gpgme/lang/qt/src/dataprovider.h
Andre Heinecke 1d31420650
qt,cpp: Consistently use nullptr and override
* lang/cpp/src/Makefile.am, lang/qt/src/Makefile.am (AM_CPPFLAGS):
Add suggest-override and zero-as-null-pointer-constant warnings.

* lang/cpp/src/*, lang/qt/src/*: Consistenly use nullptr and override.

--
This was especially important for the headers so that downstream
users of GpgME++ or QGpgME do not get flooded by warnings if
they have these warnings enabled.

It also improves compiler errors/warnings in case of accidental
mistakes.
2018-12-03 12:25:00 +01:00

97 lines
2.7 KiB
C++

/* dataprovider.h
Copyright (C) 2004 Klarälvdalens Datakonsult AB
Copyright (c) 2016 by Bundesamt für Sicherheit in der Informationstechnik
Software engineering by Intevation GmbH
This file is part of QGPGME.
QGPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
QGPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with QGPGME; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
// -*- c++ -*-
#ifndef __QGPGME_DATAPROVIDER_H__
#define __QGPGME_DATAPROVIDER_H__
#include "qgpgme_export.h"
#include <interfaces/dataprovider.h>
#include <memory>
#include <QtCore/QByteArray>
class QIODevice;
namespace QGpgME
{
class QGPGME_EXPORT QByteArrayDataProvider : public GpgME::DataProvider
{
public:
QByteArrayDataProvider();
explicit QByteArrayDataProvider(const QByteArray &initialData);
~QByteArrayDataProvider();
const QByteArray &data() const
{
return mArray;
}
private:
// these shall only be accessed through the dataprovider
// interface, where they're public:
bool isSupported(Operation) const override
{
return true;
}
ssize_t read(void *buffer, size_t bufSize) override;
ssize_t write(const void *buffer, size_t bufSize) override;
off_t seek(off_t offset, int whence) override;
void release() override;
private:
QByteArray mArray;
off_t mOff;
};
class QGPGME_EXPORT QIODeviceDataProvider : public GpgME::DataProvider
{
public:
explicit QIODeviceDataProvider(const std::shared_ptr<QIODevice> &initialData);
~QIODeviceDataProvider();
const std::shared_ptr<QIODevice> &ioDevice() const
{
return mIO;
}
private:
// these shall only be accessed through the dataprovider
// interface, where they're public:
bool isSupported(Operation) const override;
ssize_t read(void *buffer, size_t bufSize) override;
ssize_t write(const void *buffer, size_t bufSize) override;
off_t seek(off_t offset, int whence) override;
void release() override;
private:
const std::shared_ptr<QIODevice> mIO;
bool mErrorOccurred : 1;
bool mHaveQProcess : 1;
};
} // namespace QGpgME
#endif