1 /*
   2  * Copyright 2000-2007 Sun Microsystems, Inc.  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.  Sun designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  22  * CA 95054 USA or visit www.sun.com if you need additional information or
  23  * have any questions.
  24  */
  25 
  26 package sun.awt.motif;
  27 
  28 import java.awt.Font;
  29 import java.io.BufferedReader;
  30 import java.io.File;
  31 import java.io.FileInputStream;
  32 import java.io.InputStreamReader;
  33 import java.util.HashMap;
  34 import java.util.HashSet;
  35 import java.util.Locale;
  36 import java.util.logging.Logger;
  37 import java.util.Properties;
  38 import java.util.Scanner;
  39 import sun.awt.FontConfiguration;
  40 import sun.awt.X11GraphicsEnvironment;
  41 import sun.java2d.SunGraphicsEnvironment;
  42 import java.nio.charset.Charset;
  43 
  44 public class MFontConfiguration extends FontConfiguration {
  45 
  46     private static FontConfiguration fontConfig = null;
  47     private static Logger logger;
  48 
  49     public MFontConfiguration(SunGraphicsEnvironment environment) {
  50         super(environment);
  51         if (SunGraphicsEnvironment.debugFonts) {
  52             logger = Logger.getLogger("sun.awt.FontConfiguration");
  53         }
  54         initTables();
  55     }
  56 
  57 
  58     public MFontConfiguration(SunGraphicsEnvironment environment,
  59                               boolean preferLocaleFonts,
  60                               boolean preferPropFonts) {
  61         super(environment, preferLocaleFonts, preferPropFonts);
  62         if (SunGraphicsEnvironment.debugFonts) {
  63             logger = Logger.getLogger("sun.awt.FontConfiguration");
  64         }
  65         initTables();
  66     }
  67 
  68     /* Needs to be kept in sync with updates in the languages used in
  69      * the fontconfig files.
  70      */
  71     protected void initReorderMap() {
  72         reorderMap = new HashMap();
  73         if (osName == null) {  /* null means SunOS */
  74             initReorderMapForSolaris();
  75         } else {
  76             initReorderMapForLinux();
  77         }
  78     }
  79 
  80     private void initReorderMapForSolaris() {
  81         /* Don't create a no-op entry, so we can optimize this case
  82          * i.e. we don't need to do anything so can avoid slower paths in
  83          * the code.
  84          */
  85 //      reorderMap.put("UTF-8", "latin-1");
  86         reorderMap.put("UTF-8.hi", "devanagari"); // NB is in Lucida.
  87         reorderMap.put("UTF-8.ja",
  88                        split("japanese-x0201,japanese-x0208,japanese-x0212"));
  89         reorderMap.put("UTF-8.ko", "korean-johab");
  90         reorderMap.put("UTF-8.th", "thai");
  91         reorderMap.put("UTF-8.zh.TW", "chinese-big5");
  92         reorderMap.put("UTF-8.zh.HK", split("chinese-big5,chinese-hkscs"));
  93         if (sun.font.FontManager.isSolaris8) {
  94             reorderMap.put("UTF-8.zh.CN", split("chinese-gb2312,chinese-big5"));
  95         } else {
  96             reorderMap.put("UTF-8.zh.CN",
  97                            split("chinese-gb18030-0,chinese-gb18030-1"));
  98         }
  99         reorderMap.put("UTF-8.zh",
 100                        split("chinese-big5,chinese-hkscs,chinese-gb18030-0,chinese-gb18030-1"));
 101         reorderMap.put("Big5", "chinese-big5");
 102         reorderMap.put("Big5-HKSCS", split("chinese-big5,chinese-hkscs"));
 103         if (! sun.font.FontManager.isSolaris8 && ! sun.font.FontManager.isSolaris9) {
 104             reorderMap.put("GB2312", split("chinese-gbk,chinese-gb2312"));
 105         } else {
 106             reorderMap.put("GB2312","chinese-gb2312");
 107         }
 108         reorderMap.put("x-EUC-TW",
 109             split("chinese-cns11643-1,chinese-cns11643-2,chinese-cns11643-3"));
 110         reorderMap.put("GBK", "chinese-gbk");
 111         reorderMap.put("GB18030",split("chinese-gb18030-0,chinese-gb18030-1"));
 112 
 113         reorderMap.put("TIS-620", "thai");
 114         reorderMap.put("x-PCK",
 115                        split("japanese-x0201,japanese-x0208,japanese-x0212"));
 116         reorderMap.put("x-eucJP-Open",
 117                        split("japanese-x0201,japanese-x0208,japanese-x0212"));
 118         reorderMap.put("EUC-KR", "korean");
 119         /* Don't create a no-op entry, so we can optimize this case */
 120 //      reorderMap.put("ISO-8859-1", "latin-1");
 121         reorderMap.put("ISO-8859-2", "latin-2");
