1 /*
   2  * Copyright (c) 2003, 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.awt.FontFormatException;
  29 import java.awt.geom.GeneralPath;
  30 import java.awt.geom.Point2D;
  31 import java.awt.geom.Rectangle2D;
  32 import java.io.FileInputStream;
  33 import java.lang.ref.WeakReference;
  34 import java.nio.ByteBuffer;
  35 import java.nio.channels.FileChannel;
  36 
  37 public abstract class PhysicalFont extends Font2D {
  38 
  39     protected String platName;
  40     // nativeNames is a String or a (possibly null) String[].
  41     protected Object nativeNames;
  42 
  43     public boolean equals(Object o) {
  44         return (o != null && o.getClass() == this.getClass() &&
  45                 ((Font2D)o).fullName.equals(this.fullName));
  46     }
  47 
  48     public int hashCode() {
  49         return fullName.hashCode();
  50     }
  51 
  52     /**
  53      * Opens the file (temporarily) and does basic verification.
  54      * Initializes the CMAP
  55      * @throws FontFormatException - if the font can't be opened
  56      * or fails verification,  or there's no usable cmap
  57      */
  58     PhysicalFont(String platname, Object nativeNames)
  59         throws FontFormatException {
  60 
  61         handle = new Font2DHandle(this);
  62         this.platName = platname;
  63         this.nativeNames = nativeNames;
  64     }
  65 
  66     protected PhysicalFont() {
  67         handle = new Font2DHandle(this);
  68     }
  69 
  70     /* The following methods are delegated to the font by the strike
  71      * for physical fonts as the PhysicalFont holds a shared reference
  72      * to the native resource, so all invocations need to be directed
  73      * through a synchronization point. Implementations of these methods
  74      * will typically be "synchronized native"
  75      */
  76 
  77     Point2D.Float getGlyphPoint(long pScalerContext,
  78                              int glyphCode, int ptNumber) {
  79         return new Point2D.Float();
  80     }
  81 
  82     /* These 3 metrics methods should be implemented to return
  83      * values in user space.
  84      */
  85     abstract StrikeMetrics getFontMetrics(long pScalerContext);
  86 
  87     abstract float getGlyphAdvance(long pScalerContext, int glyphCode);
  88 
  89     abstract void getGlyphMetrics(long pScalerContext, int glyphCode,
  90                                   Point2D.Float metrics);
  91 
  92     abstract long getGlyphImage(long pScalerContext, int glyphCode);
  93 
  94     /* These 3 outline methods should be implemented to return
  95      * values in device space. Callers need to be aware of this
  96      * as typically Java client code will need to have them in user space.
  97      */
  98     abstract Rectangle2D.Float getGlyphOutlineBounds(long pScalerContext,
  99                                                      int glyphCode);
 100 
 101     abstract GeneralPath getGlyphOutline(long pScalerContext, int glyphCode,
 102                                          float x, float y);
 103 
 104     abstract GeneralPath getGlyphVectorOutline(long pScalerContext,
 105                                                int[] glyphs, int numGlyphs,
 106                                                float x, float y);
 107 }
--- EOF ---