QDirModelPrivate Class Reference

Inheritance diagram for QDirModelPrivate:

Classes
struct	QDirNode
struct	SavedPersistent

Public Functions
void	_q_refresh ()
void	appendChild (QDirModelPrivate::QDirNode *parent, const QString &path) const
QVector< QDirNode >	children (QDirNode *parent, bool stat) const
void	clear (QDirNode *parent) const
QFileInfoList	entryInfoList (const QString &path) const
QStringList	entryList (const QString &path) const
void	init ()
void	invalidate ()
QString	name (const QModelIndex &index) const
QDirNode *	node (int row, QDirNode *parent) const
QDirNode *	node (const QModelIndex &index) const
void	populate (QDirNode *parent) const
	QDirModelPrivate ()
void	restorePersistentIndexes ()
void	savePersistentIndexes ()
QString	size (const QModelIndex &index) const
QString	time (const QModelIndex &index) const
QString	type (const QModelIndex &index) const
Public Functions inherited from QAbstractItemModelPrivate
bool	allowMove (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
	Returns whether a move operation is valid. More...
void	columnsAboutToBeInserted (const QModelIndex &parent, int first, int last)
void	columnsAboutToBeRemoved (const QModelIndex &parent, int first, int last)
void	columnsInserted (const QModelIndex &parent, int first, int last)
void	columnsRemoved (const QModelIndex &parent, int first, int last)
QModelIndex	createIndex (int row, int column, void *data=0) const
QModelIndex	createIndex (int row, int column, int id) const
bool	indexValid (const QModelIndex &index) const
void	invalidatePersistentIndex (const QModelIndex &index)
void	invalidatePersistentIndexes ()
void	itemsAboutToBeMoved (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation)
void	itemsMoved (const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
void	movePersistentIndexes (QVector< QPersistentModelIndexData *> indexes, int change, const QModelIndex &parent, Qt::Orientation orientation)
	Moves persistent indexes indexes by amount change. More...
	QAbstractItemModelPrivate ()
void	removePersistentIndexData (QPersistentModelIndexData *data)
void	rowsAboutToBeInserted (const QModelIndex &parent, int first, int last)
void	rowsAboutToBeRemoved (const QModelIndex &parent, int first, int last)
void	rowsInserted (const QModelIndex &parent, int first, int last)
void	rowsRemoved (const QModelIndex &parent, int first, int last)
Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)
void	addConnection (int signal, Connection *c)
void	cleanConnectionLists ()
void	connectNotify (const char *signal)
void	deleteChildren ()
void	disconnectNotify (const char *signal)
bool	isSender (const QObject *receiver, const char *signal) const
bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...
void	moveToThread_helper ()
	QObjectPrivate (int version=QObjectPrivateVersion)
QObjectList	receiverList (const char *signal) const
QObjectList	senderList () const
void	setParent_helper (QObject *)
void	setThreadData_helper (QThreadData *currentData, QThreadData *targetData)
int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...
virtual	~QObjectPrivate ()
Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Static Public Functions
static QFileInfo	resolvedInfo (QFileInfo info)
Static Public Functions inherited from QAbstractItemModelPrivate
static const QHash< int, QByteArray > &	defaultRoleNames ()
static QAbstractItemModel *	staticEmptyModel ()
static bool	variantLessThan (const QVariant &v1, const QVariant &v2)
	This function is used by our Q{Tree,Widget,Table}WidgetModel classes to sort. More...
Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)
static QObjectPrivate *	get (QObject *o)
static void	resetCurrentSender (QObject *receiver, Sender *currentSender, Sender *previousSender)
static Sender *	setCurrentSender (QObject *receiver, Sender *sender)
static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Public Variables
bool	allowAppendChild
QFileIconProvider	defaultProvider
QDir::Filters	filters
QFileIconProvider *	iconProvider
bool	lazyChildCount
QStringList	nameFilters
bool	readOnly
bool	resolveSymlinks
QDirNode	root
QList< SavedPersistent >	savedPersistent
bool	shouldStat
QDir::SortFlags	sort
QPersistentModelIndex	toBeRefreshed
Public Variables inherited from QAbstractItemModelPrivate
QStack< Change >	changes
struct QAbstractItemModelPrivate::Persistent	persistent
QHash< int, QByteArray >	roleNames
Qt::DropActions	supportedDragActions
Public Variables inherited from QObjectPrivate
union {
QObject *   currentChildBeingDeleted
QAbstractDeclarativeData *   declarativeData
};
quint32	connectedSignals [2]
QObjectConnectionListVector *	connectionLists
Sender *	currentSender
QList< QPointer< QObject > >	eventFilters
ExtraData *	extraData
QString	objectName
Connection *	senders
QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount
QThreadData *	threadData
void *	unused
Public Variables inherited from QObjectData
uint	blockSig: 1
QObjectList	children
uint	hasGuards: 1
uint	inEventHandler: 1
uint	inThreadChangeEvent: 1
uint	isWidget: 1
QMetaObject *	metaObject
uint	ownObjectName: 1
QObject *	parent
uint	pendTimer: 1
int	postedEvents
QObject *	q_ptr
uint	receiveChildEvents: 1
uint	sendChildEvents: 1
uint	unused: 22
uint	wasDeleted: 1

Additional Inherited Members
Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject *, QMetaObject::Call, int, void **)

Detailed Description

Definition at line 69 of file qdirmodel.cpp.

Constructors and Destructors

QDirModelPrivate()

QDirModelPrivate::QDirModelPrivate ( )

inline

Definition at line 86 of file qdirmodel.cpp.

