<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Qt 4.6: stardelegate.cpp Example File (itemviews/stardelegate/stardelegate.cpp)</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://qt.nokia.com/"><img src="images/qt-logo.png" align="left" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">stardelegate.cpp Example File<br /><span class="small-subtitle">itemviews/stardelegate/stardelegate.cpp</span> </h1> <pre><span class="comment"> /**************************************************************************** ** ** Copyright (C) 2010 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. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial Usage ** Licensees holding valid Qt Commercial licenses may use this file in ** accordance with the Qt Commercial License Agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Nokia. ** ** 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. ** ** 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 have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/</span> #include <QtGui> #include "stardelegate.h" #include "stareditor.h" #include "starrating.h" 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); } } 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); } } 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); } } 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); } } 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); } } void StarDelegate::commitAndCloseEditor() { StarEditor *editor = qobject_cast<StarEditor *>(sender()); emit commitData(editor); emit closeEditor(editor); }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="40%" align="left">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies)</td> <td width="20%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="40%" align="right"><div align="right">Qt 4.6.3</div></td> </tr></table></div></address></body> </html>