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/***************************************************************************
* Copyright (C) 2004-2009 by Thomas Fischer *
* [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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <qprocess.h>
#include <qwaitcondition.h>
#include <qapplication.h>
#include <qbuffer.h>
#include <fileexporterbibtex.h>
#include <settings.h>
#include "fileexporterexternal.h"
namespace BibTeX
{
FileExporterExternal::FileExporterExternal( Exporter exporter, File::FileFormat fileformat )
: FileExporter(), writeTo( NULL ), m_exporter( exporter ), m_fileformat( fileformat )
{
wc = new QWaitCondition();
}
FileExporterExternal::~FileExporterExternal()
{
delete wc;
}
bool FileExporterExternal::save( QIODevice* iodevice, const File* bibtexfile, QStringList *errorLog )
{
m_mutex.lock();
QBuffer buffer;
buffer.open( IO_WriteOnly );
FileExporter * bibtexExporter = new FileExporterBibTeX();
bool result = bibtexExporter->save( &buffer, bibtexfile, errorLog );
buffer.close();
delete bibtexExporter;
if ( result )
result = generateOutput( buffer, iodevice );
m_mutex.unlock();
return result;
}
bool FileExporterExternal::save( QIODevice* iodevice, const Element* element, QStringList *errorLog )
{
m_mutex.lock();
QBuffer buffer;
buffer.open( IO_WriteOnly );
FileExporter * bibtexExporter = new FileExporterBibTeX();
bool result = bibtexExporter->save( &buffer, element, errorLog );
buffer.close();
delete bibtexExporter;
if ( result )
result = generateOutput( buffer, iodevice );
m_mutex.unlock();
return result;
}
bool FileExporterExternal::generateOutput( QBuffer &input, QIODevice *output )
{
bool result = FALSE;
QString commandLine;
switch ( m_fileformat )
{
case File::formatHTML:
switch ( m_exporter )
{
case exporterBibTeX2HTML:
commandLine = "bibtex2html -s plain -a";
break;
case exporterBib2XHTML:
commandLine = "bib2xhtml -s plain -u";
break;
case exporterBibConv:
commandLine = "bibconv -informat=bibtex -outformat=html";
break;
default:
return FALSE;
}
break;
default:
return FALSE;
}
QStringList args = QStringList::split( ' ', commandLine );
writeTo = new QTextStream( output );
writeTo->setEncoding( QTextStream::UnicodeUTF8 );
QApplication::setOverrideCursor( Qt::waitCursor );
process = new QProcess( args );
connect( process, SIGNAL( processExited() ), this, SLOT( slotProcessExited() ) );
connect( process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadProcessOutput() ) );
connect( process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadProcessOutput() ) );
connect( process, SIGNAL( wroteToStdin() ), this, SLOT( slotWroteToStdin() ) );
if ( process->start() )
{
while ( !process->isRunning() )
{
wc->wait( 250 );
qApp->processEvents();
}
qApp->processEvents();
input.open( IO_ReadOnly );
QByteArray buf = input.buffer();
// qDebug( "buf.size=%i", buf.size() );
process->writeToStdin( buf );
input.close();
qApp->processEvents();
while ( process->isRunning() )
{
wc->wait( 250 );
qApp->processEvents();
}
result = process->normalExit();
}
disconnect( process, SIGNAL( wroteToStdin() ), this, SLOT( slotWroteToStdin() ) );
disconnect( process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadProcessOutput() ) );
disconnect( process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadProcessOutput() ) );
disconnect( process, SIGNAL( processExited() ), this, SLOT( slotProcessExited() ) );
delete( process );
process = NULL;
delete writeTo;
writeTo = NULL;
QApplication::restoreOverrideCursor();
return result;
}
void FileExporterExternal::slotProcessExited()
{
wc->wakeAll();
}
void FileExporterExternal::slotReadProcessOutput()
{
if ( writeTo != NULL )
while ( process->canReadLineStdout() )
{
QString line = process->readLineStdout();
// qDebug( "line=%s", line.latin1() );
( *writeTo ) << line.latin1() << endl;
}
// while ( process->canReadLineStderr() )
// {
// QString line = process->readLineStderr();
// qDebug( "stderr=%s", line.latin1() );
// }
}
void FileExporterExternal::slotWroteToStdin()
{
process->closeStdin();
}
}
#include "fileexporterexternal.moc"
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