910b446fb2
Change-Id: Ib6e795f6b5bb6a3ac19882a5fb224460ef1fc8ad Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "imagemodel.h"
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//! [0]
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ImageModel::ImageModel(QObject *parent)
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: QAbstractTableModel(parent)
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{
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}
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//! [0]
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//! [1]
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void ImageModel::setImage(const QImage &image)
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{
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beginResetModel();
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modelImage = image;
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endResetModel();
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}
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//! [1]
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//! [2]
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int ImageModel::rowCount(const QModelIndex & /* parent */) const
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{
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return modelImage.height();
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}
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int ImageModel::columnCount(const QModelIndex & /* parent */) const
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//! [2] //! [3]
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{
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return modelImage.width();
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}
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//! [3]
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//! [4]
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QVariant ImageModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid() || role != Qt::DisplayRole)
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return QVariant();
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return qGray(modelImage.pixel(index.column(), index.row()));
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}
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//! [4]
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//! [5]
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QVariant ImageModel::headerData(int /* section */,
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Qt::Orientation /* orientation */,
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int role) const
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{
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if (role == Qt::SizeHintRole)
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return QSize(1, 1);
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return QVariant();
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}
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//! [5]
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