896 lines
33 KiB
C
896 lines
33 KiB
C
/*
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* Text analyzer
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*
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* Copyright 2011 Aric Stewart for CodeWeavers
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* Copyright 2012, 2014 Nikolay Sivov for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include "dwrite.h"
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#include "dwrite_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
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extern const unsigned short wine_linebreak_table[];
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enum scriptcode {
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Script_Arabic = 0,
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Script_Armenian = 1,
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Script_Balinese = 2,
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Script_Bengali = 3,
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Script_Buginese = 6,
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Script_Canadian = 8,
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Script_Cherokee = 11,
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Script_Controls = 12,
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Script_Coptic = 13,
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Script_Cyrillic = 16,
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Script_Devanagari = 18,
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Script_Ethiopic = 19,
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Script_Georgian = 20,
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Script_Glagolitic = 22,
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Script_Greek = 23,
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Script_Gujarati = 24,
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Script_Gurmukhi = 25,
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Script_Hangul = 27,
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Script_Hebrew = 29,
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Script_Kannada = 32,
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Script_Khmer = 36,
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Script_Lao = 37,
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Script_Latin = 38,
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Script_Lepcha = 39,
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Script_Limbu = 40,
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Script_Malayalam = 44,
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Script_Mongolian = 45,
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Script_Myanmar = 46,
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Script_New_TaiLue = 47,
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Script_NKo = 48,
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Script_Ogham = 49,
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Script_OlChiki = 50,
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Script_Oriya = 53,
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Script_Runic = 58,
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Script_Sinhala = 61,
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Script_Sundanese = 62,
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Script_Syriac = 64,
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Script_TaiLe = 67,
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Script_Tamil = 68,
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Script_Telugu = 69,
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Script_Thaana = 70,
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Script_Thai = 71,
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Script_Tibetan = 72,
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Script_Tifinagh = 73,
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Script_Symbol = 77,
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Script_Unknown = (UINT16)-1
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};
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struct script_range {
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UINT16 script;
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DWORD first;
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DWORD last;
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};
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static const struct script_range script_ranges[] = {
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/* C0 Controls: U+0000–U+001F */
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/* ASCII punctuation and symbols: U+0020–U+002F */
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/* ASCII digits: U+0030–U+0039 */
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/* ASCII punctuation and symbols: U+003A–U+0040 */
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{ Script_Symbol, 0x00, 0x040 },
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/* Latin uppercase: U+0041–U+005A */
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{ Script_Latin, 0x41, 0x5a },
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/* ASCII punctuation and symbols: U+005B–U+0060 */
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{ Script_Symbol, 0x5b, 0x060 },
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/* Latin lowercase: U+0061–U+007A */
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{ Script_Latin, 0x61, 0x7a },
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/* ASCII punctuation and symbols, control char DEL: U+007B–U+007F */
