64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file nodePointerToBase.h
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* @author drose
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* @date 2005-05-07
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*/
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#ifndef NODEPOINTERTOBASE_H
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#define NODEPOINTERTOBASE_H
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#include "pandabase.h"
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#include "pointerToVoid.h"
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#include "memoryUsage.h"
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#include "config_express.h"
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/**
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* This is similar to PointerToBase, but it manages objects of type
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* NodeReferenceCount or NodeCachedReferenceCount, and it updates the
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* node_ref_count instead of the regular ref_count. It is intended for use
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* only in PandaNode, to hold a pointer to RenderState and TransformState,
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* although it could be used by any object that wanted to maintain a separate
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* reference count for reporting purposes.
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*/
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template <class T>
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class NodePointerToBase : public PointerToVoid {
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public:
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typedef T To;
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protected:
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INLINE NodePointerToBase(To *ptr);
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INLINE NodePointerToBase(const NodePointerToBase<T> ©);
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INLINE ~NodePointerToBase();
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INLINE NodePointerToBase(NodePointerToBase<T> &&from) noexcept;
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INLINE void reassign(NodePointerToBase<To> &&from) noexcept;
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void reassign(To *ptr);
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INLINE void reassign(const NodePointerToBase<To> ©);
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// No assignment or retrieval functions are declared in NodePointerToBase,
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// because we will have to specialize on const vs. non-const later.
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PUBLISHED:
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INLINE void clear();
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void output(std::ostream &out) const;
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};
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template<class T>
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INLINE std::ostream &operator <<(std::ostream &out, const NodePointerToBase<T> &pointer) {
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pointer.output(out);
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return out;
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}
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#include "nodePointerToBase.I"
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#endif
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