#include "numpy_cpp.h"

#include "_path.h"

#include "py_converters.h"

#include "py_adaptors.h"

PyObject *convert_polygon_vector(std::vector<Polygon> &polygons)

{

PyObject *pyresult = PyList_New(polygons.size());

for (size_t i = 0; i < polygons.size(); ++i) {

Polygon poly = polygons[i];

npy_intp dims[] = {(npy_intp)poly.size() + 1, 2 };

numpy::array_view<double, 2> subresult(dims);

/* Make last point same as first. */

memcpy(subresult.data(), &poly[0], sizeof(double) * poly.size() * 2);

subresult(poly.size(), 0) = poly[0].x;

subresult(poly.size(), 1) = poly[0].y;

if (PyList_SetItem(pyresult, i, subresult.pyobj())) {

Py_DECREF(pyresult);

return NULL;

}

}

return pyresult;

}

const char *Py_point_in_path__doc__ = "point_in_path(x, y, radius, path, trans)";

static PyObject *Py_point_in_path(PyObject *self, PyObject *args, PyObject *kwds)

{

double x, y, r;

py::PathIterator path;

agg::trans_affine trans;

bool result;

if (!PyArg_ParseTuple(args,

"dddO&O&:point_in_path",

&x,

&y,

&r,

&convert_path,

&path,

&convert_trans_affine,

&trans)) {

return NULL;

}

CALL_CPP("point_in_path", (result = point_in_path(x, y, r, path, trans)));

if (result) {

Py_RETURN_TRUE;

} else {

Py_RETURN_FALSE;

}

}

const char *Py_points_in_path__doc__ = "points_in_path(points, radius, path, trans)";

static PyObject *Py_points_in_path(PyObject *self, PyObject *args, PyObject *kwds)

{

numpy::array_view<const double, 2> points;

double r;

py::PathIterator path;

agg::trans_affine trans;

if (!PyArg_ParseTuple(args,

"O&dO&O&:points_in_path",

&points.converter,

&points,

&r,

&convert_path,

&path,

&convert_trans_affine,

&trans)) {

return NULL;

}

npy_intp dims[] = { points.dim(0) };

numpy::array_view<bool, 1> results(dims);

CALL_CPP("points_in_path", (points_in_path(points, r, path, trans, results)));

return results.pyobj();

}

const char *Py_point_on_path__doc__ = "point_on_path(x, y, radius, path, trans)";

static PyObject *Py_point_on_path(PyObject *self, PyObject *args, PyObject *kwds)

{

double x, y, r;

py::PathIterator path;

agg::trans_affine trans;

bool result;

if (!PyArg_ParseTuple(args,

"dddO&O&:point_on_path",

&x,

&y,

&r,

&convert_path,

&path,

&convert_trans_affine,

&trans)) {

return NULL;

}

CALL_CPP("point_on_path", (result = point_on_path(x, y, r, path, trans)));

if (result) {

Py_RETURN_TRUE;

} else {

Py_RETURN_FALSE;

}

}

const char *Py_points_on_path__doc__ = "points_on_path(points, radius, path, trans)";

static PyObject *Py_points_on_path(PyObject *self, PyObject *args, PyObject *kwds)

{

numpy::array_view<const double, 2> points;

double r;

py::PathIterator path;

agg::trans_affine trans;

if (!PyArg_ParseTuple(args,

"O&dO&O&:points_on_path",

&points.converter,

&points,

&r,

&convert_path,

&path,

&convert_trans_affine,

&trans)) {

return NULL;

}

npy_intp dims[] = { points.dim(0) };

numpy::array_view<bool, 1> results(dims);

CALL_CPP("points_on_path", (points_on_path(points, r, path, trans, results)));

return results.pyobj();

}

const char *Py_get_path_extents__doc__ = "get_path_extents(path, trans)";

static PyObject *Py_get_path_extents(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::trans_affine trans;

if (!PyArg_ParseTuple(

args, "O&O&:get_path_extents", &convert_path, &path, &convert_trans_affine, &trans)) {

return NULL;

}

extent_limits e;

CALL_CPP("get_path_extents", (reset_limits(e)));

CALL_CPP("get_path_extents", (update_path_extents(path, trans, e)));

npy_intp dims[] = { 2, 2 };

numpy::array_view<double, 2> extents(dims);

extents(0, 0) = e.x0;

extents(0, 1) = e.y0;

extents(1, 0) = e.x1;

extents(1, 1) = e.y1;

return extents.pyobj();

