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Diffstat (limited to 'src/gui/itemviews/qproxymodel.cpp')
| -rw-r--r-- | src/gui/itemviews/qproxymodel.cpp | 547 |
1 files changed, 0 insertions, 547 deletions
diff --git a/src/gui/itemviews/qproxymodel.cpp b/src/gui/itemviews/qproxymodel.cpp deleted file mode 100644 index 9a232a6a74..0000000000 --- a/src/gui/itemviews/qproxymodel.cpp +++ /dev/null @@ -1,547 +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 "qproxymodel.h" - -#ifndef QT_NO_PROXYMODEL -#include <private/qproxymodel_p.h> -#include <qsize.h> -#include <qstringlist.h> - -QT_BEGIN_NAMESPACE - -/*! - \class QProxyModel - \obsolete - \brief The QProxyModel class provides support for processing data - passed between another model and a view. - - \ingroup model-view - - If you want to do filtering and sorting, see QSortFilterProxyModel. - - Proxy models provide a standard model interface that can be used to - manipulate the data retrieved through an underlying model. They can be used to - perform operations such as sorting and filtering on the data obtained without - changing the contents of the model. - - Just as with subclasses of QAbstractItemView, QProxyModel provides the setModel() - function that is used to specify the model to be acted on by the proxy. - Views can be connected to either the underlying model or the proxy model with - \l QAbstractItemView::setModel(). - - Since views rely on the information provided in model indexes to identify - items of data from models, and to position these items in some visual - representation, proxy models must create their own model indexes instead of - supplying model indexes from their underlying models. - - \sa \link model-view-programming.html Model/View Programming\endlink QAbstractItemModel - -*/ - -/*! - Constructs a proxy model with the given \a parent. -*/ - -QProxyModel::QProxyModel(QObject *parent) - : QAbstractItemModel(*new QProxyModelPrivate, parent) -{ - Q_D(QProxyModel); - setModel(&d->empty); -} - -/*! - \internal -*/ -QProxyModel::QProxyModel(QProxyModelPrivate &dd, QObject *parent) - : QAbstractItemModel(dd, parent) -{ - Q_D(QProxyModel); - setModel(&d->empty); -} - -/*! - Destroys the proxy model. -*/ -QProxyModel::~QProxyModel() -{ -} - -/*! - Sets the given \a model to be processed by the proxy model. -*/ -void QProxyModel::setModel(QAbstractItemModel *model) -{ - Q_D(QProxyModel); - if (d->model && d->model != &d->empty) - disconnectFromModel(d->model); - if (model) { - d->model = model; - connectToModel(model); - } else { - d->model = &d->empty; - } -} - -/*! - Returns the model that contains the data that is available through the - proxy model. -*/ -QAbstractItemModel *QProxyModel::model() const -{ - Q_D(const QProxyModel); - return d->model; -} - -/*! - Returns the model index with the given \a row, \a column, and \a parent. - - \sa QAbstractItemModel::index() -*/ -QModelIndex QProxyModel::index(int row, int column, const QModelIndex &parent) const -{ - Q_D(const QProxyModel); - return setProxyModel(d->model->index(row, column, setSourceModel(parent))); -} - -/*! - Returns the model index that corresponds to the parent of the given \a child - index. -*/ -QModelIndex QProxyModel::parent(const QModelIndex &child) const -{ - Q_D(const QProxyModel); - return setProxyModel(d->model->parent(setSourceModel(child))); -} - -/*! - Returns the number of rows for the given \a parent. - - \sa QAbstractItemModel::rowCount() -*/ -int QProxyModel::rowCount(const QModelIndex &parent) const -{ - Q_D(const QProxyModel); - return d->model->rowCount(setSourceModel(parent)); -} - -/*! - Returns the number of columns for the given \a parent. - - \sa QAbstractItemModel::columnCount() -*/ -int QProxyModel::columnCount(const QModelIndex &parent) const -{ - Q_D(const QProxyModel); - return d->model->columnCount(setSourceModel(parent)); -} - -/*! - Returns true if the item corresponding to the \a parent