/*
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* tree_node.h - A tree container using std::vector
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*
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* Copyright (c) 2021 Rockchip Electronics Co., Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef AIQ_CORE_TREE_NODE_H
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#define AIQ_CORE_TREE_NODE_H
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#include <algorithm>
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#include <vector>
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namespace RkCam {
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template <typename T>
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class TreeNode {
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public:
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using value_type = T;
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TreeNode() : parent_(nullptr){};
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TreeNode(const T& t, TreeNode* parent = nullptr) {
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this->value_ = t;
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this->parent_ = parent;
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}
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TreeNode(const TreeNode& other) {
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this->value_ = other.value_;
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this->parent_ = other.parent_;
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this->children_ = other.children_;
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std::for_each(this->children_.begin(), this->children_.end(),
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[this](const T& t) { t.parent_ = this; });
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}
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const TreeNode& operator=(const TreeNode& other) {
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if (this != &other) {
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this->value_ = other.value_;
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this->parent_ = other.parent_;
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this->children_ = other.children_;
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std::for_each(this->children_.begin(), this->children_.end(),
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[this](const T& t) { t.parent_ = this; });
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}
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return *this;
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}
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virtual ~TreeNode() = default;
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void AddChild(const T& t) { children_.push_back(TreeNode(t, this)); }
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void RemoveChild(const T& t) {
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children_.erase(std::remove_if(children_.begin(), children_.end(),
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[&t](const T& other) { return other == t; }),
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children_.end());
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}
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void SetValue(const T& t) { value_ = t; }
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T& GetValue() { return value_; }
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const T& GetValue() const { return value_; }
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std::vector<TreeNode>& GetChildren() { return children_; }
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const std::vector<TreeNode>& GetChildren() const { return children_; }
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private:
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T value_;
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T* parent_;
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std::vector<TreeNode> children_;
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};
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}; // namespace RkCam
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#endif // AIQ_CORE_TREE_NODE_H
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