Method HelpTreeClicCallback

source/interfaces/implementation/src/G4UIQt.cc:5367–5402

This callback is activated when user selected a item in the help tree */

/**   This callback is activated when user selected a item in the help tree
 */
void G4UIQt::HelpTreeClicCallback()
{
  QTreeWidgetItem* item = nullptr;
  if (fHelpTreeWidget == nullptr) return;

  QList<QTreeWidgetItem*> list = fHelpTreeWidget->selectedItems();
  if (list.isEmpty()) return;
  item = list.first();
  if (item == nullptr) return;

  G4UImanager* UI = G4UImanager::GetUIpointer();
  if (UI == nullptr) return;
  G4UIcommandTree* treeTop = UI->GetTree();

  std::string itemText = GetLongCommandPath(item).toStdString();

  // check if it is a command path
  if (item->childCount() > 0) {
    itemText += "/";
  }
  G4UIcommand* command = treeTop->FindPath(itemText.c_str());

  if (command != nullptr) {
    updateHelpArea(command);
  }
  else {  // this is a command
    G4UIcommandTree* path = treeTop->FindCommandTree(itemText.c_str());
    if (path != nullptr) {
      // this is not a command, this is a sub directory
      // We display the Title
      fParameterHelpLabel->setVisible(true);
      fParameterHelpLabel->setText(path->GetTitle().data());
      fParameterHelpTable->setVisible(false);
    }
  }
}

/**   This callback is activated when user double clic on a item in the help tree
 */