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Diffstat (limited to 'src/gui/itemviews/qdirmodel.cpp')
| -rw-r--r-- | src/gui/itemviews/qdirmodel.cpp | 1406 |
1 files changed, 0 insertions, 1406 deletions
diff --git a/src/gui/itemviews/qdirmodel.cpp b/src/gui/itemviews/qdirmodel.cpp deleted file mode 100644 index 203ac69c12..0000000000 --- a/src/gui/itemviews/qdirmodel.cpp +++ /dev/null @@ -1,1406 +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 "qdirmodel.h" - -#ifndef QT_NO_DIRMODEL -#include <qstack.h> -#include <qfile.h> -#include <qfilesystemmodel.h> -#include <qurl.h> -#include <qmime.h> -#include <qpair.h> -#include <qvector.h> -#include <qobject.h> -#include <qdatetime.h> -#include <qlocale.h> -#include <qstyle.h> -#include <qapplication.h> -#include <private/qabstractitemmodel_p.h> -#include <qdebug.h> - -/*! - \enum QDirModel::Roles - \value FileIconRole - \value FilePathRole - \value FileNameRole -*/ - -QT_BEGIN_NAMESPACE - -class QDirModelPrivate : public QAbstractItemModelPrivate -{ - Q_DECLARE_PUBLIC(QDirModel) - -public: - struct QDirNode - { - QDirNode() : parent(0), populated(false), stat(false) {} - ~QDirNode() { children.clear(); } - QDirNode *parent; - QFileInfo info; - QIcon icon; // cache the icon - mutable QVector<QDirNode> children; - mutable bool populated; // have we read the children - mutable bool stat; - }; - - QDirModelPrivate() - : resolveSymlinks(true), - readOnly(true), - lazyChildCount(false), - allowAppendChild(true), - iconProvider(&defaultProvider), - shouldStat(true) // ### This is set to false by QFileDialog - { } - - void init(); - QDirNode *node(int row, QDirNode *parent) const; - QVector<QDirNode> children(QDirNode *parent, bool stat) const; - - void _q_refresh(); - - void savePersistentIndexes(); - void restorePersistentIndexes(); - - QFileInfoList entryInfoList(const QString &path) const; - QStringList entryList(const QString &path) const; - - QString name(const QModelIndex &index) const; - QString size(const QModelIndex &index) const; - QString type(const QModelIndex &index) const; - QString time(const QModelIndex &index) const; - - void appendChild(QDirModelPrivate::QDirNode *parent, const QString &path) const; - static QFileInfo resolvedInfo(QFileInfo info); - - inline QDirNode *node(const QModelIndex &index) const; - inline void populate(QDirNode *parent) const; - inline void clear(QDirNode *parent) const; - - void invalidate(); - - mutable QDirNode root; - bool resolveSymlinks; - bool readOnly; - bool lazyChildCount; - bool allowAppendChild; - - QDir::Filters filters; - QDir::SortFlags sort; - QStringList nameFilters; - - QFileIconProvider *iconProvider; - QFileIconProvider defaultProvider; - - struct SavedPersistent { - QString path; - int column; - QPersistentModelIndexData *data; - QPersistentModelIndex index; - }; - QList<SavedPersistent> savedPersistent; - QPersistentModelIndex toBeRefreshed; - - bool shouldStat; // use the "carefull not to stat directories" mode -}; - -void qt_setDirModelShouldNotStat(QDirModelPrivate *modelPrivate) -{ - modelPrivate->shouldStat = false; -} - -QDirModelPrivate::QDirNode *QDirModelPrivate::node(const QModelIndex &index) const -{ - QDirModelPrivate::QDirNode *n = - static_cast<QDirModelPrivate::QDirNode*>(index.internalPointer()); - Q_ASSERT(n); - return n; -} - -void QDirModelPrivate::populate(QDirNode *parent) const -{ - Q_ASSERT(parent); - parent->children = children(parent, parent->stat); - parent->populated = true; -} - -void QDirModelPrivate::clear(QDirNode *parent) const -{ - Q_ASSERT(parent); - parent->children.clear(); - parent->populated = false; -} - -void QDirModelPrivate::invalidate() -{ - QStack<const QDirNode*> nodes; - nodes.push(&root); - while (!nodes.empty()) { - const QDirNode *current = nodes.pop(); - current->stat = false; - const QVector<QDirNode> children = current->children; - for (int i = 0; i < children.count(); ++i) - nodes.push(&children.at(i)); - } -} - -/*! - \class QDirModel - \obsolete - \brief The QDirModel class provides a data model for the local filesystem. - - \ingroup model-view - - The usage of QDirModel is not recommended anymore. The - QFileSystemModel class is a more performant alternative. - - This class provides access to the local filesystem, providing functions - for renaming and removing files and directories, and for creating new - directories. In the simplest case, it can be used with a suitable display - widget as part of a browser or filer. - - QDirModel keeps a