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/*
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
*
* Contributor(s): Willian P. Germano
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
/* This file is the old bpython opy_vector.c with minor modifications */
#include "vector.h"
/*****************************/
/* Vector Python Object */
/*****************************/
#define VectorObject_Check(v) ((v)->ob_type == &Vector_Type)
static void Vector_dealloc(VectorObject *self)
{
PyMem_DEL(self);
}
static PyObject *Vector_getattr(VectorObject *self, char *name)
{
if (self->size==3 && ELEM3(name[0], 'x', 'y', 'z') && name[1]==0)
return PyFloat_FromDouble(self->vec[ name[0]-'x' ]);
return EXPP_ReturnPyObjError(PyExc_AttributeError, "attribute not found");
}
static int Vector_setattr(VectorObject *self, char *name, PyObject *v)
{
float val;
if (!PyArg_Parse(v, "f", &val))
return EXPP_ReturnIntError(PyExc_TypeError,
"expected float argument");
if (self->size==3 && ELEM3(name[0], 'x', 'y', 'z') && name[1]==0)
self->vec[ name[0]-'x' ]= val;
else
return -1;
return 0;
}
/* Vectors Sequence methods */
static int Vector_len(VectorObject *self)
{
return self->size;
}
static PyObject *Vector_item(VectorObject *self, int i)
{
if (i < 0 || i >= self->size)
return EXPP_ReturnPyObjError (PyExc_IndexError,
"array index out of range");
return Py_BuildValue("f", self->vec[i]);
}
static PyObject *Vector_slice(VectorObject *self, int begin, int end)
{
PyObject *list;
int count;
if (begin < 0) begin= 0;
if (end > self->size) end= self->size;
if (begin > end) begin= end;
list= PyList_New(end-begin);
for (count = begin; count < end; count++)
PyList_SetItem(list, count-begin, PyFloat_FromDouble(self->vec[count]));
return list;
}
static int Vector_ass_item(VectorObject *self, int i, PyObject *ob)
{
if (i < 0 || i >= self->size)
return EXPP_ReturnIntError(PyExc_IndexError,
"array assignment index out of range");
if (!PyNumber_Check(ob))
return EXPP_ReturnIntError(PyExc_IndexError,
"vector member must be a number");
self->vec[i]= PyFloat_AsDouble(ob);
return 0;
}
static int Vector_ass_slice(VectorObject *self, int begin, int end, PyObject *seq)
{
int count;
if (begin < 0) begin= 0;
if (end > self->size) end= self->size;
if (begin > end) begin= end;
if (!PySequence_Check(seq))
return EXPP_ReturnIntError(PyExc_TypeError,
"illegal argument type for built-in operation");
if (PySequence_Length(seq) != (end - begin))
return EXPP_ReturnIntError(PyExc_TypeError,
"size mismatch in slice assignment");
for (count = begin; count < end; count++) {
PyObject *ob = PySequence_GetItem(seq, count);
if (!PyArg_Parse(ob, "f", &self->vec[count])) {
Py_DECREF(ob);
return -1;
}
Py_DECREF(ob);
}
return 0;
}
PyObject *EXPP_tuple_repr(PyObject *self, int size)
{
PyObject *repr, *comma, *item;
int i;
/*@ note: a value must be built because the list is decrefed!
* otherwise we have nirvana pointers inside python.. */
repr = PyString_FromString("(");
if (!repr) return 0;
item = PySequence_GetItem(self, 0);
PyString_ConcatAndDel(&repr, PyObject_Repr(item));
Py_DECREF(item);
comma = PyString_FromString(", ");
for (i = 1; i < size; i++) {
PyString_Concat(&repr, comma);
item = PySequence_GetItem(self, i);
PyString_ConcatAndDel(&repr, PyObject_Repr(item));
Py_DECREF(item);
}
PyString_ConcatAndDel(&repr, PyString_FromString(")"));
Py_DECREF(comma);
return repr;
}
static PyObject *Vector_repr (VectorObject *self)
{
return EXPP_tuple_repr((PyObject *) self, self->size);
}
static PySequenceMethods Vector_SeqMethods =
{
(inquiry) Vector_len, /* sq_length */
(binaryfunc) 0, /* sq_concat */
(intargfunc) 0, /* sq_repeat */
(intargfunc) Vector_item, /* sq_item */
(intintargfunc) Vector_slice, /* sq_slice */
(intobjargproc) Vector_ass_item, /* sq_ass_item */
(intintobjargproc) Vector_ass_slice, /* sq_ass_slice */
};
PyTypeObject Vector_Type =
{
PyObject_HEAD_INIT(&PyType_Type)
0, /*ob_size*/
"Vector", /*tp_name*/
sizeof(VectorObject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
(destructor) Vector_dealloc, /*tp_dealloc*/
(printfunc) 0, /*tp_print*/
(getattrfunc) Vector_getattr, /*tp_getattr*/
(setattrfunc) Vector_setattr, /*tp_setattr*/
0, /*tp_compare*/
(reprfunc) Vector_repr, /*tp_repr*/
0, /*tp_as_number*/
&Vector_SeqMethods, /*tp_as_sequence*/
};
PyObject *newVectorObject(float *vec, int size)
{
VectorObject *self;
self= PyObject_NEW(VectorObject, &Vector_Type);
self->vec= vec;
self->size= size;
return (PyObject*) self;
}
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