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{ Script_Symbol, 0x7b, 0x7f },
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/* C1 Controls: U+0080–U+009F */
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{ Script_Controls, 0x80, 0x9f },
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/* Latin-1 Supplement: U+00A0–U+00FF */
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/* Latin Extended-A: U+0100–U+017F */
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/* Latin Extended-B: U+0180–U+024F */
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/* IPA Extensions: U+0250–U+02AF */
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/* Spacing Modifier Letters: U+02B0–U+02FF */
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{ Script_Latin, 0xa0, 0x2ff },
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/* Combining Diacritical Marks: U+0300–U+036F */
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{ Script_Symbol, 0x300, 0x36f },
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/* Greek: U+0370–U+03E1 */
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{ Script_Greek, 0x370, 0x3e1 },
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/* Coptic: U+03E2–U+03Ef */
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{ Script_Coptic, 0x3e2, 0x3ef },
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/* Greek: U+03F0–U+03FF */
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{ Script_Greek, 0x3f0, 0x3ff },
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/* Cyrillic: U+0400–U+04FF */
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/* Cyrillic Supplement: U+0500–U+052F */
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/* Cyrillic Supplement range is incomplete cause it's based on Unicode 5.2
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that doesn't define some Abkhaz and Azerbaijani letters, we support Unicode 6.0 range here */
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{ Script_Cyrillic, 0x400, 0x52f },
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/* Armenian: U+0530–U+058F */
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{ Script_Armenian, 0x530, 0x58f },
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/* Hebrew: U+0590–U+05FF */
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{ Script_Hebrew, 0x590, 0x5ff },
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/* Arabic: U+0600–U+06FF */
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{ Script_Arabic, 0x600, 0x6ff },
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/* Syriac: U+0600–U+06FF */
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{ Script_Syriac, 0x700, 0x74f },
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/* Arabic Supplement: U+0750–U+077F */
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{ Script_Arabic, 0x750, 0x77f },
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/* Thaana: U+0780–U+07BF */
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{ Script_Thaana, 0x780, 0x7bf },
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/* N'Ko: U+07C0–U+07FF */
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{ Script_NKo, 0x7c0, 0x7ff },
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/* Devanagari: U+0900–U+097F */
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{ Script_Devanagari, 0x900, 0x97f },
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/* Bengali: U+0980–U+09FF */
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{ Script_Bengali, 0x980, 0x9ff },
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/* Gurmukhi: U+0A00–U+0A7F */
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{ Script_Gurmukhi, 0xa00, 0xa7f },
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/* Gujarati: U+0A80–U+0AFF */
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{ Script_Gujarati, 0xa80, 0xaff },
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/* Oriya: U+0B00–U+0B7F */
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{ Script_Oriya, 0xb00, 0xb7f },
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/* Tamil: U+0B80–U+0BFF */
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{ Script_Tamil, 0xb80, 0xbff },
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/* Telugu: U+0C00–U+0C7F */
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{ Script_Telugu, 0xc00, 0xc7f },
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/* Kannada: U+0C80–U+0CFF */
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{ Script_Kannada, 0xc80, 0xcff },
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/* Malayalam: U+0D00–U+0D7F */
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{ Script_Malayalam, 0xd00, 0xd7f },
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/* Sinhala: U+0D80–U+0DFF */
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{ Script_Sinhala, 0xd80, 0xdff },
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/* Thai: U+0E00–U+0E7F */
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{ Script_Thai, 0xe00, 0xe7f },
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/* Lao: U+0E80–U+0EFF */
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{ Script_Lao, 0xe80, 0xeff },
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/* Tibetan: U+0F00–U+0FFF */
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{ Script_Tibetan, 0xf00, 0xfff },
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/* Myanmar: U+1000–U+109F */
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{ Script_Myanmar, 0x1000, 0x109f },
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/* Georgian: U+10A0–U+10FF */
