SmColorGradient.h

#ifndef SMALLCHANGE_COLORGRADIENT_H
#define SMALLCHANGE_COLORGRADIENT_H
 
/**************************************************************************\
 *
 *  This file is part of the SmallChange extension library for Coin.
 *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  ("GPL") version 2 as published by the Free Software Foundation.
 *  See the file LICENSE.GPL at the root directory of this source
 *  distribution for additional information about the GNU GPL.
 *
 *  For using SmallChange with software that can not be combined with the
 *  GNU GPL, and for taking advantage of the additional benefits of our
 *  support services, please contact Systems in Motion about acquiring
 *  a Coin Professional Edition License.
 *
 *  See <URL:http://www.coin3d.org> for  more information.
 *
 *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
 *  <URL:http://www.sim.no>.
 *
\**************************************************************************/
 
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoMFFloat.h>
#include <Inventor/fields/SoMFColor.h>
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/fields/SoSFString.h>
#include <SmallChange/basic.h>
#include <SmallChange/elements/SmColorGradientElement.h>
 
// Avoid problem with Microsoft Visual C++ Win32 API headers (they
// #define RELATIVE/ABSOLUTE in their header files (WINGDI.H)
#ifdef RELATIVE
#undef RELATIVE
#endif // RELATIVE
 
#ifdef ABSOLUTE
#undef ABSOLUTE
#endif // ABSOLUTE
 
 
class SoFieldSensor;
class SoSensor;
 
class SMALLCHANGE_DLL_API SmColorGradient : public SoNode {
  typedef SoNode inherited;
 
  SO_NODE_HEADER(SmColorGradient);
 
public:
  static void initClass(void);
  SmColorGradient(void);
 
  enum Mapping {
    RELATIVE = SmColorGradientElement::RELATIVE,
    ABSOLUTE = SmColorGradientElement::ABSOLUTE
  };
  
  SoSFBool on;
  SoSFEnum mapping;
  SoMFColor color;
  SoMFFloat parameter;
  
  SoSFString filename;
 
  virtual void doAction(SoAction * action);
  virtual void GLRender(SoGLRenderAction * action);
  virtual void callback(SoCallbackAction * action);
 
protected:
  virtual ~SmColorGradient();
  virtual SbBool readInstance(SoInput * in, unsigned short flags);
  virtual void notify(SoNotList * l);
 
private:
  SbBool loadFilename(void);
  SoFieldSensor * filenamesensor;
  static void filenameSensorCB(void * data, SoSensor *);
 
};
 
#endif // !SMALLCHANGE_COLORGRADIENT_H