 122         reorderMap.put("ISO-8859-5", "cyrillic-iso8859-5");
 123         reorderMap.put("windows-1251", "cyrillic-cp1251");
 124         reorderMap.put("KOI8-R", "cyrillic-koi8-r");
 125         reorderMap.put("ISO-8859-6", "arabic");
 126         reorderMap.put("ISO-8859-7", "greek");
 127         reorderMap.put("ISO-8859-8", "hebrew");
 128         reorderMap.put("ISO-8859-9", "latin-5");
 129         reorderMap.put("ISO-8859-13", "latin-7");
 130         reorderMap.put("ISO-8859-15", "latin-9");
 131     }
 132 
 133     private void initReorderMapForLinux() {
 134         reorderMap.put("UTF-8.ja.JP", "japanese-iso10646");
 135         reorderMap.put("UTF-8.ko.KR", "korean-iso10646");
 136         reorderMap.put("UTF-8.zh.TW", "chinese-tw-iso10646");
 137         reorderMap.put("UTF-8.zh.HK", "chinese-tw-iso10646");
 138         reorderMap.put("UTF-8.zh.CN", "chinese-cn-iso10646");
 139         reorderMap.put("x-euc-jp-linux",
 140                         split("japanese-x0201,japanese-x0208"));
 141         reorderMap.put("GB2312", "chinese-gb18030");
 142         reorderMap.put("Big5", "chinese-big5");
 143         reorderMap.put("EUC-KR", "korean");
 144         if (osName.equals("Sun")){
 145             reorderMap.put("GB18030", "chinese-cn-iso10646");
 146         }
 147         else {
 148             reorderMap.put("GB18030", "chinese-gb18030");
 149         }
 150     }
 151 
 152     /**
 153      * Sets the OS name and version from environment information.
 154      */
 155     protected void setOsNameAndVersion(){
 156         super.setOsNameAndVersion();
 157 
 158         if (osName.equals("SunOS")) {
 159             //don't care os name on Solaris
 160             osName = null;
 161         } else if (osName.equals("Linux")) {
 162             try {
 163                 File f;
 164                 if ((f = new File("/etc/sun-release")).canRead()) {
 165                     osName = "Sun";
 166                     osVersion = getVersionString(f);
 167                 } else if ((f = new File("/etc/fedora-release")).canRead()) {
 168                     osName = "Fedora";
 169                     osVersion = getVersionString(f);
 170                 } else if ((f = new File("/etc/redhat-release")).canRead()) {
 171                     osName = "RedHat";
 172                     osVersion = getVersionString(f);
 173                 } else if ((f = new File("/etc/turbolinux-release")).canRead()) {
 174                     osName = "Turbo";
 175                     osVersion = getVersionString(f);
 176                 } else if ((f = new File("/etc/SuSE-release")).canRead()) {
 177                     osName = "SuSE";
 178                     osVersion = getVersionString(f);
 179                 } else if ((f = new File("/etc/lsb-release")).canRead()) {
 180                     /* Ubuntu and (perhaps others) use only lsb-release.
 181                      * Syntax and encoding is compatible with java properties.
 182                      * For Ubuntu the ID is "Ubuntu".
 183                      */
 184                     Properties props = new Properties();
 185                     props.load(new FileInputStream(f));
 186                     osName = props.getProperty("DISTRIB_ID");
 187                     osVersion =  props.getProperty("DISTRIB_RELEASE");
 188                 }
 189             } catch (Exception e) {
 190             }
 191         }
 192         return;
 193     }
 194 
 195     /**
 196      * Gets the OS version string from a Linux release-specific file.
 197      */
 198     private String getVersionString(File f){
 199         try {
 200             Scanner sc  = new Scanner(f);
 201             return sc.findInLine("(\\d)+((\\.)(\\d)+)*");
 202         }
 203         catch (Exception e){
 204         }
 205         return null;
 206     }
 207 
 208     private static final String fontsDirPrefix = "$JRE_LIB_FONTS";
 209 
 210     protected String mapFileName(String fileName) {
 211         if (fileName != null && fileName.startsWith(fontsDirPrefix)) {
 212             return SunGraphicsEnvironment.jreFontDirName
 213                     + fileName.substring(fontsDirPrefix.length());
 214         }
 215         return fileName;
 216     }
 217 
 218     // overrides FontConfiguration.getFallbackFamilyName
 219     public String getFallbackFamilyName(String fontName, String defaultFallback) {
 220         // maintain compatibility with old font.properties files, which
 221         // either had aliases for TimesRoman & Co. or defined mappings for them.
