OMKIAccessRule.h

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/************************************************************************/
/* This file is part of openMask(c) INRIA, CNRS, Universite de Rennes 1 */
/* 1993-2002, thereinafter the Software                                 */
/*                                                                      */
/* The Software has been developped within the Siames Project.          */
/* INRIA, the University of Rennes 1 and CNRS jointly hold intellectual */
/* property rights                                                      */
/*                                                                      */
/* The Software has been registered with the Agence pour la Protection  */
/* des Programmes (APP) under registration number                       */
/* IDDN.FR.001.510008.00.S.P.2001.000.41200                             */
/*                                                                      */
/* This file may be distributed under the terms of the Q Public License */
/* version 1.0 as defined by Trolltech AS of Norway and appearing in    */
/* the file LICENSE.QPL included in the packaging of this file.         */
/*                                                                      */
/* Licensees holding valid specific licenses issued by INRIA, CNRS or   */
/* Universite Rennes 1 for the software may use this file in            */
/* acordance with that specific license                                 */
/************************************************************************/
                
#if !defined OMK_III_IACCESSRULE_H
#define OMK_III_IACCESSRULE_H

#include "OMKInteraction.h"
#include "OMKName.h"
#include "OBTPrototypeFactory.h"
#include "OMKTracer.h"
#include "OMKControlTakeOverPrm.h"
#include "OMKParametersAccessor.inl"
#include <iostream>

namespace OMK  
{
  namespace Iii
  {
//-----------------------------------------------------------------------------
#define DECLARE_ACCESS_RULE_FACTORY( AccessRuleClass ) \
public: \
 \
  friend class OMK::Iii::AccessRuleCreatorT< AccessRuleClass > ; \
 \
  static OMK::Name OMK_CLASS_ID ; \
 \
  static const bool REGISTERED_IN_ACCESS_RULE_FACTORY ; \
protected: \
 \
        AccessRuleClass( const OMK::ConfigurationParameterDescriptor* node ) ; \
public: \
        virtual ~AccessRuleClass() 

//-----------------------------------------------------------------------------
#define REGISTER_ACCESS_RULE_FACTORY( AccessRuleClass, Id )\
  /* Factory */ \
  OMK::Name AccessRuleClass::OMK_CLASS_ID( Id ) ; \
  const bool AccessRuleClass::REGISTERED_IN_ACCESS_RULE_FACTORY( OMK::AccessRuleFactory::getInstance().registerCreator< OMK::Iii::AccessRuleCreatorT< AccessRuleClass > > ( AccessRuleClass::OMK_CLASS_ID ) )


//-----------------------------------------------------------------------------
class IAccessRule 
{
public:
  enum FreezableType
  {
    UNFREEZABLE,
    FREEZABLE_AT_TOOL_LEVEL,
    FREEZABLE_AT_ANY_LEVEL
  } ;
protected:
  IAccessRule( const ConfigurationParameterDescriptor* node ) ;
public:
  virtual ~IAccessRule() ;
  virtual Type::AccessLevel getAccessLevel( const Name& groupName ) const ;
  virtual const Type::AccessGroupLevel& getCurrentAccessLevel() const { return _currentLevel ; }
  virtual const Type::AccessGroupLevel& getDefaultAccessLevel() const { return _defaultLevel ; }
  virtual void setCurrentLevel( const Type::AccessGroupLevel& level, Type::AccessLevel toolLevel ) = 0 ;
  virtual void resetCurrentLevel() ;
  virtual bool isAccessGranted( Type::AccessLevel level, const Name& group ) const ;
protected:
  Type::AccessGroupLevel _defaultLevel ;
  Type::AccessGroupLevel _currentLevel ;
  Type::AccessLevel _freezableLevel ;
  FreezableType _freezableType ;
} ;

//-----------------------------------------------------------------------------
class OMKIII_API AccessRuleCreator
{
public:
  virtual ~AccessRuleCreator() {}
  virtual IAccessRule* operator()( const ConfigurationParameterDescriptor* node ) const
  {
    OMERROR( "Creator is not registered" ) ;
    throw Exception( "Creator is not registered" ) ;
    return 0 ;
  }
} ;

//-----------------------------------------------------------------------------
template <class T>
class AccessRuleCreatorT : public AccessRuleCreator
{
public:
        IAccessRule* operator()( const ConfigurationParameterDescriptor* node ) const
        {
                return new T( node ) ;
        }
} ;



  }// namespace Iii

//-----------------------------------------------------------------------------
typedef OBT::Singleton< OBT::PrototypeFactory< OMK::Name, Iii::AccessRuleCreator > > AccessRuleFactory ;
}// namespace OMK

template class OMKIII_API OBT::PrototypeFactory< OMK::Name, OMK::Iii::AccessRuleCreator > ;
template class OMKIII_API OBT::Singleton< OBT::PrototypeFactory< OMK::Name, OMK::Iii::AccessRuleCreator > > ;

#endif // defined OMK_III_IACCESSRULE_H

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