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_V2_GRID_LAYOUT_RENDER_GRID_ROW_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_V2_GRID_LAYOUT_RENDER_GRID_ROW_H
18 
19 #include "core/components_v2/grid_layout/grid_container_util_class.h"
20 #include "core/pipeline/base/component.h"
21 #include "core/pipeline/base/render_node.h"
22 
23 namespace OHOS::Ace::V2 {
24 
25 class RenderGridRow : public RenderNode {
26     DECLARE_ACE_TYPE(RenderGridRow, RenderNode);
27 
28 struct NewLineOffset {
29     bool isValid = false;
30     int32_t newLineCount = 0;
31     int32_t offset = 0;
32 };
33 
34 public:
35     ~RenderGridRow() override = default;
36 
37     static RefPtr<RenderNode> Create();
38     static void ParseNewLineForLargeOffset(int32_t childSpan, int32_t childOffset, int32_t restColumnNum,
39         int32_t totalColumnNum, NewLineOffset& newLineOffset);
40 
41     void Update(const RefPtr<Component>& component) override;
42     void PerformLayout() override;
43     void LayoutEachChild(double childWidthLimit, double childHeightLimit, double xGetter, GridSizeType sizeType,
44         int32_t columnNum);
45 
46     void CalculateOffsetOfNewline(const RefPtr<RenderNode>& node, int32_t currentChildSpan, int32_t restColumnNum,
47         int32_t totalColumnNum, GridSizeType sizeType, NewLineOffset& newLineOffset) const;
48     inline int32_t GetRelativeOffset(const RefPtr<RenderNode>& node, GridSizeType sizeType) const;
49     inline int32_t GetGridColSpan(const RefPtr<RenderNode>& node, GridSizeType sizeType) const;
50     void FindGridColChild(RefPtr<RenderNode>& node) const;
GetCurrentSizeType()51     GridSizeType GetCurrentSizeType()
52     {
53         return currentSizeType_;
54     }
55 
56     GridRowDirection GetDirection() const;
57     RefPtr<BreakPoints> GetBreakPoints() const;
58     int32_t GetTotalCol() const;
59     std::pair<double, double> GetGutter() const;
60 
61 private:
62     RefPtr<Component> gridRowComponent_;
63     std::list<RefPtr<RenderNode>> gridColChildren_;
64     GridSizeType currentSizeType_ = GridSizeType::UNDEFINED;
65 };
66 } // namespace OHOS::Ace::V2
67 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_V2_GRID_LAYOUT_RENDER_GRID_ROW_H