forked from bartvdbraak/blender
8d2cb5bea4
This changes how the BGE classes and Python work together, which hasnt changed since blender went opensource. The main difference is PyObjectPlus - the base class for most game engine classes, no longer inherit from PyObject, and cannot be cast to a PyObject. This has the advantage that the BGE does not have to keep 2 reference counts valid for C++ and Python. Previously C++ classes would never be freed while python held a reference, however this reference could be problematic eg: a GameObject that isnt in a scene anymore should not be used by python, doing so could even crash blender in some cases. Instead PyObjectPlus has a member "PyObject *m_proxy" which is lazily initialized when python needs it. m_proxy reference counts are managed by python, though it should never be freed while the C++ class exists since it holds a reference to avoid making and freeing it all the time. When the C++ class is free'd it sets the m_proxy reference to NULL, If python accesses this variable it will raise a RuntimeError, (check the isValid attribute to see if its valid without raising an error). - This replaces the m_zombie bool and IsZombie() tests added recently. In python return values that used to be.. return value->AddRef(); Are now return value->GetProxy(); or... return value->NewProxy(true); // true means python owns this C++ value which will be deleted when the PyObject is freed
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/*
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* ListValue.h: interface for the CListValue class.
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* $Id$
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* Copyright (c) 1996-2000 Erwin Coumans <coockie@acm.org>
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Erwin Coumans makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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#if !defined _LISTVALUE_H
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#define _LISTVALUE_H
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#include "Value.h"
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class CListValue : public CPropValue
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{
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Py_Header;
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//PLUGIN_DECLARE_SERIAL (CListValue,CValue)
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public:
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CListValue(PyTypeObject *T = &Type);
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virtual ~CListValue();
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void AddConfigurationData(CValue* menuvalue);
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void Configure(CValue* menuvalue);
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void Add(CValue* value);
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/** @attention not implemented yet :( */
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virtual CValue* Calc(VALUE_OPERATOR op,CValue *val);
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virtual CValue* CalcFinal(VALUE_DATA_TYPE dtype,
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VALUE_OPERATOR op,
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CValue* val);
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virtual double GetNumber();
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virtual CValue* GetReplica();
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public:
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void MergeList(CListValue* otherlist);
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bool RemoveValue(CValue* val);
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void SetReleaseOnDestruct(bool bReleaseContents);
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bool SearchValue(CValue* val);
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CValue* FindValue(const STR_String & name);
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void ReleaseAndRemoveAll();
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virtual void SetModified(bool bModified);
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virtual inline bool IsModified();
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void Remove(int i);
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void Resize(int num);
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void SetValue(int i,CValue* val);
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CValue* GetValue(int i){ assertd(i < m_pValueArray.size()); return m_pValueArray[i];}
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int GetCount() { return m_pValueArray.size();};
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virtual const STR_String & GetText();
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bool CheckEqual(CValue* first,CValue* second);
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virtual PyObject* py_getattro(PyObject* attr);
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virtual PyObject* py_repr(void) {
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PyObject *py_proxy= this->GetProxy();
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PyObject *py_list= PySequence_List(py_proxy);
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PyObject *py_string= PyObject_Repr(py_list);
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Py_DECREF(py_list);
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Py_DECREF(py_proxy);
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return py_string;
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}
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KX_PYMETHOD_O(CListValue,append);
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KX_PYMETHOD_NOARGS(CListValue,reverse);
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KX_PYMETHOD_O(CListValue,index);
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KX_PYMETHOD_O(CListValue,count);
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KX_PYMETHOD_O(CListValue,from_id);
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private:
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std::vector<CValue*> m_pValueArray;
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bool m_bReleaseContents;
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};
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#endif // !defined _LISTVALUE_H
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