GUI: serialization refactoring part 7

The the rest of classes have got readFrom and writeTo methods.

Serialization of instruments is done.

The rest of work is to remove all usages and mentions of serialization.

GUI/Model/Project/ProjectDocument.cpp

@@ -324,11 +324,12 @@ void ProjectDocument::writeProject(QIODevice* device)
     m_sampleItems.writeTo(&w);
     w.writeEndElement();
 
+    // instruments
     w.writeStartElement(Tag::Instruments);
-    Streamer sInstruments(&w);
-    m_instruments.serialize(sInstruments);
+    m_instruments.writeTo(&w);
     w.writeEndElement();
 
+    // job model and real model
     m_applicationModels.writeTo(&w);
 
     w.writeEndElement(); // BornAgain tag
@@ -375,19 +376,12 @@ ProjectDocument::ReadResult ProjectDocument::readProject(QIODevice* device,
                             m_sampleItems.readFrom(&r);
                             XML::gotoEndElementOfTag(&r, tag);
 
-                        } else if (r.name() == Tag::Instruments) {
-                            Streamer s(&r);
-                            m_instruments.serialize(s);
-                            // cleanup
-                            if (r.name() != Tag::Instruments) {
-                                if (!r.isEndElement())
-                                    r.skipCurrentElement();
-                                r.skipCurrentElement();
-                            }
-                            XML::assertExpectedTag(&r, Tag::Instruments);
-                            ASSERT(r.isEndElement());
-
-                            XML::assertExpectedTag(&r, Tag::Instruments);
+                            // instruments
+                        } else if (tag == Tag::Instruments) {
+                            m_instruments.readFrom(&r);
+                            XML::gotoEndElementOfTag(&r, tag);
+
+                            // job model and real model
                         } else
                             m_applicationModels.readFrom(&r, &messageService);
                     }