1 /*
   2  * Copyright (c) 2003, 2006, 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.font;
  27 
  28 import java.io.File;
  29 import java.awt.Font;
  30 import java.util.HashMap;
  31 import java.util.concurrent.ConcurrentHashMap;
  32 import java.util.Locale;
  33 
  34 public class FontFamily {
  35 
  36     private static ConcurrentHashMap<String, FontFamily>
  37         familyNameMap = new ConcurrentHashMap<String, FontFamily>();
  38     private static HashMap<String, FontFamily> allLocaleNames;
  39 
  40     protected String familyName;
  41     protected Font2D plain;
  42     protected Font2D bold;
  43     protected Font2D italic;
  44     protected Font2D bolditalic;
  45     protected boolean logicalFont = false;
  46     protected int familyRank;
  47 
  48     public static FontFamily getFamily(String name) {
  49         return familyNameMap.get(name.toLowerCase(Locale.ENGLISH));
  50     }
  51 
  52     public static String[] getAllFamilyNames() {
  53         return null;
  54     }
  55 
  56     /* Only for use by FontManager.deRegisterBadFont(..).
  57      * If this was the only font in the family, the family is removed
  58      * from the map
  59      */
  60     static void remove(Font2D font2D) {
  61 
  62         String name = font2D.getFamilyName(Locale.ENGLISH);
  63         FontFamily family = getFamily(name);
  64         if (family == null) {
  65             return;
  66         }
  67         if (family.plain == font2D) {
  68             family.plain = null;
  69         }
  70         if (family.bold == font2D) {
  71             family.bold = null;
  72         }
  73         if (family.italic == font2D) {
  74             family.italic = null;
  75         }
  76         if (family.bolditalic == font2D) {
  77             family.bolditalic = null;
  78         }
  79         if (family.plain == null && family.bold == null &&
  80             family.plain == null && family.bold == null) {
  81             familyNameMap.remove(name);
  82         }
  83     }
  84 
  85     public FontFamily(String name, boolean isLogFont, int rank) {
  86         logicalFont = isLogFont;
  87         familyName = name;
  88         familyRank = rank;
  89         familyNameMap.put(name.toLowerCase(Locale.ENGLISH), this);
  90     }
  91 
  92     /* Create a family for created fonts which aren't listed in the
  93      * main map.
  94      */
  95     FontFamily(String name) {
  96         logicalFont = false;
  97         familyName = name;
  98         familyRank = Font2D.DEFAULT_RANK;
  99     }
 100 
 101     public String getFamilyName() {
 102         return familyName;
 103     }
 104 
 105     public int getRank() {
 106         return familyRank;
 107     }
 108 
 109     private boolean isFromSameSource(Font2D font) {
 110         if (!(font instanceof FileFont)) {
 111             return false;
 112         }
 113 
 114         FileFont existingFont = null;
 115         if (plain instanceof FileFont) {
 116             existingFont = (FileFont)plain;
 117         } else if (bold instanceof FileFont) {
 118             existingFont = (FileFont)bold;
 119         } else if (italic instanceof FileFont) {
 120              existingFont = (FileFont)italic;
 121         } else if (bolditalic instanceof FileFont) {
 122              existingFont = (FileFont)bolditalic;
 123         }
 124         // A family isn't created until there's a font.
 125         // So if we didn't find a file font it means this
 126         // isn't a file-based family.
 127         if (existingFont == null) {
 128             return false;
 129         }
 130         File existDir = (new File(existingFont.platName)).getParentFile();
 131 
 132         FileFont newFont = (FileFont)font;
 133         File newDir = (new File(newFont.platName)).getParentFile();
 134         return java.util.Objects.equals(newDir, existDir);
 135     }
 136 
 137     public void setFont(Font2D font, int style) {
 138         /* Allow a lower-rank font only if its a file font
 139          * from the exact same source as any previous font.
