1 /*
2  * Copyright (c) 2021-2023 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 FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_SCROLL_FADE_PAINTER_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_SCROLL_FADE_PAINTER_H
18 
19 #include "base/geometry/offset.h"
20 #include "base/geometry/size.h"
21 #include "base/memory/ace_type.h"
22 #include "core/components/common/properties/color.h"
23 #include "core/pipeline/base/render_context.h"
24 
25 #ifndef USE_ROSEN_DRAWING
26 class SkCanvas;
27 #endif
28 
29 namespace OHOS::Ace {
30 
31 enum class OverScrollDirection {
32     UP = 0,
33     DOWN,
34     LEFT,
35     RIGHT,
36 };
37 
38 class ScrollFadePainter : public AceType {
39     DECLARE_ACE_TYPE(ScrollFadePainter, AceType);
40 
41 public:
42     static RefPtr<ScrollFadePainter> CreatePainter();
43 
44     virtual void PaintSide(RenderContext& context, const Size& size, const Offset& offset) = 0;
45 
GetColor()46     Color GetColor() const
47     {
48         return color_;
49     }
50 
SetColor(const Color & color)51     void SetColor(const Color& color)
52     {
53         color_ = color;
54     }
55 
GetOpacity()56     double GetOpacity() const
57     {
58         return opacity_;
59     }
60 
SetOpacity(double opacity)61     void SetOpacity(double opacity)
62     {
63         opacity_ = opacity;
64     }
65 
GetScaleFactor()66     double GetScaleFactor() const
67     {
68         return scaleFactor_;
69     }
70 
SetScaleFactor(double scaleFactor)71     void SetScaleFactor(double scaleFactor)
72     {
73         scaleFactor_ = scaleFactor;
74     }
75 
SetDirection(OverScrollDirection direction)76     void SetDirection(OverScrollDirection direction)
77     {
78         direction_ = direction;
79     }
80 
81 protected:
82     OverScrollDirection direction_ = OverScrollDirection::UP;
83     Color color_ = Color::GRAY;
84     double opacity_ = 0.0;
85     double scaleFactor_ = 0.0;
86 };
87 
88 } // namespace OHOS::Ace
89 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_SCROLL_SCROLL_FADE_PAINTER_H
90