blender-archive/source/blender/freestyle/intern/python/Interface1D/BPy_FrsCurve.cpp

/* SPDX-License-Identifier: GPL-2.0-or-later */

/** \file
 * \ingroup freestyle
 */

#include "BPy_FrsCurve.h"

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

#ifdef __cplusplus
extern "C" {
#endif

using namespace Freestyle;

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

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

PyDoc_STRVAR(FrsCurve_doc,
             "Class hierarchy: :class:`Interface1D` > :class:`Curve`\n"
             "\n"
             "Base class for curves made of CurvePoints.  :class:`SVertex` is the\n"
             "type of the initial curve vertices.  A :class:`Chain` is a\n"
             "specialization of a Curve.\n"
             "\n"
             ".. method:: __init__()\n"
             "            __init__(brother)\n"
             "            __init__(id)\n"
             "\n"
             "   Builds a :class:`FrsCurve` using a default constructor,\n"
             "   copy constructor or from an :class:`Id`.\n"
             "\n"
             "   :arg brother: A Curve object.\n"
             "   :type brother: :class:`Curve`\n"
             "   :arg id: An Id object.\n"
             "   :type id: :class:`Id`");

static int FrsCurve_init(BPy_FrsCurve *self, PyObject *args, PyObject *kwds)
{
  static const char *kwlist_1[] = {"brother", nullptr};
  static const char *kwlist_2[] = {"id", nullptr};
  PyObject *obj = nullptr;

  if (PyArg_ParseTupleAndKeywords(args, kwds, "|O!", (char **)kwlist_1, &FrsCurve_Type, &obj)) {
    if (!obj) {
      self->c = new Curve();
    }
    else {
      self->c = new Curve(*(((BPy_FrsCurve *)obj)->c));
    }
  }
  else if ((void)PyErr_Clear(),
           PyArg_ParseTupleAndKeywords(args, kwds, "O!", (char **)kwlist_2, &Id_Type, &obj)) {
    self->c = new Curve(*(((BPy_Id *)obj)->id));
  }
  else {
    PyErr_SetString(PyExc_TypeError, "invalid argument(s)");
    return -1;
  }
  self->py_if1D.if1D = self->c;
  self->py_if1D.borrowed = false;
  return 0;
}

PyDoc_STRVAR(FrsCurve_push_vertex_back_doc,
             ".. method:: push_vertex_back(vertex)\n"
             "\n"
             "   Adds a single vertex at the end of the Curve.\n"
             "\n"
             "   :arg vertex: A vertex object.\n"
             "   :type vertex: :class:`SVertex` or :class:`CurvePoint`");

static PyObject *FrsCurve_push_vertex_back(BPy_FrsCurve *self, PyObject *args, PyObject *kwds)
{
  static const char *kwlist[] = {"vertex", nullptr};
  PyObject *obj = nullptr;

  if (!PyArg_ParseTupleAndKeywords(args, kwds, "O", (char **)kwlist, &obj)) {
    return nullptr;
  }

  if (BPy_CurvePoint_Check(obj)) {
    self->c->push_vertex_back(((BPy_CurvePoint *)obj)->cp);
  }
  else if (BPy_SVertex_Check(obj)) {
    self->c->push_vertex_back(((BPy_SVertex *)obj)->sv);
  }
  else {
    PyErr_SetString(PyExc_TypeError, "invalid argument");
    return nullptr;
  }
  Py_RETURN_NONE;
}

