1 /*
2  * Copyright (c) 2021 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_LAYERS_LAYER_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_LAYERS_LAYER_H
18 
19 #include <list>
20 
21 #include "base/memory/ace_type.h"
22 
23 namespace OHOS::Ace::Flutter {
24 
25 class SceneBuilder;
26 
27 class Layer : public AceType {
28     DECLARE_ACE_TYPE(Layer, AceType)
29 public:
30     Layer() = default;
31     ~Layer() override = default;
32 
GetParent()33     WeakPtr<Layer> GetParent()
34     {
35         return parentLayer_;
36     }
37 
SetParent(const RefPtr<Layer> & layer)38     void SetParent(const RefPtr<Layer>& layer)
39     {
40         parentLayer_ = layer;
41     }
42 
43     virtual void AddToScene(SceneBuilder& builder, double x, double y) = 0;
44 
45     void AddChildren(const RefPtr<Layer>& layer);
RemoveChildren()46     void RemoveChildren()
47     {
48         children_.clear();
49     }
50 
GetChildren()51     const std::list<RefPtr<Layer>>& GetChildren() const
52     {
53         return children_;
54     }
55 
Size()56     int32_t Size()
57     {
58         return children_.size();
59     }
60 
61     virtual void DumpTree(int32_t depth);
62     virtual void Dump() = 0;
63 
64 protected:
65     WeakPtr<Layer> parentLayer_;
66     std::list<RefPtr<Layer>> children_;
67 };
68 
69 } // namespace OHOS::Ace::Flutter
70 
71 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_LAYERS_LAYER_H
72