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{ Script_Georgian, 0x10a0, 0x10ff },
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/* Hangul Jamo: U+1100–U+11FF */
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{ Script_Hangul, 0x1100, 0x11ff },
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/* Ethiopic: U+1200–U+137F */
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/* Ethiopic Extensions: U+1380–U+139F */
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{ Script_Ethiopic, 0x1200, 0x139f },
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/* Cherokee: U+13A0–U+13FF */
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{ Script_Cherokee, 0x13a0, 0x13ff },
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/* Canadian Aboriginal Syllabics: U+1400–U+167F */
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{ Script_Canadian, 0x1400, 0x167f },
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/* Ogham: U+1680–U+169F */
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{ Script_Ogham, 0x1680, 0x169f },
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/* Runic: U+16A0–U+16F0 */
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{ Script_Runic, 0x16a0, 0x16f0 },
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/* Khmer: U+1780–U+17FF */
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{ Script_Khmer, 0x1780, 0x17ff },
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/* Mongolian: U+1800–U+18AF */
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{ Script_Mongolian, 0x1800, 0x18af },
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/* Limbu: U+1900–U+194F */
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{ Script_Limbu, 0x1900, 0x194f },
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/* Tai Le: U+1950–U+197F */
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{ Script_TaiLe, 0x1950, 0x197f },
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/* New Tai Lue: U+1980–U+19DF */
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{ Script_New_TaiLue, 0x1980, 0x19df },
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/* Khmer Symbols: U+19E0–U+19FF */
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{ Script_Khmer, 0x19e0, 0x19ff },
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/* Buginese: U+1A00–U+1A1F */
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{ Script_Buginese, 0x1a00, 0x1a1f },
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/* Tai Tham: U+1A20–U+1AAF */
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{ Script_Symbol, 0x1a20, 0x1aaf },
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/* Balinese: U+1B00–U+1B7F */
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{ Script_Balinese, 0x1b00, 0x1b7f },
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/* Sundanese: U+1B80–U+1BBF */
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{ Script_Sundanese, 0x1b80, 0x1bbf },
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/* Batak: U+1BC0–U+1BFF */
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{ Script_Symbol, 0x1bc0, 0x1bff },
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/* Lepcha: U+1C00–U+1C4F */
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{ Script_Lepcha, 0x1c00, 0x1c4f },
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/* Ol Chiki: U+1C50–U+1C7F */
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{ Script_OlChiki, 0x1c50, 0x1c7f },
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/* Sundanese Supplement: U+1CC0–U+1CCF */
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{ Script_Symbol, 0x1cc0, 0x1ccf },
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/* Vedic Extensions: U+1CD0-U+1CFF */
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{ Script_Devanagari, 0x1cd0, 0x1cff },
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/* Phonetic Extensions: U+1D00–U+1DBF */
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{ Script_Latin, 0x1d00, 0x1dbf },
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/* Combining Diacritical Marks Supplement: U+1DC0–U+1DFF */
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{ Script_Symbol, 0x1dc0, 0x1dff },
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/* Latin Extended Additional: U+1E00–U+1EFF */
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{ Script_Latin, 0x1e00, 0x1eff },
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/* Greek Extended: U+1F00–U+1F00 */
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{ Script_Greek, 0x1f00, 0x1fff },
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/* General Punctuation: U+2000–U+206f */
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/* Superscripts and Subscripts: U+2070–U+209f */
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/* Currency Symbols: U+20A0–U+20CF */
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/* Combining Diacritical Marks for Symbols: U+20D0–U+20FF */
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/* Letterlike Symbols: U+2100–U+214F */
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/* Number Forms: U+2150–U+218F */
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/* Arrows: U+2190–U+21FF */
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/* Mathematical Operators: U+2200–U+22FF */
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/* Miscellaneous Technical: U+2300–U+23FF */
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/* Control Pictures: U+2400–U+243F */
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/* Optical Character Recognition: U+2440–U+245F */
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/* Enclosed Alphanumerics: U+2460–U+24FF */
