qt5base-lts/examples/widgets/itemviews/simpletreemodel/treemodel.h
Carl Schwan 25027444a9 Modernize SimpleTreeModel example
Use std::unique_ptr to manage items tree memory allocations. This also
use the new string literals operator.

Change-Id: Iab002b5dc612b75cef0be10862e263c6c6c013c1
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2023-06-28 19:26:45 +00:00

40 lines
1.2 KiB
C++

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef TREEMODEL_H
#define TREEMODEL_H
#include <QAbstractItemModel>
#include <QModelIndex>
#include <QVariant>
class TreeItem;
//! [0]
class TreeModel : public QAbstractItemModel
{
Q_OBJECT
public:
explicit TreeModel(const QString &data, QObject *parent = nullptr);
~TreeModel();
QVariant data(const QModelIndex &index, int role) const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
QVariant headerData(int section, Qt::Orientation orientation,
int role = Qt::DisplayRole) const override;
QModelIndex index(int row, int column,
const QModelIndex &parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex &index) const override;
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
int columnCount(const QModelIndex &parent = QModelIndex()) const override;
private:
void setupModelData(const QStringList &lines, TreeItem *parent);
std::unique_ptr<TreeItem> rootItem;
};
//! [0]
#endif // TREEMODEL_H