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/*
* $Id$
* ***** 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.
*
* This is a new part of Blender.
*
* Contributor(s): Jacques Guignot RIP 2005,
* Stephen Swaney
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#include "BezTriple.h" /*This must come first */
#include "DNA_ipo_types.h"
#include "MEM_guardedalloc.h"
#include "gen_utils.h"
/***************************************************************************
Python API function prototypes for the BezTriple module.
***************************************************************************/
static PyObject *M_BezTriple_New( PyObject * self, PyObject * args );
static PyObject *M_BezTriple_Get( PyObject * self, PyObject * args );
/*************************************
Doc strings for the BezTriple module
*************************************/
static char M_BezTriple_doc[] = "The Blender BezTriple module\n";
/****************************************************************************
Python BPy_BezTriple instance methods declarations:
****************************************************************************/
static PyObject *BezTriple_setPoints( BPy_BezTriple * self, PyObject * args );
static PyObject *BezTriple_getPoints( BPy_BezTriple * self );
static PyObject *BezTriple_getTriple( BPy_BezTriple * self );
/****************************************************************************
Python BezTriple_Type callback function prototypes:
*****************************************************************************/
static void BezTripleDeAlloc( BPy_BezTriple * self );
static int BezTripleSetAttr( BPy_BezTriple * self, char *name, PyObject * v );
static PyObject *BezTripleGetAttr( BPy_BezTriple * self, char *name );
static PyObject *BezTripleRepr( BPy_BezTriple * self );
//static PyObject *BezTriple_Str( BPy_BezTriple * self );
/****************************************************************************
Python method structure definition for Blender.BezTriple module:
****************************************************************************/
struct PyMethodDef M_BezTriple_methods[] = {
{"New", ( PyCFunction ) M_BezTriple_New, METH_VARARGS | METH_KEYWORDS,
0},
/* {"New", ( PyCFunction ) M_BezTriple_New, METH_O, 0}, */
{"Get", M_BezTriple_Get, METH_VARARGS, 0},
{"get", M_BezTriple_Get, METH_VARARGS, 0},
{NULL, NULL, 0, NULL}
};
/*****************************************************************************/
/* Python BPy_BezTriple methods table: */
/*****************************************************************************/
static PyMethodDef BPy_BezTriple_methods[] = {
/* name, method, flags, doc */
{"setPoints", ( PyCFunction ) BezTriple_setPoints, METH_VARARGS,
"(str) - Change BezTriple point coordinates"},
{"getPoints", ( PyCFunction ) BezTriple_getPoints, METH_NOARGS,
"() - return BezTriple knot point x and y coordinates"},
{"getTriple", ( PyCFunction ) BezTriple_getTriple, METH_NOARGS,
"() - return list of 3 floating point triplets. order is H1, knot, H2"},
{NULL, NULL, 0, NULL}
};
/*****************************************************************************/
/* Python BezTriple_Type structure definition: */
/*****************************************************************************/
PyTypeObject BezTriple_Type = {
PyObject_HEAD_INIT( NULL ) /* required python macro */
0, /* ob_size */
"BezTriple", /* tp_name */
