SoMFEnum.h

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/*=======================================================================
 * Copyright 1991-1996, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED
 *
 * UNPUBLISHED -- Rights reserved under the copyright laws of the United
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 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
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 * Supplement.  Contractor/manufacturer is Silicon Graphics, Inc.,
 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
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**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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 ***                        BORDEAUX, FRANCE                                        ***
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_MF_ENUM_
#define  _SO_MF_ENUM_
 
#include <Inventor/SbString.h>
#include <Inventor/errors/SoDebugError.h>
#include <Inventor/fields/SoSubField.h>
 
//
//  SoMFEnum subclass of SoMField. This field holds enumerated types.
//  Each instance of the field must define enumeration mnemonics and
//  character strings. This stores the enumeration values as integers
//  (as allowed by C++).
//
 
class  SoMFEnum : public SoMField {
 
  // Use standard field stuff
  SO_MFIELD_HEADER(SoMFEnum, int, int);
  SO_MFIELD_SETVALUESPOINTER_HEADER(int);
 
    public:
  //
  // Some convenience functions:
  //
 
  void setValue(const SbName &name);
 
  void getEnums(int &num, int *&vals, SbName *&names);
 
  void set1Value(int index, const SbName &name);
 
 private:
  // Sets up value/name correspondances
  void setEnums(int num, int *vals, SbName *names);
 
 private:
  static void initClass();
  static void exitClass();
 
 private:
  // TRUE if setEnums called
  bool legalValuesSet;
 
  // Number of enumeration values
  int numEnums;
 
  // Enumeration values
  int *enumValues;
 
  // Mnemonic names of values
  SbName *enumNames;
 
  // Looks up enum name, returns value. Returns FALSE if not found.
  virtual SbBool findEnumValue(const SbName &name, int &val);
 
  // Looks up enum value, returns ptr to name. Returns FALSE if not found.
  virtual SbBool findEnumName(int val, const SbName *&name) const;
 
};
 
 
//
//  Debugging macros (used by other macros in this file)
//  The container must have a field 'firstInstance'.
//
#if defined(_DEBUG)
#  define SO__MF_ENUM_CHECK_DATA(vals, typeName, fieldName, containerMacroName) { \
  if (vals == NULL && firstInstance) { \
    SoDebugError::post("SO_SET_MF_ENUM_TYPE", \
                       "Field %s (%s, line %d): Did you forget to" \
                       " use SO_%s_DEFINE_ENUM_VALUE(%s, ...)?", \
                       fieldName, __FILE__, __LINE__, \
                       containerMacroName, typeName); \
  } \
}
#else
#  define SO__MF_ENUM_CHECK_DATA(vals, typeName, fieldName, containerMacroName) ;
#endif
        
 
//
// This defines the specific type of enum expected by a particular
// SoMFEnum field.
//
 
#define SO__MF_ENUM_SET_TYPE(fieldName, enumType, contMacroName, contData) { \
  int _so_mf_enum_num; \
  int *_so_mf_enum_vals; \
  SbName *_so_mf_enum_names; \
  contData->getEnumData((char *)SO__QUOTE(enumType), \
                        _so_mf_enum_num, \
                        _so_mf_enum_vals, \
                        _so_mf_enum_names); \
  SO__MF_ENUM_CHECK_DATA(_so_mf_enum_vals, \
                         SO__QUOTE(enumType), \
                         SO__QUOTE(fieldName), \
                         contMacroName); \
  fieldName.setEnums(_so_mf_enum_num, \
                     _so_mf_enum_vals, \
                     _so_mf_enum_names); \
}
 
#define SO_NODE_SET_MF_ENUM_TYPE(fieldName, enumType) \
  SO__MF_ENUM_SET_TYPE(fieldName,enumType,"NODE",fieldData)
 
#define SO_ENGINE_SET_MF_ENUM_TYPE(fieldName, enumType) \
  SO__MF_ENUM_SET_TYPE(fieldName,enumType,"ENGINE",inputData)
 
//
// End of macros
//
 
#endif /* _SO_MF_ENUM_ */