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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.
- KoStoreDevice( KoStore * store ) : m_store(store) {
- setType( IO_Direct );
- }
- ~KoStoreDevice() {}
-
- bool open( int m ) {
- if ( m & IO_ReadOnly )
- return ( m_store->mode() == KoStore::Read );
- if ( m & IO_WriteOnly )
- return ( m_store->mode() == KoStore::Write );
- return false;
- }
- void close() { }
- void flush() { }
-
- Offset size() const {
- if ( m_store->mode() == KoStore::Read )
- return m_store->size();
- else
- return 0xffffffff;
- }
-
- virtual Q_LONG readBlock( char *data, Q_ULONG maxlen ) { return m_store->read(data, maxlen); }
- virtual Q_LONG writeBlock( const char *data, Q_ULONG len ) { return m_store->write( data, len ); }
- // Not virtual, only to uncover shadow
- Q_LONG writeBlock( const QByteArray& data ) { return QIODevice::writeBlock( data ); }
-
- 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
-
- // See QIODevice
- virtual bool at( Offset pos ) { return m_store->at(pos); }
- virtual Offset at() const { return m_store->at(); }
- virtual bool atEnd() const { return m_store->atEnd(); }
-
- protected:
- KoStore * m_store;
- };
-
- #endif
-