Sketcher: ExternalGeometryExtension - refactor flag string to type in static function

src/Mod/Sketcher/App/ExternalGeometryExtension.cpp

@@ -85,3 +85,20 @@ PyObject * ExternalGeometryExtension::getPyObject(void)
     return new ExternalGeometryExtensionPy(new ExternalGeometryExtension(*this));
 }
 
+bool ExternalGeometryExtension::getFlagsFromName(std::string str, ExternalGeometryExtension::Flag &flag)
+{
+    auto pos = std::find_if(    ExternalGeometryExtension::flag2str.begin(),
+                                ExternalGeometryExtension::flag2str.end(),
+                                [str](const char * val) {
+                                    return strcmp(val,str.c_str())==0;}
+                                );
+
+    if( pos != ExternalGeometryExtension::flag2str.end()) {
+            int index = std::distance( ExternalGeometryExtension::flag2str.begin(), pos );
+
+            flag = static_cast<ExternalGeometryExtension::Flag>(index);
+            return true;
+    }
+
+    return false;
+}