1 /* 2 * Copyright (c) 2024 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_INTERFACES_INNER_API_ACE_KIT_INCLUDE_VIEW_LAYOUT_BOX_LAYOUT_ALGORITHM_H 17 #define FOUNDATION_ACE_INTERFACES_INNER_API_ACE_KIT_INCLUDE_VIEW_LAYOUT_BOX_LAYOUT_ALGORITHM_H 18 19 #include "ui/base/macros.h" 20 #include "ui/view/frame_node.h" 21 #include "ui/view/layout/layout_algorithm.h" 22 namespace OHOS::Ace::Kit { 23 class ACE_FORCE_EXPORT BoxLayoutAlgorithm : public LayoutAlgorithm { 24 DECLARE_ACE_TYPE(BoxLayoutAlgorithm, LayoutAlgorithm); 25 26 public: BoxLayoutAlgorithm(const WeakPtr<FrameNode> & host)27 explicit BoxLayoutAlgorithm(const WeakPtr<FrameNode>& host) : LayoutAlgorithm(host) {} 28 ~BoxLayoutAlgorithm() = default; 29 30 void Measure(const Kit::LayoutConstraintInfo& contentConstraint) override; 31 32 void Layout() override; 33 34 std::optional<NG::SizeF> MeasureContent(const NG::LayoutConstraintT<float>& contentConstraint) override; 35 36 // Called to perform measure current render node. 37 static void PerformMeasureSelf(FrameNode* frameNode); 38 39 // Called to perform layout render node. 40 static void PerformLayout(FrameNode* frameNode); 41 42 // Called to perform measure current render node. 43 static void PerformMeasureSelfWithChildList(FrameNode* frameNode); 44 }; 45 } // namespace OHOS::Ace::Kit 46 47 #endif 48