 222         String compatibilityName = getCompatibilityFamilyName(fontName);
 223         if (compatibilityName != null) {
 224             return compatibilityName;
 225         }
 226         return defaultFallback;
 227     }
 228 
 229     protected String getEncoding(String awtFontName,
 230             String characterSubsetName) {
 231         // extract encoding field from XLFD
 232         int beginIndex = 0;
 233         int fieldNum = 13; // charset registry field
 234         while (fieldNum-- > 0 && beginIndex >= 0) {
 235             beginIndex = awtFontName.indexOf("-", beginIndex) + 1;
 236         }
 237         if (beginIndex == -1) {
 238             return "default";
 239         }
 240         String xlfdEncoding = awtFontName.substring(beginIndex);
 241         if (xlfdEncoding.indexOf("fontspecific") > 0) {
 242             if (awtFontName.indexOf("dingbats") > 0) {
 243                 return "sun.awt.motif.X11Dingbats";
 244             } else if (awtFontName.indexOf("symbol") > 0) {
 245                 return "sun.awt.Symbol";
 246             }
 247         }
 248         String encoding = (String) encodingMap.get(xlfdEncoding);
 249         if (encoding == null) {
 250             encoding = "default";
 251         }
 252         return encoding;
 253     }
 254 
 255     protected Charset getDefaultFontCharset(String fontName) {
 256         return Charset.forName("ISO8859_1");
 257     }
 258 
 259     /* methods for Motif support *********************************************/
 260 
 261     private String[][] motifFontSets = new String[NUM_FONTS][NUM_STYLES];
 262 
 263     public String getMotifFontSet(String fontName, int style) {
 264         assert isLogicalFontFamilyName(fontName);
 265         fontName = fontName.toLowerCase(Locale.ENGLISH);
 266         int fontIndex = getFontIndex(fontName);
 267         int styleIndex = getStyleIndex(style);
 268         return getMotifFontSet(fontIndex, styleIndex);
 269     }
 270 
 271     private String getMotifFontSet(int fontIndex, int styleIndex) {
 272         String fontSet = motifFontSets[fontIndex][styleIndex];
 273         if (fontSet == null) {
 274             fontSet = buildMotifFontSet(fontIndex, styleIndex);
 275             motifFontSets[fontIndex][styleIndex] = fontSet;
 276         }
 277         return fontSet;
 278     }
 279 
 280     private String buildMotifFontSet(int fontIndex, int styleIndex) {
 281         StringBuilder buffer = new StringBuilder();
 282         short[] scripts = getCoreScripts(fontIndex);
 283         for (int i = 0; i < scripts.length; i++) {
 284             short nameID = getComponentFontIDMotif(scripts[i], fontIndex, styleIndex);
 285             if (nameID == 0) {
 286                 nameID = getComponentFontID(scripts[i], fontIndex, styleIndex);
 287             }
 288             String name = getComponentFontName(nameID);
 289             if (name == null || name.endsWith("fontspecific")) {
 290                 continue;
 291             }
 292             if (buffer.length() > 0) {
 293                 buffer.append(',');
 294             }
 295             buffer.append(name);
 296         }
 297         return buffer.toString();
 298     }
 299 
 300     protected String getFaceNameFromComponentFontName(String componentFontName) {
 301         return null;
 302     }
 303 
 304     protected String getFileNameFromComponentFontName(String componentFontName) {
 305         // for X11, component font name is XLFD
 306         // if we have a file name already, just use it; otherwise let's see
 307         // what the graphics environment can provide
 308         String fileName = getFileNameFromPlatformName(componentFontName);
 309         if (fileName != null && fileName.charAt(0) == '/' &&
 310             !needToSearchForFile(fileName)) {
 311             return fileName;
 312         }
 313         return ((X11GraphicsEnvironment) environment).getFileNameFromXLFD(componentFontName);
 314     }
 315 
 316     /**
 317      * Get default font for Motif widgets to use, preventing them from
 318      * wasting time accessing inappropriate X resources.  This is called
 319      * only from native code.
 320      *
 321      * This is part of a Motif specific performance enhancement.  By
 322      * default, when Motif widgets are created and initialized, Motif will
 323      * set up default fonts for the widgets, which we ALWAYS override.
