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50
51//! [Quoting ModelView Tutorial]
52// modelview.cpp
53#include "mainwindow.h"
54
55#include <QTreeView>
56#include <QStandardItemModel>
57#include <QStandardItem>
58
59MainWindow::MainWindow(QWidget *parent)
60 : QMainWindow(parent)
61 , treeView(new QTreeView(this))
62 , standardModel(new QStandardItemModel(this))
63{
64 setCentralWidget(treeView);
65
66 QList<QStandardItem *> preparedRow = prepareRow(first: "first", second: "second", third: "third");
67 QStandardItem *item = standardModel->invisibleRootItem();
68 // adding a row to the invisible root item produces a root element
69 item->appendRow(aitems: preparedRow);
70
71 QList<QStandardItem *> secondRow = prepareRow(first: "111", second: "222", third: "333");
72 // adding a row to an item starts a subtree
73 preparedRow.first()->appendRow(aitems: secondRow);
74
75 treeView->setModel(standardModel);
76 treeView->expandAll();
77}
78
79QList<QStandardItem *> MainWindow::prepareRow(const QString &first,
80 const QString &second,
81 const QString &third) const
82{
83 return {new QStandardItem(first),
84 new QStandardItem(second),
85 new QStandardItem(third)};
86}
87//! [Quoting ModelView Tutorial]
88

source code of qtbase/examples/widgets/tutorials/modelview/6_treeview/mainwindow.cpp