Files
dbc/core/tree_node.cpp
T
2026-10-20 13:38:21 -04:00

97 lines
2.5 KiB
C++

/**
* @file tree_node.cpp
* @brief Tree node ownership and navigation.
*
* Created: 2026-03-13
* Author: Deeaitch (Dim. Himro)
*
* Licensed under the MIT License.
* See LICENSE file in the project root for full license text.
*/
#include "tree_node.h"
#include <stdexcept>
TreeNode::TreeNode()
: m_type(NodeType::Root), m_name("dbc") {
}
TreeNode::TreeNode(const FrameInfo &frame)
: m_type(NodeType::Frame), m_name(frame.name), m_frame(std::make_unique<FrameInfo>(frame)) {
}
TreeNode::TreeNode(const SignalInfo &signal)
: m_type(NodeType::Signal), m_name(signal.name), m_signal(std::make_unique<SignalInfo>(signal)) {
}
void TreeNode::AddChild(std::unique_ptr<TreeNode> &&child) {
if (child) {
for (const TreeNode *ancestor = this; ancestor; ancestor = ancestor->m_parent) {
if (ancestor == child.get())
throw std::invalid_argument("Cannot insert a node into its own subtree");
}
if (child->m_parent)
throw std::invalid_argument("Child is already attached");
m_children.push_back(std::move(child));
m_children.back()->m_parent = this;
m_children.back()->m_row = m_children.size() - 1U;
}
}
std::size_t TreeNode::GetChildCount() const {
return m_children.size();
}
const TreeNode *TreeNode::GetChild(std::size_t index) const {
if (index >= m_children.size())
return nullptr;
return m_children[index].get();
}
TreeNode *TreeNode::GetChild(std::size_t index) {
if (index >= m_children.size())
return nullptr;
return m_children[index].get();
}
NodeType TreeNode::GetType() const {
return m_type;
}
const std::string &TreeNode::GetName() const {
return m_name;
}
const FrameInfo *TreeNode::GetFrame() const {
return m_frame.get();
}
const SignalInfo *TreeNode::GetSignal() const {
return m_signal.get();
}
const TreeNode *TreeNode::GetParent() const {
return m_parent;
}
std::size_t TreeNode::GetRow() const {
return m_row;
}
std::optional<FrameKey> TreeNode::GetFrameKey() const {
if (m_frame)
return FrameKey(m_frame->canId, m_frame->isExtended);
if (m_signal && m_parent && m_parent->GetType() == NodeType::Frame)
return m_parent->GetFrameKey();
return std::nullopt;
}
std::optional<SignalKey> TreeNode::GetSignalKey() const {
const std::optional<FrameKey> frame = GetFrameKey();
if (m_signal && frame)
return SignalKey(*frame, m_signal->name);
return std::nullopt;
}