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> |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 24 | #include <memory> |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 25 | |
bungeman | f20488b | 2015-07-29 11:49:40 -0700 | [diff] [blame] | 26 | class SkData; |
| 27 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 28 | /** The base SkTypeface implementation for the custom font manager. */ |
| 29 | class SkTypeface_Custom : public SkTypeface_FreeType { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 30 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 31 | SkTypeface_Custom(const SkFontStyle& style, bool isFixedPitch, |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 32 | bool sysFont, const SkString familyName, int index) |
bungeman | e3aea10 | 2016-07-13 05:16:58 -0700 | [diff] [blame] | 33 | : INHERITED(style, isFixedPitch) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 34 | , fIsSysFont(sysFont), fFamilyName(familyName), fIndex(index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 35 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 36 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | bool isSysFont() const { return fIsSysFont; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 38 | |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 39 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 40 | void onGetFamilyName(SkString* familyName) const override { |
bungeman | b374d6a | 2014-09-17 07:48:59 -0700 | [diff] [blame] | 41 | *familyName = fFamilyName; |
| 42 | } |
| 43 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 44 | void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 45 | desc->setFamilyName(fFamilyName.c_str()); |
bungeman | b811378 | 2016-07-25 16:54:59 -0700 | [diff] [blame] | 46 | desc->setStyle(this->fontStyle()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 47 | *isLocal = !this->isSysFont(); |
| 48 | } |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 49 | |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 50 | int getIndex() const { return fIndex; } |
| 51 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | private: |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 53 | const bool fIsSysFont; |
| 54 | const SkString fFamilyName; |
| 55 | const int fIndex; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 56 | |
reed@google.com | 032fbb8 | 2013-03-21 13:38:18 +0000 | [diff] [blame] | 57 | typedef SkTypeface_FreeType INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 58 | }; |
| 59 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 60 | /** The empty SkTypeface implementation for the custom font manager. |
| 61 | * Used as the last resort fallback typeface. |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 62 | */ |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 63 | class SkTypeface_Empty : public SkTypeface_Custom { |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 64 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 65 | SkTypeface_Empty() : INHERITED(SkFontStyle(), false, true, SkString(), 0) {} |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 66 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 67 | protected: |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 68 | SkStreamAsset* onOpenStream(int*) const override { return nullptr; } |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 69 | |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 70 | private: |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 71 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 72 | }; |
| 73 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 74 | /** The stream SkTypeface implementation for the custom font manager. */ |
| 75 | class SkTypeface_Stream : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 76 | public: |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 77 | SkTypeface_Stream(std::unique_ptr<SkFontData> fontData, |
| 78 | const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 79 | const SkString familyName) |
| 80 | : INHERITED(style, isFixedPitch, sysFont, familyName, fontData->getIndex()) |
| 81 | , fData(std::move(fontData)) |
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 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 84 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 85 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 86 | *ttcIndex = fData->getIndex(); |
| 87 | return fData->duplicateStream(); |
| 88 | } |
| 89 | |
| 90 | SkFontData* onCreateFontData() const override { |
| 91 | return new SkFontData(*fData.get()); |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 92 | } |
| 93 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 94 | private: |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 95 | std::unique_ptr<const SkFontData> fData; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 96 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 97 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 98 | }; |
