/*
 * ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file source/blender/freestyle/intern/python/Interface0D/BPy_CurvePoint.cpp
 *  \ingroup freestyle
 */

#include "BPy_CurvePoint.h"

#include "../BPy_Convert.h"
#include "../Interface0D/BPy_SVertex.h"

#ifdef __cplusplus
extern "C" {
#endif

///////////////////////////////////////////////////////////////////////////////////////////

/*----------------------CurvePoint methods----------------------------*/

PyDoc_STRVAR(CurvePoint_doc,
"Class hierarchy: :class:`Interface0D` > :class:`CurvePoint`\n"
"\n"
"Class to represent a point of a curve.  A CurvePoint can be any point\n"
"of a 1D curve (it doesn't have to be a vertex of the curve).  Any\n"
":class:`Interface1D` is built upon ViewEdges, themselves built upon\n"
"FEdges.  Therefore, a curve is basically a polyline made of a list of\n"
":class:`SVertex` objects.  Thus, a CurvePoint is built by linearly\n"
"interpolating two :class:`SVertex` instances.  CurvePoint can be used\n"
"as virtual points while querying 0D information along a curve at a\n"
"given resolution.\n"
"\n"
".. method:: __init__()\n"
"\n"
"   Defult constructor.\n"
"\n"
".. method:: __init__(brother)\n"
"\n"
"   Copy constructor.\n"
"\n"
"   :arg brother: A CurvePoint object.\n"
"   :type brother: :class:`CurvePoint`\n"
"\n"
".. method:: __init__(first_vertex, second_vertex, t2d)\n"
"\n"
"   Builds a CurvePoint from two SVertex objects and an interpolation parameter.\n"
"\n"
"   :arg first_vertex: The first SVertex.\n"
"   :type first_vertex: :class:`SVertex`\n"
"   :arg second_vertex: The second SVertex.\n"
"   :type second_vertex: :class:`SVertex`\n"
"   :arg t2d: A 2D interpolation parameter used to linearly interpolate\n"
"             first_vertex and second_vertex.\n"
"   :type t2d: float\n"
"\n"
".. method:: __init__(first_point, second_point, t2d)\n"
"\n"
"   Builds a CurvePoint from two CurvePoint objects and an interpolation\n"
"   parameter.\n"
"\n"
"   :arg first_point: The first CurvePoint.\n"
"   :type first_point: :class:`CurvePoint`\n"
"   :arg second_point: The second CurvePoint.\n"
"   :type second_point: :class:`CurvePoint`\n"
"   :arg t2d: The 2D interpolation parameter used to linearly interpolate\n"
"             first_point and second_point.\n"
"   :type t2d: float");

static int CurvePoint_init(BPy_CurvePoint *self, PyObject *args, PyObject *kwds)
{
	static const char *kwlist_1[] = {"brother", NULL};
	static const char *kwlist_2[] = {"first_vertex", "second_vertex", "t2d", NULL};
	static const char *kwlist_3[] = {"first_point", "second_point", "t2d", NULL};
	PyObject *obj1 = 0, *obj2 = 0;
	float t2d;

	if (PyArg_ParseTupleAndKeywords(args, kwds, "|O!", (char **)kwlist_1, &CurvePoint_Type, &obj1)) {
		if (!obj1)
			self->cp = new CurvePoint();
		else
			self->cp = new CurvePoint(*(((BPy_CurvePoint *)obj1)->cp));
	}
	else if (PyErr_Clear(),
	         PyArg_ParseTupleAndKeywords(args, kwds, "O!O!f", (char **)kwlist_2,
	                                     &SVertex_Type, &obj1, &SVertex_Type, &obj2, &t2d))
	{
		self->cp = new CurvePoint(((BPy_SVertex *)obj1)->sv, ((BPy_SVertex *)obj2)->sv, t2d);
	}
	else if (PyErr_Clear(),
	         PyArg_ParseTupleAndKeywords(args, kwds, "O!O!f", (char **)kwlist_3,
	                                     &CurvePoint_Type, &obj1, &CurvePoint_Type, &obj2, &t2d))
	{
		CurvePoint *cp1 = ((BPy_CurvePoint *)obj1)->cp;
		CurvePoint *cp2 = ((BPy_CurvePoint *)obj2)->cp;
		if (!cp1 || cp1->A() == 0 || cp1->B() == 0) {
			PyErr_SetString(PyExc_TypeError, "argument 1 is an invalid CurvePoint object");
			return -1;
		}
		if (!cp2 || cp2->A() == 0 || cp2->B() == 0) {
			PyErr_SetString(PyExc_TypeError, "argument 2 is an invalid CurvePoint object");
			return -1;
		}
		self->cp = new CurvePoint(cp1, cp2, t2d);
	}
	else {
		PyErr_SetString(PyExc_TypeError, "invalid argument(s)");
		return -1;
	}
	self->py_if0D.if0D = self->cp;
	self->py_if0D.borrowed = false;
	return 0;
}

