Method data

Modules/QtWidgets/src/QmitkRenderWindowDataNodeTableModel.cpp:165–252

}

QVariant QmitkRenderWindowDataNodeTableModel::data(const QModelIndex& index, int role) const
{
  if (!index.isValid() || this != index.model())
  {
    return QVariant();
  }

  if (index.row() < 0 || index.row() >= static_cast<int>(m_CurrentSelection.size()))
  {
    return QVariant();
  }

  mitk::DataNode* dataNode = m_CurrentSelection.at(index.row());

  if (role == QmitkDataNodeRole)
  {
    return QVariant::fromValue<mitk::DataNode::Pointer>(mitk::DataNode::Pointer(dataNode));
  }
  
  if (role == QmitkDataNodeRawPointerRole)
  {
    return QVariant::fromValue<mitk::DataNode*>(dataNode);
  }

  if (index.column() == 0) // data node information column
  {
    QString nodeName = QString::fromStdString(dataNode->GetName());
    if (nodeName.isEmpty())
    {
      nodeName = "unnamed";
    }

    if (role == Qt::DisplayRole || role == Qt::EditRole)
    {
      return nodeName;
    }

    if (role == Qt::ToolTipRole)
    {
      return QVariant("Name of the data node.");
    }

    if (role == Qt::DecorationRole)
    {
      QmitkNodeDescriptor* nodeDescriptor = QmitkNodeDescriptorManager::GetInstance()->GetDescriptor(dataNode);
      return QVariant(nodeDescriptor->GetIcon(dataNode));
    }
  }

  if (index.column() == 1) // node visibility column
  {
    if (role == Qt::DecorationRole)
    {
      auto baseRenderer = m_BaseRenderer.Lock();
      bool visibility = false;
      dataNode->GetVisibility(visibility, baseRenderer);

      return visibility ? QVariant(m_VisibleIcon) : QVariant(m_InvisibleIcon);