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 
16 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_LAYOUTS_BOX_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_LAYOUTS_BOX_LAYOUT_ALGORITHM_H
18 
19 #include "base/utils/noncopyable.h"
20 #include "core/components_ng/layout/layout_algorithm.h"
21 
22 namespace OHOS::Ace::NG {
23 // BoxLayout is the class for box type measure, layout.
24 class ACE_FORCE_EXPORT BoxLayoutAlgorithm : public LayoutAlgorithm {
25     DECLARE_ACE_TYPE(BoxLayoutAlgorithm, LayoutAlgorithm)
26 public:
27     BoxLayoutAlgorithm() = default;
28     ~BoxLayoutAlgorithm() override = default;
29 
30     // override measureSelf and measureChildren.
31     void Measure(LayoutWrapper* layoutWrapper) override;
32 
33     void Layout(LayoutWrapper* layoutWrapper) override;
34 
35     std::optional<SizeF> MeasureContent(
36         const LayoutConstraintF& contentConstraint, LayoutWrapper* layoutWrapper) override;
37 
38     // Called to perform measure current render node.
39     static void PerformMeasureSelf(LayoutWrapper* layoutWrapper);
40 
41     // Called to perform layout render node.
42     static void PerformLayout(LayoutWrapper* layoutWrapper);
43 
44     // Called to perform measure current render node.
45     static void PerformMeasureSelfWithChildList(
46         LayoutWrapper* layoutWrapper, const std::list<RefPtr<LayoutWrapper>>& childList);
47 
48 private:
49     ACE_DISALLOW_COPY_AND_MOVE(BoxLayoutAlgorithm);
50 };
51 } // namespace OHOS::Ace::NG
52 
53 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_LAYOUTS_BOX_LAYOUT_ALGORITHM_H
54