/*
 * ***** 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.
 *
 * The Original Code is Copyright (C) 2010 Blender Foundation.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file source/blender/freestyle/intern/python/Iterator/BPy_SVertexIterator.cpp
 *  \ingroup freestyle
 */

#include "BPy_SVertexIterator.h"

#include "../BPy_Convert.h"
#include "../Interface0D/BPy_SVertex.h"
#include "../Interface1D/BPy_FEdge.h"

#ifdef __cplusplus
extern "C" {
#endif

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

//------------------------INSTANCE METHODS ----------------------------------

PyDoc_STRVAR(SVertexIterator_doc,
"Class hierarchy: :class:`Iterator` > :class:`SVertexIterator`\n"
"\n"
"Class representing an iterator over :class:`SVertex` of a\n"
":class:`ViewEdge`.  An instance of an SVertexIterator can be obtained\n"
"from a ViewEdge by calling verticesBegin() or verticesEnd().\n"
"\n"
".. method:: __init__()\n"
"\n"
"   Default constructor.\n"
"\n"
".. method:: __init__(brother)\n"
"\n"
"   Copy constructor.\n"
"\n"
"   :arg brother: An SVertexIterator object.\n"
"   :type brother: :class:`SVertexIterator`\n"
"\n"
".. method:: __init__(vertex, begin, previous_edge, next_edge, t)\n"
"\n"
"   Build an SVertexIterator that starts iteration from an SVertex\n"
"   object v.\n"
"\n"
"   :arg vertex: The SVertex from which the iterator starts iteration.\n"
"   :type vertex: :class:`SVertex`\n"
"   :arg begin: The first SVertex of a ViewEdge.\n"
"   :type begin: :class:`SVertex`\n"
"   :arg previous_edge: The previous FEdge coming to vertex.\n"
"   :type previous_edge: :class:`FEdge`\n"
"   :arg next_edge: The next FEdge going out from vertex.\n"
"   :type next_edge: :class:`FEdge`\n"
"   :arg t: The curvilinear abscissa at vertex.\n"
"   :type t: float");

static int SVertexIterator_init(BPy_SVertexIterator *self, PyObject *args, PyObject *kwds)
{
	static const char *kwlist_1[] = {"brother", NULL};
	static const char *kwlist_2[] = {"vertex", "begin", "previous_edge", "next_edge", "t", NULL};
	PyObject *obj1 = 0, *obj2 = 0, *obj3 = 0, *obj4 = 0;
	float t;

	if (PyArg_ParseTupleAndKeywords(args, kwds, "|O!", (char **)kwlist_1, &SVertexIterator_Type, &obj1)) {
		if (!obj1)
			self->sv_it = new ViewEdgeInternal::SVertexIterator();
		else
			self->sv_it = new ViewEdgeInternal::SVertexIterator(*(((BPy_SVertexIterator *)obj1)->sv_it));
	}
	else if (PyErr_Clear(),
	         PyArg_ParseTupleAndKeywords(args, kwds, "O!O!O!O!f", (char **)kwlist_2,
	                                     &SVertex_Type, &obj1,
	                                     &SVertex_Type, &obj2,
	                                     &FEdge_Type, &obj3,
	                                     &FEdge_Type, &obj4,
	                                     &t))
	{
		self->sv_it = new ViewEdgeInternal::SVertexIterator(
		    ((BPy_SVertex *)obj1)->sv,
		    ((BPy_SVertex *)obj2)->sv,
		    ((BPy_FEdge *)obj3)->fe,
		    ((BPy_FEdge *)obj4)->fe,
		    t);
	}
	else {
		PyErr_SetString(PyExc_TypeError, "invalid argument(s)");
		return -1;
	}
	self->py_it.it = self->sv_it;
	return 0;
}

/*----------------------SVertexIterator get/setters ----------------------------*/

PyDoc_STRVAR(SVertexIterator_object_doc,
"The SVertex object currently pointed by this iterator.\n"
"\n"
":type: :class:`SVertex`");

static PyObject *SVertexIterator_object_get(BPy_SVertexIterator *self, void *UNUSED(closure))
{
	SVertex *sv = self->sv_it->operator->();
	if (sv)
		return BPy_SVertex_from_SVertex(*sv);
	Py_RETURN_NONE;
}

PyDoc_STRVAR(SVertexIterator_t_doc,
"The curvilinear abscissa of the current point.\n"
"\n"
":type: float");

static PyObject *SVertexIterator_t_get(BPy_SVertexIterator *self, void *UNUSED(closure))
{
	return PyFloat_FromDouble(self->sv_it->t());
}

PyDoc_STRVAR(SVertexIterator_u_doc,
"The point parameter at the current point in the 1D element (0 <= u <= 1).\n"
"\n"
":type: float");

static PyObject *SVertexIterator_u_get(BPy_SVertexIterator *self, void *UNUSED(closure))
{
	return PyFloat_FromDouble(self->sv_it->u());
}

static PyGetSetDef BPy_SVertexIterator_getseters[] = {
	{(char *)"object", (getter)SVertexIterator_object_get, (setter)NULL, (char *)SVertexIterator_object_doc, NULL},
	{(char *)"t", (getter)SVertexIterator_t_get, (setter)NULL, (char *)SVertexIterator_t_doc, NULL},
	{(char *)"u", (getter)SVertexIterator_u_get, (setter)NULL, (char *)SVertexIterator_u_doc, NULL},
	{NULL, NULL, NULL, NULL, NULL}  /* Sentinel */
};

/*-----------------------BPy_SVertexIterator type definition ------------------------------*/

PyTypeObject SVertexIterator_Type = {
	PyVarObject_HEAD_INIT(NULL, 0)
	"SVertexIterator",              /* tp_name */
	sizeof(BPy_SVertexIterator),    /* 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 */
	SVertexIterator_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_SVertexIterator_getseters,  /* tp_getset */
	&Iterator_Type,                 /* tp_base */
	0,                              /* tp_dict */
	0,                              /* tp_descr_get */
	0,                              /* tp_descr_set */
	0,                              /* tp_dictoffset */
	(initproc)SVertexIterator_init, /* tp_init */
	0,                              /* tp_alloc */
	0,                              /* tp_new */
};

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

#ifdef __cplusplus
}
#endif