| 99 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 100 | /** The file SkTypeface implementation for the custom font manager. */ |
| 101 | class SkTypeface_File : public SkTypeface_Custom { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 102 | public: |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 103 | SkTypeface_File(const SkFontStyle& style, bool isFixedPitch, bool sysFont, |
| 104 | const SkString familyName, const char path[], int index) |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 105 | : INHERITED(style, isFixedPitch, sysFont, familyName, index) |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 106 | , fPath(path) |
| 107 | { } |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 108 | |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 109 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 110 | SkStreamAsset* onOpenStream(int* ttcIndex) const override { |
bungeman | d71b757 | 2014-09-18 10:55:32 -0700 | [diff] [blame] | 111 | *ttcIndex = this->getIndex(); |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 112 | return SkStream::NewFromFile(fPath.c_str()); |
reed@google.com | 292b1d4 | 2013-03-22 17:21:59 +0000 | [diff] [blame] | 113 | } |
| 114 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 115 | private: |
| 116 | SkString fPath; |
chudy@google.com | ada4480 | 2012-07-30 12:59:12 +0000 | [diff] [blame] | 117 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 118 | typedef SkTypeface_Custom INHERITED; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 119 | }; |
| 120 | |
| 121 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 122 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 123 | /** |
| 124 | * SkFontStyleSet_Custom |
| 125 | * |
| 126 | * This class is used by SkFontMgr_Custom to hold SkTypeface_Custom families. |
| 127 | */ |
| 128 | class SkFontStyleSet_Custom : public SkFontStyleSet { |
| 129 | public: |
| 130 | explicit SkFontStyleSet_Custom(const SkString familyName) : fFamilyName(familyName) { } |
| 131 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 132 | /** Should only be called during the inital build phase. */ |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 133 | void appendTypeface(sk_sp<SkTypeface_Custom> typeface) { |
| 134 | fStyles.emplace_back(std::move(typeface)); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 135 | } |
| 136 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 137 | int count() override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 138 | return fStyles.count(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 139 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 140 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 141 | void getStyle(int index, SkFontStyle* style, SkString* name) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 142 | SkASSERT(index < fStyles.count()); |
bungeman | 77a8ab2 | 2016-04-27 12:30:25 -0700 | [diff] [blame] | 143 | if (style) { |
| 144 | *style = fStyles[index]->fontStyle(); |
| 145 | } |
| 146 | if (name) { |
| 147 | name->reset(); |
| 148 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 149 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 151 | SkTypeface* createTypeface(int index) override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 152 | SkASSERT(index < fStyles.count()); |
| 153 | return SkRef(fStyles[index].get()); |
| 154 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 155 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 156 | SkTypeface* matchStyle(const SkFontStyle& pattern) override { |
bungeman | 77a8ab2 | 2016-04-27 12:30:25 -0700 | [diff] [blame] | 157 | return this->matchStyleCSS3(pattern); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 158 | } |
| 159 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 160 | SkString getFamilyName() { return fFamilyName; } |
| 161 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 162 | private: |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 163 | SkTArray<sk_sp<SkTypeface_Custom>> fStyles; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 164 | SkString fFamilyName; |
| 165 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 166 | friend class SkFontMgr_Custom; |
| 167 | }; |
| 168 | |
| 169 | /** |
| 170 | * SkFontMgr_Custom |
| 171 | * |
| 172 | * This class is essentially a collection of SkFontStyleSet_Custom, |
| 173 | * one SkFontStyleSet_Custom for each family. This class may be modified |
| 174 | * to load fonts from any source by changing the initialization. |
| 175 | */ |
| 176 | class SkFontMgr_Custom : public SkFontMgr { |
| 177 | public: |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 178 | typedef SkTArray<sk_sp<SkFontStyleSet_Custom>> Families; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 179 | class SystemFontLoader { |
