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 FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PAINTS_SWIPER_SWIPER_PAINT_METHOD_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PAINTS_SWIPER_SWIPER_PAINT_METHOD_H
18 
19 #include "base/memory/ace_type.h"
20 #include "base/utils/macros.h"
21 #include "core/components_ng/render/drawing.h"
22 #include "core/components_ng/render/node_paint_method.h"
23 
24 namespace OHOS::Ace::NG {
25 
26 class SwiperPaintMethod : public NodePaintMethod {
DECLARE_ACE_TYPE(SwiperPaintMethod,NodePaintMethod)27     DECLARE_ACE_TYPE(SwiperPaintMethod, NodePaintMethod)
28 
29 public:
30     SwiperPaintMethod(Axis axis, float mainDelta) : axis_(axis), mainDelta_(mainDelta) {};
31     ~SwiperPaintMethod() override = default;
32 
33     CanvasDrawFunction GetOverlayDrawFunction(PaintWrapper* paintWrapper) override;
34     CanvasDrawFunction GetContentDrawFunction(PaintWrapper* paintWrapper) override;
35 
SetNeedPaintFade(bool needPaintFade)36     void SetNeedPaintFade(bool needPaintFade)
37     {
38         needPaintFade_ = needPaintFade;
39     }
40 
SetNeedClipPadding(bool needClipPadding)41     void SetNeedClipPadding(bool needClipPadding)
42     {
43         needClipPadding_ = needClipPadding;
44     }
45 
46 private:
47     void PaintFade(RSCanvas& canvas, PaintWrapper* paintWrapper) const;
48     void ClipPadding(PaintWrapper* paintWrapper, RSCanvas& canvas) const;
49 
50     bool needPaintFade_ = false;
51     bool needClipPadding_ = false;
52     Axis axis_;
53     float mainDelta_ = 0.0f;
54 };
55 } // namespace OHOS::Ace::NG
56 
57 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PAINTS_SWIPER_SWIPER_PAINT_METHOD_H
58