epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
djsollen@google.com | 9714516 | 2012-05-31 19:55:08 +0000 | [diff] [blame] | 8 | #include "SkFontDescriptor.h" |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 9 | #include "SkFontHost_FreeType_common.h" |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 10 | #include "SkFontMgr.h" |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 11 | #include "SkFontMgr_custom.h" |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 12 | #include "SkFontStyle.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkOSFile.h" |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 14 | #include "SkRefCnt.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | #include "SkStream.h" |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 16 | #include "SkString.h" |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 17 | #include "SkTArray.h" |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 18 | #include "SkTemplates.h" |
| 19 | #include "SkTypeface.h" |
| 20 | #include "SkTypefaceCache.h" |
| 21 | #include "SkTypes.h" |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 22 | |
| 23 | #include <limits> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 25 | class SkData; |
| 26 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 27 | /** The base SkTypeface implementation for the custom font manager. */ |
| 28 | class SkTypeface_Custom : public SkTypeface_FreeType { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 30 | SkTypeface_Custom(const SkFontStyle& style, bool isFixedPitch, |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 31 | bool sysFont, const SkString familyName, int index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 32 | : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 33 | , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 34 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 35 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 36 | bool isSysFont() const { return fIsSysFont; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 37 | |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 38 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 39 | void onGetFamilyName(SkString* familyName) const override { |
bungeman | b374d6a | 2014-09-17 07:48:59 -0700 | [diff] [blame] | 40 | *familyName = fFamilyName; |
| 41 | } |
| 42 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 43 | void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 44 | desc->setFamilyName(fFamilyName.c_str()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 45 | *isLocal = !this->isSysFont(); |
| 46 | } |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 47 | |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 48 | int getIndex() const { return fIndex; } |
| 49 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 50 | private: |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 51 | const bool fIsSysFont; |
| 52 | const SkString fFamilyName; |
| 53 | const int fIndex; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 54 | |
reed@google.com | 032fbb8 | 2013-03-21 13:38:18 +0000 | [diff] [blame] | 55 | typedef SkTypeface_FreeType INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 56 | }; |
| 57 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 58 | /** The empty SkTypeface implementation for the custom font manager. |
| 59 | * Used as the last resort fallback typeface. |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 60 | */ |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 61 | class SkTypeface_Empty : public SkTypeface_Custom { |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 62 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 63 | SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 64 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 65 | protected: |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 66 | SkStreamAsset* onOpenStream(int*) const override { return nullptr; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 67 | |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 68 | private: |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 69 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 70 | }; |
| 71 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 72 | /** The stream SkTypeface implementation for the custom font manager. */ |
| 73 | class SkTypeface_Stream : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 74 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 75 | SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 76 | const SkString familyName, SkStreamAsset* stream, int index) |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 77 | : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
scroggo | e58898e | 2015-01-21 12:23:20 -0800 | [diff] [blame] | 78 | , fStream(stream) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 79 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 80 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 81 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 82 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 83 | *ttcIndex = this->getIndex(); |
commit-bot@chromium.org | a2b44dc | 2014-03-24 21:42:01 +0000 | [diff] [blame] | 84 | return fStream->duplicate(); |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 85 | } |
| 86 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 87 | private: |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 88 | const SkAutoTDelete<const SkStreamAsset> fStream; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 89 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 90 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 91 | }; |
