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41 
42 #ifndef PatternistSDK_TreeModel_H
43 #define PatternistSDK_TreeModel_H
44 
45 #include <QAbstractItemModel>
46 #include <QObject>
47 #include <QPointer>
48 #include <QStringList>
49 
50 #include "Global.h"
51 
52 QT_BEGIN_HEADER
53 
54 QT_BEGIN_NAMESPACE
55 
56 namespace QPatternistSDK
57 {
58     class TreeItem;
59 
60     /**
61      * @short TreeItem is a generic QAbstractItemModel tailored for
62      * representing hierarchial data.
63      *
64      * TreeModel is an item model in Qt's model/view framework. Its
65      * data consists of TreeItem instances.
66      *
67      * @see TreeItem
68      * @ingroup PatternistSDK
69      * @author Frans Englich <frans.englich@nokia.com>
70      */
71     class Q_PATTERNISTSDK_EXPORT TreeModel : public QAbstractItemModel
72     {
73         Q_OBJECT
74     public:
75         TreeModel(const QStringList columnData, QObject *parent);
76         virtual ~TreeModel();
77 
78         virtual QVariant data(const QModelIndex &index, int role) const;
79         virtual Qt::ItemFlags flags(const QModelIndex &index) const;
80         virtual QVariant headerData(int section,
81                                     Qt::Orientation orientation,
82                                     int role = Qt::DisplayRole) const;
83         virtual QModelIndex index(int row,
84                                   int column,
85                                   const QModelIndex &parent = QModelIndex()) const;
86         virtual QModelIndex parent(const QModelIndex &index) const;
87         virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
88         virtual int columnCount(const QModelIndex &parent = QModelIndex()) const;
89 
90         TreeItem *root() const;
91         /**
92          * Sets @p root to the new root, and deletes the old.
93          */
94         void setRoot(TreeItem *root);
95 
96     protected Q_SLOTS:
97         void childChanged(TreeItem *child);
98 
99     private:
100         QPointer<TreeItem> m_root;
101         const QStringList m_columnData;
102     };
103 }
104 
105 QT_END_NAMESPACE
106 
107 QT_END_HEADER
108 
109 #endif
110 // vim: et:ts=4:sw=4:sts=4
111