qsavefile.h

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// 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
 
#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
{
#ifndef QT_NO_QOBJECT
    Q_OBJECT
#endif
    Q_DECLARE_PRIVATE(QSaveFile)
 
public:
 
    explicit QSaveFile(const QString &name);
#ifndef QT_NO_QOBJECT
    explicit QSaveFile(QObject *parent = nullptr);
    explicit QSaveFile(const QString &name, QObject *parent);
#endif
    ~QSaveFile();
 
    QString fileName() const override;
    void setFileName(const QString &name);
 
    QFILE_MAYBE_NODISCARD bool open(OpenMode flags) override;
    bool commit();
 
    void cancelWriting();
 
    void setDirectWriteFallback(bool enabled);
    bool directWriteFallback() const;
 
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