sizeof( BPy_BezTriple ), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
( destructor ) BezTripleDeAlloc, /* tp_dealloc */
0, /* tp_print */
( getattrfunc ) BezTripleGetAttr, /* tp_getattr */
( setattrfunc ) BezTripleSetAttr, /* tp_setattr */
0, /* tp_compare */
( reprfunc ) BezTripleRepr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_as_hash */
0, /* tp_call */
0, /* ( reprfunc) BezTriple_Str, tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
0, /* tp_flags */
0, /* tp_doc */
0, 0, 0, 0, 0, 0,
BPy_BezTriple_methods, /* tp_methods */
0, /* tp_members */
0, /* tm_getset */
0
};
/****************************************************************************
Function: M_BezTriple_New
Python equivalent: Blender.BezTriple.New
****************************************************************************/
static PyObject *M_BezTriple_New( PyObject* self, PyObject * args )
{
float numbuf[9];
int status, length;
PyObject* in_args = NULL;
if( !PyArg_ParseTuple( args, "|O", &in_args) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected sequence of 3 or 9 floats or nothing" );
if( !in_args ) {
numbuf[0] = 0.0f; numbuf[1] = 0.0f; numbuf[2] = 0.0f;
numbuf[3] = 0.0f; numbuf[4] = 0.0f; numbuf[5] = 0.0f;
numbuf[6] = 0.0f; numbuf[7] = 0.0f; numbuf[8] = 0.0f;
} else {
if( !PySequence_Check( in_args ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected sequence of 3 or 9 floats or nothing" );
length = PySequence_Length( in_args );
if( length == 9 )
status = PyArg_ParseTuple( in_args, "fffffffff",
&numbuf[0], &numbuf[1], &numbuf[2],
&numbuf[3], &numbuf[4], &numbuf[5],
&numbuf[6], &numbuf[7], &numbuf[8]);
else if( length == 3 ) {
status = PyArg_ParseTuple( in_args, "fff",
&numbuf[0], &numbuf[1], &numbuf[2]);
numbuf[3] = numbuf[0]; numbuf[6] = numbuf[0];
numbuf[4] = numbuf[1]; numbuf[7] = numbuf[1];
numbuf[5] = numbuf[2]; numbuf[8] = numbuf[2];
} else
return EXPP_ReturnPyObjError( PyExc_TypeError,
"wrong number of points" );
if( !status )
return EXPP_ReturnPyObjError( PyExc_AttributeError,
"sequence item not number");
}
return newBezTriple( numbuf );
}
/****************************************************************************
Function: M_BezTriple_Get
Python equivalent: Blender.BezTriple.Get
Description: Receives a string and returns the ipo data obj
whose name matches the string. If no argument is
passed in, a list of all ipo data names in the
current scene is returned.
****************************************************************************/
static PyObject *M_BezTriple_Get( PyObject * self, PyObject * args )
{
return 0;
}
/****************************************************************************
Function: BezTripleDeAlloc
Description: This is a callback function for the BPy_BezTriple type. It is
the destructor function.
****************************************************************************/
static void BezTripleDeAlloc( BPy_BezTriple * self )
{
if( self->own_memory)
MEM_freeN( self->beztriple );
PyObject_DEL( self );
}
static PyObject *BezTriple_getPoints( BPy_BezTriple * self )
{
struct BezTriple *bezt = self->beztriple;
PyObject *l = PyList_New( 0 );
int i;
for( i = 0; i < 2; i++ ) {
PyList_Append( l, PyFloat_FromDouble( bezt->vec[1][i] ) );
}
return l;
}
/*
* BezTriple_getTriple
*
* get the coordinate data for a BezTriple.
* returns a list of 3 points.
* list order is handle1, knot, handle2.
* each point consists of a list of x,y,z float values.
