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-rw-r--r--fbreader/src/formats/util/MergedStream.h45
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diff --git a/fbreader/src/formats/util/MergedStream.h b/fbreader/src/formats/util/MergedStream.h
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+/*
+ * Copyright (C) 2008-2012 Geometer Plus <[email protected]>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __MERGEDSTREAM_H__
+#define __MERGEDSTREAM_H__
+
+#include <shared_ptr.h>
+#include <ZLInputStream.h>
+
+class MergedStream : public ZLInputStream {
+
+protected:
+ virtual shared_ptr<ZLInputStream> nextStream() = 0;
+ virtual void resetToStart() = 0;
+
+private:
+ bool open();
+ std::size_t read(char *buffer, std::size_t maxSize);
+ void close();
+ void seek(int offset, bool absoluteOffset);
+ std::size_t offset() const;
+ std::size_t sizeOfOpened();
+
+private:
+ shared_ptr<ZLInputStream> myCurrentStream;
+ std::size_t myOffset;
+};
+
+#endif /* __MERGEDSTREAM_H__ */