+ replace old C casts with static_cast in generated C++ code, remove unused parent structure of Python classes, support of -1 as return value of setCustomAttributes

src/Base/ParameterPy.cpp

@@ -223,11 +223,6 @@ PyMethodDef ParameterGrpPy::Methods[] = {
     {NULL, NULL, 0, NULL}		/* Sentinel */
 };
 
-//--------------------------------------------------------------------------
-// Parents structure
-//--------------------------------------------------------------------------
-PyParentObject ParameterGrpPy::Parents[] = {&PyObjectBase::Type,&ParameterGrpPy::Type, NULL};     
-
 //--------------------------------------------------------------------------
 // constructor
 //--------------------------------------------------------------------------

src/Base/PyObjectBase.cpp

@@ -132,11 +132,6 @@ PyMethodDef PyObjectBase::Methods[] = {
     {NULL, NULL, 0, NULL}        /* Sentinel */
 };
 
-/*------------------------------
- * PyObjectBase Parents		-- Every class, even the abstract one should have parents
-------------------------------*/
-PyParentObject PyObjectBase::Parents[] = {&PyObjectBase::Type, NULL};
-
 PyObject* PyObjectBase::__getattr(PyObject * obj, char *attr)
 {
     // This should be the entry in Type

src/Base/PyObjectBase.h

@@ -143,9 +143,7 @@ typedef PyTypeObject * PyParentObject;
 public:                                                     \
     static PyTypeObject   Type;                             \
     static PyMethodDef    Methods[];                        \
-    static PyParentObject Parents[];                        \
-    virtual PyTypeObject *GetType(void) {return &Type;}     \
-    virtual PyParentObject *GetParents(void) {return Parents;}
+    virtual PyTypeObject *GetType(void) {return &Type;}
 
 /** This defines the _getattr_up macro
  *  which allows attribute and method calls
@@ -485,9 +483,6 @@ BaseExport extern PyObject* BaseExceptionFreeCADError;
 
 #endif  // DONT_CATCH_CXX_EXCEPTIONS
 
-/// Root definition of the inheritance tree of the FreeCAD python objects
-#define PARENTSBasePyObjectBase &Base::PyObjectBase::Type,NULL
-
 /** Python helper class 
  *  This class encapsulate the Decoding of UTF8 to a python object.
  *  Including exception handling.