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copied!<p>You have to do this in two separate classes because Qt's extensions to c++ (SIGNALS, SLOTS, etc.) do not play well with templates. The rationale and workaround for this can be found at: <a href="http://doc.qt.digia.com/qq/qq15-academic.html" rel="nofollow">http://doc.qt.digia.com/qq/qq15-academic.html</a></p> <p>Here is a rough outline of a solution. (This is based on code we are using in our application and that is working fine.)</p> <p><strong>1. Abstract list class that does Qt stuff</strong></p> <pre><code>class FooListModelQt : public QAbstractTableModel { Q_OBJECT public: // Non-template methods, signals, slots, etc. can be used here. For example... QSet<int> SelectedRows() const; // ... etc. ... signals: void SelectionChanged(); // ... etc. ... protected: explicit FooListModelQt(QObject *parent = NULL); virtual ~FooListModelQt() = 0; // ... etc. ... }; </code></pre> <p><strong>2. Abstract class that does template stuff</strong></p> <pre><code>template <typename T> class FooListModel : public FooListModelQt { public: const T* at(int index) const { return items_.at(index); } int count() const { return items_.count(); } void Append(T *item); // ... etc. ... protected: explicit FooListModel(QObject *parent = NULL); virtual ~FooListModel(); private: QList<T*> items_; }; </code></pre> <p><strong>3. Actual list class</strong></p> <pre><code>class BarListModel : public FooListModel<Bar> { Q_OBJECT public: explicit BarListModel(QObject *parent = NULL); int columnCount(const QModelIndex &parent) const; QVariant data(const QModelIndex &index, int role) const; // ... etc. ... }; </code></pre>

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