 140          */
 141         if ((font.getRank() > familyRank) && !isFromSameSource(font)) {
 142             if (FontUtilities.isLogging()) {
 143                 FontUtilities.getLogger()
 144                                   .warning("Rejecting adding " + font +
 145                                            " of lower rank " + font.getRank() +
 146                                            " to family " + this +
 147                                            " of rank " + familyRank);
 148             }
 149             return;
 150         }
 151 
 152         switch (style) {
 153 
 154         case Font.PLAIN:
 155             plain = font;
 156             break;
 157 
 158         case Font.BOLD:
 159             bold = font;
 160             break;
 161 
 162         case Font.ITALIC:
 163             italic = font;
 164             break;
 165 
 166         case Font.BOLD|Font.ITALIC:
 167             bolditalic = font;
 168             break;
 169 
 170         default:
 171             break;
 172         }
 173     }
 174 
 175     public Font2D getFontWithExactStyleMatch(int style) {
 176 
 177         switch (style) {
 178 
 179         case Font.PLAIN:
 180             return plain;
 181 
 182         case Font.BOLD:
 183             return bold;
 184 
 185         case Font.ITALIC:
 186             return italic;
 187 
 188         case Font.BOLD|Font.ITALIC:
 189             return bolditalic;
 190 
 191         default:
 192             return null;
 193         }
 194     }
 195 
 196     /* REMIND: if the callers of this method are operating in an
 197      * environment in which not all fonts are registered, the returned
 198      * font may be a algorithmically styled one, where in fact if loadfonts
 199      * were executed, a styled font may be located. Our present "solution"
 200      * to this is to register all fonts in a directory and assume that this
 201      * registered all the styles of a font, since they would all be in the
 202      * same location.
 203      */
 204     public Font2D getFont(int style) {
 205 
 206         switch (style) {
 207 
 208         case Font.PLAIN:
 209             return plain;
 210 
 211         case Font.BOLD:
 212             if (bold != null) {
 213                 return bold;
 214             } else if (plain != null && plain.canDoStyle(style)) {
 215                     return plain;
 216             } else {
 217                 return null;
 218             }
 219 
 220         case Font.ITALIC:
 221             if (italic != null) {
 222                 return italic;
 223             } else if (plain != null && plain.canDoStyle(style)) {
 224                     return plain;
 225             } else {
 226                 return null;
 227             }
 228 
 229         case Font.BOLD|Font.ITALIC:
 230             if (bolditalic != null) {
 231                 return bolditalic;
 232             } else if (italic != null && italic.canDoStyle(style)) {
 233                     return italic;
 234             } else if (bold != null && bold.canDoStyle(style)) {
 235                     return italic;
 236             } else if (plain != null && plain.canDoStyle(style)) {
 237                     return plain;
 238             } else {
 239                 return null;
 240             }
 241         default:
 242             return null;
 243         }
 244     }
 245 
 246     /* Only to be called if getFont(style) returns null
 247      * This method will only return null if the family is completely empty!
 248      * Note that it assumes the font of the style you need isn't in the
 249      * family. The logic here is that if we must substitute something
 250      * it might as well be from the same family.
 251      */
 252      Font2D getClosestStyle(int style) {
 253 
 254         switch (style) {
 255             /* if you ask for a plain font try to return a non-italic one,
 256              * then a italic one, finally a bold italic one */
 257         case Font.PLAIN:
 258             if (bold != null) {
 259                 return bold;
 260             } else if (italic != null) {
 261                 return italic;
 262             } else {
 263                 return bolditalic;
 264             }
 265 
 266             /* if you ask for a bold font try to return a non-italic one,
 267              * then a bold italic one, finally an italic one */
 268         case Font.BOLD:
 269             if (plain != null) {
 270                 return plain;
 271             } else if (bolditalic != null) {
 272                 return bolditalic;
 273             } else {
 274                 return italic;
 275             }
 276 
 277             /* if you ask for a italic font try to return a  bold italic one,
 278              * then a plain one, finally an bold one */
 279         case Font.ITALIC:
 280             if (bolditalic != null) {
 281                 return bolditalic;
 282             } else if (plain != null) {
 283                 return plain;
 284             } else {
 285                 return bold;
 286             }
 287 
 288         case Font.BOLD|Font.ITALIC:
 289             if (italic != null) {
 290                 return italic;
 291             } else if (bold != null) {
 292                 return bold;
 293             } else {
 294                 return plain;
 295             }
 296         }
 297         return null;
 298     }
 299 
 300     /* Font may have localized names. Store these in a separate map, so
 301      * that only clients who use these names need be affected.
 302      */
 303     static synchronized void addLocaleNames(FontFamily family, String[] names){
 304         if (allLocaleNames == null) {
 305             allLocaleNames = new HashMap<String, FontFamily>();
 306         }
 307         for (int i=0; i<names.length; i++) {
 308             allLocaleNames.put(names[i].toLowerCase(), family);
 309         }
 310     }
 311 
 312     public static synchronized FontFamily getLocaleFamily(String name) {
 313         if (allLocaleNames == null) {
 314             return null;
 315         }
 316         return allLocaleNames.get(name.toLowerCase());
 317     }
 318 
 319     public String toString() {
 320         return
 321             "Font family: " + familyName +
 322             " plain="+plain+
 323             " bold=" + bold +
 324             " italic=" + italic +
 325             " bolditalic=" + bolditalic;
 326 
 327     }
 328 
 329 }
--- EOF ---