Method BuildPVQTree

source/interfaces/implementation/src/G4UIQt.cc:1816–1872

Build Physical Volume tree of touchables

// Build Physical Volume tree of touchables
void G4UIQt::BuildPVQTree(const G4SceneTreeItem& g4stItem, QTreeWidgetItem* qtwItem)
{
  if (fMaxPVDepth < thisSceneTreePVDepth) fMaxPVDepth = thisSceneTreePVDepth;
  thisSceneTreePVDepth++;
  const auto& g4stChildren = g4stItem.GetChildren();
  for (const auto& g4stChild: g4stChildren) {
    QStringList qStringList;
    qStringList.append(g4stChild.GetDescription().c_str());
    auto newQTWItem = new QTreeWidgetItem(qStringList);

    // Add a GUI-side representation of the touchable as a child
    qtwItem->addChild(newQTWItem);
    
    // Load with info from g4stChild
    // There may be a way to add data as a QVariant, or a list of QVariants,
    // but let's try adding a G4SceneTreeItem pointer as a hex string. (There
    // does not seem to be a way of adding a pointer directly.)
    std::ostringstream oss; oss << std::hex << &g4stChild;
    auto data = QVariant(oss.str().c_str());
    newQTWItem->setData(0, Qt::UserRole, data);

    // Load a tooltip
    if (g4stChild.GetType() == G4SceneTreeItem::ghost) {
      auto& nameCopyNo = g4stChild.GetDescription();
      auto name = nameCopyNo.substr(0,nameCopyNo.find(':'));
      oss.str(""); oss << nameCopyNo <<
      ": Click to make visible and get more information."
      "\n  This may not work if the volume is in the \"base path\". (Hover on"
      "\n  G4PhysicalVolumeModel to see base path.) If this is the case,"
      "\n  \"/vis/scene/add/volume " << name << "\" to bring into the displayed tree.)";
      newQTWItem->setToolTip(0, oss.str().c_str());
    } else {  // A fully defined touchable
      oss.str(""); oss << g4stChild.GetPVPath() <<
      "\nTo see properties, right-click/dump.";
      newQTWItem->setToolTip(0, oss.str().c_str());
    }

    // Set the check state
    newQTWItem->setCheckState
    (0, g4stChild.GetVisAttributes().IsVisible()? Qt::Checked: Qt::Unchecked);
    
    // Set the expand state
    newQTWItem->setExpanded(g4stChild.IsExpanded());

    // Set colour icon
    QPixmap pixmap = QPixmap(QSize(16, 16));
    pixmap.fill(ConvertG4ColourToQColor(g4stChild.GetVisAttributes().GetColour()));
    QPainter painter(&pixmap);
    painter.setPen(Qt::black);
    painter.drawRect(0,0,15,15); // Draw contour
    newQTWItem->setIcon(0,pixmap);

    // Continue recursively
    BuildPVQTree(g4stChild,newQTWItem);
  }
  thisSceneTreePVDepth--;
}