WindowFactory.h

/***********************************************************************
    created:    21/2/2004
    author:     Paul D Turner

    purpose:    Defines abstract base class for WindowFactory objects
*************************************************************************/
/***************************************************************************
 *   Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team
 *
 *   Permission is hereby granted, free of charge, to any person obtaining
 *   a copy of this software and associated documentation files (the
 *   "Software"), to deal in the Software without restriction, including
 *   without limitation the rights to use, copy, modify, merge, publish,
 *   distribute, sublicense, and/or sell copies of the Software, and to
 *   permit persons to whom the Software is furnished to do so, subject to
 *   the following conditions:
 *
 *   The above copyright notice and this permission notice shall be
 *   included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 ***************************************************************************/
#ifndef _CEGUIWindowFactory_h_
#define _CEGUIWindowFactory_h_

#include "CEGUI/Base.h"
#include "CEGUI/String.h"
#include "CEGUI/Window.h"

#define CEGUI_DECLARE_WINDOW_FACTORY( T )\
    class T ## Factory : public WindowFactory\
    {\
    public:\
        T ## Factory() : WindowFactory( T::WidgetTypeName ) {}\
        Window* createWindow(const String& name)\
        {\
            return CEGUI_NEW_AO T(d_type, name);\
        }\
        void destroyWindow(Window* window)\
        {\
            CEGUI_DELETE_AO window;\
        }\
    };\
    T ## Factory& get ## T ## Factory();

#define CEGUI_DEFINE_WINDOW_FACTORY( T )\
    T ## Factory& get ## T ## Factory()\
    {\
        static T ## Factory s_factory;\
        return s_factory;\
    }

#define CEGUI_WINDOW_FACTORY( T ) (get ## T ## Factory())

// Start of CEGUI namespace section
namespace CEGUI
{
class CEGUIEXPORT WindowFactory :
    public AllocatedObject<WindowFactory>
{
public:
    virtual Window* createWindow(const String& name) = 0;

    virtual void destroyWindow(Window* window) = 0;

    const String& getTypeName() const
    { return d_type; }

    virtual ~WindowFactory()
    {}

protected:
    WindowFactory(const String& type) :
        d_type(type)
    {}

protected:
    String  d_type;
};

} // End of  CEGUI namespace section

#endif // end of guard _CEGUIWindowFactory_h_