*/
static PyObject *BezTriple_getTriple( BPy_BezTriple * self )
{
int i;
struct BezTriple *bezt = self->beztriple;
PyObject *retlist = PyList_New( 0 );
PyObject *point;
for( i = 0; i < 3; i++ ) {
point = Py_BuildValue( "[fff]",
bezt->vec[i][0],
bezt->vec[i][1], bezt->vec[i][2] );
PyList_Append( retlist, point );
}
return retlist;
}
static PyObject *BezTriple_setPoints( BPy_BezTriple * self, PyObject * args )
{
int i;
struct BezTriple *bezt = self->beztriple;
PyObject *popo = 0;
if( !PyArg_ParseTuple( args, "O", &popo ) )
return ( EXPP_ReturnPyObjError
( PyExc_TypeError, "expected sequence argument" ) );
if( PySequence_Check( popo ) == 0 ) {
puts( "error in BezTriple_setPoints - expected sequence" );
Py_INCREF( Py_None );
return Py_None;
}
{
/*
some debug stuff
this will become an overloaded args check
*/
int size = PySequence_Size( popo );
printf( "\n dbg: sequence size is %d\n", size );
}
for( i = 0; i < 2; i++ ) {
PyObject *o = PySequence_GetItem( popo, i );
if( !o )
printf( "\n bad o. o no!\n" );
/* bezt->vec[1][i] = PyFloat_AsDouble (PyTuple_GetItem (popo, i)); */
bezt->vec[1][i] = (float)PyFloat_AsDouble( o );
bezt->vec[0][i] = bezt->vec[1][i] - 1;
bezt->vec[2][i] = bezt->vec[1][i] + 1;
}
/* experimental fussing with handles - ipo.c: calchandles_ipocurve */
if( bezt->vec[0][0] > bezt->vec[1][0] )
bezt->vec[0][0] = bezt->vec[1][0];
if( bezt->vec[2][0] < bezt->vec[1][0] )
bezt->vec[2][0] = bezt->vec[1][0];
Py_INCREF( Py_None );
return Py_None;
}
/*****************************************************************************/
/* Function: BezTripleGetAttr */
/* Description: This is a callback function for the BPy_BezTriple type. It */
/* taccesses BPy_BezTriple "member variables" and methods. */
/*****************************************************************************/
static PyObject *BezTripleGetAttr( BPy_BezTriple * self, char *name )
{
if( strcmp( name, "pt" ) == 0 )
return BezTriple_getPoints( self );
else if( strcmp( name, "vec" ) == 0 )
return BezTriple_getTriple( self );
else if( strcmp( name, "tilt" ) == 0 )
return PyFloat_FromDouble(self->beztriple->alfa);
else if( strcmp( name, "hide" ) == 0 )
return PyFloat_FromDouble(self->beztriple->hide);
else if( strcmp( name, "__members__" ) == 0 )
return Py_BuildValue( "[s,s,s]", "pt", "vec", "tilt" );
/* look for default methods */
return Py_FindMethod( BPy_BezTriple_methods, ( PyObject * ) self, name );
}
/*****************************************************************************/
/* Function: BezTripleSetAttr */
/* Description: This is a callback function for the BPy_BezTriple type. It */
/* sets BezTriple Data attributes (member variables). */
/*****************************************************************************/
static int BezTripleSetAttr( BPy_BezTriple * self, char *name, PyObject * value )
{
#if 0
/*
this does not work at the moment: Wed Apr 7 2004
when the necessary code to make pt act like a sequence is
available, it will be reenabled
*/
if( strcmp( name, "pt" ) == 0 )
BezTriple_setPoints( self, value );
return 0; /* normal exit */
#endif
if( !strcmp( name, "hide" ) ) {
int param;
if( !PyInt_CheckExact( value ) )
return EXPP_ReturnIntError( PyExc_TypeError,
"expected int argument" );
param = (int)PyInt_AS_LONG( value );
self->beztriple->hide = (param == 0) ? 0 : IPO_BEZ;
return 0;
}
if( !strcmp( name, "tilt" ) ) {
if (!PyFloat_Check( value ) )
return EXPP_ReturnIntError( PyExc_TypeError, "expected a float" );
self->beztriple->alfa = (float)PyFloat_AsDouble( value );
return 0;
}
return EXPP_ReturnIntError( PyExc_AttributeError,
"cannot set a read-only attribute" );
}
/*****************************************************************************/
/* Function: BezTripleRepr */
/* Description: This is a callback function for the BPy_BezTriple type. It */
/* builds a meaninful string to represent BezTriple objects. */
/*****************************************************************************/
static PyObject *BezTripleRepr( BPy_BezTriple * self )
{
/* float vec[3][3];
float alfa;
short s[3][2];
short h1, h2;
char f1, f2, f3, hide;
*/
char str[1000];
sprintf( str,
"BezTriple (%f %f) (%f %f) (%f %f) %f\n (%d %d %d) (%d %d) %d\n",
self->beztriple->vec[0][0], self->beztriple->vec[0][1],
self->beztriple->vec[1][0], self->beztriple->vec[1][1],
self->beztriple->vec[2][0], self->beztriple->vec[2][1],
self->beztriple->alfa,
self->beztriple->h1, self->beztriple->h2, self->beztriple->f1,
self->beztriple->f2, self->beztriple->f3,
self->beztriple->hide );
return PyString_FromString( str );
}
/*
BezTriple_Str
display object as string.
