include/QtCore/qsavefile.h

0001 // Copyright (C) 2012 David Faure <faure@kde.org>
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QSAVEFILE_H
0005 #define QSAVEFILE_H
0006
0007 #include <QtCore/qglobal.h>
0008
0009 #ifndef QT_NO_TEMPORARYFILE
0010
0011 #include <QtCore/qfiledevice.h>
0012 #include <QtCore/qstring.h>
0013
0014 #ifdef open
0015 #error qsavefile.h must be included before any header file that defines open
0016 #endif
0017
0018 QT_BEGIN_NAMESPACE
0019
0020 class QAbstractFileEngine;
0021 class QSaveFilePrivate;
0022
0023 class Q_CORE_EXPORT QSaveFile : public QFileDevice
0024 {
0025 #ifndef QT_NO_QOBJECT
0026     Q_OBJECT
0027 #endif
0028     Q_DECLARE_PRIVATE(QSaveFile)
0029
0030 public:
0031
0032     explicit QSaveFile(const QString &name);
0033 #ifndef QT_NO_QOBJECT
0034     explicit QSaveFile(QObject *parent = nullptr);
0035     explicit QSaveFile(const QString &name, QObject *parent);
0036 #endif
0037     ~QSaveFile();
0038
0039     QString fileName() const override;
0040     void setFileName(const QString &name);
0041
0042     bool open(OpenMode flags) override;
0043     bool commit();
0044
0045     void cancelWriting();
0046
0047     void setDirectWriteFallback(bool enabled);
0048     bool directWriteFallback() const;
0049
0050 protected:
0051     qint64 writeData(const char *data, qint64 len) override;
0052
0053 private:
0054     void close() override;
0055 #if !QT_CONFIG(translation)
0056     static QString tr(const char *string) { return QString::fromLatin1(string); }
0057 #endif
0058
0059 private:
0060     Q_DISABLE_COPY(QSaveFile)
0061 };
0062
0063 QT_END_NAMESPACE
0064
0065 #endif // QT_NO_TEMPORARYFILE
0066
0067 #endif // QSAVEFILE_H