| 92 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 93 | /** The file SkTypeface implementation for the custom font manager. */ |
| 94 | class SkTypeface_File : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 96 | SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 97 | const SkString familyName, const char path[], int index) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 98 | : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 99 | , fPath(path) |
| 100 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 101 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 102 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 103 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 104 | *ttcIndex = this->getIndex(); |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 105 | return SkStream::NewFromFile(fPath.c_str()); |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 106 | } |
| 107 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 108 | private: |
| 109 | SkString fPath; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 110 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 111 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 112 | }; |
| 113 | |
| 114 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 115 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 116 | /** |
| 117 | * SkFontStyleSet_Custom |
| 118 | * |
| 119 | * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. |
| 120 | */ |
| 121 | class SkFontStyleSet_Custom : public SkFontStyleSet { |
| 122 | public: |
| 123 | explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(familyName) { } |
| 124 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 125 | /** Should only be called during the inital build phase. */ |
| 126 | void appendTypeface(SkTypeface_Custom* typeface) { |
| 127 | fStyles.push_back().reset(typeface); |
| 128 | } |
| 129 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 130 | int count() override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 131 | return fStyles.count(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 133 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 134 | void getStyle(int index, SkFontStyle* style, SkString* name) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 135 | SkASSERT(index < fStyles.count()); |
| 136 | bool bold = fStyles[index]->isBold(); |
| 137 | bool italic = fStyles[index]->isItalic(); |
| 138 | *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNormal_Weight, |
| 139 | SkFontStyle::kNormal_Width, |
| 140 | italic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); |
| 141 | name->reset(); |
| 142 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 143 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 144 | SkTypeface* createTypeface(int index) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 145 | SkASSERT(index < fStyles.count()); |
| 146 | return SkRef(fStyles[index].get()); |
| 147 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 148 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 149 | static int match_score(const SkFontStyle& pattern, const SkFontStyle& candidate) { |
| 150 | int score = 0; |
| 151 | score += (pattern.width() - candidate.width()) * 100; |
| 152 | score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; |
| 153 | score += pattern.weight() - candidate.weight(); |
| 154 | return score; |
| 155 | } |
| 156 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 157 | SkTypeface* matchStyle(const SkFontStyle& pattern) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 158 | if (0 == fStyles.count()) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 159 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 160 | } |
| 161 | |
| 162 | SkTypeface_Custom* closest = fStyles[0]; |
| 163 | int minScore = std::numeric_limits<int>::max(); |
| 164 | for (int i = 0; i < fStyles.count(); ++i) { |
| 165 | bool bold = fStyles[i]->isBold(); |
| 166 | bool italic = fStyles[i]->isItalic(); |
| 167 | SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight |
| 168 | : SkFontStyle::kNormal_Weight, |
| 169 | SkFontStyle::kNormal_Width, |
| 170 | italic ? SkFontStyle::kItalic_Slant |
| 171 | : SkFontStyle::kUpright_Slant); |
| 172 | |
| 173 | int score = match_score(pattern, style); |
| 174 | if (score < minScore) { |
| 175 | closest = fStyles[i]; |
| 176 | minScore = score; |
| 177 | } |
| 178 | } |
| 179 | return SkRef(closest); |
| 180 | } |
| 181 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 182 | SkString getFamilyName() { return fFamilyName; } |
| 183 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 184 | private: |
| 185 | SkTArray<SkAutoTUnref<SkTypeface_Custom>, true> fStyles; |
| 186 | SkString fFamilyName; |
| 187 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 188 | friend class SkFontMgr_Custom; |
| 189 | }; |
| 190 | |
| 191 | /** |
| 192 | * SkFontMgr_Custom |
| 193 | * |
| 194 | * This class is essentially a collection of SkFontStyleSet_Custom, |
| 195 | * one SkFontStyleSet_Custom for each family. This class may be modified |
| 196 | * to load fonts from any source by changing the initialization. |
| 197 | */ |
| 198 | class SkFontMgr_Custom : public SkFontMgr { |
| 199 | public: |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 200 | typedef SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> Families; |
| 201 | class SystemFontLoader { |
