58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/**
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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 factory.h
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* @author drose
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* @date 2000-05-08
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*/
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#ifndef FACTORY_H
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#define FACTORY_H
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#include "pandabase.h"
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#include "factoryBase.h"
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/**
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* A Factory can be used to create an instance of a particular subclass of
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* some general base class. Each subclass registers itself with the Factory,
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* supplying a function that will construct an instance of that subclass; the
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* Factory can later choose a suitable subclass and return a newly-constructed
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* pointer to an object of that type on the user's demand. This is used, for
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* instance, to manage the set of GraphicsPipes available to the user.
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*
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* This is a thin template wrapper around FactoryBase. All it does is ensure
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* the types are correctly cast. All of its methods are inline, and it has no
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* data members, so it is not necessary to export the class from the DLL.
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*/
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template<class Type>
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class Factory : public FactoryBase {
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public:
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typedef Type *CreateFunc(const FactoryParams ¶ms);
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INLINE Type *make_instance(TypeHandle handle,
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const FactoryParams ¶ms = FactoryParams());
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INLINE Type *make_instance(const std::string &type_name,
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const FactoryParams ¶ms = FactoryParams());
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INLINE Type *
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make_instance_more_general(TypeHandle handle,
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const FactoryParams ¶ms = FactoryParams());
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INLINE Type *
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make_instance_more_general(const std::string &type_name,
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const FactoryParams ¶ms = FactoryParams());
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INLINE void register_factory(TypeHandle handle, CreateFunc *func,
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void *user_data = nullptr);
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};
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#include "factory.I"
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#endif
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