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/* Box Drawing: U+2500–U+25FF */
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/* Block Elements: U+2580–U+259F */
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/* Geometric Shapes: U+25A0–U+25FF */
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/* Miscellaneous Symbols: U+2600–U+26FF */
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/* Dingbats: U+2700–U+27BF */
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/* Miscellaneous Mathematical Symbols-A: U+27C0–U+27EF */
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/* Supplemental Arrows-A: U+27F0–U+27FF */
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/* Braille Patterns: U+2800–U+28FF */
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/* Supplemental Arrows-B: U+2900–U+297F */
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/* Miscellaneous Mathematical Symbols-B: U+2980–U+29FF */
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/* Supplemental Mathematical Operators: U+2A00–U+2AFF */
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/* Miscellaneous Symbols and Arrows: U+2B00–U+2BFF */
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{ Script_Symbol, 0x2000, 0x2bff },
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/* Glagolitic: U+2C00–U+2C5F */
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{ Script_Glagolitic, 0x2c00, 0x2c5f },
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/* Latin Extended-C: U+2C60–U+2C7F */
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{ Script_Latin, 0x2c60, 0x2c7f },
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/* Coptic: U+2C80–U+2CFF */
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{ Script_Coptic, 0x2c80, 0x2cff },
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/* Georgian Supplement: U+2D00–U+2D2F */
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{ Script_Georgian, 0x2d00, 0x2d2f },
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/* Tifinagh: U+2D30–U+2D7F */
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{ Script_Tifinagh, 0x2d30, 0x2d7f },
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/* unsupported range */
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{ Script_Unknown }
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};
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static UINT16 get_char_script( WCHAR c )
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{
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DWORD ch = c;
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unsigned int i;
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for (i = 0; i < sizeof(script_ranges)/sizeof(struct script_range); i++)
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{
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const struct script_range *range = &script_ranges[i];
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if (range->script == Script_Unknown || (range->first <= ch && range->last >= ch))
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return range->script;
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}
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return Script_Unknown;
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}
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static HRESULT analyze_script(const WCHAR *text, UINT32 len, IDWriteTextAnalysisSink *sink)
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{
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DWRITE_SCRIPT_ANALYSIS sa;
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UINT32 pos, i, length;
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if (!len) return S_OK;
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sa.script = get_char_script(*text);
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pos = 0;
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length = 1;
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for (i = 1; i < len; i++)
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{
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UINT16 script = get_char_script(text[i]);
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/* Script_Latin_Symb script type is ignored when preceded or followed by another script */
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if (sa.script == Script_Symbol) sa.script = script;
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if (script == Script_Symbol) script = sa.script;
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/* this is a length of a sequence to be reported next */
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if (sa.script == script) length++;
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if (sa.script != script)
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{
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HRESULT hr;
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sa.shapes = sa.script != Script_Controls ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
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hr = IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
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if (FAILED(hr)) return hr;
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pos = i;
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length = 1;
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sa.script = script;
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}
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}
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/* 1 length case or normal completion call */
