controlinterface.h

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/*-*-c++-*-*****************************************************************
                          controlinterface.h  -  description
                             -------------------
    begin                : Wed May 8 2002
    copyright            : (C) 2002 by Peter Haase
    email                : mail@p-haase.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This library 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 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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 this library; if not, write to the Free Software   *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef SIMTHETIC_CONTROL_INTERFACE_HEADER
#define SIMTHETIC_CONTROL_INTERFACE_HEADER

#include <stdexcept>
// yes, we really don't need any further headers

namespace simth
{


class Device;


class ControlInterface
{
  public:
    virtual ~ControlInterface() {} ;
};

class ControlInterfaceVoid : public ControlInterface
{

  public:
    virtual void callFunc() = 0;
};

template<class D>
class ControlInterfaceVoidD : public ControlInterfaceVoid
{
  public:
    typedef void (D::* MEM_FUNCTION_VOID)();

  private:
    D* devPtr;

    MEM_FUNCTION_VOID func;

  public:
    ControlInterfaceVoidD(D* dev, MEM_FUNCTION_VOID function);
    /* This function invokes the function that is wrapped
       by this control interface.
    */
    virtual void callFunc() {(devPtr->*func)();}
};

template<class T>
class ControlInterfaceT : public ControlInterface
{

  public:
    virtual void callFunc(T newValue) = 0;
};

template<class T,class D>
class ControlInterfaceTD : public ControlInterfaceT<T>
{
  public:
    typedef void (D::* MEM_FUNCTION_ARG)(T arg);

  private:
    D* devPtr;

    MEM_FUNCTION_ARG func;

  public:
    ControlInterfaceTD(D* dev, MEM_FUNCTION_ARG function);
    void callFunc(T newValue) {(devPtr->*func)(newValue);}

};



template<class D>
ControlInterfaceVoidD<D>::ControlInterfaceVoidD(D* dev, MEM_FUNCTION_VOID function)
    : devPtr(dev), func(function)
{
  if(dev == NULL) {
    throw std::runtime_error("ControlInterface::ControlInterface: device is NULL");
    }
}

template<class T, class D>
ControlInterfaceTD<T,D>::ControlInterfaceTD(D* dev, MEM_FUNCTION_ARG function)
    : devPtr(dev), func(function)
{
  if(dev == NULL) {
    throw std::runtime_error("ControlInterface::ControlInterface: device is NULL");
    }
}



}

#endif

---