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/*
YAGF - cuneiform and tesseract OCR graphical front-end
Copyright (C) 2009-2015 Andrei Borovsky <borovsky.andrei@gmail.com>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "djvu2pdf.h"
#include "utils.h"
#include "settings.h"
#include <QDir>
#include <QFileInfo>
#include <QFileInfoList>
#include <QStringList>
Djvu2PDF::Djvu2PDF(QObject *parent) :
QObject(parent)
{
pdfout = Settings::instance()->workingDir()+ QString("fromdjvu/");
QDir dir(pdfout);
if (!dir.exists())
dir.mkdir(pdfout);
connect(&process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(onError()));
connect(&process, SIGNAL(started()), this, SIGNAL(started()), Qt::QueuedConnection);
connect(&process, SIGNAL(finished(int)), this, SLOT(onFinished()), Qt::QueuedConnection);
}
Djvu2PDF::~Djvu2PDF()
{
cancel();
}
void Djvu2PDF::convert(const QString &fileName)
{
if (!findProgram("ddjvu")) {
emit error(trUtf8("The ddjvu utility from the DjVuLibre package has not been found.\nPlease make sure the package is installed."));
return;
}
QString output = pdfout + "out.pdf";
QStringList sl;
sl << "--format=pdf" << fileName << output;
process.start("ddjvu", sl);
}
QString Djvu2PDF::pdfName() const
{
return pdfout + "out.pdf";
}
void Djvu2PDF::onError()
{
emit error(trUtf8("Failed to convert djvu to pdf"));
}
void Djvu2PDF::cancel()
{
process.kill();
clearFiles();
}
void Djvu2PDF::onFinished()
{
QFileInfo fi(pdfout, "out.pdf");
if (!fi.exists())
onError();
else
emit finished();
}
void Djvu2PDF::clearFiles()
{
QDir dir;
dir.setPath(pdfout);
QFileInfoList fil;
fil = dir.entryInfoList();
foreach (QFileInfo fi, fil) {
dir.remove(fi.absoluteFilePath());
}
}
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