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_STACK_STACK_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_STACK_STACK_LAYOUT_ALGORITHM_H
18 
19 #include "core/components/common/properties/alignment.h"
20 #include "core/components_ng/layout/box_layout_algorithm.h"
21 
22 namespace OHOS::Ace::NG {
23 
24 class ACE_EXPORT StackLayoutAlgorithm : public BoxLayoutAlgorithm {
25     DECLARE_ACE_TYPE(StackLayoutAlgorithm, BoxLayoutAlgorithm);
26 
27 public:
28     StackLayoutAlgorithm();
29     ~StackLayoutAlgorithm() override = default;
30 
31     void Layout(LayoutWrapper* layoutWrapper) override;
32 
33 private:
34     // calculate stack alignment
35     static NG::OffsetF CalculateStackAlignment(
36         const NG::SizeF& parentSize, const NG::SizeF& childSize, const Alignment& alignment);
37     static void PerformLayout(LayoutWrapper* layoutWrapper);
38     ACE_DISALLOW_COPY_AND_MOVE(StackLayoutAlgorithm);
39 };
40 } // namespace OHOS::Ace::NG
41 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_STACK_STACK_LAYOUT_ALGORITHM_H
42