X3DShaderNode.h

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//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API 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 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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 H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __X3DSHADERNODE_H__
#define __X3DSHADERNODE_H__

#include "X3DAppearanceChildNode.h"
#include "SFString.h"

namespace H3D {
  class H3DAPI_API X3DShaderNode : 
    public X3DAppearanceChildNode {
  public:
  
    X3DShaderNode( Inst< DisplayList > _displayList = 0,
                   Inst< SFNode      > _metadata    = 0,
                   Inst< SFBool      > _isSelected  = 0,
                   Inst< SFBool      > _isValid     = 0,
                   Inst< SFBool      > _activate    = 0,
                   Inst< SFString    > _language    = 0);
    
    virtual bool isSupported() {
      return language->getValue() == "GLSL"; 
    }

    void setSelected( bool selected ) {
      isSelected->setValue( selected, id );
    }

    virtual string defaultXMLContainerField() {
      return "shaders";
    }

    static X3DShaderNode *getActiveShader() { return active_shader; }

    auto_ptr< SFBool > isSelected;

    auto_ptr< SFBool > isValid;

    auto_ptr< SFBool > activate;

    auto_ptr< SFString > language;

    static H3DNodeDatabase database;
    protected:
    static X3DShaderNode *active_shader;
  };
}

#endif

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