SANSRunWindow.cpp

//----------------------
// Includes
//----------------------
#include "MantidQtCustomInterfaces/SANSRunWindow.h"
#include "MantidQtCustomInterfaces/SANSUtilityDialogs.h"
#include "MantidQtCustomInterfaces/SANSAddFiles.h"
#include "MantidQtAPI/FileDialogHandler.h"

#include "MantidKernel/ConfigService.h"
#include "MantidKernel/Logger.h"
#include "MantidKernel/Exception.h"
#include "MantidAPI/FrameworkManager.h"
#include "MantidAPI/IAlgorithm.h"
#include "MantidAPI/AlgorithmManager.h"
#include "MantidAPI/AnalysisDataService.h"
#include "MantidAPI/WorkspaceGroup.h"
#include "MantidAPI/SpectraDetectorMap.h"
#include "MantidGeometry/IInstrument.h"
#include "MantidGeometry/IComponent.h"
#include "MantidGeometry/V3D.h"
#include "MantidKernel/Exception.h"

#include <QLineEdit>
#include <QHash>
#include <QTextStream>
#include <QTreeWidgetItem>
#include <QMessageBox>
#include <QInputDialog>
#include <QSignalMapper>
#include <QHeaderView>
#include <QApplication>
#include <QClipboard>
#include <QTemporaryFile>
#include <QDateTime>

#include "boost/lexical_cast.hpp"

//Add this class to the list of specialised dialogs in this namespace
namespace MantidQt
{
namespace CustomInterfaces
{
  DECLARE_SUBWINDOW(SANSRunWindow);
}
}

using namespace MantidQt::MantidWidgets;
using namespace MantidQt::API;
using namespace MantidQt::CustomInterfaces;
using namespace Mantid::Kernel;
using namespace Mantid::API;
using Mantid::Geometry::IInstrument_sptr;
using Mantid::Geometry::IInstrument;

// Initialize the logger
Logger& SANSRunWindow::g_log = Logger::get("SANSRunWindow");

//----------------------------------------------
// Public member functions
//----------------------------------------------
///Constructor
SANSRunWindow::SANSRunWindow(QWidget *parent) :
  UserSubWindow(parent), m_addFilesTab(NULL), m_saveWorkspaces(NULL),
  m_data_dir(""), m_ins_defdir(""), m_last_dir(""),
  m_cfg_loaded(true), m_userFname(false), m_sample_no(), m_run_no_boxes(),
  m_period_lbls(), m_warnings_issued(false), m_force_reload(false),
  m_log_warnings(false),
  m_delete_observer(*this, &SANSRunWindow::handleMantidDeleteWorkspace),
  m_s2d_detlabels(), m_loq_detlabels(), m_allowed_batchtags(), m_lastreducetype(-1),
  m_have_reducemodule(false), m_dirty_batch_grid(false), m_tmp_batchfile("")
{
}

///Destructor
SANSRunWindow::~SANSRunWindow()
{
  if( isInitialized() )
  {
    // Seems to crash on destruction of if I don't do this 
    AnalysisDataService::Instance().notificationCenter.removeObserver(m_delete_observer);
    saveSettings();
    delete m_addFilesTab;
  }
}

//--------------------------------------------
// Private member functions
//--------------------------------------------
/**
 * Set up the dialog layout
 */
void SANSRunWindow::initLayout()
{
  g_log.debug("Initializing interface layout");
  m_uiForm.setupUi(this);

  m_reducemapper = new QSignalMapper(this);
  m_mode_mapper = new QSignalMapper(this);

  //Set column stretch on the mask table
  m_uiForm.mask_table->horizontalHeader()->setStretchLastSection(true);

  setupSaveBox();
  
  connectButtonSignals();

  // Disable most things so that load is the only thing that can be done
  m_uiForm.oneDBtn->setEnabled(false);
  m_uiForm.twoDBtn->setEnabled(false);
  m_uiForm.saveDefault_btn->setEnabled(false);
  for( int i = 1; i < 4; ++i)
  {
    m_uiForm.tabWidget->setTabEnabled(i, false);
  }

  //Mode switches
  connect(m_uiForm.single_mode_btn, SIGNAL(clicked()), m_mode_mapper, SLOT(map()));
  m_mode_mapper->setMapping(m_uiForm.single_mode_btn, SANSRunWindow::SingleMode);
  connect(m_uiForm.batch_mode_btn, SIGNAL(clicked()), m_mode_mapper, SLOT(map()));
  m_mode_mapper->setMapping(m_uiForm.batch_mode_btn, SANSRunWindow::BatchMode);
  connect(m_mode_mapper, SIGNAL(mapped(int)), this, SLOT(switchMode(int)));

  //Set a custom context menu for the batch table
  m_uiForm.batch_table->setContextMenuPolicy(Qt::ActionsContextMenu);
  m_batch_paste = new QAction(tr("&Paste"),m_uiForm.batch_table);
  m_batch_paste->setShortcut(tr("Ctrl+P"));
  connect(m_batch_paste, SIGNAL(activated()), this, SLOT(pasteToBatchTable()));
  m_uiForm.batch_table->addAction(m_batch_paste);

  m_batch_clear = new QAction(tr("&Clear"),m_uiForm.batch_table);    
  m_uiForm.batch_table->addAction(m_batch_clear);
  connect(m_batch_clear, SIGNAL(activated()), this, SLOT(clearBatchTable()));

