model.h Example File

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  #include <QAbstractListModel>
  #include <QStringList>

  class Animal
  {
  public:
      Animal(const QString &type, const QString &size);

      QString type() const;
      QString size() const;

  private:
      QString m_type;
      QString m_size;
  };

  class AnimalModel : public QAbstractListModel
  {
      Q_OBJECT
  public:
      enum AnimalRoles {
          TypeRole = Qt::UserRole + 1,
          SizeRole
      };

      AnimalModel(QObject *parent = 0);

      void addAnimal(const Animal &animal);

      int rowCount(const QModelIndex & parent = QModelIndex()) const;

      QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const;

  protected:
      QHash<int, QByteArray> roleNames() const;
  private:
      QList<Animal> m_animals;
  };