loader.cpp

#include "loader.hpp"
#include "orthancitem.hpp"
#include <QJsonObject>
#include <QApplication>

QList<isis::data::Image> Loader::getImages(){
	wait();
	QList<isis::data::Image> ret;
	std::copy(images.begin(),images.end(),std::inserter(ret,ret.end()));
	return ret;
}

Loader::~Loader(){
	requestInterruption();
	wait();
}

void Loader::run()
{
	orthanc::access().setPrefix(qApp->property("host").toString());

	std::list<isis::data::Chunk> chunks;

	statusText("querrying ...");

	int wholesize=0;
	QStringList instances;
	foreach(OrthancNode *src,m_downloads){
		int ksize;
		instances.append(src->getInstances(&ksize));
		wholesize+=ksize;
		if(isInterruptionRequested())
			return;
	}
	sizeCalculated(wholesize);
	statusText(
		QString("loading %1MB... ").arg(wholesize/1024)
	);

	int cnt=0;
	foreach (QString inst, instances){
		if(isInterruptionRequested())
			return;

		orthanc::BufferedResource res(QString("/instances/")+inst+"/file","application/dicom",1000);
		QByteArray buff=res.get();
		cnt+=buff.size()/1024;
		progress(cnt);
		isis::data::ValueArray<uint8_t> source((uint8_t*)buff.constData(),buff.size(),isis::data::ValueArray<uint8_t>::NonDeleter());
		try{
			chunks.splice(chunks.end(),isis::data::IOFactory::loadChunks(source,{"dcm"}) );
		} catch (isis::data::IOFactory::io_error &e){
			qWarning() << "Failed to load instance " << inst << "with error" << e.what() << "in" << e.which()->getName().c_str();
		}
    }

	statusText("processing ... ");
	images=isis::data::IOFactory::chunkListToImageList(chunks);
	statusText(QString("%1 images are ready ... ").arg(images.size()));
}