index has child - items; otherwise returns false. - - \sa QAbstractItemModel::hasChildren() -*/ -bool QProxyModel::hasChildren(const QModelIndex &parent) const -{ - Q_D(const QProxyModel); - return d->model->hasChildren(setSourceModel(parent)); -} - -/*! - Returns the data stored in the item with the given \a index under the - specified \a role. -*/ -QVariant QProxyModel::data(const QModelIndex &index, int role) const -{ - Q_D(const QProxyModel); - return d->model->data(setSourceModel(index), role); -} - -/*! - Sets the \a role data for the item at \a index to \a value. - Returns true if successful; otherwise returns false. - - The base class implementation returns false. This function and - data() must be reimplemented for editable models. - - \sa data() itemData() QAbstractItemModel::setData() -*/ -bool QProxyModel::setData(const QModelIndex &index, const QVariant &value, int role) -{ - Q_D(const QProxyModel); - return d->model->setData(setSourceModel(index), value, role); -} - -/*! - Returns the data stored in the \a section of the header with specified - \a orientation under the given \a role. -*/ -QVariant QProxyModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - Q_D(const QProxyModel); - return d->model->headerData(section, orientation, role); -} - -/*! - Sets the \a role data in the \a section of the header with the specified - \a orientation to the \a value given. - - \sa QAbstractItemModel::setHeaderData() -*/ -bool QProxyModel::setHeaderData(int section, Qt::Orientation orientation, - const QVariant &value, int role) -{ - Q_D(const QProxyModel); - return d->model->setHeaderData(section, orientation, value, role); -} - -/*! - Returns a list of MIME types that are supported by the model. -*/ -QStringList QProxyModel::mimeTypes() const -{ - Q_D(const QProxyModel); - return d->model->mimeTypes(); -} - -/*! - Returns MIME data for the specified \a indexes in the model. -*/ -QMimeData *QProxyModel::mimeData(const QModelIndexList &indexes) const -{ - Q_D(const QProxyModel); - QModelIndexList lst; - for (int i = 0; i < indexes.count(); ++i) - lst.append(setSourceModel(indexes.at(i))); - return d->model->mimeData(lst); -} - -/*! - Returns true if the model accepts the \a data dropped onto an attached - view for the specified \a action; otherwise returns false. - - The \a parent, \a row, and \a column details can be used to control - which MIME types are acceptable to different parts of a model when - received via the drag and drop system. -*/ -bool QProxyModel::dropMimeData(const QMimeData *data, Qt::DropAction action, - int row, int column, const QModelIndex &parent) -{ - Q_D(const QProxyModel); - return d->model->dropMimeData(data, action, row, column, setSourceModel(parent)); -} - -/*! - Returns the drop actions that are supported by the model; this is - a combination of the individual actions defined in \l Qt::DropActions. - - The selection of drop actions provided by the model will influence the - behavior of the component that started the drag and drop operation. - - \sa \link dnd.html Drag and Drop\endlink -*/ -Qt::DropActions QProxyModel::supportedDropActions() const -{ - Q_D(const QProxyModel); - return d->model->supportedDropActions(); -} - -/*! - Inserts \a count rows into the model, creating new items as children of - the given \a parent. The new rows are inserted before the \a row - specified. If the \a parent item has no children, a single column is - created to contain the required number of rows. - - Returns true if the rows were successfully inserted; otherwise - returns false. - - \sa QAbstractItemModel::insertRows()*/ -bool QProxyModel::insertRows(int row, int count, const QModelIndex &parent) -{ - Q_D(const QProxyModel); - return d->model->insertRows(row, count, setSourceModel(parent)); -} - -/*! - Inserts \a count columns into the model, creating new items as children of - the given \a parent. The new columns are inserted before