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zcom.h

/******************************************************************************
 *  zcom.h   - code for class 'zCom'- a module that reads compressed text
 *                              files: ot and nt using indexs ??.vss
 *
 * $Id: zcom_8h-source.html,v 1.9 2002/10/31 11:30:16 joachim Exp $
 *
 * Copyright 1998 CrossWire Bible Society (http://www.crosswire.org)
 *      CrossWire Bible Society
 *      P. O. Box 2528
 *      Tempe, AZ  85280-2528
 *
 * 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 version 2.
 *
 * 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.
 *
 */

#ifndef ZCOM_H
#define ZCOM_H

#include <rawverse.h>
#include <swcom.h>
#include <swcomprs.h>

#include <defs.h>

SWORD_NAMESPACE_START

class SWDLLEXPORT zCom:public zVerse, public SWCom {

        VerseKey *lastWriteKey;
        bool sameBlock(VerseKey * lastWriteKey, VerseKey * key);
        int blockType;
        VerseKey &getVerseKey();


public:

        zCom(const char *ipath, const char *iname = 0, const char *idesc = 0,
                        int blockType = CHAPTERBLOCKS, SWCompress * icomp = 0,
                        SWDisplay * idisp = 0, SWTextEncoding encoding = ENC_UNKNOWN,
                        SWTextDirection dir = DIRECTION_LTR,
                        SWTextMarkup markup = FMT_UNKNOWN, const char* ilang = 0);
        virtual ~zCom();
        virtual char *getRawEntry();
     virtual void increment(int steps = 1);
     virtual void decrement(int steps = 1) { increment(-steps); }

        // write interface ----------------------------
        virtual bool isWritable() {
                return ((idxfp[0]->getFd() > 0) && ((idxfp[0]->mode & O_RDWR) == O_RDWR));
        }
        static char createModule(const char *path, int blockBound) {
                return zVerse::createModule(path, blockBound);
        }
        virtual void setEntry(const char *inbuf, long len = -1);        // Modify current module entry
        virtual void linkEntry(const SWKey * linkKey);  // Link current module entry to other module entry
        virtual void deleteEntry();     // Delete current module entry
        // end write interface ------------------------

        virtual void rawZFilter(char *buf, long size, char direction = 0) { rawFilter(buf, size, (SWKey *)(long)direction); }// hack, use key as direction for enciphering

        // swcacher interface ----------------------
        virtual void flush() { flushCache(); }
        // end swcacher interface ----------------------

        SWMODULE_OPERATORS

};

SWORD_NAMESPACE_END

#endif

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