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sa.shapes = sa.script != Script_Controls ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
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return IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
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}
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struct linebreaking_state {
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DWRITE_LINE_BREAKPOINT *breakpoints;
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UINT32 count;
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};
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enum BreakConditionLocation {
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BreakConditionBefore,
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BreakConditionAfter
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};
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enum linebreaking_classes {
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b_BK = 1,
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b_CR,
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b_LF,
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b_CM,
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b_SG,
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b_GL,
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b_CB,
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b_SP,
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b_ZW,
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b_NL,
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b_WJ,
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b_JL,
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b_JV,
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b_JT,
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b_H2,
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b_H3,
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b_XX,
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b_OP,
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b_CL,
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b_CP,
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b_QU,
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b_NS,
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b_EX,
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b_SY,
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b_IS,
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b_PR,
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b_PO,
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b_NU,
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b_AL,
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b_ID,
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b_IN,
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b_HY,
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b_BB,
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b_BA,
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b_SA,
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b_AI,
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b_B2,
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b_HL,
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b_CJ,
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b_RI
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};
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/* "Can break" is a weak condition, stronger "may not break" and "must break" override it. Initially all conditions are
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set to "can break" and could only be changed once. */
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static inline void set_break_condition(UINT32 pos, enum BreakConditionLocation location, DWRITE_BREAK_CONDITION condition,
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struct linebreaking_state *state)
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{
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if (location == BreakConditionBefore) {
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if (state->breakpoints[pos].breakConditionBefore != DWRITE_BREAK_CONDITION_CAN_BREAK)
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return;
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state->breakpoints[pos].breakConditionBefore = condition;
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if (pos > 0)
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state->breakpoints[pos-1].breakConditionAfter = condition;
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}
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else {
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if (state->breakpoints[pos].breakConditionAfter != DWRITE_BREAK_CONDITION_CAN_BREAK)
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return;
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state->breakpoints[pos].breakConditionAfter = condition;
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if (pos + 1 < state->count)
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state->breakpoints[pos+1].breakConditionBefore = condition;
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}
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}
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static inline WCHAR get_table_entry(const unsigned short *table, WCHAR ch)
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{
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return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
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}