}

const char *Py_update_path_extents__doc__ =

"update_path_extents(path, trans, rect, minpos, ignore)";

static PyObject *Py_update_path_extents(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::trans_affine trans;

agg::rect_d rect;

numpy::array_view<double, 1> minpos;

int ignore;

int changed;

if (!PyArg_ParseTuple(args,

"O&O&O&O&i:update_path_extents",

&convert_path,

&path,

&convert_trans_affine,

&trans,

&convert_rect,

&rect,

&minpos.converter,

&minpos,

&ignore)) {

return NULL;

}

if (minpos.dim(0) != 2) {

PyErr_SetString(PyExc_ValueError, "minpos must be of length 2");

}

extent_limits e;

if (ignore) {

CALL_CPP("update_path_extents", reset_limits(e));

} else {

if (rect.x1 > rect.x2) {

e.x0 = std::numeric_limits<double>::infinity();

e.x1 = -std::numeric_limits<double>::infinity();

} else {

e.x0 = rect.x1;

e.x1 = rect.x2;

}

if (rect.y1 > rect.y2) {

e.y0 = std::numeric_limits<double>::infinity();

e.y1 = -std::numeric_limits<double>::infinity();

} else {

e.y0 = rect.y1;

e.y1 = rect.y2;

}

e.xm = minpos(0);

e.ym = minpos(1);

}

CALL_CPP("update_path_extents", (update_path_extents(path, trans, e)));

changed = (e.x0 != rect.x1 || e.y0 != rect.y1 || e.x1 != rect.x2 || e.y1 != rect.y2 ||

e.xm != minpos(0) || e.ym != minpos(1));

npy_intp extentsdims[] = { 2, 2 };

numpy::array_view<double, 2> outextents(extentsdims);

outextents(0, 0) = e.x0;

outextents(0, 1) = e.y0;

outextents(1, 0) = e.x1;

outextents(1, 1) = e.y1;

npy_intp minposdims[] = { 2 };

numpy::array_view<double, 1> outminpos(minposdims);

outminpos(0) = e.xm;

outminpos(1) = e.ym;

return Py_BuildValue(

"NNi", outextents.pyobj(), outminpos.pyobj(), changed);

}

const char *Py_get_path_collection_extents__doc__ = "get_path_collection_extents(";

static PyObject *Py_get_path_collection_extents(PyObject *self, PyObject *args, PyObject *kwds)

{

agg::trans_affine master_transform;

PyObject *pathsobj;

numpy::array_view<const double, 3> transforms;

numpy::array_view<const double, 2> offsets;

agg::trans_affine offset_trans;

extent_limits e;

if (!PyArg_ParseTuple(args,

"O&OO&O&O&:get_path_collection_extents",

&convert_trans_affine,

&master_transform,

&pathsobj,

&transforms.converter,

&transforms,

&offsets.converter,

&offsets,

&convert_trans_affine,

&offset_trans)) {

return NULL;

}

try

{

py::PathGenerator paths(pathsobj);

CALL_CPP("get_path_collection_extents",

(get_path_collection_extents(

master_transform, paths, transforms, offsets, offset_trans, e)));

}

catch (py::exception &e)

{

return NULL;

}

npy_intp dims[] = { 2, 2 };

numpy::array_view<double, 2> extents(dims);

extents(0, 0) = e.x0;

extents(0, 1) = e.y0;

extents(1, 0) = e.x1;

extents(1, 1) = e.y1;

return extents.pyobj();

}

const char *Py_point_in_path_collection__doc__ =

"point_in_path_collection(x, y, radius, master_transform, paths, transforms, offsets, "

"offset_trans, filled, offset_position)";

static PyObject *Py_point_in_path_collection(PyObject *self, PyObject *args, PyObject *kwds)

{

double x, y, radius;

agg::trans_affine master_transform;

PyObject *pathsobj;

numpy::array_view<const double, 3> transforms;

numpy::array_view<const double, 2> offsets;

agg::trans_affine offset_trans;

int filled;

e_offset_position offset_position;

std::vector<int> result;

if (!PyArg_ParseTuple(args,

"dddO&OO&O&O&iO&:point_in_path_collection",

&x,

&y,

&radius,

&convert_trans_affine,

&master_transform,

&pathsobj,

&transforms.converter,

&transforms,

&offsets.converter,

&offsets,

&convert_trans_affine,

&offset_trans,

&filled,

&convert_offset_position,

&offset_position)) {

return NULL;

