subdivPlanarQuadM.h

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//////////////////////////////////////////////////////////////////////
// 6/6/02       Aaron Lefohn    Scientific Computing and Imaging Institute
// School of Computing          University of Utah
//
//  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

#if !defined(AFX_SubdivPlanarQuadM_H__3B8C720A_3269_439D_B67D_27B68936C7E8__INCLUDED_)
#define AFX_SubdivPlanarQuadM_H__3B8C720A_3269_439D_B67D_27B68936C7E8__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "multiPrim.h"
#include "../texCoordGen/scaleTexGen2D.h"

namespace glift {

/////////////////////////////////////////////////////////////////////////
///
/// SubdivPlanarQuadM.h: interface for the SubdivPlanarQuadM class.
///
/// - A subdivided planar quad. 
/// - Currently 'primType' can ONLY be GL_QUAD_STRIP or GL_TRIANGLE_STRIP.
/// - Lowerleft and upperRight are assumed to be in the XY plane (only the x,y components are read). 
///   The quad is therefore always orthogonal to the Z axis with a normal = <0,0,1>
/// - If 'genTexCoords' is true, but no 'altTexGen' is given, the ScaleTexGen2D texCoord
///   generator is used. The 'altTexGen' parameter is used for alternate tex coord generation.
/// - Generates MULTIPLE  primitives (hence the M in the name)
///////////////////////////////////////////////////////////////////////

class _export_ SubdivPlanarQuadM : public MultiPrim
{
public:
   SubdivPlanarQuadM( GLenum primType, const gutz::vec2i& subDiv,
      const gutz::vec2f& lowerLeft, const gutz::vec2f& upperRight, /// z=0.0
      bool genTexCoords=false, bool genNorms=false, 
      TexCoordGen* altTexGen=NULL);

   SubdivPlanarQuadM( GLenum primType, const gutz::vec2i& subDiv,
      const gutz::vec2f& lowerLeft, const gutz::vec2f& upperRight, float z=0.0f, 
      bool genTexCoords=false, bool genNorms=false, 
      TexCoordGen* altTexGen=NULL);

   gutz::vec2f lowerLeft()  const {return m_lowerLeft;}
   gutz::vec2f upperRight() const {return m_upperRight;}
   float                   z()              const {return m_z;}
   gutz::vec2i subDiv()     const {return m_subDiv;}

private:                
   gutz::vec2f   m_lowerLeft;
   gutz::vec2f   m_upperRight;
   float         m_z;
   gutz::vec2i   m_subDiv;      /// Number of subdivisions in each dimension

   SubdivPlanarQuadM();/// Disallow default construction, copy, and assignment

   VecSinglePrimP createStrips( GLenum primType, const gutz::vec2i& subDiv, const gutz::vec2f& lowerLeft, 
      const gutz::vec2f& upperRight, float z, 
      bool genTexCoords, bool genNorms, TexCoordGen* texGen );
};

} /// End of namespace glift

#endif /// !defined(AFX_SubdivPlanarQuadM_H__3B8C720A_3269_439D_B67D_27B68936C7E8__INCLUDED_)

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