message: Fix warning for ComboBox
diff: @@ -160,7 +160,7 @@ void ComboBox::addItem(const std::string& item, int tag)
  lstItems.addItem(item, tag);
  if (lstItems.count() > mMaxDisplayItems) { return; }
  - lstItems.height(static_cast<float>(lstItems.count() * lstItems.lineHeight()));
  + lstItems.height(static_cast<int>(lstItems.count()) * lstItems.lineHeight());
  lstItems.clearSelection();
  }
  