App/Toponaming: Add addition TNP methods

src/App/ComplexGeoData.cpp

@@ -184,6 +184,11 @@ bool ComplexGeoData::getCenterOfGravity(Base::Vector3d& unused) const
     return false;
 }
 
+const std::string &ComplexGeoData::elementMapPrefix() {
+    static std::string prefix(";");
+    return prefix;
+}
+
 size_t ComplexGeoData::getElementMapSize(bool flush) const
 {
     if (flush) {
@@ -621,6 +626,25 @@ unsigned int ComplexGeoData::getMemSize() const
     return 0;
 }
 
+
+void ComplexGeoData::setMappedChildElements(const std::vector<Data::ElementMap::MappedChildElements> & children)
+{
+    // DO NOT reset element map if there is one. Because we allow mixing child
+    // mapping and normal mapping
+    if (!_elementMap) {
+        resetElementMap(std::make_shared<Data::ElementMap>());
+    }
+    _elementMap->addChildElements(Tag, children);
+}
+
+std::vector<Data::ElementMap::MappedChildElements> ComplexGeoData::getMappedChildElements() const
+{
+    if (!_elementMap) {
+        return {};
+    }
+    return _elementMap->getChildElements();
+}
+
 void ComplexGeoData::beforeSave() const
 {
     flushElementMap();