PyDoc_STRVAR(FrsCurve_push_vertex_front_doc,
             ".. method:: push_vertex_front(vertex)\n"
             "\n"
             "   Adds a single vertex at the front of the Curve.\n"
             "\n"
             "   :arg vertex: A vertex object.\n"
             "   :type vertex: :class:`SVertex` or :class:`CurvePoint`");

static PyObject *FrsCurve_push_vertex_front(BPy_FrsCurve *self, PyObject *args, PyObject *kwds)
{
  static const char *kwlist[] = {"vertex", nullptr};
  PyObject *obj = nullptr;

  if (!PyArg_ParseTupleAndKeywords(args, kwds, "O", (char **)kwlist, &obj)) {
    return nullptr;
  }

  if (BPy_CurvePoint_Check(obj)) {
    self->c->push_vertex_front(((BPy_CurvePoint *)obj)->cp);
  }
  else if (BPy_SVertex_Check(obj)) {
    self->c->push_vertex_front(((BPy_SVertex *)obj)->sv);
  }
  else {
    PyErr_SetString(PyExc_TypeError, "invalid argument");
    return nullptr;
  }
  Py_RETURN_NONE;
}

static PyMethodDef BPy_FrsCurve_methods[] = {
    {"push_vertex_back",
     (PyCFunction)FrsCurve_push_vertex_back,
     METH_VARARGS | METH_KEYWORDS,
     FrsCurve_push_vertex_back_doc},
    {"push_vertex_front",
     (PyCFunction)FrsCurve_push_vertex_front,
     METH_VARARGS | METH_KEYWORDS,
     FrsCurve_push_vertex_front_doc},
    {nullptr, nullptr, 0, nullptr},
};

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

PyDoc_STRVAR(FrsCurve_is_empty_doc,
             "True if the Curve doesn't have any Vertex yet.\n"
             "\n"
             ":type: bool");

static PyObject *FrsCurve_is_empty_get(BPy_FrsCurve *self, void * /*closure*/)
{
  return PyBool_from_bool(self->c->empty());
}

PyDoc_STRVAR(FrsCurve_segments_size_doc,
             "The number of segments in the polyline constituting the Curve.\n"
             "\n"
             ":type: int");

static PyObject *FrsCurve_segments_size_get(BPy_FrsCurve *self, void * /*closure*/)
{
  return PyLong_FromLong(self->c->nSegments());
}

static PyGetSetDef BPy_FrsCurve_getseters[] = {
    {"is_empty", (getter)FrsCurve_is_empty_get, (setter) nullptr, FrsCurve_is_empty_doc, nullptr},
    {"segments_size",
     (getter)FrsCurve_segments_size_get,
     (setter) nullptr,
     FrsCurve_segments_size_doc,
     nullptr},
    {nullptr, nullptr, nullptr, nullptr, nullptr} /* Sentinel */
};

/*-----------------------BPy_FrsCurve type definition ------------------------------*/

PyTypeObject FrsCurve_Type = {
    PyVarObject_HEAD_INIT(nullptr, 0)
    /*tp_name*/ "Curve",
    /*tp_basicsize*/ sizeof(BPy_FrsCurve),
    /*tp_itemsize*/ 0,
    /*tp_dealloc*/ nullptr,
    /*tp_vectorcall_offset*/ 0,
    /*tp_getattr*/ nullptr,
    /*tp_setattr*/ nullptr,
    /*tp_as_async*/ 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*/ nullptr,
    /*tp_flags*/ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
    /*tp_doc*/ FrsCurve_doc,
    /*tp_traverse*/ nullptr,
    /*tp_clear*/ nullptr,
    /*tp_richcompare*/ nullptr,
    /*tp_weaklistoffset*/ 0,
    /*tp_iter*/ nullptr,
    /*tp_iternext*/ nullptr,
    /*tp_methods*/ BPy_FrsCurve_methods,
    /*tp_members*/ nullptr,
    /*tp_getset*/ BPy_FrsCurve_getseters,
    /*tp_base*/ &Interface1D_Type,
    /*tp_dict*/ nullptr,
    /*tp_descr_get*/ nullptr,
    /*tp_descr_set*/ nullptr,
    /*tp_dictoffset*/ 0,
    /*tp_init*/ (initproc)FrsCurve_init,
    /*tp_alloc*/ nullptr,
    /*tp_new*/ nullptr,
};

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

#ifdef __cplusplus
}
#endif