| 180 | public: |
| 181 | virtual ~SystemFontLoader() { } |
| 182 | virtual void loadSystemFonts(const SkTypeface_FreeType::Scanner&, Families*) const = 0; |
| 183 | }; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 184 | explicit SkFontMgr_Custom(const SystemFontLoader& loader) : fDefaultFamily(nullptr) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 185 | loader.loadSystemFonts(fScanner, &fFamilies); |
| 186 | |
| 187 | // Try to pick a default font. |
| 188 | static const char* defaultNames[] = { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 189 | "Arial", "Verdana", "Times New Roman", "Droid Sans", nullptr |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 190 | }; |
| 191 | for (size_t i = 0; i < SK_ARRAY_COUNT(defaultNames); ++i) { |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 192 | sk_sp<SkFontStyleSet_Custom> set(this->onMatchFamily(defaultNames[i])); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 193 | if (nullptr == set) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 194 | continue; |
| 195 | } |
| 196 | |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 197 | sk_sp<SkTypeface> tf(set->matchStyle(SkFontStyle(SkFontStyle::kNormal_Weight, |
| 198 | SkFontStyle::kNormal_Width, |
| 199 | SkFontStyle::kUpright_Slant))); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 200 | if (nullptr == tf) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 201 | continue; |
| 202 | } |
| 203 | |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 204 | fDefaultFamily = set.get(); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 205 | break; |
| 206 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 207 | if (nullptr == fDefaultFamily) { |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 208 | fDefaultFamily = fFamilies[0].get(); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 209 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 213 | int onCountFamilies() const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 214 | return fFamilies.count(); |
| 215 | } |
| 216 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 217 | void onGetFamilyName(int index, SkString* familyName) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 218 | SkASSERT(index < fFamilies.count()); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 219 | familyName->set(fFamilies[index]->getFamilyName()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 220 | } |
| 221 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 222 | SkFontStyleSet_Custom* onCreateStyleSet(int index) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 223 | SkASSERT(index < fFamilies.count()); |
| 224 | return SkRef(fFamilies[index].get()); |
| 225 | } |
| 226 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 227 | SkFontStyleSet_Custom* onMatchFamily(const char familyName[]) const override { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 228 | for (int i = 0; i < fFamilies.count(); ++i) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 229 | if (fFamilies[i]->getFamilyName().equals(familyName)) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 230 | return SkRef(fFamilies[i].get()); |
| 231 | } |
| 232 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 233 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 234 | } |
| 235 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 236 | SkTypeface* onMatchFamilyStyle(const char familyName[], |
| 237 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 238 | { |
| 239 | SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); |
| 240 | return sset->matchStyle(fontStyle); |
| 241 | } |
| 242 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 243 | SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&, |
| 244 | const char* bcp47[], int bcp47Count, |
| 245 | SkUnichar character) const override |
djsollen | 33068c1 | 2014-11-14 10:52:53 -0800 | [diff] [blame] | 246 | { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 247 | return nullptr; |
djsollen | 33068c1 | 2014-11-14 10:52:53 -0800 | [diff] [blame] | 248 | } |
| 249 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 250 | SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, |
| 251 | const SkFontStyle& fontStyle) const override |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 252 | { |
| 253 | for (int i = 0; i < fFamilies.count(); ++i) { |
| 254 | for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) { |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 255 | if (fFamilies[i]->fStyles[j].get() == familyMember) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 256 | return fFamilies[i]->matchStyle(fontStyle); |
| 257 | } |
| 258 | } |
| 259 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 260 | return nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 261 | } |
