1 /* 2 * Copyright (c) 1997, 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. 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 ret = new GraphicsDevice[num]; 139 for (int i = 0; i < num; i++) { 140 ret[i] = makeScreenDevice(i); 141 } 142 screens = ret; 143 } 144 return ret; 145 } 146 147 /** 148 * Returns the number of screen devices of this graphics environment. 149 * 150 * @return the number of screen devices of this graphics environment 151 */ 152 protected abstract int getNumScreens(); 153 154 /** 155 * Create and return the screen device with the specified number. The 156 * device with number <code>0</code> will be the default device (returned 157 * by {@link #getDefaultScreenDevice()}. 158 * 159 * @param screennum the number of the screen to create 160 * 161 * @return the created screen device 162 */ 163 protected abstract GraphicsDevice makeScreenDevice(int screennum); 164 165 /** 166 * Returns the default screen graphics device. 167 */ 168 public GraphicsDevice getDefaultScreenDevice() { 169 GraphicsDevice[] screens = getScreenDevices(); 170 if (screens.length == 0) { 171 throw new AWTError("no screen devices"); 172 } 173 return screens[0]; 174 } 175 176 /** 177 * Returns a Graphics2D object for rendering into the 178 * given BufferedImage. 179 * @throws NullPointerException if BufferedImage argument is null 180 */ 181 public Graphics2D createGraphics(BufferedImage img) { 182 if (img == null) { 183 throw new NullPointerException("BufferedImage cannot be null"); 184 } 185 SurfaceData sd = SurfaceData.getPrimarySurfaceData(img); 186 return new SunGraphics2D(sd, Color.white, Color.black, defaultFont); 187 } 188 189 public static FontManagerForSGE getFontManagerForSGE() { 190 FontManager fm = FontManagerFactory.getInstance(); 191 return (FontManagerForSGE) fm; 192 } 193 194 /* Modifies the behaviour of a subsequent call to preferLocaleFonts() 195 * to use Mincho instead of Gothic for dialoginput in JA locales 196 * on windows. Not needed on other platforms. 197 * 198 * DO NOT MOVE OR RENAME OR OTHERWISE ALTER THIS METHOD. 199 * ITS USED BY SOME NON-JRE INTERNAL CODE. 200 */ 201 public static void useAlternateFontforJALocales() { 202 getFontManagerForSGE().useAlternateFontforJALocales(); 203 } 204 205 /** 206 * Returns all fonts available in this environment. 207 */ 208 public Font[] getAllFonts() { 209 FontManagerForSGE fm = getFontManagerForSGE(); 210 Font[] installedFonts = fm.getAllInstalledFonts(); 211 Font[] created = fm.getCreatedFonts(); 212 if (created == null || created.length == 0) { 213 return installedFonts; 214 } else { 215 int newlen = installedFonts.length + created.length; 216 Font [] fonts = java.util.Arrays.copyOf(installedFonts, newlen); 217 System.arraycopy(created, 0, fonts, 218 installedFonts.length, created.length); 219 return fonts; 220 } 221 } 222 223 public String[] getAvailableFontFamilyNames(Locale requestedLocale) { 224 FontManagerForSGE fm = getFontManagerForSGE(); 225 String[] installed = fm.getInstalledFontFamilyNames(requestedLocale); 226 /* Use a new TreeMap as used in getInstalledFontFamilyNames 227 * and insert all the keys in lower case, so that the sort order 228 * is the same as the installed families. This preserves historical 229 * behaviour and inserts new families in the right place. 230 * It would have been marginally more efficient to directly obtain 231 * the tree map and just insert new entries, but not so much as 232 * to justify the extra internal interface. 233 */ 234 TreeMap<String, String> map = fm.getCreatedFontFamilyNames(); 235 if (map == null || map.size() == 0) { 236 return installed; 237 } else { 238 for (int i=0; i<installed.length; i++) { 239 map.put(installed[i].toLowerCase(requestedLocale), 240 installed[i]); 241 } 242 String[] retval = new String[map.size()]; 243 Object [] keyNames = map.keySet().toArray(); 244 for (int i=0; i < keyNames.length; i++) { 245 retval[i] = map.get(keyNames[i]); 246 } 247 return retval; 248 } 249 } 250 251 public String[] getAvailableFontFamilyNames() { 252 return getAvailableFontFamilyNames(Locale.getDefault()); 253 } 254 255 /** 256 * Return the bounds of a GraphicsDevice, less its screen insets. 257 * See also java.awt.GraphicsEnvironment.getUsableBounds(); 258 */ 259 public static Rectangle getUsableBounds(GraphicsDevice gd) { 260 GraphicsConfiguration gc = gd.getDefaultConfiguration(); 261 Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc); 262 Rectangle usableBounds = gc.getBounds(); 263 264 usableBounds.x += insets.left; 265 usableBounds.y += insets.top; 266 usableBounds.width -= (insets.left + insets.right); 267 usableBounds.height -= (insets.top + insets.bottom); 268 269 return usableBounds; 270 } 271 272 /** 273 * From the DisplayChangedListener interface; called 274 * when the display mode has been changed. 275 */ 276 public void displayChanged() { 277 // notify screens in device array to do display update stuff 278 for (GraphicsDevice gd : getScreenDevices()) { 279 if (gd instanceof DisplayChangedListener) { 280 ((DisplayChangedListener) gd).displayChanged(); 281 } 282 } 283 284 // notify SunDisplayChanger list (e.g. VolatileSurfaceManagers and 285 // SurfaceDataProxies) about the display change event 286 displayChanger.notifyListeners(); 287 } 288 289 /** 290 * Part of the DisplayChangedListener interface: 291 * propagate this event to listeners 292 */ 293 public void paletteChanged() { 294 displayChanger.notifyPaletteChanged(); 295 } 296 297 /** 298 * Returns true when the display is local, false for remote displays. 299 * 300 * @return true when the display is local, false for remote displays 301 */ 302 public abstract boolean isDisplayLocal(); 303 304 /* 305 * ----DISPLAY CHANGE SUPPORT---- 306 */ 307 308 protected SunDisplayChanger displayChanger = new SunDisplayChanger(); 309 310 /** 311 * Add a DisplayChangeListener to be notified when the display settings 312 * are changed. 313 */ 314 public void addDisplayChangedListener(DisplayChangedListener client) { 315 displayChanger.add(client); 316 } 317 318 /** 319 * Remove a DisplayChangeListener from Win32GraphicsEnvironment 320 */ 321 public void removeDisplayChangedListener(DisplayChangedListener client) { 322 displayChanger.remove(client); 323 } 324 325 /* 326 * ----END DISPLAY CHANGE SUPPORT---- 327 */ 328 329 /** 330 * Returns true if FlipBufferStrategy with COPIED buffer contents 331 * is preferred for this peer's GraphicsConfiguration over 332 * BlitBufferStrategy, false otherwise. 333 * 334 * The reason FlipBS could be preferred is that in some configurations 335 * an accelerated copy to the screen is supported (like Direct3D 9) 336 * 337 * @return true if flip strategy should be used, false otherwise 338 */ 339 public boolean isFlipStrategyPreferred(ComponentPeer peer) { 340 return false; 341 } 342 }