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 | |
reed@google.com | 0fc17c3 | 2013-03-21 13:33:49 +0000 | [diff] [blame] | 8 | #include "SkFontHost_FreeType_common.h" |
djsollen@google.com | 9714516 | 2012-05-31 19:55:08 +0000 | [diff] [blame] | 9 | #include "SkFontDescriptor.h" |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 10 | #include "SkFontMgr.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 11 | #include "SkDescriptor.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 12 | #include "SkOSFile.h" |
| 13 | #include "SkPaint.h" |
humper | ad5e9a5 | 2014-11-19 08:32:19 -0800 | [diff] [blame] | 14 | #include "SkRTConf.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | #include "SkString.h" |
| 16 | #include "SkStream.h" |
| 17 | #include "SkThread.h" |
| 18 | #include "SkTSearch.h" |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 19 | #include "SkTypefaceCache.h" |
| 20 | #include "SkTArray.h" |
| 21 | |
| 22 | #include <limits> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 23 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 24 | /** The base SkTypeface implementation for the custom font manager. */ |
| 25 | class SkTypeface_Custom : public SkTypeface_FreeType { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 26 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 27 | SkTypeface_Custom(const SkFontStyle& style, bool isFixedPitch, |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 28 | bool sysFont, const SkString familyName, int index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 29 | : INHERITED(style, SkTypefaceCache::NewFontID(), isFixedPitch) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 30 | , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 31 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 32 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 33 | bool isSysFont() const { return fIsSysFont; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 34 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 35 | virtual const char* getUniqueString() const = 0; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 36 | |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 37 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 38 | void onGetFamilyName(SkString* familyName) const override { |
bungeman | b374d6a | 2014-09-17 07:48:59 -0700 | [diff] [blame] | 39 | *familyName = fFamilyName; |
| 40 | } |
| 41 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 42 | void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 43 | desc->setFamilyName(fFamilyName.c_str()); |
| 44 | desc->setFontFileName(this->getUniqueString()); |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 45 | desc->setFontIndex(fIndex); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 46 | *isLocal = !this->isSysFont(); |
| 47 | } |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 48 | |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 49 | int getIndex() const { return fIndex; } |
| 50 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | private: |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 52 | const bool fIsSysFont; |
| 53 | const SkString fFamilyName; |
| 54 | const int fIndex; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 55 | |
reed@google.com | 032fbb8 | 2013-03-21 13:38:18 +0000 | [diff] [blame] | 56 | typedef SkTypeface_FreeType INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 57 | }; |
| 58 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 59 | /** The empty SkTypeface implementation for the custom font manager. |
| 60 | * Used as the last resort fallback typeface. |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 61 | */ |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 62 | class SkTypeface_Empty : public SkTypeface_Custom { |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 63 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 64 | SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 65 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 66 | const char* getUniqueString() const override { return NULL; } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 67 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 68 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 69 | SkStreamAsset* onOpenStream(int*) const override { return NULL; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 70 | |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 71 | private: |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 72 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 73 | }; |
| 74 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 75 | /** The stream SkTypeface implementation for the custom font manager. */ |
| 76 | class SkTypeface_Stream : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 77 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 78 | SkTypeface_Stream(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 79 | const SkString familyName, SkStreamAsset* stream, int index) |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 80 | : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
scroggo | e58898e | 2015-01-21 12:23:20 -0800 | [diff] [blame] | 81 | , fStream(stream) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 82 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 83 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 84 | const char* getUniqueString() const override { return NULL; } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 85 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 86 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 87 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 88 | *ttcIndex = this->getIndex(); |
