CatalogSelector.cpp

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#include "MantidQtWidgets/Common/CatalogSelector.h"
#include "MantidAPI/CatalogManager.h"
 
#include <QDesktopWidget>
 
namespace MantidQt {
namespace MantidWidgets {
CatalogSelector::CatalogSelector(QWidget *parent) : QWidget(parent), m_uiForm() { initLayout(); }
 
std::vector<std::string> CatalogSelector::getSelectedCatalogSessions() {
  std::vector<std::string> selectedSessions;
  for (int row = 0; row < m_uiForm.selectedCatalogs->count(); ++row) {
    if (m_uiForm.selectedCatalogs->item(row)->isSelected()) {
      selectedSessions.emplace_back(m_uiForm.selectedCatalogs->item(row)->data(Qt::UserRole).toString().toStdString());
    }
  }
  return selectedSessions;
}
 
void CatalogSelector::populateFacilitySelection() {
  auto session = Mantid::API::CatalogManager::Instance().getActiveSessions();
 
  for (unsigned row = 0; row < session.size(); ++row) {
    // This prevents the same items being appended (again) to the list widget.
    if (!m_uiForm.selectedCatalogs->item(row)) {
      QListWidgetItem *item = new QListWidgetItem(QString::fromStdString(session.at(row)->getFacility()));
      // Set sessionID to user specific meta-data to easily obtain it later.
      item->setData(Qt::UserRole, QVariant(QString::fromStdString(session.at(row)->getSessionId())));
      // Add tooltip to see the difference if logged into two facilities with
      // different end-points.
      item->setData(Qt::ToolTipRole, QVariant(QString::fromStdString("The soap-endpoint for this catalog is: " +
                                                                     session.at(row)->getSoapEndpoint())));
      // When a new item is added, we want to select & check it by default.
      item->setCheckState(Qt::Checked);
      m_uiForm.selectedCatalogs->insertItem(row, item);
      m_uiForm.selectedCatalogs->item(row)->setSelected(true);
    }
  }
  // Set the list widget as focus to better show the selected facilities.
  m_uiForm.selectedCatalogs->setFocus();
}
 
void CatalogSelector::initLayout() {
  m_uiForm.setupUi(this);
 
  populateFacilitySelection();
 
  connect(m_uiForm.updateBtn, SIGNAL(clicked()), this, SLOT(close()));
  connect(m_uiForm.cancelBtn, SIGNAL(clicked()), this, SLOT(close()));
 
  // Check/un-check the checkbox when an item is clicked or selected.
  connect(m_uiForm.selectedCatalogs, SIGNAL(itemClicked(QListWidgetItem *)), this,
          SLOT(checkSelectedFacility(QListWidgetItem *)));
 
  // Centre the GUI on screen.
  this->setGeometry(QStyle::alignedRect(Qt::LeftToRight, Qt::AlignCenter, this->window()->size(),
                                        QDesktopWidget().availableGeometry()));
}
 
void CatalogSelector::checkSelectedFacility(QListWidgetItem *item) {
  if (item->isSelected())
    item->setCheckState(Qt::Checked);
  if (!item->isSelected())
    item->setCheckState(Qt::Unchecked);
}
 
} // namespace MantidWidgets
} // namespace MantidQt