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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/cswordlexiconmoduleinfo.h"
#include <algorithm>
#include <QFile>
#include <QDataStream>
#include <QTextCodec>
#include <QDebug>
#include "util/directory.h"
// Sword includes:
#include <swmodule.h>
//Change it once the format changed to make all systems rebuild their caches
#define CACHE_FORMAT "3"
CSwordLexiconModuleInfo::CSwordLexiconModuleInfo( sword::SWModule* module, CSwordBackend* const backend ) : CSwordModuleInfo(module, backend) {
m_entryList = 0;
}
CSwordLexiconModuleInfo::CSwordLexiconModuleInfo( const CSwordLexiconModuleInfo& m ) : CSwordModuleInfo(m) {
delete m_entryList;
m_entryList = 0;
if (m.m_entryList) {
m_entryList = new QStringList();
*m_entryList = *m.m_entryList;//copy list items
}
}
CSwordLexiconModuleInfo::~CSwordLexiconModuleInfo() {
delete m_entryList;
m_entryList = 0;
}
/** Returns the entries of the module. */
QStringList* CSwordLexiconModuleInfo::entries() {
namespace DU = util::directory;
if (!module()) {
return 0;
}
if (m_entryList) return m_entryList;
m_entryList = new QStringList();
//Check for buggy modules! They will not be loaded any more.
if ( name() == QString("ZhEnglish")) {
qWarning() << "Module ZhEnglish is buggy and will not be loaded.";
return m_entryList;
}
if ( name() == QString("EReo_en")) {
qWarning() << "Module EReo_en is buggy and will not be loaded.";
return m_entryList;
}
QString dir(DU::getUserCacheDir().absolutePath());
QFile f1( QString(dir).append("/").append(name()));
/*
* Try the module's cache
*/
if ( f1.open( QIODevice::ReadOnly ) ) {
QDataStream s( &f1 );
QString ModuleVersion, CacheVersion, QDataStreamVersion;
s >> ModuleVersion;
s >> CacheVersion;
s >> QDataStreamVersion;
qDebug() << "Lexicon cache metadata"
<< "Name" << name()
<< "ModuleVersion" << ModuleVersion
<< "CacheVersion" << CacheVersion
<< "QDataStreamVersion" << QDataStreamVersion;
// Check if cache is valid
if (ModuleVersion == config(CSwordModuleInfo::ModuleVersion)
&& CacheVersion == CACHE_FORMAT
&& QDataStreamVersion == QString::number(s.version())) {
s >> *m_entryList;
f1.close();
qDebug() << "Read" << m_entryList->count() << "entries from lexicon cache for module" << name();
return m_entryList;
}
f1.close();
}
/*
* Ok, no cache or invalid.
*/
qDebug() << "Read all entries of lexicon" << name();
sword::SWModule* my_module = module();
my_module->setSkipConsecutiveLinks(true);
(*my_module) = sword::TOP;
snap(); //snap to top entry
do {
if ( isUnicode() ) {
m_entryList->append(QString::fromUtf8(my_module->KeyText()));
}
else {
//for latin1 modules use fromLatin1 because of speed
QTextCodec* codec = QTextCodec::codecForName("Windows-1252");
m_entryList->append(codec->toUnicode(my_module->KeyText()));
}
(*my_module)++;
}
while ( !my_module->Error() );
(*my_module) = sword::TOP; //back to the first entry
my_module->setSkipConsecutiveLinks(false);
if (m_entryList->count()) {
m_entryList->first().simplified();
if (m_entryList->first().trimmed().isEmpty()) {
m_entryList->erase( m_entryList->begin() );
}
}
qDebug() << "Writing cache file for lexicon module" << name();
if (m_entryList->count()) {
//create cache
QString dir(DU::getUserCacheDir().absolutePath());
QFile f2( QString(dir).append("/").append(name()) );
if (f2.open( QIODevice::WriteOnly )) {
QDataStream s( &f2 );
s << config(CSwordModuleInfo::ModuleVersion) //store module version
<< QString(CACHE_FORMAT) //store BT version -- format may change
<< QString::number(s.version()) //store QDataStream version -- format may change
<< *m_entryList;
f2.close();
}
}
return m_entryList;
}
/** Jumps to the closest entry in the module. */
bool CSwordLexiconModuleInfo::snap() {
if (module()->getRawEntry()) { // Snap to the current entry
return true;
}
return false;
}
/** No descriptions */
CSwordModuleInfo* CSwordLexiconModuleInfo::clone() {
return new CSwordLexiconModuleInfo(*this);
}
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