added getNativeVariable

Author: florianlink

src/PythonQt.cpp

@@ -575,7 +575,7 @@ PyObject* PythonQtPrivate::wrapPtr(void* ptr, const QByteArray& name, bool passO
       // if the object is a derived object, we want to switch the class info to the one of the derived class:
       if (name!=(qptr->metaObject()->className())) {
         info = _knownClassInfos.value(qptr->metaObject()->className());
-        if (!info) {
+        if (!info || (info->pythonQtClassWrapper() == NULL)) {
           registerClass(qptr->metaObject());
           info = _knownClassInfos.value(qptr->metaObject()->className());
         }
@@ -1021,6 +1021,16 @@ QVariant PythonQt::getVariable(PyObject* object, const QString& objectname)
   return result;
 }
 
+QVariant PythonQt::getNativeVariable(PyObject* object, const QString& objectname)
+{
+  QVariant result;
+  PythonQtObjectPtr obj = lookupObject(object, objectname);
+  if (obj) {
+    result = QVariant::fromValue(obj);
+  }
+  return result;
+}
+
 QStringList PythonQt::introspection(PyObject* module, const QString& objectname, PythonQt::ObjectType type)
 {
   QStringList results;

src/PythonQt.h

@@ -400,6 +400,9 @@ class PYTHONQT_EXPORT PythonQt : public QObject {
   //! get the variable with the \c name of the \c object, returns an invalid QVariant on error
   QVariant getVariable(PyObject* object, const QString& name);
 
+  //! get the variable with the \c name of the \c object as QVariant of type PythonQtObjectPtr, returns an invalid QVariant on error
+  QVariant getNativeVariable(PyObject* object, const QString& name);
+
   //! read vars etc. in scope of an \c object, optional looking inside of an object \c objectname
   QStringList introspection(PyObject* object, const QString& objectname, ObjectType type);
   //! read vars etc. in scope of the given \c object