1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#ifndef TREEMODEL_H
52#define TREEMODEL_H
53
54#include <QAbstractItemModel>
55#include <QModelIndex>
56#include <QVariant>
57
58class TreeItem;
59
60//! [0]
61class TreeModel : public QAbstractItemModel
62{
63 Q_OBJECT
64
65public:
66 TreeModel(const QStringList &headers, const QString &data,
67 QObject *parent = nullptr);
68 ~TreeModel();
69//! [0] //! [1]
70
71 QVariant data(const QModelIndex &index, int role) const override;
72 QVariant headerData(int section, Qt::Orientation orientation,
73 int role = Qt::DisplayRole) const override;
74
75 QModelIndex index(int row, int column,
76 const QModelIndex &parent = QModelIndex()) const override;
77 QModelIndex parent(const QModelIndex &index) const override;
78
79 int rowCount(const QModelIndex &parent = QModelIndex()) const override;
80 int columnCount(const QModelIndex &parent = QModelIndex()) const override;
81//! [1]
82
83//! [2]
84 Qt::ItemFlags flags(const QModelIndex &index) const override;
85 bool setData(const QModelIndex &index, const QVariant &value,
86 int role = Qt::EditRole) override;
87 bool setHeaderData(int section, Qt::Orientation orientation,
88 const QVariant &value, int role = Qt::EditRole) override;
89
90 bool insertColumns(int position, int columns,
91 const QModelIndex &parent = QModelIndex()) override;
92 bool removeColumns(int position, int columns,
93 const QModelIndex &parent = QModelIndex()) override;
94 bool insertRows(int position, int rows,
95 const QModelIndex &parent = QModelIndex()) override;
96 bool removeRows(int position, int rows,
97 const QModelIndex &parent = QModelIndex()) override;
98
99private:
100 void setupModelData(const QStringList &lines, TreeItem *parent);
101 TreeItem *getItem(const QModelIndex &index) const;
102
103 TreeItem *rootItem;
104};
105//! [2]
106
107#endif // TREEMODEL_H
108