source: GTP/trunk/Lib/Geom/OgreStuff/include/CEGUI/CEGUIExceptions.h @ 1809

/************************************************************************
        filename:       CEGUIExceptions.h
        created:        20/2/2004
        author:         Paul D Turner
        
        purpose:        Defines exceptions used within the system
*************************************************************************/
/*************************************************************************
    Crazy Eddie's GUI System (http://www.cegui.org.uk)
    Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)

    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 _CEGUIExceptions_h_
#define _CEGUIExceptions_h_

#include "CEGUIBase.h"
#include "CEGUIString.h"


// Start of CEGUI namespace section
namespace CEGUI
{
/*!
\brief
        Root exception class used within the GUI system.
*/
class  CEGUIEXPORT Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        Exception(const String& message);
        virtual ~Exception(void);

        /*!
        \brief
                Return a reference to the String object describing the reason for the exception being thrown.

        \return
                String object containing a message describing the reason for the exception.
        */
        const String&   getMessage(void) const          {return d_message;}


protected:
        String  d_message;
};

/*!
\brief
        Exception class used when none of the other classes are applicable
*/
class CEGUIEXPORT GenericException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        GenericException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when a request was made using a name of an unknown object
*/
class CEGUIEXPORT UnknownObjectException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        UnknownObjectException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when some impossible request was made for the current system state
*/
class CEGUIEXPORT InvalidRequestException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        InvalidRequestException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when a file handling problem occurs
*/
class CEGUIEXPORT FileIOException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        FileIOException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when an problem is detected within the Renderer or related objects
*/
class CEGUIEXPORT RendererException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        RendererException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when an attempt is made to use an object name that is already in use within the system
*/
class CEGUIEXPORT AlreadyExistsException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        AlreadyExistsException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when a memory handling error is detected
*/
class CEGUIEXPORT MemoryException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        MemoryException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when some required object or parameter is null
*/
class CEGUIEXPORT NullObjectException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        NullObjectException(const String& message) : Exception(message) {}
};

/*!
\brief
        Exception class used when some attempt to delete, remove, or otherwise invalidate some object that is still in use occurs.
*/
class CEGUIEXPORT ObjectInUseException : public Exception
{
public:
        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        ObjectInUseException(const String& message) : Exception(message) {}
};


} // End of  CEGUI namespace section


#endif  // end of guard _CEGUIExceptions_h_