looqs/shared/pdfprocessor.cpp

#include <QScopedPointer>
#include <poppler-qt5.h>
#include "pdfprocessor.h"
PdfProcessor::PdfProcessor()
{
}

QVector<PageData> PdfProcessor::process(const QByteArray &data) const
{
	QVector<PageData> result;
	QScopedPointer<Poppler::Document> doc(Poppler::Document::loadFromData(data));
	if(doc.isNull())
	{
		throw LooqsGeneralException("Failed to process pdf data");
	}
	if(doc->isLocked())
	{
		throw LooqsGeneralException("Doc is locked");
	}

	QRectF entirePage;

	auto pagecount = doc->numPages();
	QString entire;
	entire.reserve(data.size()); // TODO too much
	for(auto i = 0; i < pagecount; i++)
	{
		QString text = doc->page(i)->text(entirePage);
		result.append({static_cast<unsigned int>(i + 1), text});
		/*TODO: hack, so we can fts search several words over the whole document, not just pages.
		 * this of course uses more space and should be solved differently.
		 */
		entire += text;
	}
	result.append({0, entire});
	return result;
}