SoSelectOne.h

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#ifndef COIN_SOSELECTONE_H
#define COIN_SOSELECTONE_H
 
#include <Inventor/engines/SoSubEngine.h>
#include <Inventor/fields/SoMField.h>
#include <Inventor/fields/SoSFInt32.h>
 
class SoEngineOutput;
 
 
class COIN_DLL_API SoSelectOne : public SoEngine {
  typedef SoEngine inherited;
 
  SO_ENGINE_HEADER(SoSelectOne);
 
public:
  SoSFInt32 index;
  SoMField * input;
 
  SoEngineOutput * output; // The SoSField-version of the SoMField-type.
 
  SoSelectOne(SoType inputtype);
  static void initClass(void);
 
private:
  SoSelectOne(void);
  virtual ~SoSelectOne(void);
 
  virtual void evaluate(void);
 
  virtual SbBool readInstance(SoInput * in, unsigned short flags);
  virtual void writeInstance(SoOutput * out);
 
  void initialize(const SoType inputfieldtype);
 
  virtual void copyContents(const SoFieldContainer * from,
                            SbBool copyconnections);
 
  // SoSelectOne instances uses a dynamic set of inputs and outputs,
  // as they are not common for all instances of the class (like for
  // most of the other engines).
  SoFieldData * dynamicinput;
  SoEngineOutputData * dynamicoutput;
 
  // Avoid a g++/egcs warning on the private default constructor.
  friend class dummy;
};
 
#endif // !COIN_SOSELECTONE_H