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static HRESULT analyze_linebreaks(const WCHAR *text, UINT32 count, DWRITE_LINE_BREAKPOINT *breakpoints)
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{
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struct linebreaking_state state;
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short *break_class;
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int i, j;
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break_class = heap_alloc(count*sizeof(short));
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if (!break_class)
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return E_OUTOFMEMORY;
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state.breakpoints = breakpoints;
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state.count = count;
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/* LB31 - allow breaks everywhere. It will be overridden if needed as
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other rules dictate. */
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for (i = 0; i < count; i++)
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{
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break_class[i] = get_table_entry(wine_linebreak_table, text[i]);
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breakpoints[i].breakConditionBefore = DWRITE_BREAK_CONDITION_CAN_BREAK;
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breakpoints[i].breakConditionAfter = DWRITE_BREAK_CONDITION_CAN_BREAK;
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breakpoints[i].isWhitespace = break_class[i] == b_BK || break_class[i] == b_ZW || break_class[i] == b_SP || isspaceW(text[i]);
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breakpoints[i].isSoftHyphen = FALSE;
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breakpoints[i].padding = 0;
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/* LB1 - resolve some classes. TODO: use external algorithms for these classes. */
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switch (break_class[i])
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{
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case b_AI:
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case b_SA:
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case b_SG:
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case b_XX:
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break_class[i] = b_AL;
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break;
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case b_CJ:
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break_class[i] = b_NS;
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break;
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}
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}
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/* LB2 - never break at the start */
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set_break_condition(0, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
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/* LB3 - always break at the end. This one is ignored. */
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for (i = 0; i < count; i++)
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{
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switch (break_class[i])
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{
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/* LB4 - LB6 */
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case b_CR:
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/* LB5 - don't break CR x LF */
|
||
if (i < count-1 && break_class[i+1] == b_LF)
|
||
{
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
}
|
||
case b_LF:
|
||
case b_NL:
|
||
case b_BK:
|
||
/* LB4 - LB5 - always break after hard breaks */
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MUST_BREAK, &state);
|
||
/* LB6 - do not break before hard breaks */
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB7 - do not break before spaces */
|
||
case b_SP:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
case b_ZW:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
/* LB8 - break before character after zero-width space, skip spaces inbetween */
|
||
while (i < count-1 && break_class[i+1] == b_SP)
|
||
i++;
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* LB9 - LB10 */
|
||
for (i = 0; i < count; i++)
|
||
{
|
||
if (break_class[i] == b_CM)
|
||
{
|
||
if (i > 0)
|
||
{
|
||
switch (break_class[i-1])
|
||
{
|
||
case b_SP:
|
||
case b_BK:
|
||
case b_CR:
|
||
case b_LF:
|
||
case b_NL:
|
||
case b_ZW:
|
||
break_class[i] = b_AL;
|
||
break;
|
||
default:
|
||
break_class[i] = break_class[i-1];
|
||
}
|
||
}
|
||
else break_class[i] = b_AL;
|
||
}
|
||
}
|
||
|
||
for (i = 0; i < count; i++)
|
||
{
|
||
switch (break_class[i])
|
||
{
|
||
/* LB11 - don't break before and after word joiner */
|
||
case b_WJ:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB12 - don't break after glue */
|
||
case b_GL:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
/* LB12a */
|
||
if (i > 0)
|
||
{
|
||
if (break_class[i-1] != b_SP && break_class[i-1] != b_BA && break_class[i-1] != b_HY)
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
break;
|
||
/* LB13 */
|
||
case b_CL:
|
||
case b_CP:
|
||
case b_EX:
|
||
case b_IS:
|
||
case b_SY:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB14 */
|
||
case b_OP:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
while (i < count-1 && break_class[i+1] == b_SP) {
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
i++;
|
||
}
|
||
break;
|
||
/* LB15 */
|
||
case b_QU:
|
||
j = i+1;
|
||
