SoPolygonLayerElement.h

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// Copyright (c) Fraunhofer MEVIS, Germany. All rights reserved.
// **InsertLicense** code
/*
 *
 _______________________________________________________________________
 ____________  W W W .   A W A K E   I D E A S   . C O M  ______________
 |
 |
 |   Description:
 |   ...
 |
 |   Author(s)      : Felix Ritter
 |
 ____________  W W W .   A W A K E   I D E A S   . C O M  ______________
 _______________________________________________________________________
 */
 
#ifndef  _SoPolygonLayerElement_H
#define  _SoPolygonLayerElement_H
 
#include "SoShadowSystem.h"
#include "Inventor/datastructs/SbSet.h"
#include <functional>
 
__MEVIS_IV_BEGIN_NAMESPACE
 
struct ltSbPolygonLayerId;
 
class SOSHADOW_CLASS_SPEC SbPolygonLayer
{
   friend class SoPolygonLayerElement;
   friend class SbSet<SbPolygonLayer, ltSbPolygonLayerId>;
 
   public:
      SbString id;
      
      float factor;
      float units;
      
      SbPolygonLayer(const SbString &_id="", float _factor=0.f, float _units=0.f) {
         id= _id; factor= _factor; units= _units;
      }
 
      SbPolygonLayer(const SbPolygonLayer& layer) {
        *this = layer;
      }
 
      SbPolygonLayer &operator =(const SbPolygonLayer &layer) {
         id= layer.id; factor= layer.factor; units= layer.units;
         return *this;
      }
 
};
 
struct ltSbPolygonLayerId 
{
   bool operator()(const SbPolygonLayer &x, const SbPolygonLayer &y) const { return strcmp(x.id.getString(), y.id.getString()) < 0; }
};
 
class SOSHADOW_CLASS_SPEC SoPolygonLayerElement : public SoAccumulatedElement
{
   typedef SoAccumulatedElement inherited;
 
   SO_ELEMENT_HEADER(SoPolygonLayerElement);
 
   public:
      void      init(SoState *state) override;
 
      static void       add(SoState *state, SoNode *node, const SbPolygonLayer &layer);
 
      void      push(SoState *state) override;
 
      static const SbSet<SbPolygonLayer, ltSbPolygonLayerId> &get(SoState *state);
      
      static const SbPolygonLayer &getWithId(SoState *state, const SbString &id);
      static const SbPolygonLayer &getTop(SoState *state);
      static const SbPolygonLayer &getBottom(SoState *state);
 
   protected:
      SbSet<SbPolygonLayer, ltSbPolygonLayerId> _layer;
      SbSet<SbPolygonLayer, ltSbPolygonLayerId>::const_iterator _top;
      SbSet<SbPolygonLayer, ltSbPolygonLayerId>::const_iterator _bottom;
      
      virtual ~SoPolygonLayerElement();
 
   SoINTERNAL public:
      static void initClass(void);
   
};
 
__MEVIS_IV_END_NAMESPACE
 
#endif  // _SoPolygonLayerElement_H