Showing the changes to java/pkg/sun/font/CharToGlyphMapper.java (1 of 18352 files). Show all
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| 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 | +/* | |
| 29 | + * NB the versions that take a char as an int are used by the opentype | |
| 30 | + * layout engine. If that remains in native these methods may not be | |
| 31 | + * needed in the Java class. | |
| 32 | + */ | |
| 33 | +public abstract class CharToGlyphMapper { | |
| 34 | + | |
| 35 | + public static final int HI_SURROGATE_START = 0xD800; | |
| 36 | + public static final int HI_SURROGATE_END = 0xDBFF; | |
| 37 | + public static final int LO_SURROGATE_START = 0xDC00; | |
| 38 | + public static final int LO_SURROGATE_END = 0xDFFF; | |
| 39 | + | |
| 40 | + public static final int UNINITIALIZED_GLYPH = -1; | |
| 41 | + public static final int INVISIBLE_GLYPH_ID = 0xffff; | |
| 42 | + public static final int INVISIBLE_GLYPHS = 0xfffe; // and above | |
| 43 | + | |
| 44 | + protected int missingGlyph = CharToGlyphMapper.UNINITIALIZED_GLYPH; | |
| 45 | + | |
| 46 | + public int getMissingGlyphCode() { | |
| 47 | + return missingGlyph; | |
| 48 | + } | |
| 49 | + | |
| 50 | + /* Default implementations of these methods may be overridden by | |
| 51 | + * subclasses which have special requirements or optimisations | |
| 52 | + */ | |
| 53 | + | |
| 54 | + public boolean canDisplay(char ch) { | |
| 55 | + int glyph = charToGlyph(ch); | |
| 56 | + return glyph != missingGlyph; | |
| 57 | + } | |
| 58 | + | |
| 59 | + public boolean canDisplay(int cp) { | |
| 60 | + int glyph = charToGlyph(cp); | |
| 61 | + return glyph != missingGlyph; | |
| 62 | + } | |
| 63 | + | |
| 64 | + public int charToGlyph(char unicode) { | |
| 65 | + char[] chars = new char[1]; | |
| 66 | + int[] glyphs = new int[1]; | |
| 67 | + chars[0] = unicode; | |
| 68 | + charsToGlyphs(1, chars, glyphs); | |
| 69 | + return glyphs[0]; | |
| 70 | + } | |
| 71 | + | |
| 72 | + public int charToGlyph(int unicode) { | |
| 73 | + int[] chars = new int[1]; | |
| 74 | + int [] glyphs = new int[1]; | |
| 75 | + chars[0] = unicode; | |
| 76 | + charsToGlyphs(1, chars, glyphs); | |
| 77 | + return glyphs[0]; | |
| 78 | + } | |
| 79 | + | |
| 80 | + public abstract int getNumGlyphs(); | |
| 81 | + | |
| 82 | + public abstract void charsToGlyphs(int count, | |
| 83 | + char[] unicodes, int[] glyphs); | |
| 84 | + | |
| 85 | + public abstract boolean charsToGlyphsNS(int count, | |
| 86 | + char[] unicodes, int[] glyphs); | |
| 87 | + | |
| 88 | + public abstract void charsToGlyphs(int count, | |
| 89 | + int[] unicodes, int[] glyphs); | |
| 90 | + | |
| 91 | +} | |