commit-bot@chromium.org | a2b44dc | 2014-03-24 21:42:01 +0000 | [diff] [blame] | 89 | return fStream->duplicate(); |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 90 | } |
| 91 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 92 | private: |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 93 | const SkAutoTDelete<const SkStreamAsset> fStream; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 94 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 95 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 96 | }; |
| 97 | |
humper | ad5e9a5 | 2014-11-19 08:32:19 -0800 | [diff] [blame] | 98 | // This configuration option is useful if we need to open and hold handles to |
| 99 | // all found system font data (e.g., for skfiddle, where the application can't |
| 100 | // access the filesystem to read fonts on demand) |
| 101 | |
| 102 | SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData", false, |
| 103 | "Retain the open stream for each found font on the system."); |
| 104 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 105 | /** The file SkTypeface implementation for the custom font manager. */ |
| 106 | class SkTypeface_File : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 107 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 108 | SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 109 | const SkString familyName, const char path[], int index) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 110 | : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 111 | , fPath(path) |
humper | ad5e9a5 | 2014-11-19 08:32:19 -0800 | [diff] [blame] | 112 | , fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str()) : NULL) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 113 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 114 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 115 | const char* getUniqueString() const override { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 116 | const char* str = strrchr(fPath.c_str(), '/'); |
| 117 | if (str) { |
| 118 | str += 1; // skip the '/' |
| 119 | } |
| 120 | return str; |
| 121 | } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 122 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 123 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 124 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 125 | *ttcIndex = this->getIndex(); |
humper | ad5e9a5 | 2014-11-19 08:32:19 -0800 | [diff] [blame] | 126 | if (fStream.get()) { |
| 127 | return fStream->duplicate(); |
| 128 | } else { |
| 129 | return SkStream::NewFromFile(fPath.c_str()); |
| 130 | } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 131 | } |
| 132 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 133 | private: |
| 134 | SkString fPath; |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 135 | const SkAutoTDelete<SkStreamAsset> fStream; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 136 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 137 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | }; |
| 139 | |
| 140 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 141 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 142 | /** |
| 143 | * SkFontStyleSet_Custom |
| 144 | * |
| 145 | * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. |
| 146 | */ |
| 147 | class SkFontStyleSet_Custom : public SkFontStyleSet { |
| 148 | public: |
| 149 | explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(familyName) { } |
| 150 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 151 | /** Should only be called during the inital build phase. */ |
| 152 | void appendTypeface(SkTypeface_Custom* typeface) { |
| 153 | fStyles.push_back().reset(typeface); |
| 154 | } |
| 155 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 156 | int count() override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 157 | return fStyles.count(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 158 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 160 | void getStyle(int index, SkFontStyle* style, SkString* name) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 161 | SkASSERT(index < fStyles.count()); |
| 162 | bool bold = fStyles[index]->isBold(); |
| 163 | bool italic = fStyles[index]->isItalic(); |
| 164 | *style = SkFontStyle(bold ? SkFontStyle::kBold_Weight : SkFontStyle::kNormal_Weight, |
| 165 | SkFontStyle::kNormal_Width, |
| 166 | italic ? SkFontStyle::kItalic_Slant : SkFontStyle::kUpright_Slant); |
| 167 | name->reset(); |
| 168 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 169 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 170 | SkTypeface* createTypeface(int index) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 171 | SkASSERT(index < fStyles.count()); |
| 172 | return SkRef(fStyles[index].get()); |
| 173 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 174 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 175 | static int match_score(const SkFontStyle& pattern, const SkFontStyle& candidate) { |
| 176 | int score = 0; |
| 177 | score += (pattern.width() - candidate.width()) * 100; |
| 178 | score += (pattern.isItalic() == candidate.isItalic()) ? 0 : 1000; |
| 179 | score += pattern.weight() - candidate.weight(); |
| 180 | return score; |
| 181 | } |
| 182 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 183 | SkTypeface* matchStyle(const SkFontStyle& pattern) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 184 | if (0 == fStyles.count()) { |
| 185 | return NULL; |
| 186 | } |
| 187 | |
| 188 | SkTypeface_Custom* closest = fStyles[0]; |
| 189 | int minScore = std::numeric_limits<int>::max(); |
