Method SetSynchronizationGroup

Modules/QtWidgets/src/QmitkMxNMultiWidget.cpp:1628–1665

}

void QmitkMxNMultiWidget::SetSynchronizationGroup(QmitkSynchronizedNodeSelectionWidget* synchronizedWidget, const GroupSyncIndexType index)
{
  if (nullptr == synchronizedWidget)
  {
    mitkThrow() << "SetSynchronizationGroup: synchronizedWidget must not be null.";
  }

  // Auto-create on first reference. Add() validates index >= 1 and storage presence.
  if (m_SynchronizedWidgetConnectors.find(index) == m_SynchronizedWidgetConnectors.end())
  {
    this->AddSynchronizationGroup(index);
  }

  const auto old_index = synchronizedWidget->GetSyncGroup();

  if (old_index == index)
  {
    // Already on this group. Connector edge stays (no double-Connect that would
    // double-bump the connection counter); just refresh state from the connector
    // so the freshly attached widget sees the cached selection / select-all mode.
    m_SynchronizedWidgetConnectors[index]->SynchronizeWidget(synchronizedWidget);
    return;
  }

  // For the initial setting of the synchronization, nothing old is there to disconnect.
  if (old_index != -1)
  {
    const auto oldIt = m_SynchronizedWidgetConnectors.find(old_index);
    if (oldIt != m_SynchronizedWidgetConnectors.end())
    {
      oldIt->second->DisconnectWidget(synchronizedWidget);
    }
  }

  synchronizedWidget->SetSyncGroup(index);
  m_SynchronizedWidgetConnectors[index]->ConnectWidget(synchronizedWidget);
  m_SynchronizedWidgetConnectors[index]->SynchronizeWidget(synchronizedWidget);
}

QmitkSynchronizedWidgetConnector* QmitkMxNMultiWidget::GetSyncGroupConnector(const GroupSyncIndexType index) const
{