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path: root/src/backend/drivers/cswordbiblemoduleinfo.cpp
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/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2008 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/

#include "backend/drivers/cswordbiblemoduleinfo.h"

#include <boost/scoped_ptr.hpp>
#include <QFile>
#include "backend/managers/cswordbackend.h"
#include "backend/keys/cswordversekey.h"

// Sword includes:
#include <versekey.h>


CSwordBibleModuleInfo::CSwordBibleModuleInfo( sword::SWModule* module, CSwordBackend* const usedBackend )
        : CSwordModuleInfo(module, usedBackend),
        m_lowerBound(0),
        m_upperBound(0),
        m_bookList(0),
        m_cachedLocale("unknown"),
        m_hasOT(-1),
        m_hasNT(-1) {}

CSwordBibleModuleInfo::CSwordBibleModuleInfo( const CSwordBibleModuleInfo& m ) :
        CSwordModuleInfo(m),
        m_lowerBound(0),
        m_upperBound(0),
        m_bookList(0) {
    if (m.m_bookList) {
        m_bookList = new QStringList();
        *m_bookList = *m.m_bookList;
    }

    m_hasOT = m.m_hasOT;
    m_hasNT = m.m_hasNT;
    m_cachedLocale = m.m_cachedLocale;
}

CSwordModuleInfo* CSwordBibleModuleInfo::clone() {
    return new CSwordBibleModuleInfo(*this);
}

CSwordBibleModuleInfo::~CSwordBibleModuleInfo() {
    delete m_bookList;
}

void CSwordBibleModuleInfo::initBounds() {
    if (m_hasOT == -1) {
        m_hasOT = hasTestament(OldTestament);
    }

    if (m_hasNT == -1) {
        m_hasNT = hasTestament(NewTestament);
    }

    if (m_hasOT) {
        m_lowerBound.key("Genesis 1:1");
    }
    else {
        m_lowerBound.key("Matthew 1:1");
    }

    if (!m_hasNT) {
        m_upperBound.key("Malachi 4:6");
    }
    else {
        m_upperBound.key("Revelation of John 22:21");
    }
}


/** Returns the books available in this module */
QStringList* CSwordBibleModuleInfo::books() {
    if (m_cachedLocale != backend()->booknameLanguage()) { //if the locale has changed
        delete m_bookList;
        m_bookList = 0;
    }

    if (!m_bookList) {
        m_bookList = new QStringList();

        initBounds();
        int min = 0;
        int max = 1;

        //find out if we have ot and nt, only ot or only nt

        if (m_hasOT > 0 && m_hasNT > 0) { //both
            min = 0;
            max = 1;
        }
        else if (m_hasOT > 0 && !m_hasNT) { //only OT
            min = 0;
            max = 0;
        }
        else if (!m_hasOT && m_hasNT > 0) { //only NT
            min = 1;
            max = 1;
        }
        else if (!m_hasOT && !m_hasNT) { //somethings wrong here! - no OT and no NT
            qWarning("CSwordBibleModuleInfo (%s) no OT and not NT! Check your config!", module()->Name());
            min = 0;
            max = -1;
        }

        boost::scoped_ptr<sword::VerseKey> key((sword::VerseKey *)module()->CreateKey());
        (*key) = sword::TOP;

        for (key->Testament(min + 1); !key->Error() && (key->Testament() - 1) <= max; key->Book(key->Book() + 1)) {
            m_bookList->append( QString::fromUtf8(key->getBookName()) );
        }

        m_cachedLocale = backend()->booknameLanguage();
    }

    return m_bookList;
}

/** Returns the number of chapters for the given book. */
unsigned int CSwordBibleModuleInfo::chapterCount(const unsigned int book) {
    int result = 0;

    boost::scoped_ptr<sword::VerseKey> key((sword::VerseKey *)module()->CreateKey());
    (*key) = sword::TOP;

    // works for old and new versions
    key->Book(book);
    (*key) = sword::MAXCHAPTER;
    result = key->Chapter();

    return result;
}

unsigned int CSwordBibleModuleInfo::chapterCount(const QString& book) {
    return chapterCount( bookNumber(book) );
}

/** Returns the number of verses  for the given chapter. */

unsigned int CSwordBibleModuleInfo::verseCount( const unsigned int book, const unsigned int chapter ) {
    unsigned int result = 0;

    boost::scoped_ptr<sword::VerseKey> key((sword::VerseKey *)module()->CreateKey());
    (*key) = sword::TOP;

    // works for old and new versions
    key->Book(book);
    key->Chapter(chapter);
    (*key) = sword::MAXVERSE;
    result = key->Verse();

    return result;
}

unsigned int CSwordBibleModuleInfo::verseCount( const QString& book, const unsigned int chapter ) {
    return verseCount( bookNumber(book), chapter );
}

unsigned int CSwordBibleModuleInfo::bookNumber(const QString &book) {
    unsigned int bookNumber = 0;

    //find out if we have ot and nt, only ot or only nt
    initBounds();

    boost::scoped_ptr<sword::VerseKey> key((sword::VerseKey *)module()->CreateKey());
    (*key) = sword::TOP;

    key->setBookName(book.toUtf8().constData());

    bookNumber = ((key->Testament() > 1) ? key->BMAX[0] : 0) + key->Book();

    return bookNumber;
}

/** Returns true if his module has the text of desired type of testament */
bool CSwordBibleModuleInfo::hasTestament( CSwordBibleModuleInfo::Testament type ) {
    if (m_hasOT == -1 || m_hasNT == -1) {
        const bool oldStatus = module()->getSkipConsecutiveLinks();
        module()->setSkipConsecutiveLinks(true);

        *module() = sword::TOP; //position to first entry
        sword::VerseKey key( module()->KeyText() );

        if (key.Testament() == 1) { // OT && NT
            m_hasOT = 1;
        }
        else if (key.Testament() == 2) { //no OT
            m_hasOT = 0;
        }

        *module() = sword::BOTTOM;
        key = module()->KeyText();

        if (key.Testament() == 1) { // only OT, no NT
            m_hasNT = 0;
        }
        else if (key.Testament() == 2) { //has NT
            m_hasNT = 1;
        }

        module()->setSkipConsecutiveLinks(oldStatus);
    }

    switch (type) {

        case OldTestament:
            return m_hasOT > 0;

        case NewTestament:
            return m_hasNT > 0;

        default:
            return false;
    }
}