while (j < count-1 && break_class[j] == b_SP)
|
||
j++;
|
||
if (break_class[j] == b_OP)
|
||
for (; j > i; j--)
|
||
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB16 */
|
||
case b_NS:
|
||
j = i-1;
|
||
while(j > 0 && break_class[j] == b_SP)
|
||
j--;
|
||
if (break_class[j] == b_CL || break_class[j] == b_CP)
|
||
for (j++; j <= i; j++)
|
||
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB17 */
|
||
case b_B2:
|
||
j = i+1;
|
||
while (j < count && break_class[j] == b_SP)
|
||
j++;
|
||
if (break_class[j] == b_B2)
|
||
for (; j > i; j--)
|
||
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
}
|
||
}
|
||
|
||
for (i = 0; i < count; i++)
|
||
{
|
||
switch(break_class[i])
|
||
{
|
||
/* LB18 - break is allowed after space */
|
||
case b_SP:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
||
break;
|
||
/* LB19 - don't break before or after quotation mark */
|
||
case b_QU:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB20 */
|
||
case b_CB:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
||
break;
|
||
/* LB21 */
|
||
case b_BA:
|
||
case b_HY:
|
||
case b_NS:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
case b_BB:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
break;
|
||
/* LB21a */
|
||
case b_HL:
|
||
if (i < count-2)
|
||
switch (break_class[i+1])
|
||
{
|
||
case b_HY:
|
||
case b_BA:
|
||
set_break_condition(i+1, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
break;
|
||
/* LB22 */
|
||
case b_IN:
|
||
if (i > 0)
|
||
{
|
||
switch (break_class[i-1])
|
||
{
|
||
case b_AL:
|
||
case b_HL:
|
||
case b_ID:
|
||
case b_IN:
|
||
case b_NU:
|
||
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
if (i < count-1)
|
||
{
|
||
/* LB23 */
|
||
if ((break_class[i] == b_ID && break_class[i+1] == b_PO) ||
|
||
(break_class[i] == b_AL && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_HL && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_NU && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_NU && break_class[i+1] == b_HL))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
/* LB24 */
|
||
if ((break_class[i] == b_PR && break_class[i+1] == b_ID) ||
|
||
(break_class[i] == b_PR && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_PR && break_class[i+1] == b_HL) ||
|
||
(break_class[i] == b_PO && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_PO && break_class[i+1] == b_HL))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB25 */
|
||
if ((break_class[i] == b_CL && break_class[i+1] == b_PO) ||
|
||
(break_class[i] == b_CP && break_class[i+1] == b_PO) ||
|
||
(break_class[i] == b_CL && break_class[i+1] == b_PR) ||
|
||
(break_class[i] == b_CP && break_class[i+1] == b_PR) ||
|
||
(break_class[i] == b_NU && break_class[i+1] == b_PO) ||
|
||
(break_class[i] == b_NU && break_class[i+1] == b_PR) ||
|
||
(break_class[i] == b_PO && break_class[i+1] == b_OP) ||
|
||
(break_class[i] == b_PO && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_PR && break_class[i+1] == b_OP) ||
|
||
(break_class[i] == b_PR && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_HY && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_IS && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_NU && break_class[i+1] == b_NU) ||
|
||
(break_class[i] == b_SY && break_class[i+1] == b_NU))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB26 */
|
||
if (break_class[i] == b_JL)
|
||
{
|
||
switch (break_class[i+1])
|
||
{
|
||
case b_JL:
|
||
case b_JV:
|
||
case b_H2:
|
||
case b_H3:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
}
|
||
if ((break_class[i] == b_JV || break_class[i] == b_H2) &&
|
||
(break_class[i+1] == b_JV || break_class[i+1] == b_JT))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
if ((break_class[i] == b_JT || break_class[i] == b_H3) &&
|
||
break_class[i+1] == b_JT)
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB27 */
|
||
switch (break_class[i])
|
||
{
|
||
case b_JL:
|
||
case b_JV:
|
||
case b_JT:
|
||
case b_H2:
|
||
case b_H3:
|
||
if (break_class[i+1] == b_IN || break_class[i+1] == b_PO)
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
if (break_class[i] == b_PO)
|
||
{
|
||
switch (break_class[i+1])
|
||
{
|
||
case b_JL:
|
||
case b_JV:
|
||
case b_JT:
|
||
case b_H2:
|
||
case b_H3:
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
}
|
||
|
||
/* LB28 */
|
||
if ((break_class[i] == b_AL && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_AL && break_class[i+1] == b_HL) ||
|
||
(break_class[i] == b_HL && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_HL && break_class[i+1] == b_HL))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB29 */
|
||
if ((break_class[i] == b_IS && break_class[i+1] == b_AL) ||
|
||
(break_class[i] == b_IS && break_class[i+1] == b_HL))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB30 */
|
||
if ((break_class[i] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU) &&
|
||
break_class[i+1] == b_OP)
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
if (break_class[i] == b_CP &&
|
||
(break_class[i+1] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU))
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
|
||
/* LB30a */
|
||
if (break_class[i] == b_RI && break_class[i+1] == b_RI)
|
||
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
||
}
|
||
}
|
||
|
||
heap_free(break_class);
|
||
return S_OK;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_QueryInterface(IDWriteTextAnalyzer *iface, REFIID riid, void **obj)
|
||
{
|
||
TRACE("(%s %p)\n", debugstr_guid(riid), obj);
|
||
|
||
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteTextAnalyzer))
|
||
{
|
||
*obj = iface;
|
||
return S_OK;
|
||
}
|
||
|
||
*obj = NULL;
|
||
return E_NOINTERFACE;
|
||
