Stores runtime type information. More...
#include <Inventor/SoType.h>
Public Member Functions | |
| SbName | getName () const |
| SoType | getParent () const |
| SbBool | isBad () const |
| SbBool | isDerivedFrom (const SoType &t) const |
| SbBool | canCreateInstance () const |
| void * | createInstance (SoType *overrideType=NULL) const |
| bool | operator== (const SoType t) const |
| bool | operator!= (const SoType t) const |
| bool | operator< (const SoType t) const |
Static Public Member Functions | |
| static SoType | fromName (const SbName &name) |
| static SoType | badType () |
| static int | getAllDerivedFrom (const SoType &type, SoTypeList &list) |
Friends | |
| std::ostream & | operator<< (std::ostream &os, const SoType &t) |
Stores runtime type information.
The SoType class keeps track of runtime type information in Open Inventor. Each type is associated with a given name, so lookup is possible in either direction.
Many Open Inventor classes request a unique SoType when they are initialized. This type can then be used to find out the actual class of an instance when only its base class is known, or to obtain an instance of a particular class given its type or name.
Note that the names associated with types of Open Inventor classes do not contain the "So" prefix.
SoAction, SoBase, SoDetail, SoError, SoEvent, SoField
| static SoType SoType::badType | ( | ) | [static] |
Returns an always-illegal type.
Useful for returning errors.
| SbBool SoType::canCreateInstance | ( | ) | const |
Some types are able to create instances; for example, most nodes and engines (those which are not abstract classes) can be created this way.
This method returns TRUE if the type supports such creation.
| void* SoType::createInstance | ( | SoType * | overrideType = NULL |
) | const |
Creates and returns a pointer to an instance of the type.
Returns NULL if an instance could not be created for some reason. The pointer is returned as a generic pointer, but can be cast to the appropriate type.
For example:
SoCube *c = (SoCube *) SoCube::getClassTypeId().createInstance();
is a convoluted way of creating a new instance of an SoCube.
Returns the type associated with the given name.
| static int SoType::getAllDerivedFrom | ( | const SoType & | type, | |
| SoTypeList & | list | |||
| ) | [static] |
Adds all types derived from the given type to the given type list.
Returns the number of types added.
| SbName SoType::getName | ( | ) | const |
Returns the name associated with a type.
| SoType SoType::getParent | ( | ) | const |
Returns the type of the parent class.
| SbBool SoType::isBad | ( | ) | const |
Returns TRUE if the type is a bad type.
Returns TRUE if the type is derived from type t.
| bool SoType::operator!= | ( | const SoType | t | ) | const |
Returns TRUE if this type is not the same as the given type.
| bool SoType::operator< | ( | const SoType | t | ) | const |
Less-than comparison operator that can be used to sort types.
This is pretty useless otherwise.
| bool SoType::operator== | ( | const SoType | t | ) | const |
Returns TRUE if this type is the same as the given type.
| std::ostream& operator<< | ( | std::ostream & | os, | |
| const SoType & | t | |||
| ) | [friend] |
Writes the SoType to the specified output stream.
| unsigned int SoType::data |
| unsigned int SoType::index |
| unsigned int SoType::intValue |
| unsigned int SoType::isPublic |
| struct { ... } SoType::storageStruct |