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 | } | ||