equivalent to python str(o)
*/
/*
static PyObject *BezTriple_Str( BPy_BezTriple * self )
{
BezTriple *p = self->beztriple;
// fixme:
return PyString_FromFormat(
"BezTriple (%f %f %f) (%f %f %f) (%f %f %f) alpha %f\n h1:%d h2:%d f1:%d f2:%d f3:%d hide:%d",
p->vec[0][0], p->vec[0][1], p->vec[0][2],
p->vec[1][0], p->vec[1][1], p->vec[1][2],
p->vec[2][0], p->vec[2][1], p->vec[2][2],
p->alfa,
p->h1, p->h2, p->f1,
p->f2, p->f3,
p->hide );
}
*/
/*
BezTriple_Init
*/
PyObject *BezTriple_Init( void )
{
PyObject *submodule;
BezTriple_Type.ob_type = &PyType_Type;
submodule = Py_InitModule3( "Blender.BezTriple",
M_BezTriple_methods,
M_BezTriple_doc );
return submodule;
}
/* Three Python BezTriple_Type helper functions needed by the Object module: */
/****************************************************************************
Function: BezTriple_CreatePyObject
Description: This function will create a new BPy_BezTriple from an existing
Blender ipo structure.
****************************************************************************/
PyObject *BezTriple_CreatePyObject( BezTriple * bzt )
{
BPy_BezTriple *pybeztriple;
pybeztriple =
( BPy_BezTriple * ) PyObject_NEW( BPy_BezTriple, &BezTriple_Type );
if( !pybeztriple )
return EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create BPy_BezTriple object" );
pybeztriple->beztriple = bzt;
pybeztriple->own_memory = 0;
return ( PyObject * ) pybeztriple;
}
/*****************************************************************************/
/* Function: BezTriple_CheckPyObject */
/* Description: This function returns true when the given PyObject is of the */
/* type BezTriple. Otherwise it will return false. */
/*****************************************************************************/
int BezTriple_CheckPyObject( PyObject * pyobj )
{
return ( pyobj->ob_type == &BezTriple_Type );
}
/*****************************************************************************/
/* Function: BezTriple_FromPyObject */
/* Description: This function returns the Blender beztriple from the given */
/* PyObject. */
/*****************************************************************************/
BezTriple *BezTriple_FromPyObject( PyObject * pyobj )
{
return ( ( BPy_BezTriple * ) pyobj )->beztriple;
}
/*
Create a new BezTriple
input args is a sequence - either 3 or 9 floats
*/
PyObject *newBezTriple( float *numbuf )
{
int i, j, num;
PyObject *pyobj = NULL;
BezTriple *bzt = NULL;
/* create our own beztriple data */
bzt = MEM_callocN( sizeof( BezTriple ), "new bpytriple");
/* check malloc */
if( !bzt )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"MEM_callocN failed");
/* copy the data */
num = 0;
for( i = 0; i < 3; i++ ) {
for( j = 0; j < 3; j++) {
bzt->vec[i][j] = numbuf[num++];
}
}
bzt->h1 = HD_ALIGN;
bzt->h2 = HD_ALIGN;
/* wrap it */
pyobj = BezTriple_CreatePyObject( bzt );
/* we own it. must free later */
( ( BPy_BezTriple * )pyobj)->own_memory = 1;
return pyobj;
}
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