src/share/classes/sun/font/FontResolver.java

Print this page


   1 /*
   2  * Copyright (c) 1999, 2008, 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 
  27 /*
  28  * (C) Copyright IBM Corp. 1999,  All rights reserved.
  29  */
  30 
  31 package sun.font;
  32 
  33 import java.awt.Font;
  34 import java.awt.GraphicsEnvironment;
  35 import java.awt.font.TextAttribute;

  36 import java.util.ArrayList;
  37 import java.util.Map;
  38 import sun.text.CodePointIterator;
  39 
  40 /**
  41  * This class maps an individual character to a Font family which can
  42  * display it.  The character-to-Font mapping does not depend on the
  43  * character's context, so a particular character will be mapped to the
  44  * same font family each time.
  45  * <p>
  46  * Typically, clients will call getIndexFor(char) for each character
  47  * in a style run.  When getIndexFor() returns a different value from
  48  * ones seen previously, the characters up to that point will be assigned
  49  * a font obtained from getFont().
  50  */
  51 public final class FontResolver {
  52 
  53     // An array of all fonts available to the runtime.  The fonts
  54     // will be searched in order.
  55     private Font[] allFonts;


 205                 }
 206             }
 207         }
 208         return fontIndex;
 209     }
 210 
 211     /**
 212      * Return a Font from a given font index with properties
 213      * from attributes.  The font index, which should have been produced
 214      * by getFontIndex(), determines a font family.  The size and style
 215      * of the Font reflect the properties in attributes.  Any Font or
 216      * font family specifications in attributes are ignored, on the
 217      * assumption that clients have already handled them.
 218      * @param index an index from getFontIndex() which determines the
 219      *        font family
 220      * @param attributes a Map from which the size and style of the Font
 221      *        are determined.  The default size is 12 and the default style
 222      *        is Font.PLAIN
 223      * @see #getFontIndex
 224      */
 225     public Font getFont(int index, Map attributes) {

 226         Font font = defaultFont;
 227 
 228         if (index >= 2) {
 229             font = allFonts[index-2];
 230         }
 231 
 232         return font.deriveFont(attributes);
 233     }
 234 
 235     private static FontResolver INSTANCE;
 236 
 237     /**
 238      * Return a shared instance of FontResolver.
 239      */
 240     public static FontResolver getInstance() {
 241         if (INSTANCE == null) {
 242             INSTANCE = new FontResolver();
 243         }
 244         return INSTANCE;
 245     }
   1 /*
   2  * Copyright (c) 1999, 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 
  27 /*
  28  * (C) Copyright IBM Corp. 1999,  All rights reserved.
  29  */
  30 
  31 package sun.font;
  32 
  33 import java.awt.Font;
  34 import java.awt.GraphicsEnvironment;
  35 import java.awt.font.TextAttribute;
  36 import java.text.AttributedCharacterIterator;
  37 import java.util.ArrayList;
  38 import java.util.Map;
  39 import sun.text.CodePointIterator;
  40 
  41 /**
  42  * This class maps an individual character to a Font family which can
  43  * display it.  The character-to-Font mapping does not depend on the
  44  * character's context, so a particular character will be mapped to the
  45  * same font family each time.
  46  * <p>
  47  * Typically, clients will call getIndexFor(char) for each character
  48  * in a style run.  When getIndexFor() returns a different value from
  49  * ones seen previously, the characters up to that point will be assigned
  50  * a font obtained from getFont().
  51  */
  52 public final class FontResolver {
  53 
  54     // An array of all fonts available to the runtime.  The fonts
  55     // will be searched in order.
  56     private Font[] allFonts;


 206                 }
 207             }
 208         }
 209         return fontIndex;
 210     }
 211 
 212     /**
 213      * Return a Font from a given font index with properties
 214      * from attributes.  The font index, which should have been produced
 215      * by getFontIndex(), determines a font family.  The size and style
 216      * of the Font reflect the properties in attributes.  Any Font or
 217      * font family specifications in attributes are ignored, on the
 218      * assumption that clients have already handled them.
 219      * @param index an index from getFontIndex() which determines the
 220      *        font family
 221      * @param attributes a Map from which the size and style of the Font
 222      *        are determined.  The default size is 12 and the default style
 223      *        is Font.PLAIN
 224      * @see #getFontIndex
 225      */
 226     public Font getFont(int index,
 227                         Map<? extends AttributedCharacterIterator.Attribute, ?> attributes) {
 228         Font font = defaultFont;
 229 
 230         if (index >= 2) {
 231             font = allFonts[index-2];
 232         }
 233 
 234         return font.deriveFont(attributes);
 235     }
 236 
 237     private static FontResolver INSTANCE;
 238 
 239     /**
 240      * Return a shared instance of FontResolver.
 241      */
 242     public static FontResolver getInstance() {
 243         if (INSTANCE == null) {
 244             INSTANCE = new FontResolver();
 245         }
 246         return INSTANCE;
 247     }