Qt Reference Documentation

model.cpp Example File

declarative/modelviews/abstractitemmodel/model.cpp
 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtDeclarative module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
 **     the names of its contributors may be used to endorse or promote
 **     products derived from this software without specific prior written
 **     permission.
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
 #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();
 }
X

Thank you for giving your feedback.

Make sure it is related to this specific page. For more general bugs and requests, please use the Qt Bug Tracker.