stardelegate.cpp Example Fileitemviews/stardelegate/stardelegate.cpp/**************************************************************************** ** ** Copyright (C) 2011 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. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 "stardelegate.h" #include "stareditor.h" #include "starrating.h" 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); } } 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); } } 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); } } 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); } } 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); } } void StarDelegate::commitAndCloseEditor() { StarEditor *editor = qobject_cast<StarEditor *>(sender()); emit commitData(editor); emit closeEditor(editor); } |
Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. | Qt 4.8 | |
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD. | ||
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP ! |
Copyright © 2000-2012 - www.developpez.com