| 202 | public: |
| 203 | virtual ~SystemFontLoader() { } |
| 204 | virtual void loadSystemFonts(const SkTypeface_FreeType::Scanner&, Families*) const = 0; |
| 205 | }; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 206 | explicit SkFontMgr_Custom(const SystemFontLoader& loader) : fDefaultFamily(nullptr) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 207 | loader.loadSystemFonts(fScanner, &fFamilies); |
| 208 | |
| 209 | // Try to pick a default font. |
| 210 | static const char* defaultNames[] = { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 211 | "Arial", "Verdana", "Times New Roman", "Droid Sans", nullptr |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 212 | }; |
| 213 | for (size_t i = 0; i < SK_ARRAY_COUNT(defaultNames); ++i) { |
| 214 | SkFontStyleSet_Custom* set = this->onMatchFamily(defaultNames[i]); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 215 | if (nullptr == set) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 216 | continue; |
| 217 | } |
| 218 | |
| 219 | SkTypeface* tf = set->matchStyle(SkFontStyle(SkFontStyle::kNormal_Weight, |
| 220 | SkFontStyle::kNormal_Width, |
| 221 | SkFontStyle::kUpright_Slant)); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 222 | if (nullptr == tf) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 223 | continue; |
| 224 | } |
| 225 | |
| 226 | fDefaultFamily = set; |
| 227 | break; |
| 228 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 229 | if (nullptr == fDefaultFamily) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 230 | fDefaultFamily = fFamilies[0]; |
| 231 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 235 | int onCountFamilies() const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 236 | return fFamilies.count(); |
| 237 | } |
| 238 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 239 | void onGetFamilyName(int index, SkString* familyName) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 240 | SkASSERT(index < fFamilies.count()); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 241 | familyName->set(fFamilies[index]->getFamilyName()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 242 | } |
| 243 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 244 | SkFontStyleSet_Custom* onCreateStyleSet(int index) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 245 | SkASSERT(index < fFamilies.count()); |
| 246 | return SkRef(fFamilies[index].get()); |
| 247 | } |
| 248 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 249 | SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 250 | for (int i = 0; i < fFamilies.count(); ++i) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 251 | if (fFamilies[i]->getFamilyName().equals(familyName)) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 252 | return SkRef(fFamilies[i].get()); |
| 253 | } |
| 254 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 255 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 256 | } |
| 257 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 258 | SkTypeface* onMatchFamilyStyle(const char familyName[], |
| 259 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 260 | { |
| 261 | SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); |
| 262 | return sset->matchStyle(fontStyle); |
| 263 | } |
| 264 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 265 | SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, |
| 266 | const char* bcp47[], int bcp47Count, |
| 267 | SkUnichar character) const override |
djsollen | 33068c1 | 2014-11-14 10:52:53 -0800 | [diff] [blame] | 268 | { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 269 | return nullptr; |
djsollen | 33068c1 | 2014-11-14 10:52:53 -0800 | [diff] [blame] | 270 | } |
| 271 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 272 | SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, |
| 273 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 274 | { |
| 275 | for (int i = 0; i < fFamilies.count(); ++i) { |
| 276 | for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { |
| 277 | if (fFamilies[i]->fStyles[j] == familyMember) { |
| 278 | return fFamilies[i]->matchStyle(fontStyle); |
| 279 | } |
| 280 | } |
| 281 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 282 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 283 | } |
| 284 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 285 | SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 286 | return this->createFromStream(new SkMemoryStream(data), ttcIndex); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 287 | } |
| 288 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 289 | SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override { |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 290 | SkAutoTDelete<SkStreamAsset> stream(bareStream); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 291 | if (nullptr == stream || stream->getLength() <= 0) { |
| 292 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 293 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 294 | |
bungeman@google.com | fe74765 | 2013-03-25 19:36:11 +0000 | [diff] [blame] | 295 | bool isFixedPitch; |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 296 | SkFontStyle style; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 297 | SkString name; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 298 | if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch, nullptr)) { |
