| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef TXT_ASSET_FONT_MANAGER_H_ |
| #define TXT_ASSET_FONT_MANAGER_H_ |
| |
| #include <memory> |
| |
| #include "flutter/fml/macros.h" |
| #include "third_party/skia/include/core/SkFontMgr.h" |
| #include "third_party/skia/include/core/SkStream.h" |
| #include "txt/font_asset_provider.h" |
| #include "txt/typeface_font_asset_provider.h" |
| |
| namespace txt { |
| |
| class AssetFontManager : public SkFontMgr { |
| public: |
| AssetFontManager(std::unique_ptr<FontAssetProvider> font_provider); |
| |
| ~AssetFontManager() override; |
| |
| protected: |
| // |SkFontMgr| |
| SkFontStyleSet* onMatchFamily(const char familyName[]) const override; |
| |
| std::unique_ptr<FontAssetProvider> font_provider_; |
| |
| private: |
| // |SkFontMgr| |
| int onCountFamilies() const override; |
| |
| // |SkFontMgr| |
| void onGetFamilyName(int index, SkString* familyName) const override; |
| |
| // |SkFontMgr| |
| SkFontStyleSet* onCreateStyleSet(int index) const override; |
| |
| // |SkFontMgr| |
| SkTypeface* onMatchFamilyStyle(const char familyName[], |
| const SkFontStyle&) const override; |
| |
| // |SkFontMgr| |
| SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], |
| const SkFontStyle&, |
| const char* bcp47[], |
| int bcp47Count, |
| SkUnichar character) const override; |
| |
| // |SkFontMgr| |
| sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData>, int ttcIndex) const override; |
| |
| // |SkFontMgr| |
| sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset>, |
| int ttcIndex) const override; |
| |
| // |SkFontMgr| |
| sk_sp<SkTypeface> onMakeFromStreamArgs(std::unique_ptr<SkStreamAsset>, |
| const SkFontArguments&) const override; |
| |
| // |SkFontMgr| |
| sk_sp<SkTypeface> onMakeFromFile(const char path[], |
| int ttcIndex) const override; |
| |
| // |SkFontMgr| |
| sk_sp<SkTypeface> onLegacyMakeTypeface(const char familyName[], |
| SkFontStyle) const override; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(AssetFontManager); |
| }; |
| |
| class DynamicFontManager : public AssetFontManager { |
| public: |
| DynamicFontManager() |
| : AssetFontManager(std::make_unique<TypefaceFontAssetProvider>()) {} |
| |
| TypefaceFontAssetProvider& font_provider() { |
| return static_cast<TypefaceFontAssetProvider&>(*font_provider_); |
| } |
| }; |
| |
| } // namespace txt |
| |
| #endif // TXT_ASSET_FONT_MANAGER_H_ |