cxDicomImporter.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, 
   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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=========================================================================*/

#include "cxDicomImporter.h"

#include <QCheckBox>
#include <QMessageBox>
#include <QProgressDialog>
#include <QLabel>
// ctkWidgets includes
#include "ctkFileDialog.h"
// ctkDICOMCore includes
#include "ctkDICOMDatabase.h"
#include "ctkDICOMIndexer.h"

namespace cx
{

DicomImporter::DicomImporter(QObject* parent): QObject(parent)
{
        DICOMIndexer = QSharedPointer<ctkDICOMIndexer> (new ctkDICOMIndexer);
        IndexerProgress = 0;
        DisplayImportSummary = true;
        PatientsAddedDuringImport = 0;
        StudiesAddedDuringImport = 0;
        SeriesAddedDuringImport = 0;
        InstancesAddedDuringImport = 0;

        //Initialize import widget
        ImportDialog = new ctkFileDialog();
        QCheckBox* importCheckbox = new QCheckBox("Copy on import", ImportDialog);
        ImportDialog->setBottomWidget(importCheckbox);
        ImportDialog->setFileMode(QFileDialog::Directory);
        ImportDialog->setLabelText(QFileDialog::Accept,"Import");
        ImportDialog->setWindowTitle("Import DICOM files from directory ...");
        ImportDialog->setWindowModality(Qt::ApplicationModal);

        connect(ImportDialog, SIGNAL(fileSelected(QString)),this,SLOT(onImportDirectory(QString)));
}

DicomImporter::~DicomImporter()
{
        delete IndexerProgress;
        ImportDialog->deleteLater();
}

void DicomImporter::setDatabase(QSharedPointer<ctkDICOMDatabase> database)
{
        if (DICOMDatabase)
        {
                disconnect(DICOMDatabase.data(), SIGNAL(patientAdded(int,QString,QString,QString)), this,
                                   SLOT(onPatientAdded(int,QString,QString,QString)));
                disconnect(DICOMDatabase.data(), SIGNAL(studyAdded(QString)), this, SLOT(onStudyAdded(QString)));
                disconnect(DICOMDatabase.data(), SIGNAL(seriesAdded(QString)), this, SLOT(onSeriesAdded(QString)));
                disconnect(DICOMDatabase.data(), SIGNAL(instanceAdded(QString)), this, SLOT(onInstanceAdded(QString)));
        }

        DICOMDatabase = database;

        if (DICOMDatabase)
        {
                connect(DICOMDatabase.data(), SIGNAL(patientAdded(int,QString,QString,QString)), this,
                                SLOT(onPatientAdded(int,QString,QString,QString)));
                connect(DICOMDatabase.data(), SIGNAL(studyAdded(QString)), this, SLOT(onStudyAdded(QString)));
                connect(DICOMDatabase.data(), SIGNAL(seriesAdded(QString)), this, SLOT(onSeriesAdded(QString)));
                connect(DICOMDatabase.data(), SIGNAL(instanceAdded(QString)), this, SLOT(onInstanceAdded(QString)));
        }
}

void DicomImporter::showIndexerDialog()
{
  if (IndexerProgress == 0)
        {
        //
        // Set up the Indexer Progress Dialog
        //
        IndexerProgress = new QProgressDialog( "DICOM Import", "Cancel", 0, 100, NULL,
                 Qt::WindowTitleHint | Qt::WindowSystemMenuHint);

        // We don't want the progress dialog to resize itself, so we bypass the label
        // by creating our own
        QLabel* progressLabel = new QLabel("Initialization...");
        IndexerProgress->setLabel(progressLabel);
        IndexerProgress->setWindowModality(Qt::ApplicationModal);
        IndexerProgress->setMinimumDuration(0);
        IndexerProgress->setValue(0);

        connect(IndexerProgress, SIGNAL(canceled()),
                                 DICOMIndexer.data(), SLOT(cancel()));

        connect(DICOMIndexer.data(), SIGNAL(progress(int)),
                        IndexerProgress, SLOT(setValue(int)));
        connect(DICOMIndexer.data(), SIGNAL(indexingFilePath(QString)),
                        progressLabel, SLOT(setText(QString)));
        connect(DICOMIndexer.data(), SIGNAL(indexingFilePath(QString)),
                        this, SIGNAL(fileIndexed(QString)));
        connect(DICOMIndexer.data(), SIGNAL(indexingFilePath(QString)),
                        this, SLOT(onFileIndexed(QString)));

