1  /*
2   * Copyright (c) 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  #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_ITEM_MENU_ITEM_LAYOUT_ALGORITHM_H
16  #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_ITEM_MENU_ITEM_LAYOUT_ALGORITHM_H
17  
18  #include "base/memory/referenced.h"
19  #include "core/components_ng/layout/box_layout_algorithm.h"
20  #include "core/components_ng/layout/layout_wrapper.h"
21  
22  namespace OHOS::Ace::NG {
23  namespace {
24      constexpr static int32_t CLICKABLE_AREA_VIEW_INDEX = 2;
25      constexpr static int32_t EXPANDABLE_AREA_VIEW_INDEX = 3;
26  }
27  class ACE_EXPORT MenuItemLayoutAlgorithm : public BoxLayoutAlgorithm {
28      DECLARE_ACE_TYPE(MenuItemLayoutAlgorithm, BoxLayoutAlgorithm);
29  
30  public:
31      MenuItemLayoutAlgorithm() = default;
32      ~MenuItemLayoutAlgorithm() override = default;
33  
34      void Measure(LayoutWrapper* layoutWrapper) override;
35      void Layout(LayoutWrapper* layoutWrapper) override;
36  
37  private:
38      void CheckNeedMatchParent(LayoutWrapper* layoutWrapper,
39          std::optional<LayoutConstraintF>& layoutConstraint);
40      void MeasureItemViews(LayoutConstraintF& childConstraint,
41          std::optional<LayoutConstraintF>& layoutConstraint,
42          PaddingPropertyF padding, LayoutWrapper* layoutWrapper);
43      void MeasureRow(const RefPtr<LayoutWrapper>& row, const LayoutConstraintF& constraint);
44      void CheckNeedExpandContent(LayoutWrapper* layoutWrapper, LayoutConstraintF& childConstraint);
45      void UpdateSelfSize(LayoutWrapper* layoutWrapper, float width, float itemHeight, float expandableHeight);
46      float GetDividerStroke(LayoutWrapper* layoutWrapper);
47      float GetBordersHeight(LayoutWrapper* layoutWrapper);
48      float GetMenuItemVerticalPadding();
49  
50      float horInterval_ = 0.0f;
51      float verInterval_ = 0.0f;
52      float idealWidth_ = 0.0f;
53      float idealHeight_ = 0.0f;
54      float emptyWidth_ = 0.0f;
55      float maxRowWidth_ = 0.0f;
56      float middleSpace_ = 0.0f;
57      float minRowWidth_ = 0.0f;
58      float minItemHeight_ = 0.0f;
59      double iconSize_ = 0.0f;
60      bool needExpandContent_ = false;
61  
62      ACE_DISALLOW_COPY_AND_MOVE(MenuItemLayoutAlgorithm);
63  };
64  } // namespace OHOS::Ace::NG
65  #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_ITEM_MENU_ITEM_LAYOUT_ALGORITHM_H
66