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_SELECT_SELECT_LAYOUT_ALGORITHM_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SELECT_SELECT_LAYOUT_ALGORITHM_H
18 
19 #include "core/components/select/select_theme.h"
20 #include "core/components_ng/layout/layout_algorithm.h"
21 #include "core/components_ng/layout/layout_wrapper.h"
22 
23 namespace OHOS::Ace::NG {
24 class ACE_EXPORT SelectLayoutAlgorithm : public BoxLayoutAlgorithm {
25     DECLARE_ACE_TYPE(SelectLayoutAlgorithm, BoxLayoutAlgorithm);
26 
27 public:
28     SelectLayoutAlgorithm() = default;
29 
30     ~SelectLayoutAlgorithm() override = default;
31 
32     void Measure(LayoutWrapper* layoutWrapper) override;
33 
34 private:
35     SizeF MeasureAndGetSize(const RefPtr<LayoutWrapper>& childLayoutWrapper, const LayoutConstraintF& constraint);
36     void MeasureAndGetTextSize(double fontSize, SizeF& textSize, bool& isTextMin);
37     float MeasureAndGetDefaultHeight(RefPtr<LayoutProperty> layoutProps, RefPtr<SelectTheme> theme);
38     void NeedAgingUpdateParams(LayoutWrapper* layoutWrapper);
39     void UpdateOptionsMaxLines(const std::vector<RefPtr<FrameNode>>& options, int32_t maxLines);
40     void UpdateMargin(LayoutWrapper* layoutWrapper, RefPtr<SelectTheme> theme);
41     float fontScale_ = 0.0f;
42 
43     ACE_DISALLOW_COPY_AND_MOVE(SelectLayoutAlgorithm);
44 };
45 } // namespace OHOS::Ace::NG
46 
47 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SELECT_SELECT_LAYOUT_ALGORITHM_H
48