imagedelegate.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation ([email protected])
 **
 ** 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 Nokia Corporation 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 <QtGui>

 #include "imagedelegate.h"

 ImageDelegate::ImageDelegate(QObject *parent)
     : QItemDelegate(parent)
 {
 }

 QWidget *ImageDelegate::createEditor(QWidget *parent,
                                      const QStyleOptionViewItem & /* option */,
                                      const QModelIndex &index) const
 {
     QComboBox *comboBox = new QComboBox(parent);
     if (index.column() == 1) {
         comboBox->addItem(tr("Normal"));
         comboBox->addItem(tr("Active"));
         comboBox->addItem(tr("Disabled"));
         comboBox->addItem(tr("Selected"));
     } else if (index.column() == 2) {
         comboBox->addItem(tr("Off"));
         comboBox->addItem(tr("On"));
     }

     connect(comboBox, SIGNAL(activated(int)), this, SLOT(emitCommitData()));

     return comboBox;
 }

 void ImageDelegate::setEditorData(QWidget *editor,
                                   const QModelIndex &index) const
 {
     QComboBox *comboBox = qobject_cast<QComboBox *>(editor);
     if (!comboBox)
         return;

     int pos = comboBox->findText(index.model()->data(index).toString(),
                                  Qt::MatchExactly);
     comboBox->setCurrentIndex(pos);
 }

 void ImageDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                  const QModelIndex &index) const
 {
     QComboBox *comboBox = qobject_cast<QComboBox *>(editor);
     if (!comboBox)
         return;

     model->setData(index, comboBox->currentText());
 }

 void ImageDelegate::emitCommitData()
 {
     emit commitData(qobject_cast<QWidget *>(sender()));
 }