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 16 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MULTI_MENU_LAYOUT_ALGORITHM_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MULTI_MENU_LAYOUT_ALGORITHM_H 18 19 #include "base/geometry/ng/offset_t.h" 20 #include "core/components_ng/pattern/menu/menu_layout_algorithm.h" 21 22 namespace OHOS::Ace::NG { 23 class ACE_EXPORT MultiMenuLayoutAlgorithm : public MenuLayoutAlgorithm { 24 DECLARE_ACE_TYPE(MultiMenuLayoutAlgorithm, MenuLayoutAlgorithm) 25 public: 26 MultiMenuLayoutAlgorithm() = default; 27 ~MultiMenuLayoutAlgorithm() override = default; 28 29 void Measure(LayoutWrapper* layoutWrapper) override; 30 void Layout(LayoutWrapper* layoutWrapper) override; 31 32 // if child has user defined width, reset 2c min width. 33 static LayoutConstraintF ResetLayoutConstraintMinWidth( 34 const RefPtr<LayoutWrapper>& child, const LayoutConstraintF& layoutConstraint); 35 36 private: 37 void UpdateSelfSize(LayoutWrapper* layoutWrapper, LayoutConstraintF& childConstraint, 38 std::optional<LayoutConstraintF>& layoutConstraint); 39 void UpdateConstraintBaseOnMenuItems(LayoutWrapper* layoutWrapper, LayoutConstraintF& constraint); 40 float GetChildrenMaxWidth(LayoutWrapper* layoutWrapper, const LayoutConstraintF& layoutConstraint); 41 void UpdateMenuDefaultConstraintByDevice(const RefPtr<MenuPattern>& pattern, 42 LayoutConstraintF& childConstraint, float paddingWidth, std::optional<LayoutConstraintF>& layoutConstraint, 43 bool idealSizeHasVal); 44 45 ACE_DISALLOW_COPY_AND_MOVE(MultiMenuLayoutAlgorithm); 46 }; 47 } // namespace OHOS::Ace::NG 48 49 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_MENU_MULTI_MENU_LAYOUT_ALGORITHM_H 50