  //Logging
  connect(this, SIGNAL(logMessageReceived(const QString&)), this, SLOT(updateLogWindow(const QString&)));
  connect(m_uiForm.logger_clear, SIGNAL(clicked()), this, SLOT(clearLogger()));
  m_uiForm.logging_field->ensureCursorVisible();

  connect(m_uiForm.verbose_check, SIGNAL(stateChanged(int)), this, SLOT(verboseMode(int)));

  //Create the widget hash maps
  initWidgetMaps();

  connectChangeSignals();

  // Add Python set functions as underlying data 
  m_uiForm.inst_opt->setItemData(0, "LOQ()");
  m_uiForm.inst_opt->setItemData(1, "SANS2D()");

  //Add shortened forms of step types to step boxes
  m_uiForm.wav_dw_opt->setItemData(0, "LIN");
  m_uiForm.wav_dw_opt->setItemData(1, "LOG");
  m_uiForm.q_dq_opt->setItemData(0, "LIN");
  m_uiForm.q_dq_opt->setItemData(1, "LOG");
  m_uiForm.qy_dqy_opt->setItemData(0, "LIN");
  m_uiForm.trans_opt->setItemData(0,"Log");
  m_uiForm.trans_opt->setItemData(1,"Linear");
  m_uiForm.trans_opt->setItemData(2,"Off");

  //the file widget always has a *.* filter, passing an empty list means we get only that
  m_uiForm.floodFile->setAlgorithmProperty("CorrectToFile|Filename");
  m_uiForm.floodFile->isOptional(true);

  if( ! m_addFilesTab )
  {//sets up the AddFiles tab which must be deleted in the destructor
    m_addFilesTab = new SANSAddFiles(this, &m_uiForm);
  }
  //List for Workspace delete signals
  AnalysisDataService::Instance().notificationCenter.addObserver(m_delete_observer);

  readSettings();
}

/**
 * Run local Python initialization code
 */
void SANSRunWindow::initLocalPython()
{
  // Import the SANS module and set the correct instrument
  QString result = runPythonCode("try:\n\timport ISISReducer\n\t__GUI_only_reduce=ISISReducer.ISISReducer()\nexcept (ImportError,SyntaxError), details:\tprint 'Error importing ISISReducer: ' + str(details)\n");
  if( result.trimmed().isEmpty() )
  {
    m_have_reducemodule = true;
  }
  else
  {
    showInformationBox(result);
    m_have_reducemodule = false;
    setProcessingState(true, -1);    
  }
  runPythonCode("import ISISCommands\nimport copy");
  QString initInstrCom = m_uiForm.inst_opt->itemData(
                              m_uiForm.inst_opt->currentIndex()).toString();
  runPythonCode("import SANSInsts\nimport ISISReductionSteps");
  handleInstrumentChange(m_uiForm.inst_opt->currentIndex());
}
/** Initialise some of the data and signal connections in the save box
*/
void SANSRunWindow::setupSaveBox()
{
  connect(m_uiForm.saveDefault_btn, SIGNAL(clicked()), this, SLOT(handleDefSaveClick()));
  connect(m_uiForm.saveSel_btn, SIGNAL(clicked()),
    this, SLOT(saveWorkspacesDialog()));
  connect(m_uiForm.saveFilename_btn, SIGNAL(clicked()),
    this, SLOT(saveFileBrowse()));
  connect(m_uiForm.outfile_edit, SIGNAL(textEdited(const QString &)),
    this, SLOT(setUserFname()));

  //link the save option tick boxes to their save algorithm
  m_savFormats.insert(m_uiForm.saveNex_check, "SaveNexus");
  m_savFormats.insert(m_uiForm.saveCan_check, "SaveCanSAS1D");
  m_savFormats.insert(m_uiForm.saveRKH_check, "SaveRKH");
  m_savFormats.insert(m_uiForm.saveCSV_check, "SaveCSV");

  for(SavFormatsConstIt i=m_savFormats.begin(); i != m_savFormats.end(); ++i)
  {
    connect(i.key(), SIGNAL(stateChanged(int)),
      this, SLOT(enableOrDisableDefaultSave()));
  }
}
/** Raises a saveWorkspaces dialog which allows people to save any workspace or
*  workspaces the user chooses
*/
void SANSRunWindow::saveWorkspacesDialog()
{
  //this dialog must have delete on close selected to aviod a memory leak
  m_saveWorkspaces =
    new SaveWorkspaces(this, m_uiForm.outfile_edit->text(), m_savFormats);
  //this dialog sometimes needs to run Python, pass this to Mantidplot via our runAsPythonScript() signal
  connect(m_saveWorkspaces, SIGNAL(runAsPythonScript(const QString&)),
    this, SIGNAL(runAsPythonScript(const QString&)));
  //we need know if we have a pointer to a valid window or not
  connect(m_saveWorkspaces, SIGNAL(closing()),
    this, SLOT(saveWorkspacesClosed()));
  m_uiForm.saveSel_btn->setEnabled(false);
  m_saveWorkspaces->show();
}
/**When the save workspaces dialog box is closes its pointer, m_saveWorkspaces,
* is set to NULL and the raise dialog button is re-enabled
*/
void SANSRunWindow::saveWorkspacesClosed()
{
  m_uiForm.saveSel_btn->setEnabled(true);
  m_saveWorkspaces = NULL;
}
/** Connection the buttons to their signals
*/
void SANSRunWindow::connectButtonSignals()
{
  connect(m_uiForm.data_dirBtn, SIGNAL(clicked()), this, SLOT(selectDataDir()));
  connect(m_uiForm.userfileBtn, SIGNAL(clicked()), this, SLOT(selectUserFile()));
  connect(m_uiForm.csv_browse_btn,SIGNAL(clicked()), this, SLOT(selectCSVFile()));

  connect(m_uiForm.load_dataBtn, SIGNAL(clicked()), this, SLOT(handleLoadButtonClick()));
  connect(m_uiForm.runcentreBtn, SIGNAL(clicked()), this, SLOT(handleRunFindCentre()));