 324      * This set up includes finding the default font in the widget's X
 325      * resources and fairly expensive requests of the X server to identify
 326      * the specific font or fontset.  We avoid all of this overhead by
 327      * providing a well known font to use at the creation of widgets, where
 328      * possible.
 329      *
 330      * The X11 fonts are specified by XLFD strings which have %d as a
 331      * marker to indicate where the fontsize should be substituted.  [The
 332      * libc function sprintf() is used to replace it.]  The value 140
 333      * specifies a font size of 14 points.
 334      */
 335     private static String getDefaultMotifFontSet() {
 336         String font = ((MFontConfiguration) getFontConfiguration()).getMotifFontSet("sansserif", Font.PLAIN);
 337         if (font != null) {
 338             int i;
 339             while ((i = font.indexOf("%d")) >= 0) {
 340                 font = font.substring(0, i) + "140" + font.substring(i+2);
 341             }
 342         }
 343         return font;
 344     }
 345 
 346     public HashSet<String> getAWTFontPathSet() {
 347         HashSet<String> fontDirs = new HashSet<String>();
 348         short[] scripts = getCoreScripts(0);
 349         for (int i = 0; i< scripts.length; i++) {
 350             String path = getString(table_awtfontpaths[scripts[i]]);
 351             if (path != null) {
 352                 int start = 0;
 353                 int colon = path.indexOf(':');
 354                 while (colon >= 0) {
 355                     fontDirs.add(path.substring(start, colon));
 356                     start = colon + 1;
 357                     colon = path.indexOf(':', start);
 358                 }
 359                 fontDirs.add((start == 0) ? path : path.substring(start));
 360             }
 361         }
 362         return fontDirs;
 363     }
 364 
 365     /* methods for table setup ***********************************************/
 366 
 367     private static HashMap encodingMap = new HashMap();
 368 
 369     private void initTables() {
 370         // encodingMap maps XLFD encoding component to
 371         // name of corresponding java.nio charset
 372         encodingMap.put("iso8859-1", "ISO-8859-1");
 373         encodingMap.put("iso8859-2", "ISO-8859-2");
 374         encodingMap.put("iso8859-4", "ISO-8859-4");
 375         encodingMap.put("iso8859-5", "ISO-8859-5");
 376         encodingMap.put("iso8859-6", "ISO-8859-6");
 377         encodingMap.put("iso8859-7", "ISO-8859-7");
 378         encodingMap.put("iso8859-8", "ISO-8859-8");
 379         encodingMap.put("iso8859-9", "ISO-8859-9");
 380         encodingMap.put("iso8859-13", "ISO-8859-13");
 381         encodingMap.put("iso8859-15", "ISO-8859-15");
 382         encodingMap.put("gb2312.1980-0", "sun.awt.motif.X11GB2312");
 383         if (osName == null) {
 384             // use standard converter on Solaris
 385             encodingMap.put("gbk-0", "GBK");
 386         } else {
 387             encodingMap.put("gbk-0", "sun.awt.motif.X11GBK");
 388         }
 389         encodingMap.put("gb18030.2000-0", "sun.awt.motif.X11GB18030_0");
 390         encodingMap.put("gb18030.2000-1", "sun.awt.motif.X11GB18030_1");
 391         encodingMap.put("cns11643-1", "sun.awt.motif.X11CNS11643P1");
 392         encodingMap.put("cns11643-2", "sun.awt.motif.X11CNS11643P2");
 393         encodingMap.put("cns11643-3", "sun.awt.motif.X11CNS11643P3");
 394         encodingMap.put("big5-1", "Big5");
 395         encodingMap.put("big5-0", "Big5");
 396         encodingMap.put("hkscs-1", "Big5-HKSCS");
 397         encodingMap.put("ansi-1251", "windows-1251");
 398         encodingMap.put("koi8-r", "KOI8-R");
 399         encodingMap.put("jisx0201.1976-0", "sun.awt.motif.X11JIS0201");
 400         encodingMap.put("jisx0208.1983-0", "sun.awt.motif.X11JIS0208");
 401         encodingMap.put("jisx0212.1990-0", "sun.awt.motif.X11JIS0212");
 402         encodingMap.put("ksc5601.1987-0", "sun.awt.motif.X11KSC5601");
 403         encodingMap.put("ksc5601.1992-3", "sun.awt.motif.X11Johab");
 404         encodingMap.put("tis620.2533-0", "TIS-620");
 405         encodingMap.put("iso10646-1", "UTF-16BE");
 406     }
 407 
 408 }