| 190 | for (int i = 0; i < fStyles.count(); ++i) { |
| 191 | bool bold = fStyles[i]->isBold(); |
| 192 | bool italic = fStyles[i]->isItalic(); |
| 193 | SkFontStyle style = SkFontStyle(bold ? SkFontStyle::kBold_Weight |
| 194 | : SkFontStyle::kNormal_Weight, |
| 195 | SkFontStyle::kNormal_Width, |
| 196 | italic ? SkFontStyle::kItalic_Slant |
| 197 | : SkFontStyle::kUpright_Slant); |
| 198 | |
| 199 | int score = match_score(pattern, style); |
| 200 | if (score < minScore) { |
| 201 | closest = fStyles[i]; |
| 202 | minScore = score; |
| 203 | } |
| 204 | } |
| 205 | return SkRef(closest); |
| 206 | } |
| 207 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 208 | SkString getFamilyName() { return fFamilyName; } |
| 209 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 210 | private: |
| 211 | SkTArray<SkAutoTUnref<SkTypeface_Custom>, true> fStyles; |
| 212 | SkString fFamilyName; |
| 213 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 214 | friend class SkFontMgr_Custom; |
| 215 | }; |
| 216 | |
| 217 | /** |
| 218 | * SkFontMgr_Custom |
| 219 | * |
| 220 | * This class is essentially a collection of SkFontStyleSet_Custom, |
| 221 | * one SkFontStyleSet_Custom for each family. This class may be modified |
| 222 | * to load fonts from any source by changing the initialization. |
| 223 | */ |
| 224 | class SkFontMgr_Custom : public SkFontMgr { |
| 225 | public: |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 226 | typedef SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> Families; |
| 227 | class SystemFontLoader { |
| 228 | public: |
| 229 | virtual ~SystemFontLoader() { } |
| 230 | virtual void loadSystemFonts(const SkTypeface_FreeType::Scanner&, Families*) const = 0; |
| 231 | }; |
| 232 | explicit SkFontMgr_Custom(const SystemFontLoader& loader) { |
| 233 | loader.loadSystemFonts(fScanner, &fFamilies); |
| 234 | |
| 235 | // Try to pick a default font. |
| 236 | static const char* defaultNames[] = { |
| 237 | "Arial", "Verdana", "Times New Roman", "Droid Sans", NULL |
| 238 | }; |
| 239 | for (size_t i = 0; i < SK_ARRAY_COUNT(defaultNames); ++i) { |
| 240 | SkFontStyleSet_Custom* set = this->onMatchFamily(defaultNames[i]); |
| 241 | if (NULL == set) { |
| 242 | continue; |
| 243 | } |
| 244 | |
| 245 | SkTypeface* tf = set->matchStyle(SkFontStyle(SkFontStyle::kNormal_Weight, |
| 246 | SkFontStyle::kNormal_Width, |
| 247 | SkFontStyle::kUpright_Slant)); |
| 248 | if (NULL == tf) { |
| 249 | continue; |
| 250 | } |
| 251 | |
| 252 | fDefaultFamily = set; |
| 253 | break; |
| 254 | } |
| 255 | if (NULL == fDefaultFamily) { |
| 256 | fDefaultFamily = fFamilies[0]; |
| 257 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 258 | } |
| 259 | |
| 260 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 261 | int onCountFamilies() const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 262 | return fFamilies.count(); |
| 263 | } |
| 264 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 265 | void onGetFamilyName(int index, SkString* familyName) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 266 | SkASSERT(index < fFamilies.count()); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 267 | familyName->set(fFamilies[index]->getFamilyName()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 268 | } |
| 269 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 270 | SkFontStyleSet_Custom* onCreateStyleSet(int index) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 271 | SkASSERT(index < fFamilies.count()); |
| 272 | return SkRef(fFamilies[index].get()); |
| 273 | } |
| 274 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 275 | SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 276 | for (int i = 0; i < fFamilies.count(); ++i) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 277 | if (fFamilies[i]->getFamilyName().equals(familyName)) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 278 | return SkRef(fFamilies[i].get()); |
| 279 | } |
| 280 | } |
| 281 | return NULL; |
| 282 | } |
| 283 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 284 | SkTypeface* onMatchFamilyStyle(const char familyName[], |
| 285 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 286 | { |
| 287 | SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); |
| 288 | return sset->matchStyle(fontStyle); |
| 289 | } |
| 290 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 291 | SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, |
| 292 | const char* bcp47[], int bcp47Count, |
| 293 | SkUnichar character) const override |
djsollen | 33068c1 | 2014-11-14 10:52:53 -0800 | [diff] [blame] | 294 | { |
| 295 | return NULL; |
| 296 | } |
| 297 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 298 | SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, |
| 299 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 300 | { |
| 301 | for (int i = 0; i < fFamilies.count(); ++i) { |
| 302 | for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { |
| 303 | if (fFamilies[i]->fStyles[j] == familyMember) { |
| 304 | return fFamilies[i]->matchStyle(fontStyle); |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | return NULL; |
| 309 | } |
| 310 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 311 | SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 312 | return this->createFromStream(new SkMemoryStream(data), ttcIndex); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 313 | } |
| 314 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 315 | SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override { |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 316 | SkAutoTDelete<SkStreamAsset> stream(bareStream); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 317 | if (NULL == stream || stream->getLength() <= 0) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 318 | return NULL; |