cache with file information. The cache needs to be - updated with refresh(). - - QDirModel can be accessed using the standard interface provided by - QAbstractItemModel, but it also provides some convenience functions - that are specific to a directory model. The fileInfo() and isDir() - functions provide information about the underlying files and directories - related to items in the model. - - Directories can be created and removed using mkdir(), rmdir(), and the - model will be automatically updated to take the changes into account. - - \note QDirModel requires an instance of a GUI application. - - \sa nameFilters(), setFilter(), filter(), QListView, QTreeView, QFileSystemModel, - {Dir View Example}, {Model Classes} -*/ - -/*! - Constructs a new directory model with the given \a parent. - Only those files matching the \a nameFilters and the - \a filters are included in the model. The sort order is given by the - \a sort flags. -*/ - -QDirModel::QDirModel(const QStringList &nameFilters, - QDir::Filters filters, - QDir::SortFlags sort, - QObject *parent) - : QAbstractItemModel(*new QDirModelPrivate, parent) -{ - Q_D(QDirModel); - // we always start with QDir::drives() - d->nameFilters = nameFilters.isEmpty() ? QStringList(QLatin1String("*")) : nameFilters; - d->filters = filters; - d->sort = sort; - d->root.parent = 0; - d->root.info = QFileInfo(); - d->clear(&d->root); -} - -/*! - Constructs a directory model with the given \a parent. -*/ - -QDirModel::QDirModel(QObject *parent) - : QAbstractItemModel(*new QDirModelPrivate, parent) -{ - Q_D(QDirModel); - d->init(); -} - -/*! - \internal -*/ -QDirModel::QDirModel(QDirModelPrivate &dd, QObject *parent) - : QAbstractItemModel(dd, parent) -{ - Q_D(QDirModel); - d->init(); -} - -/*! - Destroys this directory model. -*/ - -QDirModel::~QDirModel() -{ - -} - -/*! - Returns the model item index for the item in the \a parent with the - given \a row and \a column. - -*/ - -QModelIndex QDirModel::index(int row, int column, const QModelIndex &parent) const -{ - Q_D(const QDirModel); - // note that rowCount does lazy population - if (column < 0 || column >= columnCount(parent) || row < 0 || parent.column() > 0) - return QModelIndex(); - // make sure the list of children is up to date - QDirModelPrivate::QDirNode *p = (d->indexValid(parent) ? d->node(parent) : &d->root); - Q_ASSERT(p); - if (!p->populated) - d->populate(p); // populate without stat'ing - if (row >= p->children.count()) - return QModelIndex(); - // now get the internal pointer for the index - QDirModelPrivate::QDirNode *n = d->node(row, d->indexValid(parent) ? p : 0); - Q_ASSERT(n); - - return createIndex(row, column, n); -} - -/*! - Return the parent of the given \a child model item. -*/ - -QModelIndex QDirModel::parent(const QModelIndex &child) const -{ - Q_D(const QDirModel); - - if (!d->indexValid(child)) - return QModelIndex(); - QDirModelPrivate::QDirNode *node = d->node(child); - QDirModelPrivate::QDirNode *par = (node ? node->parent : 0); - if (par == 0) // parent is the root node - return QModelIndex(); - - // get the parent's row - const QVector<QDirModelPrivate::QDirNode> children = - par->parent ? par->parent->children : d->root.children; - Q_ASSERT(children.count() > 0); - int row = (par - &(children.at(0))); - Q_ASSERT(row >= 0); - - return createIndex(row, 0, par); -} - -/*! - Returns the number of rows in the \a parent model item. - -*/ - -int QDirModel::rowCount(const QModelIndex &parent) const -{ - Q_D(const QDirModel); - if (parent.column() > 0) - return 0; - - if (!parent.isValid()) { - if (!d->root.populated) // lazy population - d->populate(&d->root); - return d->root.children.count(); - } - if (parent.model() != this) - return 0; - QDirModelPrivate::QDirNode *p = d->node(parent); - if (p->info.isDir() && !p->populated) // lazy population - d->populate(p); - return p->children.count(); -} - -/*! - Returns the number of columns in the \a parent model item. - -*/ - -int QDirModel::columnCount(const QModelIndex &parent) const -{ - if (parent.column() > 0) - return 0; - return 4; -} - -/*! - Returns the data for the model item \a index with the given \a role. -*/ -QVariant QDirModel::data(const QModelIndex &index, int role) const -{ - Q_D(const QDirModel); - if (!d->indexValid(index)) - return QVariant(); - - if (role == Qt::DisplayRole || role == Qt::EditRole) { - switch (index.column()) { - case 0: return d->name(index); - case 1: return d->size(index); - case 2: return d->type(index); - case 