imagemodel.cpp Example File
itemviews/pixelator/imagemodel.cpp
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** Copyright (C) 2004-2006 Trolltech ASA. All rights reserved.
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** This file is part of the example classes of the Qt Toolkit.
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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()));
}