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