| 319 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 320 | |
bungeman@google.com | fe74765 | 2013-03-25 19:36:11 +0000 | [diff] [blame] | 321 | bool isFixedPitch; |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 322 | SkFontStyle style; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 323 | SkString name; |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 324 | if (fScanner.scanFont(stream, ttcIndex, &name, &style, &isFixedPitch)) { |
bungeman | 3a21d61 | 2014-07-11 08:52:26 -0700 | [diff] [blame] | 325 | return SkNEW_ARGS(SkTypeface_Stream, (style, isFixedPitch, false, name, |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 326 | stream.detach(), ttcIndex)); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 327 | } else { |
| 328 | return NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 329 | } |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 330 | } |
| 331 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 332 | SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override { |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 333 | SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path)); |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 334 | return stream.get() ? this->createFromStream(stream.detach(), ttcIndex) : NULL; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 335 | } |
| 336 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 337 | SkTypeface* onLegacyCreateTypeface(const char familyName[], unsigned styleBits) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 338 | SkTypeface::Style oldStyle = (SkTypeface::Style)styleBits; |
| 339 | SkFontStyle style = SkFontStyle(oldStyle & SkTypeface::kBold |
| 340 | ? SkFontStyle::kBold_Weight |
| 341 | : SkFontStyle::kNormal_Weight, |
| 342 | SkFontStyle::kNormal_Width, |
| 343 | oldStyle & SkTypeface::kItalic |
| 344 | ? SkFontStyle::kItalic_Slant |
| 345 | : SkFontStyle::kUpright_Slant); |
| 346 | SkTypeface* tf = NULL; |
| 347 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 348 | if (familyName) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 349 | tf = this->onMatchFamilyStyle(familyName, style); |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 350 | } |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 351 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 352 | if (NULL == tf) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 353 | tf = fDefaultFamily->matchStyle(style); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | return SkSafeRef(tf); |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 357 | } |
| 358 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 359 | private: |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 360 | Families fFamilies; |
| 361 | SkFontStyleSet_Custom* fDefaultFamily; |
| 362 | SkTypeface_FreeType::Scanner fScanner; |
| 363 | }; |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 364 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 365 | /////////////////////////////////////////////////////////////////////////////// |
| 366 | |
| 367 | class DirectorySystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 368 | public: |
| 369 | DirectorySystemFontLoader(const char* dir) : fBaseDirectory(dir) { } |
| 370 | |
| 371 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 372 | SkFontMgr_Custom::Families* families) const override |
| 373 | { |
| 374 | load_directory_fonts(scanner, fBaseDirectory, ".ttf", families); |
| 375 | load_directory_fonts(scanner, fBaseDirectory, ".ttc", families); |
| 376 | load_directory_fonts(scanner, fBaseDirectory, ".otf", families); |
| 377 | load_directory_fonts(scanner, fBaseDirectory, ".pfb", families); |
| 378 | |
| 379 | if (families->empty()) { |
| 380 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 381 | families->push_back().reset(family); |
| 382 | family->appendTypeface(SkNEW(SkTypeface_Empty)); |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | private: |
| 387 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 388 | const char familyName[]) |
| 389 | { |
| 390 | for (int i = 0; i < families.count(); ++i) { |
| 391 | if (families[i]->getFamilyName().equals(familyName)) { |
| 392 | return families[i].get(); |
| 393 | } |
| 394 | } |
| 395 | return NULL; |
| 396 | } |
| 397 | |
| 398 | static void load_directory_fonts(const SkTypeface_FreeType::Scanner& scanner, |
| 399 | const SkString& directory, const char* suffix, |
| 400 | SkFontMgr_Custom::Families* families) |
| 401 | { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 402 | SkOSFile::Iter iter(directory.c_str(), suffix); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 403 | SkString name; |
| 404 | |
| 405 | while (iter.next(&name, false)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 406 | SkString filename(SkOSPath::Join(directory.c_str(), name.c_str())); |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 407 | SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(filename.c_str())); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 408 | if (!stream.get()) { |
| 409 | SkDebugf("---- failed to open <%s>\n", filename.c_str()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 410 | continue; |
| 411 | } |
| 412 | |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 413 | int numFaces; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 414 | if (!scanner.recognizedFont(stream, &numFaces)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 415 | SkDebugf("---- failed to open <%s> as a font\n", filename.c_str()); |