3: return d->time(index); - default: - qWarning("data: invalid display value column %d", index.column()); - return QVariant(); - } - } - - if (index.column() == 0) { - if (role == FileIconRole) - return fileIcon(index); - if (role == FilePathRole) - return filePath(index); - if (role == FileNameRole) - return fileName(index); - } - - if (index.column() == 1 && Qt::TextAlignmentRole == role) { - return Qt::AlignRight; - } - return QVariant(); -} - -/*! - Sets the data for the model item \a index with the given \a role to - the data referenced by the \a value. Returns true if successful; - otherwise returns false. - - \sa Qt::ItemDataRole -*/ - -bool QDirModel::setData(const QModelIndex &index, const QVariant &value, int role) -{ - Q_D(QDirModel); - if (!d->indexValid(index) || index.column() != 0 - || (flags(index) & Qt::ItemIsEditable) == 0 || role != Qt::EditRole) - return false; - - QDirModelPrivate::QDirNode *node = d->node(index); - QDir dir = node->info.dir(); - QString name = value.toString(); - if (dir.rename(node->info.fileName(), name)) { - node->info = QFileInfo(dir, name); - QModelIndex sibling = index.sibling(index.row(), 3); - emit dataChanged(index, sibling); - - d->toBeRefreshed = index.parent(); - QMetaObject::invokeMethod(this, "_q_refresh", Qt::QueuedConnection); - - return true; - } - - return false; -} - -/*! - Returns the data stored under the given \a role for the specified \a section - of the header with the given \a orientation. -*/ - -QVariant QDirModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - if (orientation == Qt::Horizontal) { - if (role != Qt::DisplayRole) - return QVariant(); - switch (section) { - case 0: return tr("Name"); - case 1: return tr("Size"); - case 2: return -#ifdef Q_OS_MAC - tr("Kind", "Match OS X Finder"); -#else - tr("Type", "All other platforms"); -#endif - // Windows - Type - // OS X - Kind - // Konqueror - File Type - // Nautilus - Type - case 3: return tr("Date Modified"); - default: return QVariant(); - } - } - return QAbstractItemModel::headerData(section, orientation, role); -} - -/*! - Returns true if the \a parent model item has children; otherwise - returns false. -*/ - -bool QDirModel::hasChildren(const QModelIndex &parent) const -{ - Q_D(const QDirModel); - if (parent.column() > 0) - return false; - - if (!parent.isValid()) // the invalid index is the "My Computer" item - return true; // the drives - QDirModelPrivate::QDirNode *p = d->node(parent); - Q_ASSERT(p); - - if (d->lazyChildCount) // optimization that only checks for children if the node has been populated - return p->info.isDir(); - return p->info.isDir() && rowCount(parent) > 0; -} - -/*! - Returns the item flags for the given \a index in the model. - - \sa Qt::ItemFlags -*/ -Qt::ItemFlags QDirModel::flags(const QModelIndex &index) const -{ - Q_D(const QDirModel); - Qt::ItemFlags flags = QAbstractItemModel::flags(index); - if (!d->indexValid(index)) - return flags; - flags |= Qt::ItemIsDragEnabled; - if (d->readOnly) - return flags; - QDirModelPrivate::QDirNode *node = d->node(index); - if ((index.column() == 0) && node->info.isWritable()) { - flags |= Qt::ItemIsEditable; - if (fileInfo(index).isDir()) // is directory and is editable - flags |= Qt::ItemIsDropEnabled; - } - return flags; -} - -/*! - Sort the model items in the \a column using the \a order given. - The order is a value defined in \l Qt::SortOrder. -*/ - -void QDirModel::sort(int column, Qt::SortOrder order) -{ - QDir::SortFlags sort = QDir::DirsFirst | QDir::IgnoreCase; - if (order == Qt::DescendingOrder) - sort |= QDir::Reversed; - - switch (column) { - case 0: - sort |= QDir::Name; - break; - case 1: - sort |= QDir::Size; - break; - case 2: - sort |= QDir::Type; - break; - case 3: - sort |= QDir::Time; - break; - default: - break; - } - - setSorting(sort); -} - -/*! - Returns a list of MIME types that can be used to describe a list of items - in the model. -*/ - -QStringList QDirModel::mimeTypes() const -{ - return QStringList(QLatin1String("text/uri-list")); -} - -/*! - Returns an object that contains a serialized description of the specified - \a indexes. The format used to describe the items corresponding to the - indexes is obtained from the mimeTypes() function. - - If the list of indexes is empty, 0 is returned rather than a serialized - empty list. -*/ - -QMimeData *QDirModel::mimeData(const QModelIndexList &indexes) const -{ - QList<QUrl> urls; - QList<QModelIndex>::const_iterator it = indexes.begin(); - for (; it != indexes.end(); ++it) - if ((*it).column() == 0) - urls << QUrl::fromLocalFile(filePath(*it)); - QMimeData *data = new QMimeData(); - data->setUrls(urls); - return data; -} - -/*! - Handles the \a data supplied by a drag and drop operation that ended with - the given \a action over the row in the model specified by the \a row and - \a column and by the \a parent index. - - \sa supportedDropActions() -*/ - -bool QDirModel::dropMimeData(const QMimeData *data, Qt::DropAction action, - int /* row */, int /* column */, const QModelIndex &parent) -{ - Q_D(QDirModel); - if (!d->indexValid(parent) || isReadOnly()) - return false; - - bool success = true; - QString to = filePath(parent) + QDir::separator(); - QModelIndex _parent = parent; - - QList<QUrl> urls = data->urls(); - QList<QUrl>::const_iterator it = urls.constBegin(); - - switch (action) { - case Qt::CopyAction: - for (; it != urls.constEnd(); ++it) { - QString path = (*it).toLocalFile(); - success = QFile::copy(path, to + QFileInfo(path).fileName()) && success; - } - break; - case Qt::LinkAction: - for (; it != urls.constEnd(); ++it) { - QString path = (*it).toLocalFile(); - success = QFile::link(path, to + QFileInfo(path).fileName()) && success; - } - break; - case Qt::MoveAction: - for (; it != urls.constEnd(); ++it) { - QString path = (*it).toLocalFile(); - if (QFile::copy(path, to + QFileInfo(path).fileName()) - && QFile::remove(path)) { - QModelIndex idx=index(QFileInfo(path).path()); - if (idx.isValid()) { - refresh(idx); - //the previous call to refresh may invalidate the _parent. so recreate a new QModelIndex - _parent = index(to); - } - } else { - success = false; - } - } - break; - default: - return false; - } - - if (success) - refresh(_parent); - - return success; -} - -/*! - Returns the drop actions supported by this model. - - \sa Qt::DropActions -*/ - -Qt::DropActions QDirModel::supportedDropActions() const -{ - return Qt::CopyAction | Qt::MoveAction; // FIXME: LinkAction is not supported yet -} - -/*! - Sets the \a provider of file icons for the directory model. - -*/ - -void QDirModel::setIconProvider(QFileIconProvider *provider) -{ - Q_D(QDirModel); - d->iconProvider = provider; -} - -/*! - Returns the file icon provider for this directory model. -*/ - -QFileIconProvider *QDirModel::iconProvider() const -{ - Q_D(const QDirModel); - return d->iconProvider; -} - -/*! - Sets the name \a filters for the directory model. -*/ - -void QDirModel::setNameFilters(const QStringList &filters) -{ - Q_D(QDirModel); - d->nameFilters = filters; - emit layoutAboutToBeChanged(); - if (d->shouldStat) - refresh(QModelIndex()); - else - d->invalidate(); - emit layoutChanged(); -} - -/*! - Returns a list of filters applied to the names in the model. -*/ - -QStringList QDirModel::nameFilters() const -{ - Q_D(const QDirModel); - return d->nameFilters; -} - -/*! - Sets the directory model's filter to that specified by \a filters. - - Note that the filter you set should always include the QDir::AllDirs enum value, - otherwise QDirModel won't be able to read the directory structure. - - \sa QDir::Filters -*/ - -void QDirModel::setFilter(QDir::Filters filters) -{ - Q_D(QDirModel); - d->filters = filters; - emit layoutAboutToBeChanged(); - if (d->shouldStat) - refresh(QModelIndex()); - else - d->invalidate(); - emit layoutChanged(); -} - -/*! - Returns the filter specification for the directory model. - - \sa QDir::Filters -*/ - -QDir::Filters QDirModel::filter() const -{ - Q_D(const QDirModel); - return d->filters; -} - -/*! - Sets the directory model's sorting order to that specified by \a sort. - - \sa QDir::SortFlags -*/ - -void QDirModel::setSorting(QDir::SortFlags sort) -{ - Q_D(QDirModel); - d->sort = sort; - emit layoutAboutToBeChanged(); - if (d->shouldStat) - refresh(QModelIndex()); - else - d->invalidate(); - emit layoutChanged(); -} - -/*! - Returns the sorting method used for the directory model. - - \sa QDir::SortFlags */ - -QDir::SortFlags QDirModel::sorting() const -{ - Q_D(const QDirModel); - return d->sort; -} - -/*! - \property QDirModel::resolveSymlinks - \brief Whether the directory model should resolve symbolic links - - This is only relevant on operating systems that support symbolic - links. -*/ -void QDirModel::setResolveSymlinks(bool enable) -{ - Q_D(QDirModel); - d->resolveSymlinks = enable; -} - -bool QDirModel::resolveSymlinks() const -{ - Q_D(const QDirModel); - return d->resolveSymlinks; -} - -/*! - \property QDirModel::readOnly - \brief Whether the directory model allows writing to the file system - - If this property is set to false, the directory model will allow renaming, copying - and deleting of files and directories. - - This property is true by default -*/ - -void QDirModel::setReadOnly(bool enable) -{ - Q_D(QDirModel); - d->readOnly = enable; -} - -bool QDirModel::isReadOnly() const -{ - Q_D(const QDirModel); - return d->readOnly; -} - -/*! - \property QDirModel::lazyChildCount - \brief Whether the directory model optimizes the hasChildren function - to only check if the item is a directory. - - If this property is set to false, the directory model will make sure that a directory - actually containes any files before reporting that it has children. - Otherwise the directory model will report that an item has children if the item - is a directory. - - This property is false by default -*/ - -void QDirModel::setLazyChildCount(bool enable) -{ - Q_D(QDirModel); - d->lazyChildCount = enable; -} - -bool QDirModel::lazyChildCount() const -{ - Q_D(const QDirModel); - return d->lazyChildCount; -} - -/*! - QDirModel caches file information. This function updates the - cache. The \a parent parameter is the directory from which the - model is updated; the default value will update the model from - root directory of the file system (the entire model). -*/ - -void QDirModel::refresh(const QModelIndex &parent) -{ - Q_D(QDirModel); - - QDirModelPrivate::QDirNode *n = d->indexValid(parent) ? d->node(parent) : &(d->root); - - int rows = n->children.count(); - if (rows == 0) { - emit layoutAboutToBeChanged(); - n->stat = true; // make sure that next time we read all the info - n->populated = false; - emit layoutChanged(); - return; - } - - emit layoutAboutToBeChanged(); - d->savePersistentIndexes(); - d->rowsAboutToBeRemoved(parent, 0, rows - 1); - n->stat = true; // make sure that next time we read all the info - d->clear(n); - d->rowsRemoved(parent, 0, rows - 1); - d->restorePersistentIndexes(); - emit layoutChanged(); -} - -/*! - \overload - - Returns the model item index for the given \a path. -*/ - -QModelIndex QDirModel::index(const QString &path, int column) const -{ - Q_D(const QDirModel); - - if (path.isEmpty() || path == QCoreApplication::translate("QFileDialog", "My Computer")) - return QModelIndex(); - - QString absolutePath = QDir(path).absolutePath(); -#if (defined(Q_OS_WIN) && !defined(Q_OS_WINCE)) || defined(Q_OS_SYMBIAN) - absolutePath = absolutePath.toLower(); -#endif -#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) - // On Windows, "filename......." and "filename" are equivalent - if (absolutePath.endsWith(QLatin1Char('.'))) { - int i; - for (i = absolutePath.count() - 1; i >= 0; --i) { - if (absolutePath.at(i) != QLatin1Char('.')) - break; - } - absolutePath = absolutePath.left(i+1); - } -#endif - - QStringList pathElements = absolutePath.split(QLatin1Char('/'), QString::SkipEmptyParts); - if ((pathElements.isEmpty() || !QFileInfo(path).exists()) -#if !defined(Q_OS_WIN) || defined(Q_OS_WINCE) - && path != QLatin1String("/") -#endif - ) - return QModelIndex(); - - QModelIndex idx; // start with "My Computer" - if (!d->root.populated) // make sure the root is populated - d->populate(&d->root); - -#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) - if (absolutePath.startsWith(QLatin1String("//"))) { // UNC path - QString host = pathElements.first(); - int r = 0; - for (; r < d->root.children.count(); ++r) - if (d->root.children.at(r).info.fileName() == host) - break; - bool childAppended = false; - if (r >= d->root.children.count() && d->allowAppendChild) { - d->appendChild(&d->root, QLatin1String("//") + host); - childAppended = true; - } - idx = index(r, 0, QModelIndex()); - pathElements.pop_front(); - if (childAppended) - emit const_cast<QDirModel*>(this)->layoutChanged(); - } else -#endif -#if (defined(Q_OS_WIN) && !defined(Q_OS_WINCE)) || defined(Q_OS_SYMBIAN) - if (pathElements.at(0).endsWith(QLatin1Char(':'))) { - pathElements[0] += QLatin1Char('/'); - } -#else - // add the "/" item, since it is a valid path element on unix - pathElements.prepend(QLatin1String("/")); -#endif - - for (int i = 0; i < pathElements.count(); ++i) { - Q_ASSERT(!pathElements.at(i).isEmpty()); - QString element = pathElements.at(i); - QDirModelPrivate::QDirNode *parent = (idx.isValid() ? d->node(idx) : &d->root); - - Q_ASSERT(parent); - if (!parent->populated) - d->populate(parent); - - // search for the element in the child nodes first - int row = -1; - for (int j = parent->children.count() - 1; j >= 0; --j) { - const QFileInfo& fi = parent->children.at(j).info; - QString childFileName; - childFileName = idx.isValid() ? fi.fileName() : fi.absoluteFilePath(); -#if (defined(Q_OS_WIN) && !defined(Q_OS_WINCE)) || defined(Q_OS_SYMBIAN) - childFileName = childFileName.toLower(); -#endif - if (childFileName == element) { - if (i == pathElements.count() - 1) - parent->children[j].stat = true; - row = j; - break; - } - } - - // we couldn't find the path element, we create a new node since we _know_ that the path is valid - if (row == -1) { -#if defined(Q_OS_WINCE) - QString newPath; - if (parent->info.isRoot()) - newPath = parent->info.absoluteFilePath() + element; - else - newPath = parent->info.absoluteFilePath() + QLatin1Char('/') + element; -#else - QString newPath = parent->info.absoluteFilePath() + QLatin1Char('/') + element; -#endif - if (!d->allowAppendChild || !QFileInfo(newPath).isDir()) - return QModelIndex(); - d->appendChild(parent, newPath); - row = parent->children.count() - 1; - if (i == pathElements.count() - 1) // always stat children of the last element - parent->children[row].stat = true; - emit const_cast<QDirModel*>(this)->layoutChanged(); - } - - Q_ASSERT(row >= 0); - idx = createIndex(row, 0, static_cast<void*>(&parent->children[row])); - Q_ASSERT(idx.isValid()); - } - - if (column != 0) - return idx.sibling(idx.row(), column); - return idx; -} - -/*! - Returns true if the model item \a index represents a directory; - otherwise returns false. -*/ - -bool QDirModel::isDir(const QModelIndex &index) const -{ - Q_D(const QDirModel); - Q_ASSERT(d->indexValid(index)); - QDirModelPrivate::QDirNode *node = d->node(index); - return node->info.isDir(); -} - -/*! - Create a directory with the \a name in the \a parent model item. -*/ - -QModelIndex QDirModel::mkdir(const QModelIndex &parent, const QString &name) -{ - Q_D(QDirModel); - if (!d->indexValid(parent) || isReadOnly()) - return QModelIndex(); - - QDirModelPrivate::QDirNode *p = d->node(parent); - QString path = p->info.absoluteFilePath(); - // For the indexOf() method to work, the new directory has to be a direct child of - // the parent directory. - - QDir newDir(name); - QDir dir(path); - if (newDir.isRelative()) - newDir = QDir(path + QLatin1Char('/') + name); - QString childName = newDir.dirName(); // Get the singular name of the directory - newDir.cdUp(); - - if (newDir.absolutePath() != dir.absolutePath() || !dir.mkdir(name)) - return QModelIndex(); // nothing happened - - refresh(parent); - - QStringList entryList = d->entryList(path); - int r = entryList.indexOf(childName); - QModelIndex i = index(r, 0, parent); // return an invalid index - - return i; -} - -/*! - Removes the directory corresponding to the model item \a index in the - directory model and \bold{deletes the corresponding directory from the - file system}, returning true if successful. If the directory cannot be - removed, false is returned. - - \warning This function deletes directories from the file system; it does - \bold{not} move them to a location where they can be recovered. - - \sa remove() -*/ - -bool QDirModel::rmdir(const QModelIndex &index) -{ - Q_D(QDirModel); - if (!d->indexValid(index) || isReadOnly()) - return false; - - QDirModelPrivate::QDirNode *n = d_func()->node(index); - if (!n->info.isDir()) { - qWarning("rmdir: the node is not a directory"); - return false; - } - - QModelIndex par = parent(index); - QDirModelPrivate::QDirNode *p = d_func()->node(par); - QDir dir = p->info.dir(); // parent dir - QString path = n->info.absoluteFilePath(); - if (!dir.rmdir(path)) - return false; - - refresh(par); - - return true; -} - -/*! - Removes the model item \a index from the directory model and \bold{deletes the - corresponding file from the file system}, returning true if successful. If the - item cannot be removed, false is returned. - - \warning This function deletes files from the file system; it does \bold{not} - move them to a location where they can be recovered. - - \sa rmdir() -*/ - -bool QDirModel::remove(const QModelIndex &index) -{ - Q_D(QDirModel); - if (!d->indexValid(index) || isReadOnly()) - return false; - - QDirModelPrivate::QDirNode *n = d_func()->node(index); - if (n->info.isDir()) - return false; - - QModelIndex par = parent(index); - QDirModelPrivate::QDirNode *p = d_func()->node(par); - QDir dir = p->info.dir(); // parent dir - QString path = n->info.absoluteFilePath(); - if (!dir.remove(path)) - return false; - - refresh(par); - - return true; -} - -/*! - Returns the path of the item stored in the model under the - \a index given. - -*/ - -QString QDirModel::filePath(const QModelIndex &index) const -{ - Q_D(const QDirModel); - if (d->indexValid(index)) { - QFileInfo fi = fileInfo(index); - if (d->resolveSymlinks && fi.isSymLink()) - fi = d->resolvedInfo(fi); - return QDir::cleanPath(fi.absoluteFilePath()); - } - return QString(); // root path -} - -/*! - Returns the name of the item stored in the model under the - \a index given. - -*/ - -QString QDirModel::fileName(const QModelIndex &index) const -{ - Q_D(const QDirModel); - if (!d->indexValid(index)) - return QString(); - QFileInfo info = fileInfo(index); - if (info.isRoot()) - return info.absoluteFilePath(); - if (d->resolveSymlinks && info.isSymLink()) - info = d->resolvedInfo(info); - return info.fileName(); -} - -/*! - Returns the icons for the item stored in the model under the given - \a index. -*/ - -QIcon QDirModel::fileIcon(const QModelIndex &index) const -{ - Q_D(const QDirModel); - if (!d->indexValid(index)) - return d->iconProvider->icon(QFileIconProvider::Computer); - QDirModelPrivate::QDirNode *node = d->node(index); - if (node->icon.isNull()) - node->icon = d->iconProvider->icon(node->info); - return node->icon; -} - -/*! - Returns the file information for the specified model \a index. - - \bold{Note:} If the model index represents a symbolic link in the - underlying filing system, the file information returned will contain - information about the symbolic link itself, regardless of whether - resolveSymlinks is enabled or not. - - \sa QFileInfo::symLinkTarget() -*/ - -QFileInfo QDirModel::fileInfo(const QModelIndex &index) const -{ - Q_D(const QDirModel); - Q_ASSERT(d->indexValid(index)); - - QDirModelPrivate::QDirNode *node = d->node(index); - return node->info; -} - -/*! - \fn QObject *QDirModel::parent() const - \internal -*/ - -/* - The root node is never seen outside the model. -*/ - -void QDirModelPrivate::init() -{ - Q_Q(QDirModel); - filters = QDir::AllEntries | QDir::NoDotAndDotDot; - sort = QDir::Name; - nameFilters << QLatin1String("*"); - root.parent = 0; - root.info = QFileInfo(); - clear(&root); - QHash<int, QByteArray> roles = q->roleNames(); - roles.insertMulti(QDirModel::FileIconRole, "fileIcon"); // == Qt::decoration - roles.insert(QDirModel::FilePathRole, "filePath"); - roles.insert(QDirModel::FileNameRole, "fileName"); - q->setRoleNames(roles); -} - -QDirModelPrivate::QDirNode *QDirModelPrivate::node(int row, QDirNode *parent) const -{ - if (row < 0) - return 0; - - bool isDir = !parent || parent->info.isDir(); - QDirNode *p = (parent ? parent : &root); - if (isDir && !p->populated) - populate(p); // will also resolve symlinks - - if (row >= p->children.count()) { - qWarning("node: the row does not exist"); - return 0; - } - - return const_cast<QDirNode*>(&p->children.at(row)); -} - -QVector<QDirModelPrivate::QDirNode> QDirModelPrivate::children(QDirNode *parent, bool stat) const -{ - Q_ASSERT(parent); - QFileInfoList infoList; - if (parent == &root) { - parent = 0; - infoList = QDir::drives(); - } else if (parent->info.isDir()) { - //resolve directory links only if requested. - if (parent->info.isSymLink() && resolveSymlinks) { - QString link = parent->info.symLinkTarget(); - if (link.size() > 1 && link.at(link.size() - 1) == QDir::separator()) - link.chop(1); - if (stat) - infoList = entryInfoList(link); - else - infoList = QDir(link).entryInfoList(nameFilters, QDir::AllEntries | QDir::System); - } else { - if (stat) - infoList = entryInfoList(parent->info.absoluteFilePath()); - else - infoList = QDir(parent->info.absoluteFilePath()).entryInfoList(nameFilters, QDir::AllEntries | QDir::System); - } - } - - QVector<QDirNode> nodes(infoList.count()); - for (int i = 0; i < infoList.count(); ++i) { - QDirNode &node = nodes[i]; - node.parent = parent; - node.info = infoList.at(i); - node.populated = false; - node.stat = shouldStat; - } - - return nodes; -} - -void QDirModelPrivate::_q_refresh() -{ - Q_Q(QDirModel); - q->refresh(toBeRefreshed); - toBeRefreshed = QModelIndex(); -} - -void QDirModelPrivate::savePersistentIndexes() -{ - Q_Q(QDirModel); - savedPersistent.clear(); - foreach (QPersistentModelIndexData *data, persistent.indexes) { - SavedPersistent saved; - QModelIndex index = data->index; - saved.path = q->filePath(index); - saved.column = index.column(); - saved.data = data; - saved.index = index; - savedPersistent.append(saved); - } -} - -void QDirModelPrivate::restorePersistentIndexes() -{ - Q_Q(QDirModel); - bool allow = allowAppendChild; - allowAppendChild = false; - for (int i = 0; i < savedPersistent.count(); ++i) { - QPersistentModelIndexData *data = savedPersistent.at(i).data; - QString path = savedPersistent.at(i).path; - int column = savedPersistent.at(i).column; - QModelIndex idx = q->index(path, column); - if (idx != data->index || data->model == 0) { - //data->model may be equal to 0 if the model is getting destroyed - persistent.indexes.remove(data->index); - data->index = idx; - data->model = q; - if (idx.isValid()) - persistent.indexes.insert(idx, data); - } - } - savedPersistent.clear(); - allowAppendChild = allow; -} - -QFileInfoList QDirModelPrivate::entryInfoList(const QString &path) const -{ - const QDir dir(path); - return dir.entryInfoList(nameFilters, filters, sort); -} - -QStringList QDirModelPrivate::entryList(const QString &path) const -{ - const QDir dir(path); - return dir.entryList(nameFilters, filters, sort); -} - -QString QDirModelPrivate::name(const QModelIndex &index) const -{ - const QDirNode *n = node(index); - const QFileInfo info = n->info; - if (info.isRoot()) { - QString name = info.absoluteFilePath(); -#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) - if (name.startsWith(QLatin1Char('/'))) // UNC host - return info.fileName(); -#endif -#if (defined(Q_OS_WIN) && !defined(Q_OS_WINCE)) || defined(Q_OS_SYMBIAN) - if (name.endsWith(QLatin1Char('/'))) - name.chop(1); -#endif - return name; - } - return info.fileName(); -} - -QString QDirModelPrivate::size(const QModelIndex &index) const -{ - const QDirNode *n = node(index); - if (n->info.isDir()) { -#ifdef Q_OS_MAC - return QLatin1String("--"); -#else - return QLatin1String(""); -#endif - // Windows - "" - // OS X - "--" - // Konqueror - "4 KB" - // Nautilus - "9 items" (the number of children) - } - - // According to the Si standard KB is 1000 bytes, KiB is 1024 - // but on windows sizes are calulated by dividing by 1024 so we do what they do. - const quint64 kb = 1024; - const quint64 mb = 1024 * kb; - const quint64 gb = 1024 * mb; - const quint64 tb = 1024 * gb; - quint64 bytes = n->info.size(); - if (bytes >= tb) - return QFileSystemModel::tr("%1 TB").arg(QLocale().toString(qreal(bytes) / tb, 'f', 3)); - if (bytes >= gb) - return QFileSystemModel::tr("%1 GB").arg(QLocale().toString(qreal(bytes) / gb, 'f', 2)); - if (bytes >= mb) - return QFileSystemModel::tr("%1 MB").arg(QLocale().toString(qreal(bytes) / mb, 'f', 1)); - if (bytes >= kb) - return QFileSystemModel::tr("%1 KB").arg(QLocale().toString(bytes / kb)); - return QFileSystemModel::tr("%1 byte(s)").arg(QLocale().toString(bytes)); -} - -QString QDirModelPrivate::type(const QModelIndex &index) const -{ - return iconProvider->type(node(index)->info); -} - -QString QDirModelPrivate::time(const QModelIndex &index) const -{ -#ifndef QT_NO_DATESTRING - return node(index)->info.lastModified().toString(Qt::LocalDate); -#else - Q_UNUSED(index); - return QString(); -#endif -} - -void QDirModelPrivate::appendChild(QDirModelPrivate::QDirNode *parent, const QString &path) const -{ - QDirModelPrivate::QDirNode node; - node.populated = false; - node.stat = shouldStat; - node.parent = (parent == &root ? 0 : parent); - node.info = QFileInfo(path); - node.info.setCaching(true); - - // The following append(node) may reallocate the vector, thus - // we need to update the pointers to the childnodes parent. - QDirModelPrivate *that = const_cast<QDirModelPrivate *>(this); - that->savePersistentIndexes(); - parent->children.append(node); - for (int i = 0; i < parent->children.count(); ++i) { - QDirNode *childNode = &parent->children[i]; - for (int j = 0; j < childNode->children.count(); ++j) - childNode->children[j].parent = childNode; - } - that->restorePersistentIndexes(); -} - -QFileInfo QDirModelPrivate::resolvedInfo(QFileInfo info) -{ -#ifdef Q_OS_WIN - // On windows, we cannot create a shortcut to a shortcut. - return QFileInfo(info.symLinkTarget()); -#else - QStringList paths; - do { - QFileInfo link(info.symLinkTarget()); - if (link.isRelative()) - info.setFile(info.absolutePath(), link.filePath()); - else - info = link; - if (paths.contains(info.absoluteFilePath())) - return QFileInfo(); - paths.append(info.absoluteFilePath()); - } while (info.isSymLink()); - return info; -#endif -} - -QT_END_NAMESPACE - -#include "moc_qdirmodel.cpp" - -#endif // QT_NO_DIRMODEL |