120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
133 lines
4.3 KiB
C++
133 lines
4.3 KiB
C++
/***************************************************************************
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* (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Library General Public License (LGPL) *
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* as published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* for detail see the LICENCE text file. *
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* *
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* FreeCAD is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with FreeCAD; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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* USA *
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* *
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* Juergen Riegel 2002 *
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***************************************************************************/
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#ifndef BASE_FACTORY_H
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#define BASE_FACTORY_H
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#include<typeinfo>
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#include<string>
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#include<map>
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#include<list>
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#include"../FCConfig.h"
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namespace Base
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{
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/// Abstract base class of all producers
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class BaseExport AbstractProducer
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{
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public:
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AbstractProducer() {}
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virtual ~AbstractProducer() {}
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/// overwriten by a concret producer to produce the needed object
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virtual void* Produce (void) const = 0;
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};
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/** Base class of all factories
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* This class has the purpose to produce at runtime instances
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* of classes not known at compile time. It holds a map of so called
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* producers which are able to produce an instance of a special class.
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* Producer can be registered at runtime through e.g. application modules
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*/
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class BaseExport Factory
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{
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public:
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/// Adds a new prducer instance
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void AddProducer (const char* sClassName, AbstractProducer *pcProducer);
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/// returns true if there is a producer for this class registered
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bool CanProduce(const char* sClassName) const;
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/// returns a list of all registered producer
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std::list<std::string> CanProduce() const;
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protected:
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/// produce a class with the given name
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void* Produce (const char* sClassName) const;
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std::map<const std::string, AbstractProducer*> _mpcProducers;
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/// construction
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Factory (void){}
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/// destruction
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virtual ~Factory ();
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};
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// --------------------------------------------------------------------
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/** The ScriptFactorySingleton singleton
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*/
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class BaseExport ScriptFactorySingleton : public Factory
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{
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public:
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static ScriptFactorySingleton& Instance(void);
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static void Destruct (void);
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const char* ProduceScript (const char* sScriptName) const;
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private:
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static ScriptFactorySingleton* _pcSingleton;
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ScriptFactorySingleton(){}
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~ScriptFactorySingleton(){}
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};
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inline ScriptFactorySingleton& ScriptFactory(void)
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{
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return ScriptFactorySingleton::Instance();
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}
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// --------------------------------------------------------------------
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/** Script Factory
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* This class produce Scirpts.
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* @see Factory
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*/
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class BaseExport ScriptProducer: public AbstractProducer
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{
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public:
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/// Constructor
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ScriptProducer (const char* name, const char* script) : mScript(script)
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{
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ScriptFactorySingleton::Instance().AddProducer(name, this);
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}
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virtual ~ScriptProducer (void){}
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/// Produce an instance
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virtual void* Produce (void) const
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{
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return (void*)mScript;
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}
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private:
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const char* mScript;
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};
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} //namespace Base
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#endif
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