/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtGui>

#include "stardelegate.h"
#include "stareditor.h"
#include "starrating.h"

//! [0]
void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
                         const QModelIndex &index) const
{
    if (qVariantCanConvert<StarRating>(index.data())) {
        StarRating starRating = qVariantValue<StarRating>(index.data());

        if (option.state & QStyle::State_Selected)
            painter->fillRect(option.rect, option.palette.highlight());

        starRating.paint(painter, option.rect, option.palette,
                         StarRating::ReadOnly);
    } else {
        QStyledItemDelegate::paint(painter, option, index);
    }
//! [0]
}

//! [1]
QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option,
                             const QModelIndex &index) const
{
    if (qVariantCanConvert<StarRating>(index.data())) {
        StarRating starRating = qVariantValue<StarRating>(index.data());
        return starRating.sizeHint();
    } else {
        return QStyledItemDelegate::sizeHint(option, index);
    }
}
//! [1]

//! [2]
QWidget *StarDelegate::createEditor(QWidget *parent,
                                    const QStyleOptionViewItem &option,
                                    const QModelIndex &index) const

{
    if (qVariantCanConvert<StarRating>(index.data())) {
        StarEditor *editor = new StarEditor(parent);
        connect(editor, SIGNAL(editingFinished()),
                this, SLOT(commitAndCloseEditor()));
        return editor;
    } else {
        return QStyledItemDelegate::createEditor(parent, option, index);
    }
}
//! [2]

//! [3]
void StarDelegate::setEditorData(QWidget *editor,
                                 const QModelIndex &index) const
{
    if (qVariantCanConvert<StarRating>(index.data())) {
        StarRating starRating = qVariantValue<StarRating>(index.data());
        StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
        starEditor->setStarRating(starRating);
    } else {
        QStyledItemDelegate::setEditorData(editor, index);
    }
}
//! [3]

//! [4]
void StarDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
                                const QModelIndex &index) const
{
    if (qVariantCanConvert<StarRating>(index.data())) {
        StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
        model->setData(index, qVariantFromValue(starEditor->starRating()));
    } else {
        QStyledItemDelegate::setModelData(editor, model, index);
    }
}
//! [4]

//! [5]
void StarDelegate::commitAndCloseEditor()
{
    StarEditor *editor = qobject_cast<StarEditor *>(sender());
    emit commitData(editor);
    emit closeEditor(editor);
}
//! [5]