Qt Reference Documentation

# model.cpp Example File

declarative/modelviews/abstractitemmodel/model.cpp

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     #include "model.h"

     Animal::Animal(const QString &type, const QString &size)
         : m_type(type), m_size(size)
     {
     }

     QString Animal::type() const
     {
         return m_type;
     }

     QString Animal::size() const
     {
         return m_size;
     }

     AnimalModel::AnimalModel(QObject *parent)
         : QAbstractListModel(parent)
     {
         QHash<int, QByteArray> roles;
         roles[TypeRole] = "type";
         roles[SizeRole] = "size";
         setRoleNames(roles);
     }

     void AnimalModel::addAnimal(const Animal &animal)
     {
         beginInsertRows(QModelIndex(), rowCount(), rowCount());
         m_animals << animal;
         endInsertRows();
     }

     int AnimalModel::rowCount(const QModelIndex & parent) const {
         return m_animals.count();
     }

     QVariant AnimalModel::data(const QModelIndex & index, int role) const {
         if (index.row() < 0 || index.row() > m_animals.count())
             return QVariant();

         const Animal &animal = m_animals[index.row()];
         if (role == TypeRole)
             return animal.type();
         else if (role == SizeRole)
             return animal.size();
         return QVariant();
     }