Ref T552 Using QDataStream marshalling mixins in value classes.

2026-04-23 22:15:37 +08:00 · 2019-02-27 22:34:02 +00:00
parent fabf6e59ab
commit 6d9f9a286d
23 changed files with 252 additions and 0 deletions
--- a/src/blackmisc/pq/measurementunit.h
+++ b/src/blackmisc/pq/measurementunit.h
@@ -271,6 +271,20 @@ namespace BlackMisc
                (*this) = CMeasurementUnit::None();
            }

+            //! \copydoc BlackMisc::Mixin::DataStreamByMetaClass::marshalToDataStream
+            void marshalToDataStream(QDataStream &stream) const
+            {
+                stream << QString(m_data->m_symbol);
+            }
+
+            //! \copydoc BlackMisc::Mixin::DataStreamByMetaClass::unmarshalFromDataStream
+            void unmarshalFromDataStream(QDataStream &)
+            {
+                // the concrete implementations will override this default
+                // this is required so that None can be marshalled
+                *this = CMeasurementUnit::None();
+            }
+
            //! Equal operator ==
            friend bool operator == (const CMeasurementUnit &a, const CMeasurementUnit &b)
            {