File: IRISException.h

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/*=========================================================================

  Program:   ITK-SNAP
  Module:    $RCSfile: IRISException.h,v $
  Language:  C++
  Date:      $Date: 2009/09/16 20:03:13 $
  Version:   $Revision: 1.4 $
  Copyright (c) 2007 Paul A. Yushkevich
  
  This file is part of ITK-SNAP 

  ITK-SNAP is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program 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 General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

  -----

  Copyright (c) 2003 Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.  See the above copyright notices for more information. 

=========================================================================*/
#ifndef __IRIS_Exceptions_h_
#define __IRIS_Exceptions_h_

#include "SNAPCommon.h"
#include <exception>
#include <vector>

using std::string;
using std::exception;

/** 
 * \class IRISException
 * \brief Sets up a family of SNAP/IRIS exceptions
 */
class IRISException : public exception {
protected:
  string m_SimpleMessage;

public:
  IRISException();
  IRISException(const char *message, ...);

  virtual ~IRISException() throw() {};

  virtual const char * what() const throw() { return m_SimpleMessage.c_str(); }

  operator const char *();
};


/**
  Actions can generate warnings. These warnings are simply instances of
  IRISException that are not fired, but rather stored. Warnings do not
  keep the action from executing, they are just messages that are sent to
  the user. Optimally, there should be an option to react to the message.

  Actions can also generate errors, but these are achieved by throwing an
  exception.
  */
class IRISWarning : public IRISException
{
public:
  IRISWarning(const char *fmt, ...);
  IRISWarning();

  virtual ~IRISWarning() throw() {}


};

/**
 * Set macro borrowed from VTK and modified.  Assumes m_ for private vars
 */
#define irisExceptionMacro(name,parent) \
class name : public parent { \
public: \
        name() : parent() {} \
          name(const char *message) : parent(message) {} \
          virtual ~name() throw() {}  \
};

irisExceptionMacro(IRISExceptionIO,IRISException)

#endif