  // Reduction buttons
  connect(m_uiForm.oneDBtn, SIGNAL(clicked()), m_reducemapper, SLOT(map()));
  m_reducemapper->setMapping(m_uiForm.oneDBtn, "1D");
  connect(m_uiForm.twoDBtn, SIGNAL(clicked()), m_reducemapper, SLOT(map()));
  m_reducemapper->setMapping(m_uiForm.twoDBtn, "2D");
  connect(m_reducemapper, SIGNAL(mapped(const QString &)), this, SLOT(handleReduceButtonClick(const QString &)));
    
  connect(m_uiForm.showMaskBtn, SIGNAL(clicked()), this, SLOT(handleShowMaskButtonClick()));
  connect(m_uiForm.clear_log, SIGNAL(clicked()), m_uiForm.centre_logging, SLOT(clear()));
}
/** Connect signals from the textChanged() signal from text boxes, index changed
*  on ComboBoxes etc.
*/
void SANSRunWindow::connectChangeSignals()
{
  //Connect each box's edited signal to flag if the box's text has changed
  for( int idx = 0; idx < 9; ++idx )
  {
    connect(m_run_no_boxes.value(idx), SIGNAL(textEdited(const QString&)), this, SLOT(runChanged()));
  }

  connect(m_uiForm.smpl_offset, SIGNAL(textEdited(const QString&)), this, SLOT(runChanged()));
  connect(m_uiForm.outfile_edit, SIGNAL(textEdited(const QString&)),
    this, SLOT(enableOrDisableDefaultSave()));

  // Combo boxes
  connect(m_uiForm.wav_dw_opt, SIGNAL(currentIndexChanged(int)), this, 
    SLOT(handleStepComboChange(int)));
  connect(m_uiForm.q_dq_opt, SIGNAL(currentIndexChanged(int)), this, 
    SLOT(handleStepComboChange(int)));
  connect(m_uiForm.qy_dqy_opt, SIGNAL(currentIndexChanged(int)), this, 
    SLOT(handleStepComboChange(int)));

  connect(m_uiForm.inst_opt, SIGNAL(currentIndexChanged(int)), this, 
    SLOT(handleInstrumentChange(const int)));

  // Default transmission switch
  connect(m_uiForm.def_trans, SIGNAL(stateChanged(int)), this, SLOT(updateTransInfo(int)));

  connect(m_uiForm.enableFlood_ck, SIGNAL(stateChanged(int)), this, SLOT(prepareFlood(int)));
}
/**
 * Initialize the widget maps
 */
void SANSRunWindow::initWidgetMaps()
{
  //          single run mode settings
    //Text edit map
    m_run_no_boxes.insert(0, m_uiForm.sct_sample_edit);
    m_run_no_boxes.insert(1, m_uiForm.sct_can_edit);
    m_run_no_boxes.insert(2, m_uiForm.sct_bkgd_edit);
    m_run_no_boxes.insert(3, m_uiForm.tra_sample_edit);
    m_run_no_boxes.insert(4, m_uiForm.tra_can_edit);
    m_run_no_boxes.insert(5, m_uiForm.tra_bkgd_edit);
    m_run_no_boxes.insert(6, m_uiForm.direct_sample_edit);
    m_run_no_boxes.insert(7, m_uiForm.direct_can_edit);
    m_run_no_boxes.insert(8, m_uiForm.direct_bkgd_edit);

    //Period label hash. Each label has a buddy set to its corresponding text edit field
    m_period_lbls.insert(0, m_uiForm.sct_prd_tot1);
    m_period_lbls.insert(1, m_uiForm.sct_prd_tot2);
    m_period_lbls.insert(2, m_uiForm.sct_prd_tot3);
    m_period_lbls.insert(3, m_uiForm.tra_prd_tot1);
    m_period_lbls.insert(4, m_uiForm.tra_prd_tot2);
    m_period_lbls.insert(5, m_uiForm.tra_prd_tot3);
    m_period_lbls.insert(6, m_uiForm.direct_prd_tot1);
    m_period_lbls.insert(7, m_uiForm.direct_prd_tot2);   
    m_period_lbls.insert(8, m_uiForm.direct_prd_tot3);

  //       batch mode settings
  m_allowed_batchtags.insert("sample_sans",0);
  m_allowed_batchtags.insert("sample_trans",1);
  m_allowed_batchtags.insert("sample_direct_beam",2);
  m_allowed_batchtags.insert("can_sans",3);
  m_allowed_batchtags.insert("can_trans",4);
  m_allowed_batchtags.insert("can_direct_beam",5);
  m_allowed_batchtags.insert("background_sans",-1);
  m_allowed_batchtags.insert("background_trans",-1);
  m_allowed_batchtags.insert("background_direct_beam",-1);
  m_allowed_batchtags.insert("output_as",6);

