1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ROSEN_MODULES_TEXGINE_EXPORT_TEXGINE_DYNAMIC_FONT_PROVIDER_H 17 #define ROSEN_MODULES_TEXGINE_EXPORT_TEXGINE_DYNAMIC_FONT_PROVIDER_H 18 19 #include <map> 20 21 #include "texgine/ifont_provider.h" 22 23 namespace OHOS { 24 namespace Rosen { 25 namespace TextEngine { 26 /* 27 * @brief DynamicFontProvider is a FontProvider that can load fonts dynamically. 28 * DynamicFontProvider can accept font typed memory buffer. 29 */ 30 class DynamicFontProvider : virtual public IFontProvider { 31 public: 32 /* 33 * @brief Create DynamicFontProvider instance. 34 * @return DynamicFontProvider 35 */ 36 static std::shared_ptr<DynamicFontProvider> Create() noexcept(true); 37 38 /* 39 * @brief Load font from data, if familyName is empty, it will use the name that comes 40 * with the font file. 41 * @param familyName The name of the font family you want, 42 * empty String by default means use the name that 43 * comes with the font file. 44 * @param data The font data pointer. 45 * @param datalen The font data length. 46 * @return 0 if success 47 * 1 if the arguments are invalid 48 * 2 if the call to the internal API fails 49 */ 50 int LoadFont(const std::string& familyName, const void *data, size_t datalen) noexcept(true); 51 52 std::shared_ptr<VariantFontStyleSet> MatchFamily(const std::string& familyName) noexcept(true) override; 53 54 private: 55 void ReportMemoryUsage(const std::string& member, const bool needThis) const override; 56 57 std::map<std::string, std::shared_ptr<VariantFontStyleSet>> fontStyleSetMap_; 58 }; 59 } // namespace TextEngine 60 } // namespace Rosen 61 } // namespace OHOS 62 63 #endif // ROSEN_MODULES_TEXGINE_EXPORT_TEXGINE_DYNAMIC_FONT_PROVIDER_H 64