SoSubNodeEngine.h
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#ifndef COIN_SOSUBNODEENGINE_H
#define COIN_SOSUBNODEENGINE_H
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/engines/SoSubEngine.h>
#define SO_NODEENGINE_ABSTRACT_HEADER(_class_) \
SO_NODE_ABSTRACT_HEADER(_class_); \
protected: \
static const SoEngineOutputData ** getOutputDataPtr(void); \
public: \
virtual const SoEngineOutputData * getOutputData(void) const; \
private: \
static void atexit_cleanupnodeengine(void); \
static SoEngineOutputData * outputdata; \
static const SoEngineOutputData ** parentoutputdata
#define SO_NODEENGINE_HEADER(_class_) \
SO_NODEENGINE_ABSTRACT_HEADER(_class_); \
public: \
static void * createInstance(void)
#define SO_NODEENGINE_ABSTRACT_SOURCE(_class_) \
SO_NODE_ABSTRACT_SOURCE(_class_); \
SoEngineOutputData * _class_::outputdata = NULL; \
const SoEngineOutputData ** _class_::parentoutputdata = NULL; \
\
const SoEngineOutputData ** \
_class_::getOutputDataPtr(void) \
{ \
return (const SoEngineOutputData**)&_class_::outputdata; \
} \
\
const SoEngineOutputData * \
_class_::getOutputData(void) const \
{ \
return _class_::outputdata; \
} \
\
void \
_class_::atexit_cleanupnodeengine(void) { \
delete _class_::outputdata; \
_class_::outputdata = NULL; \
_class_::parentoutputdata = NULL; \
_class_::classTypeId STATIC_SOTYPE_INIT; \
}
#define SO_NODEENGINE_SOURCE(_class_) \
SO_NODEENGINE_ABSTRACT_SOURCE(_class_); \
\
void * \
_class_::createInstance(void) \
{ \
return new _class_; \
}
#define SO_NODEENGINE_CONSTRUCTOR(_class_) \
do { \
SoBase::staticDataLock(); \
_class_::classinstances++; \
/* Catch attempts to use an engine class which has not been initialized. */ \
assert(_class_::classTypeId != SoType::badType()); \
/* Initialize a inputdata container for the class only once. */ \
if (!_class_::fieldData) { \
_class_::fieldData = \
new SoFieldData(_class_::parentFieldData ? \
*_class_::parentFieldData : NULL); \
_class_::outputdata = \
new SoEngineOutputData(_class_::parentoutputdata ? \
*_class_::parentoutputdata : NULL); \
} \
/* Extension classes from the application programmers should not be */ \
/* considered native. This is important to get the export code to do */ \
/* the Right Thing. */ \
this->isBuiltIn = FALSE; \
SoBase::staticDataUnlock(); \
} WHILE_0
#define PRIVATE_COMMON_NODEENGINE_INIT_CODE(_class_, _classname_, _createfunc_, _parentclass_) \
do { \
/* Make sure we only initialize once. */ \
assert(_class_::classTypeId == SoType::badType() && "don't init() twice!"); \
/* Make sure superclass gets initialized before subclass. */ \
assert(_parentclass_::getClassTypeId() != SoType::badType() && "you forgot init() on parentclass!"); \
\
/* Set up entry in the type system. */ \
_class_::classTypeId = \
SoType::createType(_parentclass_::getClassTypeId(), \
_classname_, \
_createfunc_, \
SoNode::getNextActionMethodIndex()); \
SoNode::incNextActionMethodIndex(); \
\
/* Store parent's fielddata pointer for later use in the constructor. */ \
_class_::parentFieldData = _parentclass_::getFieldDataPtr(); \
_class_::parentoutputdata = _parentclass_::getOutputDataPtr(); \
} WHILE_0
#define SO_NODEENGINE_INIT_CLASS(_class_, _parentclass_, _parentname_) \
do { \
const char * classname = SO__QUOTE(_class_); \
PRIVATE_COMMON_INIT_CODE(_class_, classname, &_class_::createInstance, _parentclass_); \
} WHILE_0
#define SO_NODEENGINE_EXIT_CLASS(_class_) \
_class_::atexit_cleanupnodeengine();
#define SO_NODEENGINE_INIT_ABSTRACT_CLASS(_class_, _parentclass_, _parentname_) \
do { \
const char * classname = SO__QUOTE(_class_); \
PRIVATE_COMMON_INIT_CODE(_class_, classname, NULL, _parentclass_); \
} WHILE_0
#define SO_NODEENGINE_ADD_OUTPUT(_output_, _type_) \
do { \
outputdata->addOutput(this, SO__QUOTE(_output_), \
&this->_output_, \
_type_::getClassTypeId()); \
this->_output_.setNodeContainer(this); \
} WHILE_0
#endif // COIN_SOSUBNODEENGINE_H