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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup freestyle
*/
#include "BPy_AdjacencyIterator.h"
#include "../BPy_Convert.h"
#include "../Interface0D/BPy_ViewVertex.h"
#ifdef __cplusplus
extern "C" {
#endif
using namespace Freestyle;
///////////////////////////////////////////////////////////////////////////////////////////
//------------------------INSTANCE METHODS ----------------------------------
PyDoc_STRVAR(
AdjacencyIterator_doc,
"Class hierarchy: :class:`Iterator` > :class:`AdjacencyIterator`\n"
"\n"
"Class for representing adjacency iterators used in the chaining\n"
"process. An AdjacencyIterator is created in the increment() and\n"
"decrement() methods of a :class:`ChainingIterator` and passed to the\n"
"traverse() method of the ChainingIterator.\n"
"\n"
".. method:: __init__()\n"
" __init__(brother)\n"
" __init__(vertex, restrict_to_selection=True, restrict_to_unvisited=True)\n"
"\n"
" Builds an :class:`AdjacencyIterator` using the default constructor,\n"
" copy constructor or the overloaded constructor.\n"
"\n"
" :arg brother: An AdjacencyIterator object.\n"
" :type brother: :class:`AdjacencyIterator`\n"
" :arg vertex: The vertex which is the next crossing.\n"
" :type vertex: :class:`ViewVertex`\n"
" :arg restrict_to_selection: Indicates whether to force the chaining\n"
" to stay within the set of selected ViewEdges or not.\n"
" :type restrict_to_selection: bool\n"
" :arg restrict_to_unvisited: Indicates whether a ViewEdge that has\n"
" already been chained must be ignored ot not.\n"
" :type restrict_to_unvisited: bool");
static int AdjacencyIterator_init(BPy_AdjacencyIterator *self, PyObject *args, PyObject *kwds)
{
static const char *kwlist_1[] = {"brother", nullptr};
static const char *kwlist_2[] = {
"vertex", "restrict_to_selection", "restrict_to_unvisited", nullptr};
PyObject *obj1 = nullptr, *obj2 = nullptr, *obj3 = nullptr;
if (PyArg_ParseTupleAndKeywords(
args, kwds, "|O!", (char **)kwlist_1, &AdjacencyIterator_Type, &obj1)) {
if (!obj1) {
self->a_it = new AdjacencyIterator();
self->at_start = true;
}
else {
self->a_it = new AdjacencyIterator(*(((BPy_AdjacencyIterator *)obj1)->a_it));
self->at_start = ((BPy_AdjacencyIterator *)obj1)->at_start;
}
}
else if ((void)PyErr_Clear(),
(void)(obj2 = obj3 = nullptr),
PyArg_ParseTupleAndKeywords(args,
kwds,
"O!|O!O!",
(char **)kwlist_2,
&ViewVertex_Type,
&obj1,
&PyBool_Type,
&obj2,
&PyBool_Type,
&obj3)) {
bool restrictToSelection = (!obj2) ? true : bool_from_PyBool(obj2);
bool restrictToUnvisited = (!obj3) ? true : bool_from_PyBool(obj3);
self->a_it = new AdjacencyIterator(
((BPy_ViewVertex *)obj1)->vv, restrictToSelection, restrictToUnvisited);
self->at_start = ((BPy_AdjacencyIterator *)obj1)->at_start;
}
else {
PyErr_SetString(PyExc_TypeError, "invalid argument(s)");
return -1;
}
self->py_it.it = self->a_it;
return 0;
}
static PyObject *AdjacencyIterator_iter(BPy_AdjacencyIterator *self)
{
Py_INCREF(self);
self->at_start = true;
return (PyObject *)self;
}
static PyObject *AdjacencyIterator_iternext(BPy_AdjacencyIterator *self)
{
if (self->a_it->isEnd()) {
PyErr_SetNone(PyExc_StopIteration);
return nullptr;
}
if (self->at_start) {
self->at_start = false;
}
else {
self->a_it->increment();
if (self->a_it->isEnd()) {
PyErr_SetNone(PyExc_StopIteration);
return nullptr;
}
}
ViewEdge *ve = self->a_it->operator->();
return BPy_ViewEdge_from_ViewEdge(*ve);
}
/*----------------------AdjacencyIterator get/setters ----------------------------*/
PyDoc_STRVAR(AdjacencyIterator_object_doc,
"The ViewEdge object currently pointed to by this iterator.\n"
"\n"
":type: :class:`ViewEdge`");
static PyObject *AdjacencyIterator_object_get(BPy_AdjacencyIterator *self, void * /*closure*/)
{
if (self->a_it->isEnd()) {
PyErr_SetString(PyExc_RuntimeError, "iteration has stopped");
return nullptr;
}
ViewEdge *ve = self->a_it->operator*();
if (ve) {
return BPy_ViewEdge_from_ViewEdge(*ve);
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(AdjacencyIterator_is_incoming_doc,
"True if the current ViewEdge is coming towards the iteration vertex, and\n"
"False otherwise.\n"
"\n"
":type: bool");
static PyObject *AdjacencyIterator_is_incoming_get(BPy_AdjacencyIterator *self, void * /*closure*/)
{
if (self->a_it->isEnd()) {
PyErr_SetString(PyExc_RuntimeError, "iteration has stopped");
return nullptr;
}
return PyBool_from_bool(self->a_it->isIncoming());
}
static PyGetSetDef BPy_AdjacencyIterator_getseters[] = {
{"is_incoming",
(getter)AdjacencyIterator_is_incoming_get,
(setter) nullptr,
AdjacencyIterator_is_incoming_doc,
nullptr},
{"object",
(getter)AdjacencyIterator_object_get,
(setter) nullptr,
AdjacencyIterator_object_doc,
nullptr},
{nullptr, nullptr, nullptr, nullptr, nullptr} /* Sentinel */
};
/*-----------------------BPy_AdjacencyIterator type definition ------------------------------*/
PyTypeObject AdjacencyIterator_Type = {
PyVarObject_HEAD_INIT(nullptr, 0) "AdjacencyIterator", /* tp_name */
sizeof(BPy_AdjacencyIterator), /* tp_basicsize */
0, /* tp_itemsize */
nullptr, /* tp_dealloc */
0, /* tp_vectorcall_offset */
nullptr, /* tp_getattr */
nullptr, /* tp_setattr */
nullptr, /* tp_reserved */
nullptr, /* tp_repr */
nullptr, /* tp_as_number */
nullptr, /* tp_as_sequence */
nullptr, /* tp_as_mapping */
nullptr, /* tp_hash */
nullptr, /* tp_call */
nullptr, /* tp_str */
nullptr, /* tp_getattro */
nullptr, /* tp_setattro */
nullptr, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
AdjacencyIterator_doc, /* tp_doc */
nullptr, /* tp_traverse */
nullptr, /* tp_clear */
nullptr, /* tp_richcompare */
0, /* tp_weaklistoffset */
(getiterfunc)AdjacencyIterator_iter, /* tp_iter */
(iternextfunc)AdjacencyIterator_iternext, /* tp_iternext */
nullptr, /* tp_methods */
nullptr, /* tp_members */
BPy_AdjacencyIterator_getseters, /* tp_getset */
&Iterator_Type, /* tp_base */
nullptr, /* tp_dict */
nullptr, /* tp_descr_get */
nullptr, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)AdjacencyIterator_init, /* tp_init */
nullptr, /* tp_alloc */
nullptr, /* tp_new */
};
///////////////////////////////////////////////////////////////////////////////////////////
#ifdef __cplusplus
}
#endif
|
