1  #ifndef PROXYROLE_H
 2  #define PROXYROLE_H
 3  
 4  #include <QObject>
 5  #include <QMutex>
 6  
 7  namespace qqsfpm {
 8  
 9  class QQmlSortFilterProxyModel;
10  
11  class ProxyRole : public QObject
12  {
13      Q_OBJECT
14  
15  public:
16      using QObject::QObject;
17      virtual ~ProxyRole() = default;
18  
19      QVariant roleData(const QModelIndex& sourceIndex, const QQmlSortFilterProxyModel& proxyModel, const QString& name);
20      virtual void proxyModelCompleted(const QQmlSortFilterProxyModel& proxyModel);
21  
22      virtual QStringList names() = 0;
23  
24  protected:
25      void invalidate();
26  
27  Q_SIGNALS:
28      void invalidated();
29      void namesAboutToBeChanged();
30      void namesChanged();
31  
32  private:
33      virtual QVariant data(const QModelIndex& sourceIndex, const QQmlSortFilterProxyModel& proxyModel, const QString& name) = 0;
34  
35      QMutex m_mutex;
36  };
37  
38  }
39  
40  #endif // PROXYROLE_H