| 262 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 263 | SkTypeface* onCreateFromData(SkData* data, int ttcIndex) const override { |
reed | 42943c8 | 2016-09-12 12:01:44 -0700 | [diff] [blame^] | 264 | return this->createFromStream(new SkMemoryStream(sk_ref_sp(data)), ttcIndex); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 265 | } |
| 266 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 267 | SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override { |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 268 | return this->createFromStream(bareStream, FontParameters().setCollectionIndex(ttcIndex)); |
| 269 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 270 | |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 271 | SkTypeface* onCreateFromStream(SkStreamAsset* s, const FontParameters& params) const override { |
| 272 | using Scanner = SkTypeface_FreeType::Scanner; |
| 273 | SkAutoTDelete<SkStreamAsset> stream(s); |
bungeman@google.com | fe74765 | 2013-03-25 19:36:11 +0000 | [diff] [blame] | 274 | bool isFixedPitch; |
bungeman | a4c4a2d | 2014-10-20 13:33:19 -0700 | [diff] [blame] | 275 | SkFontStyle style; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 276 | SkString name; |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 277 | Scanner::AxisDefinitions axisDefinitions; |
| 278 | if (!fScanner.scanFont(stream, params.getCollectionIndex(), &name, &style, &isFixedPitch, |
| 279 | &axisDefinitions)) |
| 280 | { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 281 | return nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 282 | } |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 283 | |
| 284 | int paramAxisCount; |
| 285 | const FontParameters::Axis* paramAxes = params.getAxes(¶mAxisCount); |
| 286 | SkAutoSTMalloc<4, SkFixed> axisValues(axisDefinitions.count()); |
| 287 | Scanner::computeAxisValues(axisDefinitions, paramAxes, paramAxisCount, axisValues, name); |
| 288 | |
| 289 | std::unique_ptr<SkFontData> data(new SkFontData(stream.release(), |
| 290 | params.getCollectionIndex(), |
| 291 | axisValues.get(), axisDefinitions.count())); |
| 292 | return new SkTypeface_Stream(std::move(data), style, isFixedPitch, false, name); |
reed@android.com | f244f1b | 2010-04-16 12:40:08 +0000 | [diff] [blame] | 293 | } |
| 294 | |
bungeman | 57c9482 | 2016-06-10 12:43:17 -0700 | [diff] [blame] | 295 | SkTypeface* onCreateFromFontData(SkFontData* data) const override { |
| 296 | bool isFixedPitch; |
| 297 | SkFontStyle style; |
| 298 | SkString name; |
| 299 | if (!fScanner.scanFont(data->getStream(), data->getIndex(), |
| 300 | &name, &style, &isFixedPitch, nullptr)) |
| 301 | { |
| 302 | return nullptr; |
| 303 | } |
| 304 | std::unique_ptr<SkFontData> unique_data(data); |
| 305 | return new SkTypeface_Stream(std::move(unique_data), style, isFixedPitch, false, name); |
| 306 | } |
| 307 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 308 | SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override { |
bungeman | 5f213d9 | 2015-01-27 05:39:10 -0800 | [diff] [blame] | 309 | SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path)); |
mtklein | 18300a3 | 2016-03-16 13:53:35 -0700 | [diff] [blame] | 310 | return stream.get() ? this->createFromStream(stream.release(), ttcIndex) : nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 311 | } |
| 312 | |
bungeman | 11a77c6 | 2016-04-12 13:45:06 -0700 | [diff] [blame] | 313 | SkTypeface* onLegacyCreateTypeface(const char familyName[], SkFontStyle style) const override { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 314 | SkTypeface* tf = nullptr; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 315 | |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 316 | if (familyName) { |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 317 | tf = this->onMatchFamilyStyle(familyName, style); |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 318 | } |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 319 | |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 320 | if (nullptr == tf) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 321 | tf = fDefaultFamily->matchStyle(style); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 322 | } |
| 323 | |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 324 | return tf; |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 325 | } |
| 326 | |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 327 | private: |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 328 | Families fFamilies; |
| 329 | SkFontStyleSet_Custom* fDefaultFamily; |
| 330 | SkTypeface_FreeType::Scanner fScanner; |
| 331 | }; |
bungeman@google.com | 2cf84ec | 2012-09-26 19:16:54 +0000 | [diff] [blame] | 332 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 333 | /////////////////////////////////////////////////////////////////////////////// |