mtklein | 18300a3 | 2016-03-16 13:53:35 -0700 | [diff] [blame^] | 299 | return new SkTypeface_Stream(style, isFixedPitch, false, name, stream.release(), |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 300 | ttcIndex); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 301 | } else { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 302 | return nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 303 | } |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 304 | } |
| 305 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 306 | SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override { |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 307 | SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path)); |
mtklein | 18300a3 | 2016-03-16 13:53:35 -0700 | [diff] [blame^] | 308 | return stream.get() ? this->createFromStream(stream.release(), ttcIndex) : nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 309 | } |
| 310 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 311 | SkTypeface* onLegacyCreateTypeface(const char familyName[], unsigned styleBits) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 312 | SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; |
| 313 | SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold |
| 314 | ? SkFontStyle::kBold_Weight |
| 315 | : SkFontStyle::kNormal_Weight, |
| 316 | SkFontStyle::kNormal_Width, |
| 317 | oldStyle & SkTypeface::kItalic |
| 318 | ? SkFontStyle::kItalic_Slant |
| 319 | : SkFontStyle::kUpright_Slant); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 320 | SkTypeface* tf = nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 321 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 322 | if (familyName) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 323 | tf = this->onMatchFamilyStyle(familyName, style); |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 324 | } |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 325 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 326 | if (nullptr == tf) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 327 | tf = fDefaultFamily->matchStyle(style); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | return SkSafeRef(tf); |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 331 | } |
| 332 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 333 | private: |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 334 | Families fFamilies; |
| 335 | SkFontStyleSet_Custom* fDefaultFamily; |
| 336 | SkTypeface_FreeType::Scanner fScanner; |
| 337 | }; |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 338 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 339 | /////////////////////////////////////////////////////////////////////////////// |
| 340 | |
| 341 | class DirectorySystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 342 | public: |
| 343 | DirectorySystemFontLoader(const char* dir) : fBaseDirectory(dir) { } |
| 344 | |
| 345 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 346 | SkFontMgr_Custom::Families* families) const override |
| 347 | { |
| 348 | load_directory_fonts(scanner, fBaseDirectory, ".ttf", families); |
| 349 | load_directory_fonts(scanner, fBaseDirectory, ".ttc", families); |
| 350 | load_directory_fonts(scanner, fBaseDirectory, ".otf", families); |
| 351 | load_directory_fonts(scanner, fBaseDirectory, ".pfb", families); |
| 352 | |
| 353 | if (families->empty()) { |
| 354 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 355 | families->push_back().reset(family); |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 356 | family->appendTypeface(new SkTypeface_Empty); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 357 | } |
| 358 | } |
| 359 | |
| 360 | private: |
| 361 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 362 | const char familyName[]) |
| 363 | { |
| 364 | for (int i = 0; i < families.count(); ++i) { |
| 365 | if (families[i]->getFamilyName().equals(familyName)) { |
| 366 | return families[i].get(); |
| 367 | } |
| 368 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 369 | return nullptr; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | static void load_directory_fonts(const SkTypeface_FreeType::Scanner& scanner, |
| 373 | const SkString& directory, const char* suffix, |
| 374 | SkFontMgr_Custom::Families* families) |
| 375 | { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 376 | SkOSFile::Iter iter(directory.c_str(), suffix); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 377 | SkString name; |
| 378 | |
| 379 | while (iter.next(&name, false)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 380 | SkString filename(SkOSPath::Join(directory.c_str(), name.c_str())); |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 381 | SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(filename.c_str())); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 382 | if (!stream.get()) { |
| 383 | SkDebugf("---- failed to open <%s>\n", filename.c_str()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 384 | continue; |
| 385 | } |
| 386 | |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 387 | int numFaces; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 388 | if (!scanner.recognizedFont(stream, &numFaces)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 389 | SkDebugf("---- failed to open <%s> as a font\n", filename.c_str()); |
| 390 | continue; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 391 | } |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 392 | |
| 393 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 394 | bool isFixedPitch; |
| 395 | SkString realname; |
