1 /*
2  * Copyright (c) 2022 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 OHOS_ROSEN_WINDOW_ACCESSIBILITY_CONTROLLER_H
17 #define OHOS_ROSEN_WINDOW_ACCESSIBILITY_CONTROLLER_H
18 
19 #include <cstdint>
20 #include "wm_single_instance.h"
21 
22 namespace OHOS::Rosen {
23 /**
24  * @class WindowAccessibilityController
25  *
26  * @brief Controller of window accessibility.
27  */
28 class WindowAccessibilityController {
29 WM_DECLARE_SINGLE_INSTANCE_BASE(WindowAccessibilityController);
30 public:
31     /**
32      * @brief Set anchor and scale, only take effect for the main display.
33      *
34      * @param x Point x coordinate of Anchor.
35      * @param y Point y coordinate of Anchor.
36      * @param scale Parameter of zooming.
37      */
38     void SetAnchorAndScale(int32_t x, int32_t y, float scale);
39     /**
40      * @brief Set anchor offset, only take effect for the main display.
41      *
42      * @param deltaX X coordinate offset of anchor.
43      * @param deltaY Y coordinate offset of anchor.
44      */
45     void SetAnchorOffset(int32_t deltaX, int32_t deltaY);
46     /**
47      * @brief Turn off the func of window zoom.
48      */
49     void OffWindowZoom();
50 private:
51     WindowAccessibilityController();
52     ~WindowAccessibilityController() = default;
53 };
54 } // namespace OHOS::Rosen
55 #endif // OHOS_ROSEN_WINDOW_ACCESSIBILITY_CONTROLLER_H