text: #ifndef  COIN_SOSHADERPROGRAMELEMENT_H
  #define  COIN_SOSHADERPROGRAMELEMENT_H
  
  /**************************************************************************\
   * Copyright (c) Kongsberg Oil & Gas Technologies AS
   * All rights reserved.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   * 
   * Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   * 
   * Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   * 
   * Neither the name of the copyright holder nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  \**************************************************************************/
  
  #include <Inventor/elements/SoReplacedElement.h>
  #include <Inventor/lists/SbList.h>
  
  class SoGLShaderProgram;
  
  // *************************************************************************
  
  class COIN_DLL_API SoGLShaderProgramElement : public SoReplacedElement {
    typedef SoReplacedElement inherited;
    SO_ELEMENT_HEADER(SoGLShaderProgramElement);
  
  public:
    virtual void init(SoState * state);
  
    static void enable(SoState * const state, const SbBool onoff);
    static void set(SoState *const state, SoNode *const node,
                            SoGLShaderProgram * program);
    static SoGLShaderProgram * get(SoState * state);
  
    virtual void push(SoState *);
    virtual void pop(SoState * state, const SoElement *prevTopElement);
  
    virtual SbBool matches(const SoElement * element) const;
    virtual SoElement * copyMatchInfo() const;
  
  SoINTERNAL public:
    static void initClass(void);
    SoGLShaderProgram *shaderProgram;
  
  private:
    virtual ~SoGLShaderProgramElement();
    SbList <uint32_t> objectids;
    SbBool enabled;
  };
  
  #endif /* ! COIN_SOSHADERPROGRAMELEMENT_H */
  