| 334 | |
| 335 | class DirectorySystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 336 | public: |
| 337 | DirectorySystemFontLoader(const char* dir) : fBaseDirectory(dir) { } |
| 338 | |
| 339 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 340 | SkFontMgr_Custom::Families* families) const override |
| 341 | { |
| 342 | load_directory_fonts(scanner, fBaseDirectory, ".ttf", families); |
| 343 | load_directory_fonts(scanner, fBaseDirectory, ".ttc", families); |
| 344 | load_directory_fonts(scanner, fBaseDirectory, ".otf", families); |
| 345 | load_directory_fonts(scanner, fBaseDirectory, ".pfb", families); |
| 346 | |
| 347 | if (families->empty()) { |
| 348 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 349 | families->push_back().reset(family); |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 350 | family->appendTypeface(sk_make_sp<SkTypeface_Empty>()); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 351 | } |
| 352 | } |
| 353 | |
| 354 | private: |
| 355 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 356 | const char familyName[]) |
| 357 | { |
| 358 | for (int i = 0; i < families.count(); ++i) { |
| 359 | if (families[i]->getFamilyName().equals(familyName)) { |
| 360 | return families[i].get(); |
| 361 | } |
| 362 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 363 | return nullptr; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | static void load_directory_fonts(const SkTypeface_FreeType::Scanner& scanner, |
| 367 | const SkString& directory, const char* suffix, |
| 368 | SkFontMgr_Custom::Families* families) |
| 369 | { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 370 | SkOSFile::Iter iter(directory.c_str(), suffix); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 371 | SkString name; |
| 372 | |
| 373 | while (iter.next(&name, false)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 374 | SkString filename(SkOSPath::Join(directory.c_str(), name.c_str())); |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 375 | SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(filename.c_str())); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 376 | if (!stream.get()) { |
| 377 | SkDebugf("---- failed to open <%s>\n", filename.c_str()); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 378 | continue; |
| 379 | } |
| 380 | |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 381 | int numFaces; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 382 | if (!scanner.recognizedFont(stream, &numFaces)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 383 | SkDebugf("---- failed to open <%s> as a font\n", filename.c_str()); |
| 384 | continue; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 385 | } |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 386 | |
| 387 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 388 | bool isFixedPitch; |
| 389 | SkString realname; |
| 390 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 391 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch, nullptr)) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 392 | SkDebugf("---- failed to open <%s> <%d> as a font\n", |
| 393 | filename.c_str(), faceIndex); |
| 394 | continue; |
| 395 | } |
| 396 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 397 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 398 | if (nullptr == addTo) { |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 399 | addTo = new SkFontStyleSet_Custom(realname); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 400 | families->push_back().reset(addTo); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 401 | } |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 402 | addTo->appendTypeface(sk_make_sp<SkTypeface_File>(style, isFixedPitch, true, |
| 403 | realname, filename.c_str(), |
| 404 | faceIndex)); |
bungeman | 14df833 | 2014-10-28 15:07:23 -0700 | [diff] [blame] | 405 | } |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | SkOSFile::Iter dirIter(directory.c_str()); |
| 409 | while (dirIter.next(&name, true)) { |
| 410 | if (name.startsWith(".")) { |
| 411 | continue; |
| 412 | } |
tfarina | a8e2e15 | 2014-07-28 19:26:58 -0700 | [diff] [blame] | 413 | SkString dirname(SkOSPath::Join(directory.c_str(), name.c_str())); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 414 | load_directory_fonts(scanner, dirname, suffix, families); |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 415 | } |
| 416 | } |
| 417 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 418 | SkString fBaseDirectory; |
bungeman@google.com | b3d154d | 2013-11-11 15:53:29 +0000 | [diff] [blame] | 419 | }; |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 420 | |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 421 | SK_API SkFontMgr* SkFontMgr_New_Custom_Directory(const char* dir) { |
| 422 | return new SkFontMgr_Custom(DirectorySystemFontLoader(dir)); |
