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Diffstat (limited to 'src/gui/itemviews/qabstractproxymodel.cpp')
| -rw-r--r-- | src/gui/itemviews/qabstractproxymodel.cpp | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/src/gui/itemviews/qabstractproxymodel.cpp b/src/gui/itemviews/qabstractproxymodel.cpp deleted file mode 100644 index 34ca7dff50..0000000000 --- a/src/gui/itemviews/qabstractproxymodel.cpp +++ /dev/null @@ -1,409 +0,0 @@ -/**************************************************************************** -** -** 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 QtGui module 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 "qabstractproxymodel.h" - -#ifndef QT_NO_PROXYMODEL - -#include "qitemselectionmodel.h" -#include <private/qabstractproxymodel_p.h> -#include <QtCore/QSize> -#include <QtCore/QStringList> - - -QT_BEGIN_NAMESPACE - -/*! - \since 4.1 - \class QAbstractProxyModel - \brief The QAbstractProxyModel class provides a base class for proxy item - models that can do sorting, filtering or other data processing tasks. - \ingroup model-view - - This class defines the standard interface that proxy models must use to be - able to interoperate correctly with other model/view components. It is not - supposed to be instantiated directly. - - All standard proxy models are derived from the QAbstractProxyModel class. - If you need to create a new proxy model class, it is usually better to - subclass an existing class that provides the closest behavior to the one - you want to provide. - - Proxy models that filter or sort items of data from a source model should - be created by using or subclassing QSortFilterProxyModel. - - To subclass QAbstractProxyModel, you need to implement mapFromSource() and - mapToSource(). The mapSelectionFromSource() and mapSelectionToSource() - functions only need to be reimplemented if you need a behavior different - from the default behavior. - - \note If the source model is deleted or no source model is specified, the - proxy model operates on a empty placeholder model. - - \sa QSortFilterProxyModel, QAbstractItemModel, {Model/View Programming} -*/ - -//detects the deletion of the source model -void QAbstractProxyModelPrivate::_q_sourceModelDestroyed() -{ - model = QAbstractItemModelPrivate::staticEmptyModel(); -} - -/*! - Constructs a proxy model with the given \a parent. -*/ - -QAbstractProxyModel::QAbstractProxyModel(QObject *parent) - :QAbstractItemModel(*new QAbstractProxyModelPrivate, parent) -{ - setSourceModel(QAbstractItemModelPrivate::staticEmptyModel()); -} - -/*! - \internal -*/ - -QAbstractProxyModel::QAbstractProxyModel(QAbstractProxyModelPrivate &dd, QObject *parent) - : QAbstractItemModel(dd, parent) -{ - setSourceModel(QAbstractItemModelPrivate::staticEmptyModel()); -} - -/*! - Destroys the proxy model. -*/ -QAbstractProxyModel::~QAbstractProxyModel() -{ - -} - -/*! - Sets the given \a sourceModel to be processed by the proxy model. -*/ -void QAbstractProxyModel::setSourceModel(QAbstractItemModel *sourceModel) -{ - Q_D(QAbstractProxyModel); - if (d->model) { - disconnect(d->model, SIGNAL(destroyed()), this, SLOT(_q_sourceModelDestroyed())); - disconnect(d->model, SIGNAL(modelReset()), this, SLOT(resetInternalData())); - } - - if (sourceModel) { - d->model = sourceModel; - connect(d->model, SIGNAL(destroyed()), this, SLOT(_q_sourceModelDestroyed())); - connect(d->model, SIGNAL(modelReset()), this, SLOT(resetInternalData())); - } else { - d->model = QAbstractItemModelPrivate::staticEmptyModel(); - } - d->roleNames = d->model->roleNames(); -} - -/*! - Returns the model that contains the data that is available through the proxy model. -*/ -QAbstractItemModel *QAbstractProxyModel::sourceModel() const -{ - Q_D(const QAbstractProxyModel); - if (d->model == QAbstractItemModelPrivate::staticEmptyModel()) - return 0; - return d->model; -} - -/*! - \reimp - */ -bool QAbstractProxyModel::submit() -{ - Q_D(QAbstractProxyModel); - return d->model->submit(); -} - -/*! - \reimp - */ -void QAbstractProxyModel::revert() -{ - Q_D(QAbstractProxyModel); - d->model->revert(); -} - - -/*! - \fn QModelIndex QAbstractProxyModel::mapToSource(const QModelIndex &proxyIndex) const - - Reimplement this function to return the model index in the source model that - corresponds to the \a proxyIndex in the proxy model. - - \sa mapFromSource() -*/ - -/*! - \fn QModelIndex QAbstractProxyModel::mapFromSource(const QModelIndex &sourceIndex) const - - Reimplement this function to return the model index in the proxy model that - corresponds to the \a sourceIndex from the source model. - - \sa mapToSource() -*/ - -/*! - Returns a source selection mapped from the specified \a proxySelection. - - Reimplement this method to map proxy selections to source selections. - */ -QItemSelection QAbstractProxyModel::mapSelectionToSource(const QItemSelection &proxySelection) const -{ - QModelIndexList proxyIndexes = proxySelection.indexes(); - QItemSelection sourceSelection; - for (int i = 0; i < proxyIndexes.size(); ++i) { - const QModelIndex proxyIdx = mapToSource(proxyIndexes.at(i)); - if (!proxyIdx.isValid()) - continue; - sourceSelection << QItemSelectionRange(proxyIdx); - } - return sourceSelection; -} - -/*! - Returns a proxy selection mapped from the specified \a sourceSelection. - - Reimplement this method to map source selections to proxy selections. -*/ -QItemSelection QAbstractProxyModel::mapSelectionFromSource(const QItemSelection &sourceSelection) const -{ - QModelIndexList sourceIndexes = sourceSelection.indexes(); - QItemSelection proxySelection; - for (int i = 0; i < sourceIndexes.size(); ++i) { - const QModelIndex srcIdx = mapFromSource(sourceIndexes.at(i)); - if (!srcIdx.isValid()) - continue; - proxySelection << QItemSelectionRange(srcIdx); - } - return proxySelection; -} - -/*! - \reimp - */ -QVariant QAbstractProxyModel::data(const QModelIndex &proxyIndex, int role) const -{ - Q_D(const QAbstractProxyModel); - return d->model->data(mapToSource(proxyIndex), role); -} - -/*! - \reimp - */ -QVariant QAbstractProxyModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - Q_D(const QAbstractProxyModel); - int sourceSection; - if (orientation == Qt::Horizontal) { - const QModelIndex proxyIndex = index(0, section); - sourceSection = mapToSource(proxyIndex).column(); - } else { - const QModelIndex proxyIndex = index(section, 0); - sourceSection = mapToSource(proxyIndex).row(); - } - return d->model->headerData(sourceSection, orientation, role); -} - -/*! - \reimp - */ -QMap<int, QVariant> QAbstractProxyModel::itemData(const QModelIndex &proxyIndex) const -{ - Q_D(const QAbstractProxyModel); - return d->model->itemData(mapToSource(proxyIndex)); -} - -/*! - \reimp - */ -Qt::ItemFlags QAbstractProxyModel::flags(const QModelIndex &index) const -{ - Q_D(const QAbstractProxyModel); - return d->model->flags(mapToSource(index)); -} - -/*! - \reimp - */ -bool QAbstractProxyModel::setData(const QModelIndex &index, const QVariant &value, int role) -{ - Q_D(QAbstractProxyModel); - return d->model->setData(mapToSource(index), value, role); -} - -/*! - \reimp - */ -bool QAbstractProxyModel::setItemData(const QModelIndex &index, const QMap< int, QVariant >& roles) -{ - Q_D(QAbstractProxyModel); - return d->model->setItemData(mapToSource(index), roles); -} - -/*! - \reimp - */ -bool QAbstractProxyModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role) -{ - Q_D(QAbstractProxyModel); - int sourceSection; - if (orientation == Qt::Horizontal) { - const QModelIndex proxyIndex = index(0, section); - sourceSection = mapToSource(proxyIndex).column(); - } else { - const QModelIndex proxyIndex = index(section, 0); - sourceSection = mapToSource(proxyIndex).row(); - } - return d->model->setHeaderData(sourceSection, orientation, value, role); -} - -/*! - \reimp - */ -QModelIndex QAbstractProxyModel::buddy(const QModelIndex &index) const -{ - Q_D(const QAbstractProxyModel); - return mapFromSource(d->model->buddy(mapToSource(index))); -} - -/*! - \reimp - */ -bool QAbstractProxyModel::canFetchMore(const QModelIndex &parent) const -{ - Q_D(const QAbstractProxyModel); - return d->model->canFetchMore(mapToSource(parent)); -} - -/*! - \reimp - */ -void QAbstractProxyModel::fetchMore(const QModelIndex &parent) -{ - Q_D(QAbstractProxyModel); - d->model->fetchMore(mapToSource(parent)); -} - -/*! - \reimp - */ -void QAbstractProxyModel::sort(int column, Qt::SortOrder order) -{ - Q_D(QAbstractProxyModel); - d->model->sort(column, order); -} - -/*! - \reimp - */ -QSize QAbstractProxyModel::span(const QModelIndex &index) const -{ - Q_D(const QAbstractProxyModel); - return d->model->span(mapToSource(index)); -} - -/*! - \reimp - */ -bool QAbstractProxyModel::hasChildren(const QModelIndex &parent) const -{ - Q_D(const QAbstractProxyModel); - return d->model->hasChildren(mapToSource(parent)); -} - -/*! - \reimp - */ -QMimeData* QAbstractProxyModel::mimeData(const QModelIndexList &indexes) const -{ - Q_D(const QAbstractProxyModel); - QModelIndexList list; - foreach(const QModelIndex &index, indexes) - list << mapToSource(index); - return d->model->mimeData(list); -} - -/*! - \reimp - */ -QStringList QAbstractProxyModel::mimeTypes() const -{ - Q_D(const QAbstractProxyModel); - return d->model->mimeTypes(); -} - -/*! - \reimp - */ -Qt::DropActions QAbstractProxyModel::supportedDropActions() const -{ - Q_D(const QAbstractProxyModel); - return d->model->supportedDropActions(); -} - -/* - \since 4.8 - - This slot is called just after the internal data of a model is cleared - while it is being reset. - - This slot is provided the convenience of subclasses of concrete proxy - models, such as subclasses of QSortFilterProxyModel which maintain extra - data. - - \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 10 - - \sa modelAboutToBeReset(), modelReset() -*/ -void QAbstractProxyModel::resetInternalData() -{ - -} - -QT_END_NAMESPACE - -#include "moc_qabstractproxymodel.cpp" - -#endif // QT_NO_PROXYMODEL |