#include <HOpcodeHandler.h>
Public Member Functions | |
TK_Status | Clone (BStreamFileToolkit &tk, BBaseOpcodeHandler **handler) const |
TK_Status | Execute (BStreamFileToolkit &tk) |
HTK_Instance (int from_index=0, int from_variant=0, int to_index=0, int to_variant=0, int options=0, float const *xform=0) | |
TK_Status | Interpret (BStreamFileToolkit &tk, ID_Key key, char const *special) |
TK_Status | Interpret (BStreamFileToolkit &tk, ID_Key key, int variant) |
This class complements the read/write functionality implemented in the base class by overloading the Interpret and Execute methods to provide HOOPS/3dGS-specific opcode handling.
Writing: The HOOPS/3dGS database is queried in the Interpret method, and this data is then written to the HSF file by the Write method Reading: The data is read from the HSF file by the Read method, and is mapped to the HOOPS/3dGS scene-graph within the Execute method.
Export/import of additional user-data (which is associated with this HSF object) would typically be done by overloading the Write and Read methods.
HTK_Instance::HTK_Instance | ( | int | from_index = 0 , |
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int | from_variant = 0 , |
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int | to_index = 0 , |
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int | to_variant = 0 , |
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int | options = 0 , |
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float const * | xform = 0 | |||
) |
constructor
TK_Status HTK_Instance::Clone | ( | BStreamFileToolkit & | tk, | |
BBaseOpcodeHandler ** | handler | |||
) | const [virtual] |
Copies the opcode handler
tk | A reference to the BStreamFileToolkit object. | |
handler | A pointer to the opcode handler object. Passed by reference. |
Reimplemented from TK_Instance.
TK_Status HTK_Instance::Execute | ( | BStreamFileToolkit & | tk | ) | [virtual] |
Processes the binary data that has been read for the current object, which involves passing the data to application-specific data structures.
tk | A reference to the BStreamFileToolkit object. |
Reimplemented from BBaseOpcodeHandler.
TK_Status HTK_Instance::Interpret | ( | BStreamFileToolkit & | tk, | |
ID_Key | key, | |||
char const * | special | |||
) | [inline, virtual] |
Extracts graphics data (typically from the application's scene-graph) and maps it to the opcode handler's data members in preparation for writing out an object to the file.
tk | A reference to the BStreamFileToolkit object. | |
key | An identifier to the object (for example, the HOOPS key of a geometry item) | |
special | A string value of particular data |
Reimplemented from BBaseOpcodeHandler.
References BBaseOpcodeHandler::Interpret().
TK_Status HTK_Instance::Interpret | ( | BStreamFileToolkit & | tk, | |
ID_Key | key, | |||
int | variant | |||
) | [virtual] |
Extracts graphics data (typically from the application's scene-graph) and maps it to the opcode handler's data members in preparation for writing out an object to the file.
tk | A reference to the BStreamFileToolkit object. | |
key | An identifier to the object (for example, the HOOPS key of a geometry item) | |
variant | optional specification of an alternate form, such as a Level-of-Detail representation |
Reimplemented from BBaseOpcodeHandler.