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| 1 /* | |
| 2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "platform/fonts/harfbuzz/FontPlatformDataHarfBuzz.h" | |
| 33 | |
| 34 #include "SkTypeface.h" | |
| 35 #include "platform/fonts/harfbuzz/HarfBuzzFace.h" | |
| 36 #include "wtf/text/WTFString.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 FontPlatformData::FontPlatformData(WTF::HashTableDeletedValueType) | |
| 41 : m_textSize(0) | |
| 42 , m_syntheticBold(false) | |
| 43 , m_syntheticItalic(false) | |
| 44 , m_orientation(Horizontal) | |
| 45 , m_isHashTableDeletedValue(true) | |
| 46 { | |
| 47 } | |
| 48 | |
| 49 FontPlatformData::FontPlatformData() | |
| 50 : m_textSize(0) | |
| 51 , m_syntheticBold(false) | |
| 52 , m_syntheticItalic(false) | |
| 53 , m_orientation(Horizontal) | |
| 54 , m_isHashTableDeletedValue(false) | |
| 55 { | |
| 56 } | |
| 57 | |
| 58 FontPlatformData::FontPlatformData(float textSize, bool syntheticBold, bool synt
heticItalic) | |
| 59 : m_textSize(textSize) | |
| 60 , m_syntheticBold(syntheticBold) | |
| 61 , m_syntheticItalic(syntheticItalic) | |
| 62 , m_orientation(Horizontal) | |
| 63 , m_isHashTableDeletedValue(false) | |
| 64 { | |
| 65 } | |
| 66 | |
| 67 FontPlatformData::FontPlatformData(const FontPlatformData& src) | |
| 68 : m_typeface(src.m_typeface) | |
| 69 , m_family(src.m_family) | |
| 70 , m_textSize(src.m_textSize) | |
| 71 , m_syntheticBold(src.m_syntheticBold) | |
| 72 , m_syntheticItalic(src.m_syntheticItalic) | |
| 73 , m_orientation(src.m_orientation) | |
| 74 , m_style(src.m_style) | |
| 75 , m_harfBuzzFace(nullptr) | |
| 76 , m_isHashTableDeletedValue(false) | |
| 77 { | |
| 78 } | |
| 79 | |
| 80 FontPlatformData::FontPlatformData(PassRefPtr<SkTypeface> tf, const char* family
, float textSize, bool syntheticBold, bool syntheticItalic, FontOrientation orie
ntation, bool subpixelTextPosition) | |
| 81 : m_typeface(tf) | |
| 82 , m_family(family) | |
| 83 , m_textSize(textSize) | |
| 84 , m_syntheticBold(syntheticBold) | |
| 85 , m_syntheticItalic(syntheticItalic) | |
| 86 , m_orientation(orientation) | |
| 87 , m_isHashTableDeletedValue(false) | |
| 88 { | |
| 89 querySystemForRenderStyle(subpixelTextPosition); | |
| 90 } | |
| 91 | |
| 92 FontPlatformData::FontPlatformData(const FontPlatformData& src, float textSize) | |
| 93 : m_typeface(src.m_typeface) | |
| 94 , m_family(src.m_family) | |
| 95 , m_textSize(textSize) | |
| 96 , m_syntheticBold(src.m_syntheticBold) | |
| 97 , m_syntheticItalic(src.m_syntheticItalic) | |
| 98 , m_orientation(src.m_orientation) | |
| 99 , m_harfBuzzFace(nullptr) | |
| 100 , m_isHashTableDeletedValue(false) | |
| 101 { | |
| 102 querySystemForRenderStyle(FontDescription::subpixelPositioning()); | |
| 103 } | |
| 104 | |
| 105 FontPlatformData::~FontPlatformData() | |
| 106 { | |
| 107 } | |
| 108 | |
| 109 FontPlatformData& FontPlatformData::operator=(const FontPlatformData& src) | |
| 110 { | |
| 111 m_typeface = src.m_typeface; | |
| 112 m_family = src.m_family; | |
| 113 m_textSize = src.m_textSize; | |
| 114 m_syntheticBold = src.m_syntheticBold; | |
| 115 m_syntheticItalic = src.m_syntheticItalic; | |
| 116 m_harfBuzzFace = nullptr; | |
| 117 m_orientation = src.m_orientation; | |
| 118 m_style = src.m_style; | |
| 119 return *this; | |
| 120 } | |
| 121 | |
| 122 #ifndef NDEBUG | |
| 123 String FontPlatformData::description() const | |
| 124 { | |
| 125 return String(); | |
| 126 } | |
| 127 #endif | |
| 128 | |
| 129 SkFontID FontPlatformData::uniqueID() const | |
| 130 { | |
| 131 return m_typeface->uniqueID(); | |
| 132 } | |
| 133 | |
| 134 String FontPlatformData::fontFamilyName() const | |
| 135 { | |
| 136 // FIXME(crbug.com/326582): come up with a proper way of handling SVG. | |
| 137 if (!this->typeface()) | |
| 138 return ""; | |
| 139 SkTypeface::LocalizedStrings* fontFamilyIterator = this->typeface()->createF
amilyNameIterator(); | |
| 140 SkTypeface::LocalizedString localizedString; | |
| 141 while (fontFamilyIterator->next(&localizedString) && !localizedString.fStrin
g.size()) { } | |
| 142 fontFamilyIterator->unref(); | |
| 143 return String(localizedString.fString.c_str()); | |
| 144 } | |
| 145 | |
| 146 bool FontPlatformData::operator==(const FontPlatformData& a) const | |
| 147 { | |
| 148 // If either of the typeface pointers are null then we test for pointer | |
| 149 // equality. Otherwise, we call SkTypeface::Equal on the valid pointers. | |
| 150 bool typefacesEqual; | |
| 151 if (!m_typeface || !a.m_typeface) | |
| 152 typefacesEqual = m_typeface == a.m_typeface; | |
| 153 else | |
| 154 typefacesEqual = SkTypeface::Equal(m_typeface.get(), a.m_typeface.get())
; | |
| 155 | |
| 156 return typefacesEqual | |
| 157 && m_textSize == a.m_textSize | |
| 158 && m_syntheticBold == a.m_syntheticBold | |
| 159 && m_syntheticItalic == a.m_syntheticItalic | |
| 160 && m_orientation == a.m_orientation | |
| 161 && m_style == a.m_style | |
| 162 && m_isHashTableDeletedValue == a.m_isHashTableDeletedValue; | |
| 163 } | |
| 164 | |
| 165 bool FontPlatformData::isFixedPitch() const | |
| 166 { | |
| 167 return typeface() && typeface()->isFixedPitch(); | |
| 168 } | |
| 169 | |
| 170 HarfBuzzFace* FontPlatformData::harfBuzzFace() const | |
| 171 { | |
| 172 if (!m_harfBuzzFace) | |
| 173 m_harfBuzzFace = HarfBuzzFace::create(const_cast<FontPlatformData*>(this
), uniqueID()); | |
| 174 | |
| 175 return m_harfBuzzFace.get(); | |
| 176 } | |
| 177 | |
| 178 } // namespace blink | |
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