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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

source code of qtbase/examples/widgets/itemviews/editabletreemodel/treemodel.h