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Diffstat (limited to 'src/fileexporterexternal.cpp')
| -rw-r--r-- | src/fileexporterexternal.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/fileexporterexternal.cpp b/src/fileexporterexternal.cpp new file mode 100644 index 0000000..6b7e449 --- /dev/null +++ b/src/fileexporterexternal.cpp @@ -0,0 +1,179 @@ +/*************************************************************************** +* Copyright (C) 2004-2009 by Thomas Fischer * +* fischer@unix-ag.uni-kl.de * +* * +* 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" |