|
||
}
|
||
|
||
static ULONG WINAPI dwritetextanalyzer_AddRef(IDWriteTextAnalyzer *iface)
|
||
{
|
||
return 2;
|
||
}
|
||
|
||
static ULONG WINAPI dwritetextanalyzer_Release(IDWriteTextAnalyzer *iface)
|
||
{
|
||
return 1;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer *iface,
|
||
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
||
{
|
||
const WCHAR *text;
|
||
HRESULT hr;
|
||
UINT32 len;
|
||
|
||
TRACE("(%p %u %u %p)\n", source, position, length, sink);
|
||
|
||
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
|
||
if (FAILED(hr)) return hr;
|
||
|
||
return analyze_script(text, len, sink);
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_AnalyzeBidi(IDWriteTextAnalyzer *iface,
|
||
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
||
{
|
||
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_AnalyzeNumberSubstitution(IDWriteTextAnalyzer *iface,
|
||
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
||
{
|
||
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_AnalyzeLineBreakpoints(IDWriteTextAnalyzer *iface,
|
||
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
||
{
|
||
DWRITE_LINE_BREAKPOINT *breakpoints = NULL;
|
||
WCHAR *buff = NULL;
|
||
const WCHAR *text;
|
||
HRESULT hr;
|
||
UINT32 len;
|
||
|
||
TRACE("(%p %u %u %p)\n", source, position, length, sink);
|
||
|
||
if (length == 0)
|
||
return S_OK;
|
||
|
||
/* get some, check for length */
|
||
text = NULL;
|
||
len = 0;
|
||
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
|
||
if (FAILED(hr)) return hr;
|
||
|
||
if (len < length) {
|
||
UINT32 read;
|
||
|
||
buff = heap_alloc(length*sizeof(WCHAR));
|
||
if (!buff)
|
||
return E_OUTOFMEMORY;
|
||
memcpy(buff, text, len*sizeof(WCHAR));
|
||
read = len;
|
||
|
||
while (read < length && text) {
|
||
text = NULL;
|
||
len = 0;
|
||
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, read, &text, &len);
|
||
if (FAILED(hr))
|
||
goto done;
|
||
memcpy(&buff[read], text, min(len, length-read)*sizeof(WCHAR));
|
||
read += len;
|
||
}
|
||
|
||
text = buff;
|
||
}
|
||
|
||
breakpoints = heap_alloc(length*sizeof(*breakpoints));
|
||
if (!breakpoints) {
|
||
hr = E_OUTOFMEMORY;
|
||
goto done;
|
||
}
|
||
|
||
hr = analyze_linebreaks(text, length, breakpoints);
|
||
if (FAILED(hr))
|
||
goto done;
|
||
|
||
hr = IDWriteTextAnalysisSink_SetLineBreakpoints(sink, position, length, breakpoints);
|
||
|
||
done:
|
||
heap_free(breakpoints);
|
||
heap_free(buff);
|
||
|
||
return hr;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_GetGlyphs(IDWriteTextAnalyzer *iface,
|
||
WCHAR const* text, UINT32 length, IDWriteFontFace* font_face, BOOL is_sideways,
|
||
BOOL is_rtl, DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale,
|
||
IDWriteNumberSubstitution* substitution, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
||
UINT32 const* feature_range_len, UINT32 feature_ranges, UINT32 max_glyph_count,
|
||
UINT16* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* text_props, UINT16* glyph_indices,
|
||
DWRITE_SHAPING_GLYPH_PROPERTIES* glyph_props, UINT32* actual_glyph_count)
|
||
{
|
||
FIXME("(%s:%u %p %d %d %p %s %p %p %p %u %u %p %p %p %p %p): stub\n", debugstr_wn(text, length),
|
||
length, font_face, is_sideways, is_rtl, analysis, debugstr_w(locale), substitution, features, feature_range_len,
|
||
feature_ranges, max_glyph_count, clustermap, text_props, glyph_indices, glyph_props, actual_glyph_count);
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_GetGlyphPlacements(IDWriteTextAnalyzer *iface,
|
||
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
|
||
UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
|
||
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, BOOL is_sideways, BOOL is_rtl,
|
||
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
||
UINT32 const* feature_range_len, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
|
||
{
|
||
FIXME("(%s %p %p %u %p %p %u %p %f %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
|
||
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, is_sideways,
|
||
is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, glyph_advances, glyph_offsets);
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer *iface,
|
||
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
|
||
UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
|
||
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, FLOAT pixels_per_dip,
|
||
DWRITE_MATRIX const* transform, BOOL use_gdi_natural, BOOL is_sideways, BOOL is_rtl,
|
||
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
||
UINT32 const* feature_range_lengths, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
|
||
{
|
||
FIXME("(%s %p %p %u %p %p %u %p %f %f %p %d %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
|
||
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, pixels_per_dip,
|
||
transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
|
||
feature_ranges, glyph_advances, glyph_offsets);
|
||
return E_NOTIMPL;
|
||
}
|
||
|
||
static const struct IDWriteTextAnalyzerVtbl textanalyzervtbl = {
|
||
dwritetextanalyzer_QueryInterface,
|
||
dwritetextanalyzer_AddRef,
|
||
dwritetextanalyzer_Release,
|
||
dwritetextanalyzer_AnalyzeScript,
|
||
dwritetextanalyzer_AnalyzeBidi,
|
||
dwritetextanalyzer_AnalyzeNumberSubstitution,
|
||
dwritetextanalyzer_AnalyzeLineBreakpoints,
|
||
dwritetextanalyzer_GetGlyphs,
|
||
dwritetextanalyzer_GetGlyphPlacements,
|
||
dwritetextanalyzer_GetGdiCompatibleGlyphPlacements
|
||
};
|
||
|
||
static IDWriteTextAnalyzer textanalyzer = { &textanalyzervtbl };
|
||
|
||
HRESULT get_textanalyzer(IDWriteTextAnalyzer **ret)
|
||
{
|
||
*ret = &textanalyzer;
|
||
return S_OK;
|
||
}
|