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50
51/*
52 treeitem.cpp
53
54 A container for items of data supplied by the simple tree model.
55*/
56
57#include "treeitem.h"
58
59//! [0]
60TreeItem::TreeItem(const QVector<QVariant> &data, TreeItem *parent)
61 : m_itemData(data), m_parentItem(parent)
62{}
63//! [0]
64
65//! [1]
66TreeItem::~TreeItem()
67{
68 qDeleteAll(c: m_childItems);
69}
70//! [1]
71
72//! [2]
73void TreeItem::appendChild(TreeItem *item)
74{
75 m_childItems.append(t: item);
76}
77//! [2]
78
79//! [3]
80TreeItem *TreeItem::child(int row)
81{
82 if (row < 0 || row >= m_childItems.size())
83 return nullptr;
84 return m_childItems.at(i: row);
85}
86//! [3]
87
88//! [4]
89int TreeItem::childCount() const
90{
91 return m_childItems.count();
92}
93//! [4]
94
95//! [5]
96int TreeItem::columnCount() const
97{
98 return m_itemData.count();
99}
100//! [5]
101
102//! [6]
103QVariant TreeItem::data(int column) const
104{
105 if (column < 0 || column >= m_itemData.size())
106 return QVariant();
107 return m_itemData.at(i: column);
108}
109//! [6]
110
111//! [7]
112TreeItem *TreeItem::parentItem()
113{
114 return m_parentItem;
115}
116//! [7]
117
118//! [8]
119int TreeItem::row() const
120{
121 if (m_parentItem)
122 return m_parentItem->m_childItems.indexOf(t: const_cast<TreeItem*>(this));
123
124 return 0;
125}
126//! [8]
127

source code of qtbase/examples/widgets/itemviews/simpletreemodel/treeitem.cpp