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_TABS_TABS_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TABS_TABS_LAYOUT_ALGORITHM_H
18 
19 #include "base/geometry/axis.h"
20 #include "base/memory/referenced.h"
21 #include "core/components_ng/layout/layout_algorithm.h"
22 #include "core/components_ng/layout/layout_wrapper.h"
23 #include "core/components_ng/pattern/tabs/tabs_layout_property.h"
24 
25 namespace OHOS::Ace::NG {
26 
27 class ACE_EXPORT TabsLayoutAlgorithm : public LayoutAlgorithm {
28     DECLARE_ACE_TYPE(TabsLayoutAlgorithm, LayoutAlgorithm);
29 
30 public:
31     TabsLayoutAlgorithm() = default;
32     ~TabsLayoutAlgorithm() override = default;
33 
OnReset()34     void OnReset() override {}
35     void Measure(LayoutWrapper* layoutWrapper) override;
36     void Layout(LayoutWrapper* layoutWrapper) override;
37 
38 private:
39     BarPosition GetBarPosition(LayoutWrapper* layoutWrapper) const;
40     Axis GetAxis(LayoutWrapper* layoutWrapper) const;
41     TabsItemDivider GetDivider(LayoutWrapper* layoutWrapper) const;
42     float MeasureDivider(const RefPtr<TabsLayoutProperty>& layoutProperty,
43         const RefPtr<LayoutWrapper>& dividerWrapper, const SizeF& idealSize);
44     SizeF MeasureSwiper(const RefPtr<TabsLayoutProperty>& layoutProperty, RefPtr<LayoutWrapper>& swiperWrapper,
45         const SizeF& idealSize, const SizeF& tabBarSize, const float dividerWidth);
46     std::vector<OffsetF> LayoutOffsetList(
47         LayoutWrapper* layoutWrapper, const RefPtr<LayoutWrapper>& tabBarWrapper, const SizeF& frameSize) const;
48 };
49 
50 } // namespace OHOS::Ace::NG
51 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_TABS_TABS_LAYOUT_ALGORITHM_H
52