| 416 | continue; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 417 | } |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 418 | |
| 419 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 420 | bool isFixedPitch; |
| 421 | SkString realname; |
| 422 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 423 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 424 | SkDebugf("---- failed to open <%s> <%d> as a font\n", |
| 425 | filename.c_str(), faceIndex); |
| 426 | continue; |
| 427 | } |
| 428 | |
| 429 | SkTypeface_Custom* tf = SkNEW_ARGS(SkTypeface_File, ( |
| 430 | style, |
| 431 | isFixedPitch, |
| 432 | true, // system-font (cannot delete) |
| 433 | realname, |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 434 | filename.c_str(), |
| 435 | faceIndex)); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 436 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 437 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 438 | if (NULL == addTo) { |
| 439 | addTo = new SkFontStyleSet_Custom(realname); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 440 | families->push_back().reset(addTo); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 441 | } |
| 442 | addTo->appendTypeface(tf); |
| 443 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | SkOSFile::Iter dirIter(directory.c_str()); |
| 447 | while (dirIter.next(&name, true)) { |
| 448 | if (name.startsWith(".")) { |
| 449 | continue; |
| 450 | } |
tfarina | a8e2e15 | 2014-07-28 19:26:58 -0700 | [diff] [blame] | 451 | SkString dirname(SkOSPath::Join(directory.c_str(), name.c_str())); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 452 | load_directory_fonts(scanner, dirname, suffix, families); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 453 | } |
| 454 | } |
| 455 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 456 | SkString fBaseDirectory; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 457 | }; |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 458 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 459 | struct SkEmbeddedResource { const uint8_t* data; size_t size; }; |
| 460 | struct SkEmbeddedResourceHeader { const SkEmbeddedResource* entries; int count; }; |
| 461 | |
| 462 | class EmbeddedSystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 463 | public: |
| 464 | EmbeddedSystemFontLoader(const SkEmbeddedResourceHeader* header) : fHeader(header) { } |
| 465 | |
| 466 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 467 | SkFontMgr_Custom::Families* families) const override |
| 468 | { |
| 469 | for (int i = 0; i < fHeader->count; ++i) { |
| 470 | const SkEmbeddedResource& fontEntry = fHeader->entries[i]; |
| 471 | load_embedded_font(scanner, fontEntry.data, fontEntry.size, i, families); |
| 472 | } |
| 473 | |
| 474 | if (families->empty()) { |
| 475 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 476 | families->push_back().reset(family); |
| 477 | family->appendTypeface(SkNEW(SkTypeface_Empty)); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | private: |
| 482 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 483 | const char familyName[]) |
| 484 | { |
| 485 | for (int i = 0; i < families.count(); ++i) { |
| 486 | if (families[i]->getFamilyName().equals(familyName)) { |
| 487 | return families[i].get(); |
| 488 | } |
| 489 | } |
| 490 | return NULL; |
| 491 | } |
| 492 | |
| 493 | static void load_embedded_font(const SkTypeface_FreeType::Scanner& scanner, |
| 494 | const uint8_t* data, size_t size, int index, |
| 495 | SkFontMgr_Custom::Families* families) |
| 496 | { |
| 497 | SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(data, size, false)); |
| 498 | |
| 499 | int numFaces; |
| 500 | if (!scanner.recognizedFont(stream, &numFaces)) { |
| 501 | SkDebugf("---- failed to open <%d> as a font\n", index); |
| 502 | return; |
| 503 | } |
| 504 | |
| 505 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 506 | bool isFixedPitch; |
| 507 | SkString realname; |
| 508 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
| 509 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch)) { |
| 510 | SkDebugf("---- failed to open <%d> <%d> as a font\n", index, faceIndex); |
| 511 | return; |
| 512 | } |
| 513 | |
| 514 | SkTypeface_Custom* tf = SkNEW_ARGS(SkTypeface_Stream, ( |
| 515 | style, |
| 516 | isFixedPitch, |
| 517 | true, // system-font (cannot delete) |
| 518 | realname, |
| 519 | stream.detach(), |
| 520 | faceIndex)); |
| 521 | |
| 522 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
| 523 | if (NULL == addTo) { |
| 524 | addTo = new SkFontStyleSet_Custom(realname); |
| 525 | families->push_back().reset(addTo); |
| 526 | } |
| 527 | addTo->appendTypeface(tf); |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | const SkEmbeddedResourceHeader* fHeader; |
| 532 | }; |
| 533 | |
| 534 | #ifdef SK_EMBEDDED_FONTS |
| 535 | |
| 536 | extern "C" const SkEmbeddedResourceHeader SK_EMBEDDED_FONTS; |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 537 | SkFontMgr* SkFontMgr::Factory() { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 538 | return new SkFontMgr_Custom(EmbeddedSystemFontLoader(&SK_EMBEDDED_FONTS)); |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 539 | } |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame^] | 540 | |
| 541 | #else |
| 542 | |
| 543 | #ifndef SK_FONT_FILE_PREFIX |
| 544 | # define SK_FONT_FILE_PREFIX "/usr/share/fonts/" |
| 545 | #endif |
| 546 | SkFontMgr* SkFontMgr::Factory() { |
| 547 | return new SkFontMgr_Custom(DirectorySystemFontLoader(SK_FONT_FILE_PREFIX)); |
| 548 | } |
| 549 | |
| 550 | #endif |