        // close the dialog
        connect(DICOMIndexer.data(), SIGNAL(indexingComplete()),
                        IndexerProgress, SLOT(close()));
        // reset the database to show new data
        connect(DICOMIndexer.data(), SIGNAL(indexingComplete()),
                        this, SIGNAL(indexingCompleted()));
        // stop indexing and reset the database if canceled
        connect(IndexerProgress, SIGNAL(canceled()),
                        DICOMIndexer.data(), SLOT(cancel()));
        connect(IndexerProgress, SIGNAL(canceled()),
                        this, SLOT(indexingCompleted()));

        // allow users of this widget to know that the process has finished
        connect(IndexerProgress, SIGNAL(canceled()),
                        this, SIGNAL(directoryImported()));
        connect(DICOMIndexer.data(), SIGNAL(indexingComplete()),
                        this, SIGNAL(directoryImported()));
        }
  IndexerProgress->show();
}

bool DicomImporter::displayImportSummary()
{
  return DisplayImportSummary;
}

void DicomImporter::setDisplayImportSummary(bool onOff)
{
  DisplayImportSummary = onOff;
}

int DicomImporter::patientsAddedDuringImport()
{
  return PatientsAddedDuringImport;
}

int DicomImporter::studiesAddedDuringImport()
{
  return StudiesAddedDuringImport;
}

int DicomImporter::seriesAddedDuringImport()
{
  return SeriesAddedDuringImport;
}

int DicomImporter::instancesAddedDuringImport()
{
  return InstancesAddedDuringImport;
}

//----------------------------------------------------------------------------
void DicomImporter::onFileIndexed(const QString& filePath)
{
  // Update the progress dialog when the file name changes
  // - also allows for cancel button
  QCoreApplication::instance()->processEvents();
//  qDebug() << "Indexing \n\n\n\n" << filePath <<"\n\n\n";

}

//----------------------------------------------------------------------------
void DicomImporter::openImportDialog()
{
  ImportDialog->show();
  ImportDialog->raise();
}

//----------------------------------------------------------------------------
void DicomImporter::onPatientAdded(int databaseID, QString patientID, QString patientName, QString patientBirthDate )
{
  Q_UNUSED(databaseID);
  Q_UNUSED(patientID);
  Q_UNUSED(patientName);
  Q_UNUSED(patientBirthDate);
  ++PatientsAddedDuringImport;
}

//----------------------------------------------------------------------------
void DicomImporter::onStudyAdded(QString studyUID)
{
  Q_UNUSED(studyUID);
  ++StudiesAddedDuringImport;
}

//----------------------------------------------------------------------------
void DicomImporter::onSeriesAdded(QString seriesUID)
{
  Q_UNUSED(seriesUID);
  ++SeriesAddedDuringImport;
}

//----------------------------------------------------------------------------
void DicomImporter::onInstanceAdded(QString instanceUID)
{
  Q_UNUSED(instanceUID);
  ++InstancesAddedDuringImport;
}

//----------------------------------------------------------------------------
void DicomImporter::onImportDirectory(QString directory)
{
  if (QDir(directory).exists())
        {
        QCheckBox* copyOnImport = qobject_cast<QCheckBox*>(ImportDialog->bottomWidget());
        QString targetDirectory;
        if (copyOnImport->checkState() == Qt::Checked)
          {
          targetDirectory = DICOMDatabase->databaseDirectory();
          }

        // reset counts
        PatientsAddedDuringImport = 0;
        StudiesAddedDuringImport = 0;
        SeriesAddedDuringImport = 0;
        InstancesAddedDuringImport = 0;

        // show progress dialog and perform indexing
        showIndexerDialog();
        DICOMIndexer->addDirectory(*DICOMDatabase,directory,targetDirectory);

        // display summary result
        if (DisplayImportSummary)
          {
          QString message = "Directory import completed.\n\n";
          message += QString("%1 New Patients\n").arg(QString::number(PatientsAddedDuringImport));
          message += QString("%1 New Studies\n").arg(QString::number(StudiesAddedDuringImport));
          message += QString("%1 New Series\n").arg(QString::number(SeriesAddedDuringImport));
          message += QString("%1 New Instances\n").arg(QString::number(InstancesAddedDuringImport));
          QMessageBox::information(NULL,"DICOM Directory Import", message);
          }
  }
}

} // namespace cx