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/select/select_theme.h" 20 #include "core/components_ng/layout/box_layout_algorithm.h" 21 #include "core/components_ng/layout/layout_wrapper.h" 22 23 namespace OHOS::Ace::NG { 24 namespace { 25 constexpr static int32_t CLICKABLE_AREA_VIEW_INDEX = 2; 26 constexpr static int32_t EXPANDABLE_AREA_VIEW_INDEX = 3; 27 } 28 class ACE_EXPORT MenuItemLayoutAlgorithm : public BoxLayoutAlgorithm { 29 DECLARE_ACE_TYPE(MenuItemLayoutAlgorithm, BoxLayoutAlgorithm); 30 31 public: isOption_(isOption)32 MenuItemLayoutAlgorithm(bool isOption = false) : isOption_(isOption) {} 33 ~MenuItemLayoutAlgorithm() override = default; 34 35 void Measure(LayoutWrapper* layoutWrapper) override; 36 void Layout(LayoutWrapper* layoutWrapper) override; 37 38 private: 39 void CheckNeedMatchParent(LayoutWrapper* layoutWrapper, 40 std::optional<LayoutConstraintF>& layoutConstraint); 41 void CheckUserHeight(LayoutWrapper* layoutWrapper); 42 void MeasureItemViews(LayoutConstraintF& childConstraint, 43 std::optional<LayoutConstraintF>& layoutConstraint, 44 LayoutWrapper* layoutWrapper); 45 void MeasureRow(LayoutWrapper* layoutWrapper, const RefPtr<LayoutWrapper>& row, 46 const LayoutConstraintF& constraint); 47 void CheckNeedExpandContent(LayoutWrapper* layoutWrapper, LayoutConstraintF& childConstraint); 48 void UpdateSelfSize(LayoutWrapper* layoutWrapper, float width, float itemHeight, float expandableHeight); 49 float GetDividerStroke(LayoutWrapper* layoutWrapper); 50 float GetBordersHeight(LayoutWrapper* layoutWrapper); 51 float GetMenuItemVerticalPadding(); 52 std::optional<float> GetIdealWidth(LayoutWrapper* layoutWrapper); 53 void UpdateIconMargin(LayoutWrapper* layoutWrapper); 54 void UpdateIdealSize(LayoutWrapper* layoutWrapper, const RefPtr<LayoutProperty>& props, 55 std::optional<LayoutConstraintF>& layoutConstraint); 56 void MeasureMenuItem(LayoutWrapper* layoutWrapper, const RefPtr<SelectTheme>& selectTheme, 57 const RefPtr<LayoutProperty>& props, std::optional<LayoutConstraintF>& layoutConstraint); 58 void MeasureOption(LayoutWrapper* layoutWrapper, const RefPtr<SelectTheme>& selectTheme, 59 const RefPtr<LayoutProperty>& props, const std::optional<LayoutConstraintF>& layoutConstraint); 60 float CalcRowTopSpace(float rowsHeight, float itemHeight, LayoutWrapper* layoutWrapper, 61 float leftOrRightRowHeight); 62 void LayoutMenuItem(LayoutWrapper* layoutWrapper, const RefPtr<LayoutProperty>& props); 63 void LayoutOption(LayoutWrapper* layoutWrapper, const RefPtr<LayoutProperty>& props); 64 void ExtendTextAndRowNode(const RefPtr<LayoutWrapper>& row, const SizeF& optSize, 65 float intervall, const LayoutConstraintF& constraint); 66 float MeasureExpandableHeight(LayoutConstraintF& childConstraint, LayoutWrapper* layoutWrapper); 67 void InitPadding(const RefPtr<LayoutProperty>& props, std::optional<LayoutConstraintF>& layoutConstraint); 68 float CalcItemHeight(float leftRowHeight, float rightRowHeight); 69 void MeasureClickableArea(LayoutWrapper* layoutWrapper); 70 std::pair<float, float> MeasureRightRow(LayoutWrapper* layoutWrapper, LayoutConstraintF& childConstraint); 71 void CalcContentExpandWidth(std::optional<LayoutConstraintF>& layoutConstraint, 72 float contentWidth, float leftRowWidth, float rightRowWidth); 73 74 float horInterval_ = 0.0f; 75 float verInterval_ = 0.0f; 76 float idealWidth_ = 0.0f; 77 float userHeight_ = 0.0f; 78 float idealHeight_ = 0.0f; 79 float emptyWidth_ = 0.0f; 80 float maxRowWidth_ = 0.0f; 81 float middleSpace_ = 0.0f; 82 float minRowWidth_ = 0.0f; 83 float minItemHeight_ = 0.0f; 84 double iconSize_ = 0.0f; 85 bool needExpandContent_ = false; 86 bool isOption_ = false; 87 PaddingPropertyF padding_; 88 89 ACE_DISALLOW_COPY_AND_MOVE(MenuItemLayoutAlgorithm); 90 }; 91 } // namespace OHOS::Ace::NG 92 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MENU_ITEM_MENU_ITEM_LAYOUT_ALGORITHM_H 93