QPersistentModelIndexData Class Reference

#include <qabstractitemmodel_p.h>

Public Functions
	QPersistentModelIndexData ()
	QPersistentModelIndexData (const QModelIndex &idx)

Static Public Functions
static QPersistentModelIndexData *	create (const QModelIndex &index)
static void	destroy (QPersistentModelIndexData *data)

Public Variables
QModelIndex	index
const QAbstractItemModel *	model
QAtomicInt	ref

Detailed Description

Definition at line 64 of file qabstractitemmodel_p.h.

Constructors and Destructors

QPersistentModelIndexData() [1/2]

QPersistentModelIndexData::QPersistentModelIndexData ( )

inline

Definition at line 67 of file qabstractitemmodel_p.h.

Referenced by create().

: model(0) {}

QPersistentModelIndexData() [2/2]

QPersistentModelIndexData::QPersistentModelIndexData ( const QModelIndex &  idx )

inline

Definition at line 68 of file qabstractitemmodel_p.h.

: index(idx), model(idx.model()) {}

Functions

create()

QPersistentModelIndexData * QPersistentModelIndexData::create ( const QModelIndex &  index )

static

Definition at line 57 of file qabstractitemmodel.cpp.

Referenced by QPersistentModelIndex::operator=(), and QPersistentModelIndex::QPersistentModelIndex().

{
    Q_ASSERT(index.isValid()); // we will _never_ insert an invalid index in the list
    QPersistentModelIndexData *d = 0;
    QAbstractItemModel *model = const_cast<QAbstractItemModel *>(index.model());
    QHash<QModelIndex, QPersistentModelIndexData *> &indexes = model->d_func()->persistent.indexes;
    const QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = indexes.find(index);
    if (it != indexes.end()) {
        d = (*it);
    } else {
        d = new QPersistentModelIndexData(index);
        indexes.insert(index, d);
    }
    Q_ASSERT(d);
    return d;
}

destroy()

void QPersistentModelIndexData::destroy ( QPersistentModelIndexData *  data )

static

Definition at line 74 of file qabstractitemmodel.cpp.

Referenced by QPersistentModelIndex::operator=(), and QPersistentModelIndex::~QPersistentModelIndex().

{
    Q_ASSERT(data);
    Q_ASSERT(data->ref == 0);
    QAbstractItemModel *model = const_cast<QAbstractItemModel *>(data->model);
    // a valid persistent model index with a null model pointer can only happen if the model was destroyed
    if (model) {
        QAbstractItemModelPrivate *p = model->d_func();
        Q_ASSERT(p);
        p->removePersistentIndexData(data);
    }
    delete data;
}

Properties

index

QModelIndex QPersistentModelIndexData::index

Definition at line 69 of file qabstractitemmodel_p.h.

Referenced by QAbstractItemModel::changePersistentIndex(), QAbstractItemModel::changePersistentIndexList(), QPersistentModelIndex::child(), QPersistentModelIndex::column(), QAbstractItemModelPrivate::columnsAboutToBeInserted(), QAbstractItemModelPrivate::columnsAboutToBeRemoved(), QAbstractItemModelPrivate::columnsInserted(), QAbstractItemModelPrivate::columnsRemoved(), QPersistentModelIndex::data(), QPersistentModelIndex::flags(), QPersistentModelIndex::internalId(), QPersistentModelIndex::internalPointer(), QAbstractItemModelPrivate::invalidatePersistentIndex(), QAbstractItemModelPrivate::invalidatePersistentIndexes(), QPersistentModelIndex::isValid(), QAbstractItemModelPrivate::itemsAboutToBeMoved(), QPersistentModelIndex::model(), QAbstractItemModelPrivate::movePersistentIndexes(), QPersistentModelIndex::operator const QModelIndex &(), QPersistentModelIndex::operator!=(), QPersistentModelIndex::operator<(), operator<<(), QPersistentModelIndex::operator==(), QPersistentModelIndex::parent(), QAbstractItemModel::persistentIndexList(), QAbstractItemModelPrivate::removePersistentIndexData(), QDirModelPrivate::restorePersistentIndexes(), QPersistentModelIndex::row(), QAbstractItemModelPrivate::rowsAboutToBeInserted(), QAbstractItemModelPrivate::rowsAboutToBeRemoved(), QAbstractItemModelPrivate::rowsInserted(), QAbstractItemModelPrivate::rowsRemoved(), QDirModelPrivate::savePersistentIndexes(), QPersistentModelIndex::sibling(), and QSortFilterProxyModelPrivate::store_persistent_indexes().

model

const QAbstractItemModel* QPersistentModelIndexData::model

Definition at line 71 of file qabstractitemmodel_p.h.

Referenced by QAbstractItemModel::changePersistentIndex(), QAbstractItemModel::changePersistentIndexList(), QAbstractItemModelPrivate::columnsRemoved(), create(), destroy(), QAbstractItemModelPrivate::invalidatePersistentIndex(), QAbstractItemModelPrivate::invalidatePersistentIndexes(), QDirModelPrivate::restorePersistentIndexes(), and QAbstractItemModelPrivate::rowsRemoved().

ref

QAtomicInt QPersistentModelIndexData::ref

Definition at line 70 of file qabstractitemmodel_p.h.

Referenced by destroy(), QPersistentModelIndex::operator=(), QPersistentModelIndex::QPersistentModelIndex(), and QPersistentModelIndex::~QPersistentModelIndex().

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

• /src/corelib/kernel/qabstractitemmodel_p.h
• /src/corelib/kernel/qabstractitemmodel.cpp