1 /*
2  * Copyright (c) 2023-2023 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 BRRIGHTNESS_DIMMING_CALLBACK_H
17 #define BRRIGHTNESS_DIMMING_CALLBACK_H
18 
19 #include <cstdint>
20 
21 namespace OHOS {
22 namespace DisplayPowerMgr {
23 class BrightnessDimmingCallback {
24 public:
25     BrightnessDimmingCallback() = default;
26     virtual ~BrightnessDimmingCallback() = default;
27     BrightnessDimmingCallback(const BrightnessDimmingCallback&) = delete;
28     BrightnessDimmingCallback& operator=(const BrightnessDimmingCallback&) = delete;
29     BrightnessDimmingCallback(BrightnessDimmingCallback&&) = delete;
30     BrightnessDimmingCallback& operator=(BrightnessDimmingCallback&&) = delete;
31 
32     virtual void OnStart() = 0;
33     virtual void OnChanged(uint32_t currentValue) = 0;
34     virtual void OnEnd() = 0;
35     virtual void DiscountBrightness(double discount) = 0;
36 };
37 } // namespace DisplayPowerMgr
38 } // namespace OHOS
39 #endif // BRRIGHTNESS_DIMMING_CALLBACK_H