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/**
* $Id$
*
* ***** BEGIN GPL 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.
*
* 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.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
* Initialize Python thingies.
*/
#ifndef __KX_PYMATH_H__
#define __KX_PYMATH_H__
#include "MT_Point2.h"
#include "MT_Point3.h"
#include "MT_Vector2.h"
#include "MT_Vector3.h"
#include "MT_Vector4.h"
#include "MT_Matrix3x3.h"
#include "MT_Matrix4x4.h"
#include "KX_Python.h"
inline unsigned int Size(const MT_Matrix4x4&) { return 4; }
inline unsigned int Size(const MT_Matrix3x3&) { return 3; }
inline unsigned int Size(const MT_Tuple2&) { return 2; }
inline unsigned int Size(const MT_Tuple3&) { return 3; }
inline unsigned int Size(const MT_Tuple4&) { return 4; }
/**
* Converts the given python matrix to an MT class.
*/
template<class T>
bool PyMatTo(PyObject* pymat, T& mat)
{
bool noerror = true;
mat.setIdentity();
if (PySequence_Check(pymat))
{
unsigned int rows = PySequence_Size(pymat);
if (rows != Size(mat))
return false;
for (unsigned int y = 0; noerror && y < Size(mat); y++)
{
PyObject *pyrow = PySequence_GetItem(pymat, y); /* new ref */
if (!PyErr_Occurred() && PySequence_Check(pyrow))
{
unsigned int cols = PySequence_Size(pyrow);
if (cols != Size(mat))
noerror = false;
else
{
for( unsigned int x = 0; x < Size(mat); x++)
{
PyObject *item = PySequence_GetItem(pyrow, x); /* new ref */
mat[y][x] = PyFloat_AsDouble(item);
Py_DECREF(item);
}
}
} else
noerror = false;
Py_DECREF(pyrow);
}
} else
noerror = false;
if (noerror==false)
PyErr_SetString(PyExc_TypeError, "could not be converted to a matrix (sequence of sequences)");
return noerror;
}
/**
* Converts a python list to a MT class.
*/
template<class T>
bool PyVecTo(PyObject* pyval, T& vec)
{
if (PySequence_Check(pyval))
{
unsigned int numitems = PySequence_Size(pyval);
if (numitems != Size(vec)) {
char err[128];
sprintf(err, "error setting vector, %d args, should be %d", numitems, Size(vec));
PyErr_SetString(PyExc_AttributeError, err);
return false;
}
for (unsigned int x = 0; x < numitems; x++)
{
PyObject *item = PySequence_GetItem(pyval, x); /* new ref */
vec[x] = PyFloat_AsDouble(item);
Py_DECREF(item);
}
if (PyErr_Occurred()) {
PyErr_SetString(PyExc_AttributeError, "one or more of the items in the sequence was not a float");
return false;
}
return true;
} else
{
char err[128];
sprintf(err, "not a sequence type, expected a sequence of numbers size %d", Size(vec));
PyErr_SetString(PyExc_AttributeError, err);
}
return false;
}
/**
* Converts an MT_Matrix4x4 to a python object.
*/
PyObject* PyObjectFrom(const MT_Matrix4x4 &mat);
/**
* Converts an MT_Matrix3x3 to a python object.
*/
PyObject* PyObjectFrom(const MT_Matrix3x3 &mat);
/**
* Converts an MT_Tuple2 to a python object.
*/
PyObject* PyObjectFrom(const MT_Tuple2 &vec);
/**
* Converts an MT_Tuple3 to a python object
*/
PyObject* PyObjectFrom(const MT_Tuple3 &vec);
/**
* Converts an MT_Tuple4 to a python object.
*/
PyObject* PyObjectFrom(const MT_Tuple4 &pos);
/**
* True if the given PyObject can be converted to an MT_Matrix
* @param rank = 3 (for MT_Matrix3x3) or 4 (for MT_Matrix4x4)
*/
bool PyObject_IsMT_Matrix(PyObject *pymat, unsigned int rank);
#endif
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