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imagemodel.cpp Example File
^{itemviews/pixelator/imagemodel.cpp}

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    ** Copyright (C) 2004-2006 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
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    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
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    #include <QtGui>

    #include "imagemodel.h"

    ImageModel::ImageModel(const QImage &image, QObject *parent)
        : QAbstractTableModel(parent)
    {
        modelImage = QImage(image);
    }

    int ImageModel::rowCount(const QModelIndex & /* parent */) const
    {
        return modelImage.height();
    }

    int ImageModel::columnCount(const QModelIndex & /* parent */) const
    {
        return modelImage.width();
    }

    QVariant ImageModel::data(const QModelIndex &index, int role) const
    {
        if (!index.isValid())
            return QVariant();
        else if (role != Qt::DisplayRole)
            return QVariant();

        return qGray(modelImage.pixel(index.column(), index.row()));
    }