  //            detector info  
  // SANS2D det names/label map
    QHash<QString, QLabel*> labelsmap;
    labelsmap.insert("Front_Det_Z", m_uiForm.dist_smp_frontZ);
    labelsmap.insert("Front_Det_X", m_uiForm.dist_smp_frontX);
    labelsmap.insert("Front_Det_Rot", m_uiForm.smp_rot);
    labelsmap.insert("Rear_Det_X", m_uiForm.dist_smp_rearX);
    labelsmap.insert("Rear_Det_Z", m_uiForm.dist_smp_rearZ);
    m_s2d_detlabels.append(labelsmap);
  
    labelsmap.clear();
    labelsmap.insert("Front_Det_Z", m_uiForm.dist_can_frontZ);
    labelsmap.insert("Front_Det_X", m_uiForm.dist_can_frontX);
    labelsmap.insert("Front_Det_Rot", m_uiForm.can_rot);
    labelsmap.insert("Rear_Det_X", m_uiForm.dist_can_rearX);
    labelsmap.insert("Rear_Det_Z", m_uiForm.dist_can_rearZ);
    m_s2d_detlabels.append(labelsmap);

    labelsmap.clear();
    labelsmap.insert("Front_Det_Z", m_uiForm.dist_bkgd_frontZ);
    labelsmap.insert("Front_Det_X", m_uiForm.dist_bkgd_frontX);
    labelsmap.insert("Front_Det_Rot", m_uiForm.bkgd_rot);
    labelsmap.insert("Rear_Det_X", m_uiForm.dist_bkgd_rearX);
    labelsmap.insert("Rear_Det_Z", m_uiForm.dist_bkgd_rearZ);
    m_s2d_detlabels.append(labelsmap);

    //LOQ labels
    labelsmap.clear();
    labelsmap.insert("moderator-sample", m_uiForm.dist_sample_ms);
    labelsmap.insert("sample-main-detector-bank", m_uiForm.dist_smp_mdb);
    labelsmap.insert("sample-HAB",m_uiForm.dist_smp_hab);
    m_loq_detlabels.append(labelsmap);
  
    labelsmap.clear();
    labelsmap.insert("moderator-sample", m_uiForm.dist_can_ms);
    labelsmap.insert("sample-main-detector-bank", m_uiForm.dist_can_mdb);
    labelsmap.insert("sample-HAB",m_uiForm.dist_can_hab);
    m_loq_detlabels.append(labelsmap);

    labelsmap.clear();
    labelsmap.insert("moderator-sample", m_uiForm.dist_bkgd_ms);
    labelsmap.insert("sample-main-detector-bank", m_uiForm.dist_bkgd_mdb);
    labelsmap.insert("sample-HAB", m_uiForm.dist_bkgd_hab);
    m_loq_detlabels.append(labelsmap);

    // Full workspace names as they appear in the service
    m_workspace_names.clear();

}

/**
 * Restore previous input
 */
void SANSRunWindow::readSettings()
{
  g_log.debug("Reading settings.");
  QSettings value_store;
  value_store.beginGroup("CustomInterfaces/SANSRunWindow");
  m_uiForm.datadir_edit->setText(value_store.value("data_dir").toString());
  m_uiForm.userfile_edit->setText(value_store.value("user_file").toString());
  m_last_dir = value_store.value("last_dir", "").toString();

  m_uiForm.inst_opt->setCurrentIndex(value_store.value("instrument", 0).toInt());
  
  int mode_flag = value_store.value("runmode", 0).toInt();
  if( mode_flag == SANSRunWindow::SingleMode )
  {
    m_uiForm.single_mode_btn->click();
  }
  else
  {
    m_uiForm.batch_mode_btn->click();
  }

  //The instrument definition directory
  m_ins_defdir = QString::fromStdString(ConfigService::Instance().getString("instrumentDefinition.directory"));

  //Set old file extension
  m_uiForm.file_opt->setCurrentIndex(value_store.value("fileextension", 0).toInt());

  m_uiForm.enableFlood_ck->setChecked(
                   value_store.value("enable_flood_correct",true).toBool());
  m_uiForm.floodFile->setEnabled(m_uiForm.enableFlood_ck->isChecked());
  m_uiForm.floodFile->readSettings("flood_correct");

  value_store.endGroup();
  readSaveSettings(value_store);

  g_log.debug() << "Found previous data directory " << m_uiForm.datadir_edit->text().toStdString()
    << "\nFound previous user mask file " << m_uiForm.userfile_edit->text().toStdString()
    << "\nFound instrument definition directory " << m_ins_defdir.toStdString() << std::endl;

}
/** Sets the states of the checkboxes in the save box using those
* in the passed QSettings object
*  @param valueStore where the settings will be stored
*/
void SANSRunWindow::readSaveSettings(QSettings & valueStore)
{
  valueStore.beginGroup("CustomInterfaces/SANSRunWindow/SaveOutput");
  m_uiForm.saveNex_check->setChecked(valueStore.value("nexus",false).toBool());
  m_uiForm.saveCan_check->setChecked(valueStore.value("canSAS",false).toBool());
  m_uiForm.saveRKH_check->setChecked(valueStore.value("RKH", false).toBool());
  m_uiForm.saveCSV_check->setChecked(valueStore.value("CSV", false).toBool());
}

