Home · All Classes · Main Classes · Grouped Classes · Modules · Functions

imagemodel.cpp Example File
itemviews/pixelator/imagemodel.cpp

 /****************************************************************************
 **
 ** Copyright (C) 2004-2008 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the example classes of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact sales@trolltech.com if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://www.trolltech.com/products/qt/licensing.html or by
 ** contacting info@trolltech.com.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #include <QtGui>

 #include "imagemodel.h"

 ImageModel::ImageModel(QObject *parent)
     : QAbstractTableModel(parent)
 {
 }

 void ImageModel::setImage(const QImage &image)
 {
     modelImage = image;
     reset();
 }

 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() || role != Qt::DisplayRole)
         return QVariant();
     return qGray(modelImage.pixel(index.column(), index.row()));
 }

 QVariant ImageModel::headerData(int /* section */,
                                 Qt::Orientation /* orientation */,
                                 int role) const
 {
     if (role == Qt::SizeHintRole)
         return QSize(1, 1);
     return QVariant();
 }


Copyright © 2008 Trolltech Trademarks
Qt 4.3.5