        : resolveSymlinks(true),
          readOnly(true),
          lazyChildCount(false),
          allowAppendChild(true),
          iconProvider(&defaultProvider),
          shouldStat(true) // ### This is set to false by QFileDialog
    { }

Functions

_q_refresh()

void QDirModelPrivate::_q_refresh

(

)

Definition at line 1250 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    Q_Q(QDirModel);
    q->refresh(toBeRefreshed);
    toBeRefreshed = QModelIndex();
}

appendChild()

void QDirModelPrivate::appendChild	(	QDirModelPrivate::QDirNode *	parent,
		const QString &	path
	)		const

Definition at line 1374 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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();
}

children()

QVector< QDirModelPrivate::QDirNode > QDirModelPrivate::children	(	QDirNode *	parent,
		bool	stat
	)		const

Definition at line 1213 of file qdirmodel.cpp.

{
    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;
}

clear()

void QDirModelPrivate::clear ( QDirNode *  parent ) const

inline

Definition at line 166 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
     Q_ASSERT(parent);
     parent->children.clear();
     parent->populated = false;
}

entryInfoList()

QFileInfoList QDirModelPrivate::entryInfoList

(

const QString &

path

)

const

Definition at line 1295 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    const QDir dir(path);
    return dir.entryInfoList(nameFilters, filters, sort);
}

entryList()

QStringList QDirModelPrivate::entryList

(

const QString &

path

)

const

Definition at line 1301 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    const QDir dir(path);
    return dir.entryList(nameFilters, filters, sort);
}

init()

void QDirModelPrivate::init

(

)

Definition at line 1179 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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);
}

invalidate()

void QDirModelPrivate::invalidate

(

)

Definition at line 173 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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));
    }
}

name()

QString QDirModelPrivate::name

(

const QModelIndex &

index

)

const

Definition at line 1307 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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();
}

node() [1/2]

QDirModelPrivate::QDirNode * QDirModelPrivate::node	(	int	row,
		QDirNode *	parent
	)		const

Definition at line 1195 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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));
}

node() [2/2]

QDirModelPrivate::QDirNode * QDirModelPrivate::node ( const QModelIndex &  index ) const

inline

Definition at line 151 of file qdirmodel.cpp.

{
    QDirModelPrivate::QDirNode *n =
        static_cast<QDirModelPrivate::QDirNode*>(index.internalPointer());
    Q_ASSERT(n);
    return n;
}

populate()

void QDirModelPrivate::populate ( QDirNode *  parent ) const

inline

Definition at line 159 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    Q_ASSERT(parent);
    parent->children = children(parent, parent->stat);
    parent->populated = true;
}

resolvedInfo()

QFileInfo QDirModelPrivate::resolvedInfo ( QFileInfo  info )

static

Definition at line 1396 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
#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
}

restorePersistentIndexes()

void QDirModelPrivate::restorePersistentIndexes

(

)

Definition at line 1272 of file qdirmodel.cpp.

Referenced by appendChild(), and QDirModelPrivate().

{
    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;
}

savePersistentIndexes()

void QDirModelPrivate::savePersistentIndexes

(

)

Definition at line 1257 of file qdirmodel.cpp.

Referenced by appendChild(), and QDirModelPrivate().

{
    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);
    }
}

size()

QString QDirModelPrivate::size

(

const QModelIndex &

index

)

const

Definition at line 1326 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    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));
}

time()

QString QDirModelPrivate::time

(

const QModelIndex &

index

)

const

Definition at line 1364 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
#ifndef QT_NO_DATESTRING
    return node(index)->info.lastModified().toString(Qt::LocalDate);
#else
    Q_UNUSED(index);
    return QString();
#endif
}

type()

QString QDirModelPrivate::type

(

const QModelIndex &

index

)

const

Definition at line 1359 of file qdirmodel.cpp.

Referenced by QDirModelPrivate().

{
    return iconProvider->type(node(index)->info);
}

Properties

allowAppendChild

bool QDirModelPrivate::allowAppendChild

Definition at line 125 of file qdirmodel.cpp.

defaultProvider

QFileIconProvider QDirModelPrivate::defaultProvider

Definition at line 132 of file qdirmodel.cpp.

filters

QDir::Filters QDirModelPrivate::filters

Definition at line 127 of file qdirmodel.cpp.

iconProvider

QFileIconProvider* QDirModelPrivate::iconProvider

Definition at line 131 of file qdirmodel.cpp.

lazyChildCount

bool QDirModelPrivate::lazyChildCount

Definition at line 124 of file qdirmodel.cpp.

nameFilters

QStringList QDirModelPrivate::nameFilters

Definition at line 129 of file qdirmodel.cpp.

readOnly

bool QDirModelPrivate::readOnly

Definition at line 123 of file qdirmodel.cpp.

resolveSymlinks

bool QDirModelPrivate::resolveSymlinks

Definition at line 122 of file qdirmodel.cpp.

root

QDirNode QDirModelPrivate::root

mutable

Definition at line 121 of file qdirmodel.cpp.

Referenced by invalidate().

savedPersistent

QList<SavedPersistent> QDirModelPrivate::savedPersistent

Definition at line 140 of file qdirmodel.cpp.

shouldStat

bool QDirModelPrivate::shouldStat

Definition at line 143 of file qdirmodel.cpp.

Referenced by qt_setDirModelShouldNotStat().

sort

QDir::SortFlags QDirModelPrivate::sort

Definition at line 128 of file qdirmodel.cpp.

toBeRefreshed

QPersistentModelIndex QDirModelPrivate::toBeRefreshed

Definition at line 141 of file qdirmodel.cpp.

---

The documentation for this class was generated from the following file:

• /src/gui/itemviews/qdirmodel.cpp