1 /*
2  * Copyright (c) 2022-2023 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_NG_PATTERN_SWIPER_INDICATOR_DOT_INDICATOR_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SWIPER_INDICATOR_DOT_INDICATOR_LAYOUT_ALGORITHM_H
18 
19 #include <cstdint>
20 #include <optional>
21 
22 #include "base/geometry/axis.h"
23 #include "base/memory/referenced.h"
24 #include "core/components_ng/layout/layout_algorithm.h"
25 #include "core/components_ng/layout/layout_wrapper.h"
26 namespace OHOS::Ace::NG {
27 class ACE_EXPORT DotIndicatorLayoutAlgorithm : public LayoutAlgorithm {
28     DECLARE_ACE_TYPE(DotIndicatorLayoutAlgorithm, LayoutAlgorithm);
29 
30 public:
31     DotIndicatorLayoutAlgorithm() = default;
32     ~DotIndicatorLayoutAlgorithm() override = default;
33 
OnReset()34     void OnReset() override {}
35     void Measure(LayoutWrapper* layoutWrapper) override;
36     void Layout(LayoutWrapper* layoutWrapper) override;
37 
SetIsHoverOrPress(bool isHoverOrPress)38     void SetIsHoverOrPress(bool isHoverOrPress)
39     {
40         isHoverOrPress_ = isHoverOrPress;
41     }
42 
SetHoverPoint(const PointF & hoverPoint)43     void SetHoverPoint(const PointF& hoverPoint)
44     {
45         hoverPoint_ = hoverPoint;
46     }
47 
SetIndicatorDisplayCount(int32_t indicatorDisplayCount)48     void SetIndicatorDisplayCount(int32_t indicatorDisplayCount)
49     {
50         indicatorDisplayCount_ = indicatorDisplayCount;
51     }
52 
53 private:
54     static double GetValidEdgeLength(float swiperLength, float indicatorLength, const Dimension& edge);
55     float indicatorWidth_ = 0.0f;
56     float indicatorHeight_ = 0.0f;
57     bool isHoverOrPress_ = false;
58     PointF hoverPoint_;
59     int32_t indicatorDisplayCount_ = 0;
60 };
61 } // namespace OHOS::Ace::NG
62 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SWIPER_INDICATOR_DOT_INDICATOR_LAYOUT_ALGORITHM_H
63