///bool 	operator== (const CurvePoint &b)

/*----------------------CurvePoint get/setters ----------------------------*/

PyDoc_STRVAR(CurvePoint_first_svertex_doc,
"The first SVertex upon which the CurvePoint is built.\n"
"\n"
":type: :class:`SVertex`");

static PyObject *CurvePoint_first_svertex_get(BPy_CurvePoint *self, void *UNUSED(closure))
{
	SVertex *A = self->cp->A();
	if (A)
		return BPy_SVertex_from_SVertex(*A);
	Py_RETURN_NONE;
}

static int CurvePoint_first_svertex_set(BPy_CurvePoint *self, PyObject *value, void *UNUSED(closure))
{
	if (!BPy_SVertex_Check(value)) {
		PyErr_SetString(PyExc_TypeError, "value must be an SVertex");
		return -1;
	}
	self->cp->setA(((BPy_SVertex *)value)->sv);
	return 0;
}

PyDoc_STRVAR(CurvePoint_second_svertex_doc,
"The second SVertex upon which the CurvePoint is built.\n"
"\n"
":type: :class:`SVertex`");

static PyObject *CurvePoint_second_svertex_get(BPy_CurvePoint *self, void *UNUSED(closure))
{
	SVertex *B = self->cp->B();
	if (B)
		return BPy_SVertex_from_SVertex(*B);
	Py_RETURN_NONE;
}

static int CurvePoint_second_svertex_set(BPy_CurvePoint *self, PyObject *value, void *UNUSED(closure))
{
	if (!BPy_SVertex_Check(value)) {
		PyErr_SetString(PyExc_TypeError, "value must be an SVertex");
		return -1;
	}
	self->cp->setB(((BPy_SVertex *)value)->sv);
	return 0;
}

PyDoc_STRVAR(CurvePoint_t2d_doc,
"The 2D interpolation parameter.\n"
"\n"
":type: float");

static PyObject *CurvePoint_t2d_get(BPy_CurvePoint *self, void *UNUSED(closure))
{
	return PyFloat_FromDouble(self->cp->t2d());
}

static int CurvePoint_t2d_set(BPy_CurvePoint *self, PyObject *value, void *UNUSED(closure))
{
	float scalar;
	if ((scalar = PyFloat_AsDouble(value)) == -1.0f && PyErr_Occurred()) {
		PyErr_SetString(PyExc_TypeError, "value must be a number");
		return -1;
	}
	self->cp->setT2d(scalar);
	return 0;
}

static PyGetSetDef BPy_CurvePoint_getseters[] = {
	{(char *)"first_svertex", (getter)CurvePoint_first_svertex_get, (setter)CurvePoint_first_svertex_set,
	                          (char *)CurvePoint_first_svertex_doc, NULL},
	{(char *)"second_svertex", (getter)CurvePoint_second_svertex_get, (setter)CurvePoint_second_svertex_set,
	                           (char *)CurvePoint_second_svertex_doc, NULL},
	{(char *)"t2d", (getter)CurvePoint_t2d_get, (setter)CurvePoint_t2d_set, (char *)CurvePoint_t2d_doc, NULL},
	{NULL, NULL, NULL, NULL, NULL}  /* Sentinel */
};

/*-----------------------BPy_CurvePoint type definition ------------------------------*/
PyTypeObject CurvePoint_Type = {
	PyVarObject_HEAD_INIT(NULL, 0)
	"CurvePoint",                   /* tp_name */
	sizeof(BPy_CurvePoint),         /* tp_basicsize */
	0,                              /* tp_itemsize */
	0,                              /* tp_dealloc */
	0,                              /* tp_print */
	0,                              /* tp_getattr */
	0,                              /* tp_setattr */
	0,                              /* tp_reserved */
	0,                              /* tp_repr */
	0,                              /* tp_as_number */
	0,                              /* tp_as_sequence */
	0,                              /* tp_as_mapping */
	0,                              /* tp_hash  */
	0,                              /* tp_call */
	0,                              /* tp_str */
	0,                              /* tp_getattro */
	0,                              /* tp_setattro */
	0,                              /* tp_as_buffer */
	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
	CurvePoint_doc,                 /* tp_doc */
	0,                              /* tp_traverse */
	0,                              /* tp_clear */
	0,                              /* tp_richcompare */
	0,                              /* tp_weaklistoffset */
	0,                              /* tp_iter */
	0,                              /* tp_iternext */
	0,                              /* tp_methods */
	0,                              /* tp_members */
	BPy_CurvePoint_getseters,       /* tp_getset */
	&Interface0D_Type,              /* tp_base */
	0,                              /* tp_dict */
	0,                              /* tp_descr_get */
	0,                              /* tp_descr_set */
	0,                              /* tp_dictoffset */
	(initproc)CurvePoint_init,      /* tp_init */
	0,                              /* tp_alloc */
	0,                              /* tp_new */
};

///////////////////////////////////////////////////////////////////////////////////////////

#ifdef __cplusplus
}
#endif