SoBaseContextObject.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
 
#ifndef SO_CONTEXTED_OBJECT
#define SO_CONTEXTED_OBJECT
 
#include <Inventor/SbBase.h>
#include <Inventor/devices/SoDeviceContextSharedGroup.h>
#include <Inventor/devices/SoDeviceContext.h>
#include <Inventor/threads/SbThreadSpinlock.h>
 
SoEXTENDER_Documented class  SoBaseContextObject
{
 public:
 
  SoBaseContextObject(SoDeviceContextSharedGroup *sharedContextGroup);
 
  void ref();
 
  void unref();
 
  inline SoDeviceContextSharedGroup* getContextSharedGroup() const { return m_sharedContextGroup; }
 
  inline int getRefCount() const { return refCount; } // useful for debugging
 
  virtual void release() {};
 
 private:
 
   virtual bool notifyDelete()
   {
     if ( m_sharedContextGroup )
     {
       SoDeviceContext* ctx = m_sharedContextGroup->getPrimaryContext();
       if ( ctx && ctx->isCurrent() )
         return true; 
     }
     
     return false;
   };
 
   virtual ~SoBaseContextObject();
 
private:
  int refCount;
 
  SbThreadSpinlock m_refMutex;
 
  SoDeviceContextSharedGroup* m_sharedContextGroup;
 
  friend class SoDeviceContextSharedGroup;
};
 
#endif //SO_CONTEXTED_OBJECT