1 /* 2 * Copyright (c) 2022 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_OPTION_OPTION_LAYOUT_ALGORITHM_H 16 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_OPTION_OPTION_LAYOUT_ALGORITHM_H 17 18 #include <optional> 19 20 #include "core/components_ng/layout/box_layout_algorithm.h" 21 #include "core/components_ng/layout/layout_algorithm.h" 22 23 namespace OHOS::Ace::NG { 24 class ACE_EXPORT OptionLayoutAlgorithm : public BoxLayoutAlgorithm { 25 DECLARE_ACE_TYPE(OptionLayoutAlgorithm, BoxLayoutAlgorithm); 26 27 public: 28 OptionLayoutAlgorithm() = default; 29 ~OptionLayoutAlgorithm() override = default; 30 31 void Measure(LayoutWrapper* layoutWrapper) override; 32 33 void Layout(LayoutWrapper* layoutWrapper) override; 34 35 private: 36 void MeasureRow(const RefPtr<LayoutWrapper>& row, const LayoutConstraintF& constraint); 37 void UpdateIconMargin(LayoutWrapper* layoutWrapper); 38 std::optional<float> GetIdealWidth(LayoutWrapper* layoutWrapper); 39 float horInterval_ = 0.0f; 40 41 ACE_DISALLOW_COPY_AND_MOVE(OptionLayoutAlgorithm); 42 }; 43 } // namespace OHOS::Ace::NG 44 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_OPTION_OPTION_LAYOUT_ALGORITHM_H 45