the \a column - specified. If the \a parent item has no children, a single row is created - to contain the required number of columns. - - Returns true if the columns were successfully inserted; otherwise - returns false. - - \sa QAbstractItemModel::insertColumns() -*/ -bool QProxyModel::insertColumns(int column, int count, const QModelIndex &parent) -{ - Q_D(const QProxyModel); - return d->model->insertColumns(column, count, setSourceModel(parent)); -} - -/*! - Fetches more child items of the given \a parent. This function is used by views - to tell the model that they can display more data than the model has provided. - - \sa QAbstractItemModel::fetchMore() -*/ -void QProxyModel::fetchMore(const QModelIndex &parent) -{ - Q_D(const QProxyModel); - d->model->fetchMore(parent); -} - -/*! - Returns the item flags for the given \a index. -*/ -Qt::ItemFlags QProxyModel::flags(const QModelIndex &index) const -{ - Q_D(const QProxyModel); - return d->model->flags(setSourceModel(index)); -} - -/*! - Sorts the child items in the specified \a column according to the sort - order defined by \a order. - - \sa QAbstractItemModel::sort() -*/ -void QProxyModel::sort(int column, Qt::SortOrder order) -{ - Q_D(QProxyModel); - d->model->sort(column, order); -} - -/*! - Returns a list of model indexes that each contain the given \a value for - the \a role specified. The search begins at the \a start index and is - performed according to the specified \a flags. The search continues until - the number of matching data items equals \a hits, the last row is reached, - or the search reaches \a start again, depending on whether \c MatchWrap is - specified in \a flags. - - \sa QAbstractItemModel::match() -*/ -QModelIndexList QProxyModel::match(const QModelIndex &start, - int role, const QVariant &value, - int hits, Qt::MatchFlags flags) const -{ - Q_D(const QProxyModel); - return d->model->match(start, role, value, hits, flags); -} - -/*! - Returns the size of the item that corresponds to the specified \a index. -*/ -QSize QProxyModel::span(const QModelIndex &index) const -{ - Q_D(const QProxyModel); - return d->model->span(setSourceModel(index)); -} - -/*! - */ -bool QProxyModel::submit() -{ - Q_D(QProxyModel); - return d->model->submit(); -} - -/*! - */ -void QProxyModel::revert() -{ - Q_D(QProxyModel); - d->model->revert(); -} - -/*! - \internal - Change the model pointer in the given \a source_index to point to the proxy model. - */ -QModelIndex QProxyModel::setProxyModel(const QModelIndex &source_index) const -{ - QModelIndex proxy_index = source_index; - if (proxy_index.isValid()) - proxy_index.m = this; - return proxy_index; -} - -/*! - \internal - Change the model pointer in the given \a proxy_index to point to the source model. - */ -QModelIndex QProxyModel::setSourceModel(const QModelIndex &proxy_index) const -{ - Q_D(const QProxyModel); - QModelIndex source_index = proxy_index; - source_index.m = d->model; - return source_index; -} - -/*! - \internal - Connect to all the signals emitted by given \a model. -*/ -void QProxyModel::connectToModel(const QAbstractItemModel *model) const -{ - connect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), - this, SLOT(_q_sourceDataChanged(QModelIndex,QModelIndex))); - connect(model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), - this, SIGNAL(headerDataChanged(Qt::Orientation,int,int))); // signal to signal - connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsAboutToBeInserted(QModelIndex,int,int))); - connect(model, SIGNAL(rowsInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsInserted(QModelIndex,int,int))); - connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsAboutToBeRemoved(QModelIndex,int,int))); - connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsRemoved(QModelIndex,int,int))); - connect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsAboutToBeInserted(QModelIndex,int,int))); - connect(model, SIGNAL(columnsInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsInserted(QModelIndex,int,int))); - connect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsAboutToBeRemoved(QModelIndex,int,int))); - connect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsRemoved(QModelIndex,int,int))); - connect(model, SIGNAL(modelReset()), this, SIGNAL(modelReset())); // signal