389 lines
14 KiB
C
389 lines
14 KiB
C
/*
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* Text analyzer
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*
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* Copyright 2012 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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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
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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_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_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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/* 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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static HRESULT WINAPI dwritetextanalyzer_QueryInterface(IDWriteTextAnalyzer *iface, REFIID riid, void **obj)
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{
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TRACE("(%s %p)\n", debugstr_guid(riid), obj);
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if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteTextAnalyzer))
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{
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*obj = iface;
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return S_OK;
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}
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*obj = NULL;
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return E_NOINTERFACE;
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}
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static ULONG WINAPI dwritetextanalyzer_AddRef(IDWriteTextAnalyzer *iface)
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{
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return 2;
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}
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static ULONG WINAPI dwritetextanalyzer_Release(IDWriteTextAnalyzer *iface)
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{
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return 1;
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}
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static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer *iface,
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IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
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{
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const WCHAR *text;
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HRESULT hr;
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UINT32 len;
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TRACE("(%p %u %u %p)\n", source, position, length, sink);
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hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
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if (FAILED(hr)) return hr;
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return analyze_script(text, len, sink);
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}
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static HRESULT WINAPI dwritetextanalyzer_AnalyzeBidi(IDWriteTextAnalyzer *iface,
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IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
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{
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FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI dwritetextanalyzer_AnalyzeNumberSubstitution(IDWriteTextAnalyzer *iface,
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IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
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{
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FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI dwritetextanalyzer_AnalyzeLineBreakpoints(IDWriteTextAnalyzer *iface,
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IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
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{
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FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI dwritetextanalyzer_GetGlyphs(IDWriteTextAnalyzer *iface,
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WCHAR const* text, UINT32 length, IDWriteFontFace* font_face, BOOL is_sideways,
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BOOL is_rtl, DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale,
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IDWriteNumberSubstitution* substitution, DWRITE_TYPOGRAPHIC_FEATURES const** features,
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UINT32 const* feature_range_len, UINT32 feature_ranges, UINT32 max_glyph_count,
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UINT16* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* text_props, UINT16* glyph_indices,
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DWRITE_SHAPING_GLYPH_PROPERTIES* glyph_props, UINT32* actual_glyph_count)
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{
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FIXME("(%s:%u %p %d %d %p %s %p %p %p %u %u %p %p %p %p %p): stub\n", debugstr_wn(text, length),
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length, font_face, is_sideways, is_rtl, analysis, debugstr_w(locale), substitution, features, feature_range_len,
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feature_ranges, max_glyph_count, clustermap, text_props, glyph_indices, glyph_props, actual_glyph_count);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI dwritetextanalyzer_GetGlyphPlacements(IDWriteTextAnalyzer *iface,
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WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
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UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
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UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, BOOL is_sideways, BOOL is_rtl,
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DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
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UINT32 const* feature_range_len, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
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{
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FIXME("(%s %p %p %u %p %p %u %p %f %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
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clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, is_sideways,
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is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, glyph_advances, glyph_offsets);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer *iface,
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WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
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UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
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UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, FLOAT pixels_per_dip,
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DWRITE_MATRIX const* transform, BOOL use_gdi_natural, BOOL is_sideways, BOOL is_rtl,
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DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
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UINT32 const* feature_range_lengths, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
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{
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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),
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clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, pixels_per_dip,
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transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
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feature_ranges, glyph_advances, glyph_offsets);
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return E_NOTIMPL;
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}
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static const struct IDWriteTextAnalyzerVtbl textanalyzervtbl = {
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dwritetextanalyzer_QueryInterface,
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dwritetextanalyzer_AddRef,
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dwritetextanalyzer_Release,
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dwritetextanalyzer_AnalyzeScript,
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dwritetextanalyzer_AnalyzeBidi,
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dwritetextanalyzer_AnalyzeNumberSubstitution,
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dwritetextanalyzer_AnalyzeLineBreakpoints,
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dwritetextanalyzer_GetGlyphs,
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dwritetextanalyzer_GetGlyphPlacements,
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dwritetextanalyzer_GetGdiCompatibleGlyphPlacements
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};
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static IDWriteTextAnalyzer textanalyzer = { &textanalyzervtbl };
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HRESULT get_textanalyzer(IDWriteTextAnalyzer **ret)
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{
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*ret = &textanalyzer;
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return S_OK;
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}
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