| 423 | } |
| 424 | |
| 425 | /////////////////////////////////////////////////////////////////////////////// |
| 426 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 427 | struct SkEmbeddedResource { const uint8_t* data; size_t size; }; |
| 428 | struct SkEmbeddedResourceHeader { const SkEmbeddedResource* entries; int count; }; |
| 429 | |
| 430 | class EmbeddedSystemFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 431 | public: |
| 432 | EmbeddedSystemFontLoader(const SkEmbeddedResourceHeader* header) : fHeader(header) { } |
| 433 | |
| 434 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 435 | SkFontMgr_Custom::Families* families) const override |
| 436 | { |
| 437 | for (int i = 0; i < fHeader->count; ++i) { |
| 438 | const SkEmbeddedResource& fontEntry = fHeader->entries[i]; |
| 439 | load_embedded_font(scanner, fontEntry.data, fontEntry.size, i, families); |
| 440 | } |
| 441 | |
| 442 | if (families->empty()) { |
| 443 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 444 | families->push_back().reset(family); |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 445 | family->appendTypeface(sk_make_sp<SkTypeface_Empty>()); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 446 | } |
| 447 | } |
| 448 | |
| 449 | private: |
| 450 | static SkFontStyleSet_Custom* find_family(SkFontMgr_Custom::Families& families, |
| 451 | const char familyName[]) |
| 452 | { |
| 453 | for (int i = 0; i < families.count(); ++i) { |
| 454 | if (families[i]->getFamilyName().equals(familyName)) { |
| 455 | return families[i].get(); |
| 456 | } |
| 457 | } |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 458 | return nullptr; |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 459 | } |
| 460 | |
| 461 | static void load_embedded_font(const SkTypeface_FreeType::Scanner& scanner, |
| 462 | const uint8_t* data, size_t size, int index, |
| 463 | SkFontMgr_Custom::Families* families) |
| 464 | { |
| 465 | SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(data, size, false)); |
| 466 | |
| 467 | int numFaces; |
| 468 | if (!scanner.recognizedFont(stream, &numFaces)) { |
| 469 | SkDebugf("---- failed to open <%d> as a font\n", index); |
| 470 | return; |
| 471 | } |
| 472 | |
| 473 | for (int faceIndex = 0; faceIndex < numFaces; ++faceIndex) { |
| 474 | bool isFixedPitch; |
| 475 | SkString realname; |
| 476 | SkFontStyle style = SkFontStyle(); // avoid uninitialized warning |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 477 | if (!scanner.scanFont(stream, faceIndex, &realname, &style, &isFixedPitch, nullptr)) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 478 | SkDebugf("---- failed to open <%d> <%d> as a font\n", index, faceIndex); |
| 479 | return; |
| 480 | } |
| 481 | |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 482 | SkFontStyleSet_Custom* addTo = find_family(*families, realname.c_str()); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 483 | if (nullptr == addTo) { |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 484 | addTo = new SkFontStyleSet_Custom(realname); |
| 485 | families->push_back().reset(addTo); |
| 486 | } |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 487 | std::unique_ptr<SkFontData> data( |
| 488 | new SkFontData(stream.release(), faceIndex, nullptr, 0)); |
| 489 | addTo->appendTypeface(sk_make_sp<SkTypeface_Stream>(std::move(data), |
| 490 | style, isFixedPitch, |
| 491 | true, realname)); |
bungeman | 5c9fa28 | 2015-03-30 12:53:48 -0700 | [diff] [blame] | 492 | } |
| 493 | } |
| 494 | |
| 495 | const SkEmbeddedResourceHeader* fHeader; |
| 496 | }; |
| 497 | |
bungeman | 5cf1949 | 2015-06-15 15:17:21 -0700 | [diff] [blame] | 498 | SkFontMgr* SkFontMgr_New_Custom_Embedded(const SkEmbeddedResourceHeader* header) { |
| 499 | return new SkFontMgr_Custom(EmbeddedSystemFontLoader(header)); |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 500 | } |
caryclark | fe7ada7 | 2016-03-21 06:55:52 -0700 | [diff] [blame] | 501 | |
| 502 | /////////////////////////////////////////////////////////////////////////////// |
| 503 | |
| 504 | class EmptyFontLoader : public SkFontMgr_Custom::SystemFontLoader { |
| 505 | public: |
| 506 | EmptyFontLoader() { } |
| 507 | |
| 508 | void loadSystemFonts(const SkTypeface_FreeType::Scanner& scanner, |
| 509 | SkFontMgr_Custom::Families* families) const override |
| 510 | { |
| 511 | SkFontStyleSet_Custom* family = new SkFontStyleSet_Custom(SkString()); |
| 512 | families->push_back().reset(family); |
bungeman | 4772bd5 | 2016-06-10 04:14:51 -0700 | [diff] [blame] | 513 | family->appendTypeface(sk_make_sp<SkTypeface_Empty>()); |
caryclark | fe7ada7 | 2016-03-21 06:55:52 -0700 | [diff] [blame] | 514 | } |
| 515 | |
| 516 | }; |
| 517 | |
| 518 | SK_API SkFontMgr* SkFontMgr_New_Custom_Empty() { |
| 519 | return new SkFontMgr_Custom(EmptyFontLoader()); |
| 520 | } |