/**
 * Save input for future use
 */
void SANSRunWindow::saveSettings()
{
  QSettings value_store;
  value_store.beginGroup("CustomInterfaces/SANSRunWindow");
  if( !m_data_dir.isEmpty() ) 
  {
    value_store.setValue("data_dir", m_data_dir);
  }
  if( !m_uiForm.userfile_edit->text().isEmpty() ) 
  {
    value_store.setValue("user_file", m_uiForm.userfile_edit->text());
  }

  value_store.setValue("last_dir", m_last_dir);

  value_store.setValue("instrument", m_uiForm.inst_opt->currentIndex());
  value_store.setValue("fileextension", m_uiForm.file_opt->currentIndex());

  value_store.setValue("enable_flood_correct", m_uiForm.enableFlood_ck->isChecked());
  m_uiForm.floodFile->saveSettings("flood_correct");

  unsigned int mode_id(0);
  if( m_uiForm.single_mode_btn->isChecked() )
  {
    mode_id = SANSRunWindow::SingleMode;
  }
  else
  {
    mode_id = SANSRunWindow::BatchMode;
  }
  value_store.setValue("runmode",mode_id);
  value_store.endGroup();
  saveSaveSettings(value_store);
}
/** Stores the state of the checkboxes in the save box with the
* passed QSettings object
*  @param valueStore where the settings will be stored
*/
void SANSRunWindow::saveSaveSettings(QSettings & valueStore)
{
  valueStore.beginGroup("CustomInterfaces/SANSRunWindow/SaveOutput");
  valueStore.setValue("nexus", m_uiForm.saveNex_check->isChecked());
  valueStore.setValue("canSAS", m_uiForm.saveCan_check->isChecked());
  valueStore.setValue("RKH", m_uiForm.saveRKH_check->isChecked());
  valueStore.setValue("CSV", m_uiForm.saveCSV_check->isChecked());
}
/**
 * Run a function from the SANS reduction script, ensuring that the first call imports the module
 * @param pycode The code to execute
 * @returns A trimmed string containing the output of the code execution
 */
QString SANSRunWindow::runReduceScriptFunction(const QString & pycode)
{
  if( !m_have_reducemodule )
  {
    return QString();
  }
  g_log.debug() << "Executing Python: " << pycode.toStdString() << std::endl;

  const static QString PYTHON_SEP("C++runReduceScriptFunctionC++");
  QString code_torun =  pycode + ";print '"+PYTHON_SEP+"'";
  QString pythonOut = runPythonCode(code_torun).trimmed();
  
  QStringList allOutput = pythonOut.split(PYTHON_SEP);

  if ( allOutput.count() < 2 )
  {
    QMessageBox::critical(this, "Fatal error found during reduction", "Error reported by Python script\n" + pythonOut);
    return "Error";
  }

  return allOutput[0];
}

/**
 * Trim off Python markers surrounding things like strings or lists that have been 
 * printed by Python
 */
void SANSRunWindow::trimPyMarkers(QString & txt)
{
 txt.remove(0,1);
 txt.chop(1);
}

/**
 * Load the user file specified in the text field
 * @returns Boolean indicating whether we were successful or not
 */
bool SANSRunWindow::oldLoadUserFile()
{
  QString filetext = m_uiForm.userfile_edit->text();
  if( filetext.isEmpty() ) return false;
  if( QFileInfo(filetext).isRelative() )
  {
    filetext = QDir(m_data_dir).absoluteFilePath(filetext);
  }

  if( !QFileInfo(filetext).exists() ) return false;

  QFile user_file(filetext);
  if( !user_file.open(QIODevice::ReadOnly) ) return false;

  user_file.close();

  //Clear the def masking info table.
  int mask_table_count = m_uiForm.mask_table->rowCount();
  for( int i = mask_table_count - 1; i >= 0; --i )
  {
    m_uiForm.mask_table->removeRow(i);
  }

  QString instFunc =
    m_uiForm.inst_opt->itemData(m_uiForm.inst_opt->currentIndex()).toString().trimmed();
  runReduceScriptFunction("SANSReduction."+instFunc);

  // Use python function to read the file and then extract the fields
  if ( runReduceScriptFunction("print SANSReduction.MaskFile(r'"+filetext+"')") != "True\n" )
  {
    return false;
  }

  double unit_conv(1000.);
  // Radius
  double dbl_param = runReduceScriptFunction("SANSReduction.printParameter('RMIN'),").toDouble();
  m_uiForm.rad_min->setText(QString::number(dbl_param*unit_conv));
  dbl_param = runReduceScriptFunction("SANSReduction.printParameter('RMAX'),").toDouble();
  m_uiForm.rad_max->setText(QString::number(dbl_param*unit_conv));
  //Wavelength
  m_uiForm.wav_min->setText(runReduceScriptFunction("SANSReduction.printParameter('WAV1'),"));
  m_uiForm.wav_max->setText(runReduceScriptFunction("SANSReduction.printParameter('WAV2'),"));
  setLimitStepParameter("wavelength", runReduceScriptFunction("SANSReduction.printParameter('DWAV'),"), m_uiForm.wav_dw, m_uiForm.wav_dw_opt);
  //Q
  QString text = runReduceScriptFunction("SANSReduction.printParameter('Q_REBIN'),");
  QStringList values = text.split(",");
  if( values.count() == 3 )
  {
    m_uiForm.q_min->setText(values[0].trimmed());
    m_uiForm.q_max->setText(values[2].trimmed());
    setLimitStepParameter("Q", values[1].trimmed(), m_uiForm.q_dq, m_uiForm.q_dq_opt);
  }
  else
  {
    m_uiForm.q_rebin->setText(text.trimmed());
    m_uiForm.q_dq_opt->setCurrentIndex(2);
  }
  //Qxy
  m_uiForm.qy_max->setText(runReduceScriptFunction("SANSReduction.printParameter('QXY2'),"));
  setLimitStepParameter("Qxy", runReduceScriptFunction("SANSReduction.printParameter('DQXY'),"), m_uiForm.qy_dqy, m_uiForm.qy_dqy_opt);

