Method updateWatchVariable

qrenderdoc/Windows/ShaderViewer.cpp:4566–4873

}

bool ShaderViewer::updateWatchVariable(RDTreeWidgetItem *watchItem, const RDTreeWidgetItem *varItem,
                                       const rdcstr &path, uint32_t swizzle,
                                       const SourceVariableMapping &mapping,
                                       const ShaderVariable &var, QChar regcast)
{
  if(!var.members.empty())
  {
    QSet<QString> existing, current;

    // see which members we have already
    for(int i = 0; i < watchItem->childCount(); i++)
      existing.insert(watchItem->child(i)->text(0));

    // see which members are in the variable
    for(int i = 0; i < var.members.count(); i++)
      current.insert(var.members[i].name);

    // if there are no new members in the variable, the existing set will contain the current set
    if(!existing.contains(current))
    {
      // the current variable has some new members in its set - this may be a different structure.
      // Clear the existing watch before updating
      watchItem->clear();
    }

    // iterate over every sub-variable we know about
    QVector<bool> valid;
    valid.resize(watchItem->childCount());
    for(int i = 0; i < var.members.count(); i++)
    {
      int idx = -1;

      QString name = var.members[i].name;

      for(int j = 0; j < watchItem->childCount(); j++)
      {
        if(name == watchItem->child(j)->text(0))
        {
          idx = j;
          break;
        }
      }

      if(idx == -1)
      {
        idx = watchItem->childCount();
        RDTreeWidgetItem *item = new RDTreeWidgetItem({
            name,
            QVariant(),
            QVariant(),
            QVariant(),
        });
        VariableTag tag = VariableTag(DebugVariableType::Variable, path);
        tag.state = WatchVarState::Valid;
        tag.offset = i;
        item->setTag(QVariant::fromValue(tag));
        watchItem->addChild(item);
        valid.push_back(false);