Module.h

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/*********************************************************\
 *  File: Module.h                                       *
 *
 *  Copyright (C) 2002-2012 The PixelLight Team (http://www.pixellight.org/)
 *
 *  This file is part of PixelLight.
 *
 *  PixelLight is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  PixelLight is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with PixelLight. If not, see <http://www.gnu.org/licenses/>.
\*********************************************************/


#ifndef __PLCORE_MODULE_H__
#define __PLCORE_MODULE_H__
#pragma once


//[-------------------------------------------------------]
//[ Includes                                              ]
//[-------------------------------------------------------]
#include "PLCore/String/String.h"
#include "PLCore/Container/List.h"


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
namespace PLCore {


//[-------------------------------------------------------]
//[ Forward declarations                                  ]
//[-------------------------------------------------------]
class Class;
class DynLib;


//[-------------------------------------------------------]
//[ Classes                                               ]
//[-------------------------------------------------------]
/**
*  @brief
*    Description and interface for modules
*
*  @remarks
*    A module is a unit like for example an executable or a shared library that contains RTTI content.
*    There can only be one RTTI module per executable or a shared library. A module can either be a
*    plugin or not. The term plugin means in this case that a module is not explicitly linked to the
*    executable or to a used shared library and therefore not loaded automatically by the operation
*    system on startup.
*/
class Module {


    //[-------------------------------------------------------]
    //[ Friends                                               ]
    //[-------------------------------------------------------]
    friend class ClassDummy;
    friend class ClassManager;


    //[-------------------------------------------------------]
    //[ Public functions                                      ]
    //[-------------------------------------------------------]
    public:
        /**
        *  @brief
        *    Get module ID
        *
        *  @return
        *    Module ID
        */
        inline uint32 GetModuleID() const;

        /**
        *  @brief
        *    Check if module is loaded as a plugin
        *
        *  @return
        *    'true' if module is a plugin, else 'false'
        */
        inline bool IsPlugin() const;

        /**
        *  @brief
        *    Get dynamic library that contains the plugin
        *
        *  @return
        *    Pointer to dynamic library (can be a null pointer, if the module is not a plugin, do NOT destroy the returned instance!)
        *
        *  @remarks
        *    This function will only return a dynamic library, if the module is a plugin
        */
        inline DynLib *GetDynLib() const;

        /**
        *  @brief
        *    Get absolute filename of dynamic library or executable that contains the plugin
        *
        *  @return
        *    Absolute filename of dynamic library or executable that contains the plugin (native path style, can be empty in case it was impossible to determine the filename)
        */
        inline String GetFilename() const;

        /**
        *  @brief
        *    Get module name
        *
        *  @return
        *    Name
        */
        inline String GetName() const;

        /**
        *  @brief
        *    Get module vendor
        *
        *  @return
        *    Vendor name
        */
        inline String GetVendor() const;

        /**
        *  @brief
        *    Get module license
        *
        *  @return
        *    License
        */
        inline String GetLicense() const;

        /**
        *  @brief
        *    Get module description
        *
        *  @return
        *    Description
        */
        inline String GetDescription() const;

        /**
        *  @brief
        *    Get classes of module
        *
        *  @return
        *    List of classes
        *
        *  @remarks
        *    This method always returns all classes of a module.
        *    If you want to search for classes with more specific search criteria,
        *    have a look at ClassManager::GetClasses().
        */
        inline const List<const Class*> &GetClasses() const;


    //[-------------------------------------------------------]
    //[ Private functions                                     ]
    //[-------------------------------------------------------]
    private:
        /**
        *  @brief
        *    Constructor
        *
        *  @param[in] nModuleID
        *    Module ID
        */
        PLCORE_API Module(uint32 nModuleID);

        /**
        *  @brief
        *    Destructor
        */
        PLCORE_API ~Module();

        /**
        *  @brief
        *    Set module information
        *
        *  @param[in] sName
        *    Module name
        *  @param[in] sVendor
        *    Module vendor
        *  @param[in] sLicense
        *    Module license
        *  @param[in] sDescription
        *    Module description
        */
        PLCORE_API void SetModuleInfo(const String &sName, const String &sVendor, const String &sLicense, const String &sDescription);

        /**
        *  @brief
        *    Add class
        *
        *  @param[in] pClass
        *    Pointer to class (must be valid)
        */
        inline void AddClass(const Class *pClass);

        /**
        *  @brief
        *    Remove class
        *
        *  @param[in] pClass
        *    Pointer to class (must be valid)
        */
        inline void RemoveClass(const Class *pClass);


    //[-------------------------------------------------------]
    //[ Private data                                          ]
    //[-------------------------------------------------------]
    private:
        // Module information
        uint32             m_nModuleID;     /**< Module ID */
        bool               m_bPlugin;       /**< Is module a plugin? */
        DynLib            *m_pDynLib;       /**< Plugin library (can be a null pointer, has the ownership over the dynamic library instance) */
        String             m_sFilename;     /**< Absolute absolute filename of dynamic library or executable that contains the plugin (native path style, can be empty in case it was impossible to determine the filename) */
        String             m_sName;         /**< Name of module */
        String             m_sVendor;       /**< Vendor of module */
        String             m_sLicense;      /**< License of module */
        String             m_sDescription;  /**< Description of module */
        // Classes
        List<const Class*> m_lstClasses;    /**< List of classes */


};


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
} // PLCore


//[-------------------------------------------------------]
//[ Implementation                                        ]
//[-------------------------------------------------------]
#include "PLCore/Base/Module.inl"


#endif // __PLCORE_MODULE_H__