111 lines
2.1 KiB
C++
111 lines
2.1 KiB
C++
#include "LayerTreeNode.h"
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#include <QtGlobal>
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LayerTreeNode::LayerTreeNode(const QString& name, QObject* parent)
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: QObject(parent), m_name(name)
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{
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}
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LayerTreeNode::~LayerTreeNode()
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{
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qDeleteAll(m_children);
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m_children.clear();
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}
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QString LayerTreeNode::name() const
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{
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return m_name;
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}
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void LayerTreeNode::setName(const QString& name)
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{
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m_name = name;
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}
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QIcon LayerTreeNode::icon() const
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{
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return m_icon;
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}
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void LayerTreeNode::setIcon(const QIcon& icon)
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{
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m_icon = icon;
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}
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Qt::CheckState LayerTreeNode::visible() const
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{
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return m_visible;
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}
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void LayerTreeNode::setVisible(Qt::CheckState s)
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{
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m_visible = s;
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}
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LayerTreeNode* LayerTreeNode::parentNode() const
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{
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return m_parentNode;
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}
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void LayerTreeNode::setParentNode(LayerTreeNode* p)
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{
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m_parentNode = p;
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// 让 QObject 的 parent 也跟随（便于 Qt 对象层次管理，且不会影响我们手动 delete children）
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if (p) this->setParent(p);
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else this->setParent(nullptr);
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}
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int LayerTreeNode::rowInParent() const
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{
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if (!m_parentNode) return 0;
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const auto& siblings = m_parentNode->m_children;
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for (int i = 0; i < siblings.size(); ++i)
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{
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if (siblings[i] == this) return i;
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}
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return 0;
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}
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int LayerTreeNode::childCount() const
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{
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return m_children.size();
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}
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LayerTreeNode* LayerTreeNode::childAt(int row) const
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{
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if (row < 0 || row >= m_children.size()) return nullptr;
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return m_children[row];
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}
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const QVector<LayerTreeNode*>& LayerTreeNode::children() const
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{
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return m_children;
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}
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void LayerTreeNode::appendChild(LayerTreeNode* child)
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{
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insertChild(m_children.size(), child);
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}
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void LayerTreeNode::insertChild(int row, LayerTreeNode* child)
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{
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if (!child) return;
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if (row < 0 || row > m_children.size())
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row = m_children.size();
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child->setParentNode(this);
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m_children.insert(row, child);
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}
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LayerTreeNode* LayerTreeNode::takeChild(int row)
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{
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if (row < 0 || row >= m_children.size()) return nullptr;
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LayerTreeNode* taken = m_children.takeAt(row);
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if (taken) taken->setParentNode(nullptr);
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return taken;
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}
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