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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 "stardelegate.h"
#include "stareditor.h"
#include "starrating.h"
//! [0]
void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<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 (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<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 (index.data().canConvert<StarRating>()) {
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 (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<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 (index.data().canConvert<StarRating>()) {
StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
model->setData(index, QVariant::fromValue(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]
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