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blender-archive/source/blender/freestyle/intern/python/BinaryPredicate0D.cpp
Maxime Curioni cc1a6b398d soc-2008-mxcurioni: reimplemented the initialization/allocation for base classes. The Python object type tp_new slot is now set to PyType_GenericNew, instead of the former custom functions. As a note, by default, Python does not set this slot: it is therefore mandatory for the base classes. For children classes, only __init__ is needed.
To make our base classes subclasses, the Py_TPFLAGS_BASETYPE flag was added to the object type tp_flags slot.

Finally, I began to implement CurvePoint, descendant of Interface0D. This commit allowed me to verify that my SWIG replacement method works: interfaces are well taken into account by children. For a test, use the following code:

================================

import Blender
from Blender import Freestyle
from Blender.Freestyle import *

print Interface0D()
print CurvePoint()

================================

The __repr__ method is only implemented in Interface0D:

PyObject * Interface0D___repr__(BPy_Interface0D* self)
{
   return PyString_FromFormat("type: %s - address: %p", self->if0D->getExactTypeName().c_str(), self->if0D );}

and the result is of the form:

type: Interface0D - address: 0x18e5ccc0
type: CurvePoint - address: 0x18e473f0

As you can see, the correct getExactTypeName of the class is called.
2008-07-15 05:33:12 +00:00

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#include "BinaryPredicate0D.h"
#include "Convert.h"
#include "Interface0D.h"
#ifdef __cplusplus
extern "C" {
#endif
///////////////////////////////////////////////////////////////////////////////////////////
/*--------------- Python API function prototypes for BinaryPredicate0D instance -----------*/
static int BinaryPredicate0D___init__(BPy_BinaryPredicate0D *self, PyObject *args, PyObject *kwds);
static void BinaryPredicate0D___dealloc__(BPy_BinaryPredicate0D *self);
static PyObject * BinaryPredicate0D___repr__(BPy_BinaryPredicate0D *self);
static PyObject * BinaryPredicate0D_getName( BPy_BinaryPredicate0D *self, PyObject *args);
static PyObject * BinaryPredicate0D___call__( BPy_BinaryPredicate0D *self, PyObject *args);
/*----------------------BinaryPredicate0D instance definitions ----------------------------*/
static PyMethodDef BPy_BinaryPredicate0D_methods[] = {
{"getName", ( PyCFunction ) BinaryPredicate0D_getName, METH_NOARGS, " Returns the string of the name of the binary predicate."},
{"__call__", ( PyCFunction ) BinaryPredicate0D___call__, METH_VARARGS, "BinaryPredicate0DInterface0D, Interface0D . Must be overloaded by inherited classes. It evaluates a relation between two Interface0D." },
{NULL, NULL, 0, NULL}
};
/*-----------------------BPy_BinaryPredicate0D type definition ------------------------------*/
PyTypeObject BinaryPredicate0D_Type = {
PyObject_HEAD_INIT( NULL )
0, /* ob_size */
"BinaryPredicate0D", /* tp_name */
sizeof( BPy_BinaryPredicate0D ), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)BinaryPredicate0D___dealloc__, /* tp_dealloc */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
NULL, /* tp_compare */
(reprfunc)BinaryPredicate0D___repr__, /* tp_repr */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
NULL, /* PySequenceMethods *tp_as_sequence; */
NULL, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
NULL, /* getattrofunc tp_getattro; */
NULL, /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
NULL, /* traverseproc tp_traverse; */
/* delete references to contained objects */
NULL, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
NULL, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
NULL, /* getiterfunc tp_iter; */
NULL, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
BPy_BinaryPredicate0D_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
NULL, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
(initproc)BinaryPredicate0D___init__, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
PyType_GenericNew, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};
//-------------------MODULE INITIALIZATION--------------------------------
PyMODINIT_FUNC BinaryPredicate0D_Init( PyObject *module )
{
if( module == NULL )
return;
if( PyType_Ready( &BinaryPredicate0D_Type ) < 0 )
return;
Py_INCREF( &BinaryPredicate0D_Type );
PyModule_AddObject(module, "BinaryPredicate0D", (PyObject *)&BinaryPredicate0D_Type);
}
//------------------------INSTANCE METHODS ----------------------------------
int BinaryPredicate0D___init__(BPy_BinaryPredicate0D *self, PyObject *args, PyObject *kwds)
{
self->bp0D = new BinaryPredicate0D();
return 0;
}
void BinaryPredicate0D___dealloc__(BPy_BinaryPredicate0D* self)
{
delete self->bp0D;
self->ob_type->tp_free((PyObject*)self);
}
PyObject * BinaryPredicate0D___repr__(BPy_BinaryPredicate0D* self)
{
return PyString_FromFormat("type: %s - address: %p", self->bp0D->getName().c_str(), self->bp0D );
}
PyObject * BinaryPredicate0D_getName( BPy_BinaryPredicate0D *self, PyObject *args)
{
return PyString_FromString( self->bp0D->getName().c_str() );
}
PyObject * BinaryPredicate0D___call__( BPy_BinaryPredicate0D *self, PyObject *args)
{
BPy_Interface0D *obj1, *obj2;
bool b;
if( !PyArg_ParseTuple(args,(char *)"OO:BinaryPredicate0D___call__", &obj1, obj2) ) {
cout << "ERROR: BinaryPredicate0D___call__ " << endl;
return NULL;
}
b = self->bp0D->operator()( *(obj1->if0D) , *(obj2->if0D) );
return PyBool_from_bool( b );
}
///////////////////////////////////////////////////////////////////////////////////////////
#ifdef __cplusplus
}
#endif