| /* |
| * Copyright (c) 2003, 2008, 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.Font; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.GeneralPath; |
| import java.awt.geom.Point2D; |
| import java.awt.geom.Rectangle2D; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| |
| public abstract class PhysicalStrike extends FontStrike { |
| |
| static final long INTMASK = 0xffffffffL; |
| static boolean longAddresses; |
| static { |
| switch (StrikeCache.nativeAddressSize) { |
| case 8: longAddresses = true; break; |
| case 4: longAddresses = false; break; |
| default: throw new RuntimeException("Unexpected address size"); |
| } |
| } |
| |
| private PhysicalFont physicalFont; |
| protected CharToGlyphMapper mapper; |
| /* the ScalerContext is a native structure pre-filled with the |
| * info needed to setup the scaler for this strike. Its immutable |
| * so we set it up when the strike is created and free it when the |
| * strike is disposed. There's then no need to pass the info down |
| * separately to native on every call to the scaler. |
| */ |
| protected long pScalerContext; |
| |
| /* Only one of these two arrays is non-null. |
| * use the one that matches size of an address (32 or 64 bits) |
| */ |
| protected long[] longGlyphImages; |
| protected int[] intGlyphImages; |
| |
| /* Used by the TrueTypeFont subclass, which is the only client |
| * of getGlyphPoint(). The field and method are here because |
| * there is no TrueTypeFontStrike subclass. |
| * This map is a cache of the positions of points on the outline |
| * of a TrueType glyph. It is used by the OpenType layout engine |
| * to perform mark positioning. Without this cache every position |
| * request involves scaling and hinting the glyph outline potentially |
| * over and over again. |
| */ |
| ConcurrentHashMap<Integer, Point2D.Float> glyphPointMapCache; |
| |
| protected boolean getImageWithAdvance; |
| protected static final int complexTX = |
| AffineTransform.TYPE_FLIP | |
| AffineTransform.TYPE_GENERAL_SCALE | |
| AffineTransform.TYPE_GENERAL_ROTATION | |
| AffineTransform.TYPE_GENERAL_TRANSFORM | |
| AffineTransform.TYPE_QUADRANT_ROTATION; |
| |
| PhysicalStrike(PhysicalFont physicalFont, FontStrikeDesc desc) { |
| this.physicalFont = physicalFont; |
| this.desc = desc; |
| } |
| |
| protected PhysicalStrike() { |
| } |
| /* A number of methods are delegated by the strike to the scaler |
| * context which is a shared resource on a physical font. |
| */ |
| |
| public int getNumGlyphs() { |
| return physicalFont.getNumGlyphs(); |
| } |
| |
| /* These 3 metrics methods below should be implemented to return |
| * values in user space. |
| */ |
| StrikeMetrics getFontMetrics() { |
| if (strikeMetrics == null) { |
| strikeMetrics = |
| physicalFont.getFontMetrics(pScalerContext); |
| } |
| return strikeMetrics; |
| } |
| |
| float getCodePointAdvance(int cp) { |
| return getGlyphAdvance(physicalFont.getMapper().charToGlyph(cp)); |
| } |
| |
| Point2D.Float getCharMetrics(char ch) { |
| return getGlyphMetrics(physicalFont.getMapper().charToGlyph(ch)); |
| } |
| |
| int getSlot0GlyphImagePtrs(int[] glyphCodes, long[] images, int len) { |
| return 0; |
| } |
| |
| /* Used by the OpenType engine for mark positioning. |
| */ |
| Point2D.Float getGlyphPoint(int glyphCode, int ptNumber) { |
| Point2D.Float gp = null; |
| Integer ptKey = Integer.valueOf(glyphCode<<16|ptNumber); |
| if (glyphPointMapCache == null) { |
| synchronized (this) { |
| if (glyphPointMapCache == null) { |
| glyphPointMapCache = |
| new ConcurrentHashMap<Integer, Point2D.Float>(); |
| } |
| } |
| } else { |
| gp = glyphPointMapCache.get(ptKey); |
| } |
| |
| if (gp == null) { |
| gp = (physicalFont.getGlyphPoint(pScalerContext, glyphCode, ptNumber)); |
| adjustPoint(gp); |
| glyphPointMapCache.put(ptKey, gp); |
| } |
| return gp; |
| } |
| |
| protected void adjustPoint(Point2D.Float pt) { |
| } |
| } |