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Diffstat (limited to 'examples/itemviews/stardelegate/stardelegate.cpp')
-rw-r--r-- | examples/itemviews/stardelegate/stardelegate.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/examples/itemviews/stardelegate/stardelegate.cpp b/examples/itemviews/stardelegate/stardelegate.cpp new file mode 100644 index 0000000..1e12971 --- /dev/null +++ b/examples/itemviews/stardelegate/stardelegate.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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] |