  // Tranmission options
  m_uiForm.trans_min->setText(runReduceScriptFunction("SANSReduction.printParameter('TRANS_WAV1'),"));
  m_uiForm.trans_max->setText(runReduceScriptFunction("SANSReduction.printParameter('TRANS_WAV2'),"));
  text = runReduceScriptFunction("SANSReduction.printParameter('TRANS_FIT')");
  int index = m_uiForm.trans_opt->findData(text, Qt::UserRole, Qt::MatchFixedString);
  if( index >= 0 )
  {
    m_uiForm.trans_opt->setCurrentIndex(index);
  }

  //Monitor spectra
  m_uiForm.monitor_spec->setText(runReduceScriptFunction(
    "SANSReduction.printParameter('INSTRUMENT.get_incident_mon()'),"));
  m_uiForm.trans_monitor->setText(runReduceScriptFunction(
    "SANSReduction.printParameter('INSTRUMENT.incid_mon_4_trans_calc'),"));
  m_uiForm.monitor_interp->setChecked(runReduceScriptFunction(
    "SANSReduction.printParameter('INSTRUMENT.is_interpolating_norm')").trimmed() == "True");
  m_uiForm.trans_interp->setChecked(
    runReduceScriptFunction("SANSReduction.printParameter('INSTRUMENT.use_interpol_trans_calc'),").trimmed() == "True");

  //Direct efficiency correction
  m_uiForm.direct_file->setText(runReduceScriptFunction("SANSReduction.printParameter('SANSReduction.DIRECT_BEAM_FILE_R'),"));
  m_uiForm.front_direct_file->setText(runReduceScriptFunction("SANSReduction.printParameter('SANSReduction.DIRECT_BEAM_FILE_F'),"));

  QString file = runReduceScriptFunction("SANSReduction.printParameter('NORMALISATION_FILE'),");
  //Check if the file name is set to Python's None object
  file = file == "None " ? "" : file;
  m_uiForm.floodFile->setFileText(file);

  //Scale factor
  dbl_param = runReduceScriptFunction("SANSReduction.printParameter('RESCALE'),").toDouble();
  m_uiForm.scale_factor->setText(QString::number(dbl_param/100.));

  //Sample offset if one has been specified
  dbl_param = runReduceScriptFunction("SANSReduction.printParameter('SAMPLE_Z_CORR'),").toDouble();
  m_uiForm.smpl_offset->setText(QString::number(dbl_param*unit_conv));

  //Centre coordinates
  dbl_param = runReduceScriptFunction("SANSReduction.printParameter('XBEAM_CENTRE'),").toDouble();
  m_uiForm.beam_x->setText(QString::number(dbl_param*1000.0));
  dbl_param = runReduceScriptFunction("SANSReduction.printParameter('YBEAM_CENTRE'),").toDouble();
  m_uiForm.beam_y->setText(QString::number(dbl_param*1000.0));

  //Gravity switch
  QString param = runReduceScriptFunction("SANSReduction.printParameter('GRAVITY')");
  if( param.trimmed() == "True" )
  {
    m_uiForm.gravity_check->setChecked(true);
  }
  else
  {
    m_uiForm.gravity_check->setChecked(false);
  }

  ////Detector bank
  QString detName = runReduceScriptFunction(
    "SANSReduction.printParameter('INSTRUMENT.cur_detector().name()')");
  detName = detName.trimmed();
  index = m_uiForm.detbank_sel->findText(detName);
  if( index >= 0 && index < 2 )
  {
    m_uiForm.detbank_sel->setCurrentIndex(index);
  }

  //Masking table
  updateMaskTable();

  if ( runReduceScriptFunction("SANSReduction.printParameter('PHIMIRROR')").trimmed() == "True" )
  {
    m_uiForm.mirror_phi->setChecked(true);
  }
  else
  {
    m_uiForm.mirror_phi->setChecked(false);
  }

  m_cfg_loaded = true;
  m_uiForm.userfileBtn->setText("Reload");
  m_uiForm.tabWidget->setTabEnabled(m_uiForm.tabWidget->count() - 1, true);
  return true;
}

bool SANSRunWindow::loadUserFile()
{
  QString filetext = m_uiForm.userfile_edit->text().trimmed();
  if( filetext.isEmpty() ) return false;
  if( QFileInfo(filetext).isRelative() )
  {
    filetext = QDir(m_data_dir).absoluteFilePath(filetext);
  }
  
  if( !QFileInfo(filetext).exists() ) return false;
  
  QFile user_file(filetext);
  if( !user_file.open(QIODevice::ReadOnly) ) return false;

  user_file.close();
  
  //Clear the def masking info table.
  int mask_table_count = m_uiForm.mask_table->rowCount();
  for( int i = mask_table_count - 1; i >= 0; --i )
  {
    m_uiForm.mask_table->removeRow(i);
  }

  // Use python function to read the file and then extract the fields
  runReduceScriptFunction(
//    "__GUI_only_reduce.user_settings = ISISReductionSteps.UserFile(r'"+filetext+"')\n");
      "__GUI_only_reduce.user_settings = ISISReductionSteps.UserFile(r'"+filetext+"')");//r'"+

