| /* |
| * Copyright 2018 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_TYPEFACE_FONT_ASSET_PROVIDER_H_ |
| #define TXT_TYPEFACE_FONT_ASSET_PROVIDER_H_ |
| |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "flutter/fml/macros.h" |
| #include "third_party/skia/include/core/SkFontMgr.h" |
| #include "txt/font_asset_provider.h" |
| |
| namespace txt { |
| |
| class TypefaceFontStyleSet : public SkFontStyleSet { |
| public: |
| TypefaceFontStyleSet(); |
| |
| ~TypefaceFontStyleSet() override; |
| |
| void registerTypeface(sk_sp<SkTypeface> typeface); |
| |
| // |SkFontStyleSet| |
| int count() override; |
| |
| // |SkFontStyleSet| |
| void getStyle(int index, SkFontStyle* style, SkString* name) override; |
| |
| // |SkFontStyleSet| |
| SkTypeface* createTypeface(int index) override; |
| |
| // |SkFontStyleSet| |
| SkTypeface* matchStyle(const SkFontStyle& pattern) override; |
| |
| private: |
| std::vector<sk_sp<SkTypeface>> typefaces_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(TypefaceFontStyleSet); |
| }; |
| |
| class TypefaceFontAssetProvider : public FontAssetProvider { |
| public: |
| TypefaceFontAssetProvider(); |
| ~TypefaceFontAssetProvider() override; |
| |
| void RegisterTypeface(sk_sp<SkTypeface> typeface); |
| |
| void RegisterTypeface(sk_sp<SkTypeface> typeface, |
| std::string family_name_alias); |
| |
| // |FontAssetProvider| |
| size_t GetFamilyCount() const override; |
| |
| // |FontAssetProvider| |
| std::string GetFamilyName(int index) const override; |
| |
| // |FontAssetProvider| |
| SkFontStyleSet* MatchFamily(const std::string& family_name) override; |
| |
| private: |
| std::unordered_map<std::string, sk_sp<TypefaceFontStyleSet>> |
| registered_families_; |
| std::vector<std::string> family_names_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(TypefaceFontAssetProvider); |
| }; |
| |
| } // namespace txt |
| |
| #endif // TXT_TYPEFACE_FONT_ASSET_PROVIDER_H_ |