| 396 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 397 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch, nullptr)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 398 | SkDebugf("---- failed to open <%s> <%d> as a font\n", |
| 399 | filename.c_str(), faceIndex); |
| 400 | continue; |
| 401 | } |
| 402 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 403 | SkTypeface_Custom* tf = new SkTypeface_File(style, isFixedPitch, |
| 404 | true, // system-font (cannot delete) |
| 405 | realname, filename.c_str(), faceIndex); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 406 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 407 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 408 | if (nullptr == addTo) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 409 | addTo = new SkFontStyleSet_Custom(realname); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 410 | families->push_back().reset(addTo); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 411 | } |
| 412 | addTo->appendTypeface(tf); |
| 413 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 414 | } |
| 415 | |
| 416 | SkOSFile::Iter dirIter(directory.c_str()); |
| 417 | while (dirIter.next(&name, true)) { |
| 418 | if (name.startsWith(".")) { |
| 419 | continue; |
| 420 | } |
tfarina | a8e2e15 | 2014-07-28 19:26:58 -0700 | [diff] [blame] | 421 | SkString dirname(SkOSPath::Join(directory.c_str(), name.c_str())); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 422 | load_directory_fonts(scanner, dirname, suffix, families); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 423 | } |
| 424 | } |
| 425 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 426 | SkString fBaseDirectory; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 427 | }; |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 428 | |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 429 | SK_API SkFontMgr* SkFontMgr_New_Custom_Directory(const char* dir) { |
| 430 | return new SkFontMgr_Custom(DirectorySystemFontLoader(dir)); |
| 431 | } |
| 432 | |
| 433 | /////////////////////////////////////////////////////////////////////////////// |
| 434 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 435 | struct SkEmbeddedResource { const uint8_t* data; size_t size; }; |
| 436 | struct SkEmbeddedResourceHeader { const SkEmbeddedResource* entries; int count; }; |
| 437 | |
| 438 | class EmbeddedSystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 439 | public: |
| 440 | EmbeddedSystemFontLoader(const SkEmbeddedResourceHeader* header) : fHeader(header) { } |
| 441 | |
| 442 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 443 | SkFontMgr_Custom::Families* families) const override |
| 444 | { |
| 445 | for (int i = 0; i < fHeader->count; ++i) { |
| 446 | const SkEmbeddedResource& fontEntry = fHeader->entries[i]; |
| 447 | load_embedded_font(scanner, fontEntry.data, fontEntry.size, i, families); |
| 448 | } |
| 449 | |
| 450 | if (families->empty()) { |
| 451 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 452 | families->push_back().reset(family); |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 453 | family->appendTypeface(new SkTypeface_Empty); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 454 | } |
| 455 | } |
| 456 | |
| 457 | private: |
| 458 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 459 | const char familyName[]) |
| 460 | { |
| 461 | for (int i = 0; i < families.count(); ++i) { |
| 462 | if (families[i]->getFamilyName().equals(familyName)) { |
| 463 | return families[i].get(); |
| 464 | } |
| 465 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 466 | return nullptr; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | static void load_embedded_font(const SkTypeface_FreeType::Scanner& scanner, |
| 470 | const uint8_t* data, size_t size, int index, |
| 471 | SkFontMgr_Custom::Families* families) |
| 472 | { |
| 473 | SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(data, size, false)); |
| 474 | |
| 475 | int numFaces; |
| 476 | if (!scanner.recognizedFont(stream, &numFaces)) { |
| 477 | SkDebugf("---- failed to open <%d> as a font\n", index); |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 482 | bool isFixedPitch; |
| 483 | SkString realname; |
| 484 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 485 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch, nullptr)) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 486 | SkDebugf("---- failed to open <%d> <%d> as a font\n", index, faceIndex); |
| 487 | return; |
| 488 | } |
| 489 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 490 | SkTypeface_Custom* tf = |
| 491 | new SkTypeface_Stream(style, isFixedPitch, true, // system-font (cannot delete) |
mtklein | 18300a3 | 2016-03-16 13:53:35 -0700 | [diff] [blame^] | 492 | realname, stream.release(), faceIndex); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 493 | |
| 494 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 495 | if (nullptr == addTo) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 496 | addTo = new SkFontStyleSet_Custom(realname); |
| 497 | families->push_back().reset(addTo); |
| 498 | } |
| 499 | addTo->appendTypeface(tf); |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | const SkEmbeddedResourceHeader* fHeader; |
| 504 | }; |
| 505 | |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 506 | SkFontMgr* SkFontMgr_New_Custom_Embedded(const SkEmbeddedResourceHeader* header) { |
| 507 | return new SkFontMgr_Custom(EmbeddedSystemFontLoader(header)); |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 508 | } |