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Break out ConvertWorker::pdfToRaster

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This commit is contained in:
Anton Thomasson 2021-06-12 10:34:46 +02:00
parent 07a1e35f58
commit 8c18418f26
2 changed files with 99 additions and 79 deletions
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172
src/convertworker.cpp
View file

@ -603,85 +603,10 @@ try {
else
{
QProcess* pdftoppm = new QProcess(this);
pdftoppm->setProgram("pdftoppm");
QStringList Pdf2PpmArgs = {"-rx", QString::number(HwResX), "-ry", QString::number(HwResY)};
Pdf2PpmArgs << QStringList {"-f", QString::number(PageRangeLow), "-l", QString::number(PageRangeHigh)};
if(Colors == 1)
{
Pdf2PpmArgs.append("-gray");
}
qDebug() << "pdf2ppm args is " << Pdf2PpmArgs;
pdftoppm->setArguments(Pdf2PpmArgs);
QProcess* ppm2pwg = new QProcess(this);
// Yo dawg, I heard you like programs...
ppm2pwg->setProgram("harbour-seaprint");
ppm2pwg->setArguments({"ppm2pwg"});
bool urf = targetFormat == Mimer::URF;
QStringList env;
ppm2PwgEnv(env, urf, Quality, PaperSize, HwResX, HwResY, TwoSided, Tumble, true, pages);
qDebug() << "ppm2pwg env is " << env;
ppm2pwg->setEnvironment(env);
pdftoppm->setStandardInputFile(tmpPdfFile.fileName());
pdftoppm->setStandardOutputProcess(ppm2pwg);
ppm2pwg->setStandardOutputFile(tempfile->fileName(), QIODevice::Append);
connect(pdftoppm, SIGNAL(finished(int, QProcess::ExitStatus)), pdftoppm, SLOT(deleteLater()));
connect(ppm2pwg, SIGNAL(finished(int, QProcess::ExitStatus)), ppm2pwg, SLOT(deleteLater()));
qDebug() << "All connected";
pdftoppm->start();
ppm2pwg->start();
qDebug() << "Starting";
if(!pdftoppm->waitForStarted())
{
qDebug() << "pdftoppm died";
throw ConvertFailedException();
}
if(!ppm2pwg->waitForStarted())
{
qDebug() << "ppm2pwg died";
throw ConvertFailedException();
}
qDebug() << "All started";
bool ppm2pwgSuccess = false;
for(;;)
{
if(ppm2pwg->waitForFinished(250))
{
ppm2pwgSuccess = true;
break;
}
else
{
QList<QByteArray> ppm2pwgOutput = ppm2pwg->readAllStandardError().split('\n');
for(QList<QByteArray>::iterator it = ppm2pwgOutput.begin(); it != ppm2pwgOutput.end(); it++)
{
if(it->startsWith("Page"))
{
QList<QByteArray> ppm2pwgTokens = it->split(' ');
emit progress(ppm2pwgTokens.last().toInt()-1, pages);
}
}
}
}
if(!ppm2pwgSuccess)
{
qDebug() << "ppm2pwg failed";
throw ConvertFailedException();
}
pdfToRaster(targetFormat, Colors, Quality, PaperSize,
HwResX, HwResY, TwoSided, Tumble,
PageRangeLow, PageRangeHigh, pages,
tmpPdfFile, tempfile);
}
@ -697,3 +622,92 @@ catch(const ConvertFailedException& e)
emit failed(e.what() == QString("") ? tr("Conversion error") : e.what());
}
}
void ConvertWorker::pdfToRaster(QString targetFormat, quint32 Colors, quint32 Quality, QString PaperSize,
quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble,
quint32 PageRangeLow, quint32 PageRangeHigh, quint32 pages,
QTemporaryFile& tmpPdfFile, QTemporaryFile* tempfile)
{
QProcess* pdftoppm = new QProcess(this);
pdftoppm->setProgram("pdftoppm");
QStringList Pdf2PpmArgs = {"-rx", QString::number(HwResX), "-ry", QString::number(HwResY)};
if (PageRangeLow != 0 && PageRangeHigh !=0)
{
Pdf2PpmArgs << QStringList {"-f", QString::number(PageRangeLow), "-l", QString::number(PageRangeHigh)};
}
if(Colors == 1)
{
Pdf2PpmArgs.append("-gray");
}
qDebug() << "pdf2ppm args is " << Pdf2PpmArgs;
pdftoppm->setArguments(Pdf2PpmArgs);
QProcess* ppm2pwg = new QProcess(this);
// Yo dawg, I heard you like programs...
ppm2pwg->setProgram("harbour-seaprint");
ppm2pwg->setArguments({"ppm2pwg"});
bool urf = targetFormat == Mimer::URF;
QStringList env;
ppm2PwgEnv(env, urf, Quality, PaperSize, HwResX, HwResY, TwoSided, Tumble, true, pages);
qDebug() << "ppm2pwg env is " << env;
ppm2pwg->setEnvironment(env);
pdftoppm->setStandardInputFile(tmpPdfFile.fileName());
pdftoppm->setStandardOutputProcess(ppm2pwg);
ppm2pwg->setStandardOutputFile(tempfile->fileName(), QIODevice::Append);
connect(pdftoppm, SIGNAL(finished(int, QProcess::ExitStatus)), pdftoppm, SLOT(deleteLater()));
connect(ppm2pwg, SIGNAL(finished(int, QProcess::ExitStatus)), ppm2pwg, SLOT(deleteLater()));
qDebug() << "All connected";
pdftoppm->start();
ppm2pwg->start();
qDebug() << "Starting";
if(!pdftoppm->waitForStarted())
{
qDebug() << "pdftoppm died";
throw ConvertFailedException();
}
if(!ppm2pwg->waitForStarted())
{
qDebug() << "ppm2pwg died";
throw ConvertFailedException();
}
qDebug() << "All started";
bool ppm2pwgSuccess = false;
for(;;)
{
if(ppm2pwg->waitForFinished(250))
{
ppm2pwgSuccess = true;
break;
}
else
{
QList<QByteArray> ppm2pwgOutput = ppm2pwg->readAllStandardError().split('\n');
for(QList<QByteArray>::iterator it = ppm2pwgOutput.begin(); it != ppm2pwgOutput.end(); it++)
{
if(it->startsWith("Page"))
{
QList<QByteArray> ppm2pwgTokens = it->split(' ');
emit progress(ppm2pwgTokens.last().toInt()-1, pages);
}
}
}
}
if(!ppm2pwgSuccess)
{
qDebug() << "ppm2pwg failed";
throw ConvertFailedException();
}
}

6
src/convertworker.h
View file

@ -40,6 +40,12 @@ signals:
void done(QNetworkRequest request, QTemporaryFile* data);
void progress(qint64 done, qint64 pages);
void failed(QString message);
private:
void pdfToRaster(QString targetFormat, quint32 Colors, quint32 Quality, QString PaperSize,
quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble,
quint32 PageRangeLow, quint32 PageRangeHigh, quint32 pages,
QTemporaryFile& tmpPdfFile, QTemporaryFile* tempfile);
};
#endif // CONVERTWORKER_H