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| 1 /* | |
| 2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | |
| 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> | |
| 4 * Copyright (C) 2008 Rob Buis <buis@kde.org> | |
| 5 * Copyright (C) Research In Motion Limited 2011. All rights reserved. | |
| 6 * | |
| 7 * This library is free software; you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Library General Public | |
| 9 * License as published by the Free Software Foundation; either | |
| 10 * version 2 of the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This library is distributed in the hope that it will be useful, | |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Library General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Library General Public License | |
| 18 * along with this library; see the file COPYING.LIB. If not, write to | |
| 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 20 * Boston, MA 02110-1301, USA. | |
| 21 */ | |
| 22 | |
| 23 #ifndef SVGGlyph_h | |
| 24 #define SVGGlyph_h | |
| 25 | |
| 26 #if ENABLE(SVG_FONTS) | |
| 27 #include "platform/PlatformExport.h" | |
| 28 #include "platform/fonts/Glyph.h" | |
| 29 #include "platform/graphics/Path.h" | |
| 30 | |
| 31 #include <limits> | |
| 32 #include "wtf/text/WTFString.h" | |
| 33 #include "wtf/Vector.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 // Describe a glyph from a SVG Font. | |
| 38 struct SVGGlyph { | |
| 39 enum Orientation { | |
| 40 Vertical, | |
| 41 Horizontal, | |
| 42 Both | |
| 43 }; | |
| 44 | |
| 45 // SVG Font depends on exactly this order. | |
| 46 enum ArabicForm { | |
| 47 None = 0, | |
| 48 Isolated, | |
| 49 Terminal, | |
| 50 Initial, | |
| 51 Medial | |
| 52 }; | |
| 53 | |
| 54 SVGGlyph() | |
| 55 : isPartOfLigature(false) | |
| 56 , orientation(Both) | |
| 57 , arabicForm(None) | |
| 58 , priority(0) | |
| 59 , tableEntry(0) | |
| 60 , unicodeStringLength(0) | |
| 61 , horizontalAdvanceX(0) | |
| 62 , verticalOriginX(0) | |
| 63 , verticalOriginY(0) | |
| 64 , verticalAdvanceY(0) | |
| 65 { | |
| 66 } | |
| 67 | |
| 68 // Used to mark our float properties as "to be inherited from SVGFontData" | |
| 69 static float inheritedValue() | |
| 70 { | |
| 71 static float s_inheritedValue = std::numeric_limits<float>::infinity(); | |
| 72 return s_inheritedValue; | |
| 73 } | |
| 74 | |
| 75 bool operator==(const SVGGlyph& other) const | |
| 76 { | |
| 77 return isPartOfLigature == other.isPartOfLigature | |
| 78 && orientation == other.orientation | |
| 79 && arabicForm == other.arabicForm | |
| 80 && tableEntry == other.tableEntry | |
| 81 && unicodeStringLength == other.unicodeStringLength | |
| 82 && glyphName == other.glyphName | |
| 83 && horizontalAdvanceX == other.horizontalAdvanceX | |
| 84 && verticalOriginX == other.verticalOriginX | |
| 85 && verticalOriginY == other.verticalOriginY | |
| 86 && verticalAdvanceY == other.verticalAdvanceY | |
| 87 && languages == other.languages; | |
| 88 } | |
| 89 | |
| 90 bool isPartOfLigature : 1; | |
| 91 | |
| 92 unsigned orientation : 2; // Orientation | |
| 93 unsigned arabicForm : 3; // ArabicForm | |
| 94 int priority; | |
| 95 Glyph tableEntry; | |
| 96 size_t unicodeStringLength; | |
| 97 String glyphName; | |
| 98 | |
| 99 float horizontalAdvanceX; | |
| 100 float verticalOriginX; | |
| 101 float verticalOriginY; | |
| 102 float verticalAdvanceY; | |
| 103 | |
| 104 Path pathData; | |
| 105 Vector<String> languages; | |
| 106 }; | |
| 107 | |
| 108 Vector<SVGGlyph::ArabicForm> PLATFORM_EXPORT charactersWithArabicForm(const Stri
ng& input, bool rtl); | |
| 109 bool PLATFORM_EXPORT isCompatibleGlyph(const SVGGlyph&, bool isVerticalText, con
st String& language, const Vector<SVGGlyph::ArabicForm>&, unsigned startPosition
, unsigned endPosition); | |
| 110 | |
| 111 } // namespace blink | |
| 112 | |
| 113 #endif // ENABLE(SVG_FONTS) | |
| 114 #endif | |
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