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/* This file is part of the KDE project
Copyright (C) 2000 David Faure <faure@kde.org>
This library 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.
This library 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 this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef koStoreDevice_h
#define koStoreDevice_h
#include <KoStore.h>
/**
* This class implements a QIODevice around KoStore, so that
* it can be used to create a QDomDocument from it, to be written or read
* using QDataStream or to be written using QTextStream
*/
class KoStoreDevice : public QIODevice
{
public:
/// Note: KoStore::open() should be called before calling this.
explicit KoStoreDevice(KoStore * store) : m_store(store) {
// koffice-1.x behavior compat: a KoStoreDevice is automatically open
setOpenMode(m_store->mode() == KoStore::Read ? QIODevice::ReadOnly : QIODevice::WriteOnly);
}
~KoStoreDevice() {}
virtual bool isSequential() const {
return true;
}
virtual bool open(OpenMode m) {
setOpenMode(m);
if (m & QIODevice::ReadOnly)
return (m_store->mode() == KoStore::Read);
if (m & QIODevice::WriteOnly)
return (m_store->mode() == KoStore::Write);
return false;
}
virtual void close() {}
qint64 size() const {
if (m_store->mode() == KoStore::Read)
return m_store->size();
else
return 0xffffffff;
}
#if 0
int getch() {
char c[2];
if (m_store->read(c, 1) == -1)
return -1;
else
return c[0];
}
int putch(int _c) {
char c[2];
c[0] = _c;
c[1] = 0;
if (m_store->write(c, 1) == 1)
return _c;
else
return -1;
}
int ungetch(int) {
return -1;
} // unsupported
#endif
// See QIODevice
virtual qint64 pos() const {
return m_store->pos();
}
virtual bool seek(qint64 pos) {
return m_store->seek(pos);
}
virtual bool atEnd() const {
return m_store->atEnd();
}
protected:
KoStore * m_store;
virtual qint64 readData(char *data, qint64 maxlen) {
return m_store->read(data, maxlen);
}
virtual qint64 writeData(const char *data, qint64 len) {
return m_store->write(data, len);
}
};
#endif
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