  QString status = runReduceScriptFunction(
      "print __GUI_only_reduce.user_settings.execute(__GUI_only_reduce, None)").trimmed();
  if ( status != "True" )
  {
    return false;
  }

  double unit_conv(1000.);
  // Radius
  double dbl_param = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.min_radius").toDouble();
  m_uiForm.rad_min->setText(QString::number(dbl_param*unit_conv));
  dbl_param = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.max_radius").toDouble();
  m_uiForm.rad_max->setText(QString::number(dbl_param*unit_conv));
  //Wavelength
  m_uiForm.wav_min->setText(runReduceScriptFunction(
      "print __GUI_only_reduce.to_wavelen.wav_low"));
  m_uiForm.wav_max->setText(runReduceScriptFunction(
      "print __GUI_only_reduce.to_wavelen.wav_high").trimmed());
  const QString wav_step = runReduceScriptFunction(
      "print __GUI_only_reduce.to_wavelen.wav_step").trimmed();
  setLimitStepParameter("wavelength", wav_step, m_uiForm.wav_dw,
                        m_uiForm.wav_dw_opt);
  //Q
  QString text = runReduceScriptFunction(
      "print __GUI_only_reduce.Q_REBIN");
  QStringList values = text.split(",");
  if( values.count() == 3 )
  {
    m_uiForm.q_min->setText(values[0].trimmed());
    m_uiForm.q_max->setText(values[2].trimmed());
    setLimitStepParameter("Q", values[1].trimmed(), m_uiForm.q_dq,
        m_uiForm.q_dq_opt);
  }
  else
  {
    m_uiForm.q_rebin->setText(text.trimmed());
    m_uiForm.q_dq_opt->setCurrentIndex(2);
  }
  //Qxy
  m_uiForm.qy_max->setText(runReduceScriptFunction(
      "print __GUI_only_reduce.QXY2"));
  setLimitStepParameter("Qxy", runReduceScriptFunction(
      "print __GUI_only_reduce.DQXY"), m_uiForm.qy_dqy,
      m_uiForm.qy_dqy_opt);

  // Tranmission options
  m_uiForm.trans_min->setText(runReduceScriptFunction(
      "print __GUI_only_reduce.get_trans_lambdamin()"));
  m_uiForm.trans_max->setText(runReduceScriptFunction(
      "print __GUI_only_reduce.get_trans_lambdamax()"));
  text = runReduceScriptFunction(
      "print __GUI_only_reduce.transmission_calculator.fit_method").trimmed();
  int index = m_uiForm.trans_opt->findData(text, Qt::UserRole, Qt::MatchFixedString);
  if( index >= 0 )
  {
    m_uiForm.trans_opt->setCurrentIndex(index);
  }

  //Monitor spectra
  m_uiForm.monitor_spec->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.get_incident_mon()"));
  m_uiForm.trans_monitor->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.incid_mon_4_trans_calc"));
  m_uiForm.monitor_interp->setChecked(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.is_interpolating_norm").trimmed() == "True");
  m_uiForm.trans_interp->setChecked(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.use_interpol_trans_calc"
    ).trimmed() == "True");

  //Direct efficiency correction
  m_uiForm.direct_file->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.detector_file('rear')"));
  m_uiForm.front_direct_file->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.inst.detector_file('front')"));

  QString file = runReduceScriptFunction(
      "print __GUI_only_reduce.flood_file.get_filename()");
  //Check if the file name is set to Python's None object
  file = file == "None" ? "" : file;
  m_uiForm.floodFile->setFileText(file);

  //Scale factor
  dbl_param = runReduceScriptFunction(
    "print __GUI_only_reduce._corr_and_scale.rescale").toDouble();
  m_uiForm.scale_factor->setText(QString::number(dbl_param/100.));

  //Sample offset if one has been specified
  dbl_param = runReduceScriptFunction(
    "print __GUI_only_reduce.inst.SAMPLE_Z_CORR").toDouble();
  m_uiForm.smpl_offset->setText(QString::number(dbl_param*unit_conv));

  //Centre coordinates
  dbl_param = runReduceScriptFunction(
    "print __GUI_only_reduce._beam_finder.get_beam_center()[0]").toDouble();
  m_uiForm.beam_x->setText(QString::number(dbl_param*1000.0));
  dbl_param = runReduceScriptFunction(
    "print __GUI_only_reduce._beam_finder.get_beam_center()[1]").toDouble();
  m_uiForm.beam_y->setText(QString::number(dbl_param*1000.0));

  //Gravity switch
  QString param = runReduceScriptFunction(
    "print __GUI_only_reduce.to_Q.gravity").trimmed();
  if( param == "True" )
  {
    m_uiForm.gravity_check->setChecked(true);
  }
  else
  {
    m_uiForm.gravity_check->setChecked(false);
  }
  
  ////Detector bank
  QString detName = runReduceScriptFunction(
    "print __GUI_only_reduce.inst.cur_detector().name()").trimmed();
  index = m_uiForm.detbank_sel->findText(detName);  
  if( index >= 0 && index < 2 )
  {
    m_uiForm.detbank_sel->setCurrentIndex(index);
  }

  //Masking table
  updateMaskTable();
 
