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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