+void ViewProperties::setCategorizedSorting(bool categorized)
+{
+ if (m_node->categorizedSorting() != categorized) {
+ m_node->setCategorizedSorting(categorized);
+ updateTimeStamp();
+ }
+}
+
+bool ViewProperties::categorizedSorting() const
+{
+ return m_node->categorizedSorting();
+}
+
+