to signal - connect(model, SIGNAL(layoutAboutToBeChanged()), this, SIGNAL(layoutAboutToBeChanged())); // signal to signal - connect(model, SIGNAL(layoutChanged()), this, SIGNAL(layoutChanged())); // signal to signal -} - -/*! - \internal - Disconnect from all the signals emitted by the given \a model. - */ -void QProxyModel::disconnectFromModel(const QAbstractItemModel *model) const -{ - disconnect(model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), - this, SLOT(_q_sourceDataChanged(QModelIndex,QModelIndex))); - disconnect(model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), - this, SIGNAL(headerDataChanged(Qt::Orientation,int,int))); // signal to signal - disconnect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsAboutToBeInserted(QModelIndex,int,int))); - disconnect(model, SIGNAL(rowsInserted(QModelIndex,int,int)), - this, SLOT(rowsInserted(QModelIndex,int,int))); - disconnect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsAboutToBeRemoved(QModelIndex,int,int))); - disconnect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceRowsRemoved(QModelIndex,int,int))); - disconnect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsAboutToBeInserted(QModelIndex,int,int))); - disconnect(model, SIGNAL(columnsInserted(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsInserted(QModelIndex,int,int))); - disconnect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsAboutToBeRemoved(QModelIndex,int,int))); - disconnect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)), - this, SLOT(_q_sourceColumnsRemoved(QModelIndex,int,int))); - disconnect(model, SIGNAL(modelReset()), this, SIGNAL(modelReset())); // signal to signal - disconnect(model, SIGNAL(layoutAboutToBeChanged()), this, SIGNAL(layoutAboutToBeChanged())); // signal to signal - disconnect(model, SIGNAL(layoutChanged()), this, SIGNAL(layoutChanged())); // signal to signal -} - -/*! - \fn QObject *QProxyModel::parent() const - \internal -*/ - -void QProxyModelPrivate::_q_sourceDataChanged(const QModelIndex &tl,const QModelIndex &br) -{ - Q_Q(QProxyModel); - emit q->dataChanged(q->setProxyModel(tl), q->setProxyModel(br)); -} - -void QProxyModelPrivate::_q_sourceRowsAboutToBeInserted(const QModelIndex &parent, int first ,int last) -{ - Q_Q(QProxyModel); - q->beginInsertRows(q->setProxyModel(parent), first, last); -} - -void QProxyModelPrivate::_q_sourceRowsInserted(const QModelIndex &, int, int) -{ - Q_Q(QProxyModel); - q->endInsertRows(); -} - -void QProxyModelPrivate::_q_sourceRowsAboutToBeRemoved(const QModelIndex &parent, int first, int last) -{ - Q_Q(QProxyModel); - q->beginRemoveRows(q->setProxyModel(parent), first, last); -} - -void QProxyModelPrivate::_q_sourceRowsRemoved(const QModelIndex &, int, int) -{ - Q_Q(QProxyModel); - q->endRemoveRows(); -} - -void QProxyModelPrivate::_q_sourceColumnsAboutToBeInserted(const QModelIndex &parent, int first, int last) -{ - Q_Q(QProxyModel); - q->beginInsertColumns(q->setProxyModel(parent), first, last); -} - -void QProxyModelPrivate::_q_sourceColumnsInserted(const QModelIndex &, int, int) -{ - Q_Q(QProxyModel); - q->endInsertColumns(); -} - -void QProxyModelPrivate::_q_sourceColumnsAboutToBeRemoved(const QModelIndex &parent, int first, int last) -{ - Q_Q(QProxyModel); - q->beginRemoveColumns(q->setProxyModel(parent), first, last); -} - - -void QProxyModelPrivate::_q_sourceColumnsRemoved(const QModelIndex &, int, int) -{ - Q_Q(QProxyModel); - q->endRemoveColumns(); -} - -QT_END_NAMESPACE - -#include "moc_qproxymodel.cpp" - -#endif // QT_NO_PROXYMODEL |