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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples 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 Digia Plc 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 <QtWidgets>
#include "imagemodel.h"
//! [0]
ImageModel::ImageModel(QObject *parent)
: QAbstractTableModel(parent)
{
}
//! [0]
//! [1]
void ImageModel::setImage(const QImage &image)
{
beginResetModel();
modelImage = image;
endResetModel();
}
//! [1]
//! [2]
int ImageModel::rowCount(const QModelIndex & /* parent */) const
{
return modelImage.height();
}
int ImageModel::columnCount(const QModelIndex & /* parent */) const
//! [2] //! [3]
{
return modelImage.width();
}
//! [3]
//! [4]
QVariant ImageModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid() || role != Qt::DisplayRole)
return QVariant();
return qGray(modelImage.pixel(index.column(), index.row()));
}
//! [4]
//! [5]
QVariant ImageModel::headerData(int /* section */,
Qt::Orientation /* orientation */,
int role) const
{
if (role == Qt::SizeHintRole)
return QSize(1, 1);
return QVariant();
}
//! [5]
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