DisplayChangedListener) gd).displayChanged();
280 }
281 }
282
283 // notify SunDisplayChanger list (e.g. VolatileSurfaceManagers and
284 // SurfaceDataProxies) about the display change event
285 displayChanger.notifyListeners();
286 }
287
288 /**
289 * Part of the DisplayChangedListener interface:
290 * propagate this event to listeners
291 */
292 public void paletteChanged() {
293 displayChanger.notifyPaletteChanged();
294 }
295
296 /**
297 * Returns true when the display is local, false for remote displays.
298 *
299 * @return true when the display is local, false for remote displays
300 */
301 public abstract boolean isDisplayLocal();
302
303 /*
304 * ----DISPLAY CHANGE SUPPORT----
305 */
306
307 protected SunDisplayChanger displayChanger = new SunDisplayChanger();
308
309 /**
310 * Add a DisplayChangeListener to be notified when the display settings
311 * are changed.
312 */
313 public void addDisplayChangedListener(DisplayChangedListener client) {
314 displayChanger.add(client);
315 }
316
317 /**
318 * Remove a DisplayChangeListener from Win32GraphicsEnvironment
319 */
320 public void removeDisplayChangedListener(DisplayChangedListener client) {
321 displayChanger.remove(client);
322 }
323
324 /*
325 * ----END DISPLAY CHANGE SUPPORT----
326 */
327
328 /**
329 * Returns true if FlipBufferStrategy with COPIED buffer contents
330 * is preferred for this peer's GraphicsConfiguration over
331 * BlitBufferStrategy, false otherwise.
332 *
333 * The reason FlipBS could be preferred is that in some configurations
334 * an accelerated copy to the screen is supported (like Direct3D 9)
335 *
336 * @return true if flip strategy should be used, false otherwise
337 */
338 public boolean isFlipStrategyPreferred(ComponentPeer peer) {
339 return false;
340 }
341 }