  // Phi values 
  m_uiForm.phi_min->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.mask.phi_min"));
  m_uiForm.phi_max->setText(runReduceScriptFunction(
    "print __GUI_only_reduce.mask.phi_max"));

  if ( runReduceScriptFunction(
    "print __GUI_only_reduce.mask.phi_mirror").trimmed() == "True" )
  {
    m_uiForm.mirror_phi->setChecked(true);
  }
  else
  {
    m_uiForm.mirror_phi->setChecked(false);
  }
  
  m_cfg_loaded = true;
  m_uiForm.userfileBtn->setText("Reload");
  m_uiForm.tabWidget->setTabEnabled(m_uiForm.tabWidget->count() - 1, true);
  return true;
}

/**
 * Load a CSV file specifying information run numbers and populate the batch mode grid
 */
bool SANSRunWindow::loadCSVFile()
{
  QString filename = m_uiForm.csv_filename->text(); 
  QFile csv_file(filename);
  if( !csv_file.open(QIODevice::ReadOnly | QIODevice::Text) )
  {
    showInformationBox("Error: Cannot open CSV file \"" + filename + "\"");
    return false;
  }
  
  //Clear the current table
  clearBatchTable();
  QTextStream file_in(&csv_file);
  int errors(0);
  while( !file_in.atEnd() )
  {
    QString line = file_in.readLine().simplified();
    if( !line.isEmpty() )
    {
      errors += addBatchLine(line, ",");
    }
  }
  if( errors > 0 )
  {
    showInformationBox("Warning: " + QString::number(errors) + " malformed lines detected in \"" + filename + "\". Lines skipped.");
  }
  return true;
}

/**
 * Set a pair of an QLineEdit field and type QComboBox using the parameter given
 * @param pname The name of the parameter
 * @param param A string representing a value that maybe prefixed with a minus to indicate a different step type
 * @param step_value The field to store the actual value
 * @param step_type The combo box with the type options
 */
void SANSRunWindow::setLimitStepParameter(const QString& pname, QString param, QLineEdit* step_value, QComboBox* step_type)
{
  if( param.startsWith("-") )
  {
    int index = step_type->findText("Logarithmic");
    if( index < 0 )
    {
     raiseOneTimeMessage("Warning: Unable to find logarithmic scale option for " + pname + ", setting as linear.", 1);
     index = step_type->findText("Linear");
    }
    step_type->setCurrentIndex(index);
    step_value->setText(param.remove(0,1));
  }
  else
  {
    step_type->setCurrentIndex(step_type->findText("Linear"));
    step_value->setText(param);
  }
}

/**
 * Construct the mask table on the Mask tab 
 */
void SANSRunWindow::updateMaskTable()
{
  //Clear the current contents
  for( int i = m_uiForm.mask_table->rowCount() - 1; i >= 0; --i )
  {
	  m_uiForm.mask_table->removeRow(i);
	}

  QString reardet_name("rear-detector"), frontdet_name("front-detector");
  if( m_uiForm.inst_opt->currentIndex() == 0 )
  {
    reardet_name = "main-detector-bank";
    frontdet_name = "HAB";
  }
  
  // First create 2 default mask cylinders at min and max radius for the beam stop and 
  // corners
  m_uiForm.mask_table->insertRow(0);
  m_uiForm.mask_table->setItem(0, 0, new QTableWidgetItem("beam stop"));
  m_uiForm.mask_table->setItem(0, 1, new QTableWidgetItem(reardet_name));
  m_uiForm.mask_table->setItem(0, 2, new QTableWidgetItem("infinite-cylinder, r = rmin"));
  if( m_uiForm.rad_max->text() != "-1" )
  {  
    m_uiForm.mask_table->insertRow(1);
    m_uiForm.mask_table->setItem(1, 0, new QTableWidgetItem("corners"));
    m_uiForm.mask_table->setItem(1, 1, new QTableWidgetItem(reardet_name));
    m_uiForm.mask_table->setItem(1, 2, new QTableWidgetItem("infinite-cylinder, r = rmax"));
  }

  //Now add information from the mask file
  //Spectrum mask, "Rear" det
  QString mask_string = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.spec_mask_r");
  addSpectrumMasksToTable(mask_string, reardet_name);
  //"Front" det
  mask_string = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.spec_mask_f");
  addSpectrumMasksToTable(mask_string, frontdet_name);

  //Time masks
  mask_string = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.time_mask");
  addTimeMasksToTable(mask_string, "-");
  //Rear detector
  mask_string = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.time_mask_r");
  addTimeMasksToTable(mask_string, reardet_name);
  //Front detectors
  mask_string = runReduceScriptFunction(
      "print __GUI_only_reduce.mask.time_mask_f");
  addTimeMasksToTable(mask_string, frontdet_name);
}

/**
 * Add a spectrum mask string to the mask table
 * @param mask_string The string of mask information
 * @param det_name The detector it relates to 
 */
void SANSRunWindow::addSpectrumMasksToTable(const QString & mask_string, const QString & det_name)
{
  QStringList elements = mask_string.split(",", QString::SkipEmptyParts);
  QStringListIterator sitr(elements);
  while(sitr.hasNext())
  {
    QString item = sitr.next().trimmed();
    QString col1_txt;
    if( item.startsWith('s', Qt::CaseInsensitive) )
    {
      col1_txt = "Spectrum";
    }
    else if( item.startsWith('h', Qt::CaseInsensitive) || item.startsWith('v', Qt::CaseInsensitive) )
    {
      if( item.contains('+') )
      {
        col1_txt = "Box";
      }
      else
      {
        col1_txt = "Strip";
      }
    }
    else continue;

    int row = m_uiForm.mask_table->rowCount();
    //Insert line after last row
    m_uiForm.mask_table->insertRow(row);