qsavefile.h

Go to the documentation of this file.

// Copyright (C) 2012 David Faure <faure@kde.org>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:header-decls-only
 
#ifndef QSAVEFILE_H
#define QSAVEFILE_H
 
#include <QtCore/qglobal.h>
 
#if QT_CONFIG(temporaryfile)
 
#include <QtCore/qfiledevice.h>
#include <QtCore/qstring.h>
 
#ifdef open
#error qsavefile.h must be included before any header file that defines open
#endif
 
QT_BEGIN_NAMESPACE
 
class QAbstractFileEngine;
class QSaveFilePrivate;
 
class Q_CORE_EXPORT QSaveFile : public QFileDevice
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QSaveFile)
 
public:
#if QT_CORE_REMOVED_SINCE(6, 11)
    explicit QSaveFile(const QString &name);
#endif
    explicit QSaveFile(QObject *parent = nullptr);
    explicit QSaveFile(const QString &name, QObject *parent = nullptr);
    ~QSaveFile();
 
    QString fileName() const override;
    void setFileName(const QString &name);
 
    Permissions permissions() const override;
    bool setPermissions(Permissions permissionSpec) override;
 
    QFILE_MAYBE_NODISCARD bool open(OpenMode flags) override;
    bool commit();
 
    void cancelWriting();
 
    void setDirectWriteFallback(bool enabled);
    bool directWriteFallback() const;
 
#if QT_CONFIG(cxx17_filesystem) || defined(Q_QDOC)
    Q_WEAK_OVERLOAD QSaveFile(const std::filesystem::path &path, QObject *parent = nullptr)
        : QSaveFile(QtPrivate::fromFilesystemPath(path), parent)
    {
    }
 
    std::filesystem::path filesystemFileName() const
    { return QtPrivate::toFilesystemPath(fileName()); }
    Q_WEAK_OVERLOAD void setFileName(const std::filesystem::path &name)
    {
        setFileName(QtPrivate::fromFilesystemPath(name));
    }
#endif // QT_CONFIG(cxx17_filesystem)
 
protected:
    qint64 writeData(const char *data, qint64 len) override;
 
private:
    void close() override;
#if !QT_CONFIG(translation)
    static QString tr(const char *string) { return QString::fromLatin1(string); }
#endif
 
private:
    Q_DISABLE_COPY(QSaveFile)
    friend class QFilePrivate;
};
 
QT_END_NAMESPACE
 
#endif // QT_CONFIG(temporaryfile)
 
#endif // QSAVEFILE_H