/* * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.font; import java.awt.FontFormatException;import java.awt.geom.GeneralPath;import java.awt.geom.Point2D;import java.awt.geom.Rectangle2D;import java.io.FileInputStream;import java.lang.ref.WeakReference;import java.nio.ByteBuffer;import java.nio.channels.FileChannel; public abstract class PhysicalFont extends Font2D {     protected String platName;    // nativeNames is a String or a (possibly null) String[].    protected Object nativeNames;     public boolean equals(Object o) {        return (o != null && o.getClass() == this.getClass() &&                ((Font2D)o).fullName.equals(this.fullName));    }     public int hashCode() {        return fullName.hashCode();    }     /**     * Opens the file (temporarily) and does basic verification.     * Initializes the CMAP     * @throws FontFormatException - if the font can't be opened     * or fails verification,  or there's no usable cmap     */    PhysicalFont(String platname, Object nativeNames)        throws FontFormatException {         handle = new Font2DHandle(this);        this.platName = platname;        this.nativeNames = nativeNames;    }     protected PhysicalFont() {        handle = new Font2DHandle(this);    }     /* The following methods are delegated to the font by the strike     * for physical fonts as the PhysicalFont holds a shared reference     * to the native resource, so all invocations need to be directed     * through a synchronization point. Implementations of these methods     * will typically be "synchronized native"     */     Point2D.Float getGlyphPoint(long pScalerContext,                             int glyphCode, int ptNumber) {        return new Point2D.Float();    }     /* These 3 metrics methods should be implemented to return     * values in user space.     */    abstract StrikeMetrics getFontMetrics(long pScalerContext);     abstract float getGlyphAdvance(long pScalerContext, int glyphCode);     abstract void getGlyphMetrics(long pScalerContext, int glyphCode,                                  Point2D.Float metrics);     abstract long getGlyphImage(long pScalerContext, int glyphCode);     /* These 3 outline methods should be implemented to return     * values in device space. Callers need to be aware of this     * as typically Java client code will need to have them in user space.     */    abstract Rectangle2D.Float getGlyphOutlineBounds(long pScalerContext,                                                     int glyphCode);     abstract GeneralPath getGlyphOutline(long pScalerContext, int glyphCode,                                         float x, float y);     abstract GeneralPath getGlyphVectorOutline(long pScalerContext,                                               int[] glyphs, int numGlyphs,                                               float x, float y);}