kpmcore/src/core/copytargetfile.cpp

54 lines
2.0 KiB
C++

/*************************************************************************
* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>.*
*************************************************************************/
#include "core/copytargetfile.h"
/** Constructs a file to write to.
@param filename name of the file to write to
*/
CopyTargetFile::CopyTargetFile(const QString& filename) :
CopyTarget(),
m_File(filename)
{
}
/** Opens the file for writing.
@return true on success
*/
bool CopyTargetFile::open()
{
return file().open(QIODevice::WriteOnly | QIODevice::Truncate);
}
/** Writes the given number of bytes from the given buffer to the file.
@param buffer the data to write
@param writeOffset where in the file to start writing
@return true on success
*/
bool CopyTargetFile::writeData(QByteArray& buffer, qint64 writeOffset)
{
if (!file().seek(writeOffset))
return false;
bool rval = file().write(buffer) == buffer.size();
if (rval)
setBytesWritten(bytesWritten() + buffer.size());
return rval;
}