/* * Copyright (c) 2023 Huawei Device Co., Ltd. * 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 OHOS_ROSEN_WINDOW_SCENE_SCREEN_SETTING_HELPER_H #define OHOS_ROSEN_WINDOW_SCENE_SCREEN_SETTING_HELPER_H #include #include #include "setting_observer.h" namespace OHOS { namespace Rosen { class ScreenSettingHelper { public: static void RegisterSettingDpiObserver(SettingObserver::UpdateFunc func); static void UnregisterSettingDpiObserver(); static bool GetSettingDpi(uint32_t& dpi, const std::string& key = SETTING_DPI_KEY); private: static const constexpr char* SETTING_DPI_KEY {"user_set_dpi_value"}; static sptr dpiObserver_; }; } // namespace Rosen } // namespace OHOS #endif // OHOS_ROSEN_WINDOW_SCENE_SCREEN_SETTING_HELPER_H