/***********************************************************************
    created:    Sun Jan 11 2009
    author:     Paul D Turner
*************************************************************************/
/***************************************************************************
     Copyright (C) 2004 - 2009 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 _CEGUIOpenGLViewportTarget_h_
#define _CEGUIOpenGLViewportTarget_h_

#include "CEGUI/RendererModules/OpenGL/RenderTarget.h"
#include "../../Rect.h"

// Start of CEGUI namespace section
namespace CEGUI
{
  /*!
    \brief
      OpenGL implementation of a RenderTarget that represents am on-scren
      viewport.
  */
  class OPENGL_GUIRENDERER_API OpenGLViewportTarget : public OpenGLRenderTarget<RenderTarget>
  {
  public:
    /*!
      \brief
        Construct a default OpenGLViewportTarget that uses the currently
        defined OpenGL viewport as it's initial area.
    */
    OpenGLViewportTarget(OpenGLRendererBase &owner);

    virtual ~OpenGLViewportTarget();

    /*!
      \brief
        Construct a OpenGLViewportTarget that uses the specified Rect as it's
        initial area.

      \param area
        Rect object describing the initial viewport area that should be used for
        the RenderTarget.
    */
    OpenGLViewportTarget(OpenGLRendererBase &owner, const Rectf &area);

    // implementations of RenderTarget interface
    bool isImageryCache() const;
  };

} // End of  CEGUI namespace section

#endif  // end of guard _CEGUIOpenGLViewportTarget_h_