}

try

{

py::PathGenerator paths(pathsobj);

CALL_CPP("point_in_path_collection",

(point_in_path_collection(x,

y,

radius,

master_transform,

paths,

transforms,

offsets,

offset_trans,

filled,

offset_position,

result)));

}

catch (py::exception &e)

{

return NULL;

}

npy_intp dims[] = {(npy_intp)result.size() };

numpy::array_view<int, 1> pyresult(dims);

if (result.size() > 0) {

memcpy(pyresult.data(), &result[0], result.size() * sizeof(int));

}

return pyresult.pyobj();

}

const char *Py_path_in_path__doc__ = "path_in_path(path_a, trans_a, path_b, trans_b)";

static PyObject *Py_path_in_path(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator a;

agg::trans_affine atrans;

py::PathIterator b;

agg::trans_affine btrans;

bool result;

if (!PyArg_ParseTuple(args,

"O&O&O&O&:path_in_path",

&convert_path,

&a,

&convert_trans_affine,

&atrans,

&convert_path,

&b,

&convert_trans_affine,

&btrans)) {

return NULL;

}

CALL_CPP("path_in_path", (result = path_in_path(a, atrans, b, btrans)));

if (result) {

Py_RETURN_TRUE;

} else {

Py_RETURN_FALSE;

}

}

const char *Py_clip_path_to_rect__doc__ = "clip_path_to_rect(path, rect, inside)";

static PyObject *Py_clip_path_to_rect(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::rect_d rect;

int inside;

std::vector<Polygon> result;

if (!PyArg_ParseTuple(args,

"O&O&i:clip_path_to_rect",

&convert_path,

&path,

&convert_rect,

&rect,

&inside)) {

return NULL;

}

CALL_CPP("clip_path_to_rect", (clip_path_to_rect(path, rect, inside, result)));

return convert_polygon_vector(result);

}

const char *Py_affine_transform__doc__ = "affine_transform(points, trans)";

static PyObject *Py_affine_transform(PyObject *self, PyObject *args, PyObject *kwds)

{

PyObject *vertices_obj;

agg::trans_affine trans;

if (!PyArg_ParseTuple(args,

"OO&:affine_transform",

&vertices_obj,

&convert_trans_affine,

&trans)) {

return NULL;

}

try {

numpy::array_view<double, 2> vertices(vertices_obj);

npy_intp dims[] = { vertices.dim(0), 2 };

numpy::array_view<double, 2> result(dims);

CALL_CPP("affine_transform", (affine_transform_2d(vertices, trans, result)));

return result.pyobj();

} catch (py::exception) {

numpy::array_view<double, 1> vertices(vertices_obj);

npy_intp dims[] = { vertices.dim(0) };

numpy::array_view<double, 1> result(dims);

CALL_CPP("affine_transform", (affine_transform_1d(vertices, trans, result)));

return result.pyobj();

}

}

const char *Py_count_bboxes_overlapping_bbox__doc__ = "count_bboxes_overlapping_bbox(bbox, bboxes)";

static PyObject *Py_count_bboxes_overlapping_bbox(PyObject *self, PyObject *args, PyObject *kwds)

{

agg::rect_d bbox;

numpy::array_view<const double, 3> bboxes;

int result;

if (!PyArg_ParseTuple(args,

"O&O&:count_bboxes_overlapping_bbox",

&convert_rect,

&bbox,

&bboxes.converter,

&bboxes)) {

return NULL;

}

CALL_CPP("count_bboxes_overlapping_bbox",

(result = count_bboxes_overlapping_bbox(bbox, bboxes)));

return PyLong_FromLong(result);

}

const char *Py_path_intersects_path__doc__ = "path_intersects_path(path1, path2, filled=False)";

static PyObject *Py_path_intersects_path(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator p1;

py::PathIterator p2;

agg::trans_affine t1;

agg::trans_affine t2;

int filled = 0;

const char *names[] = { "p1", "p2", "filled", NULL };

bool result;

if (!PyArg_ParseTupleAndKeywords(args,

kwds,

"O&O&i:path_intersects_path",

(char **)names,

&convert_path,

&p1,

&convert_path,

&p2,

&filled)) {

return NULL;

}

CALL_CPP("path_intersects_path", (result = path_intersects_path(p1, p2)));

if (filled) {

if (!result) {

CALL_CPP("path_intersects_path",

(result = path_in_path(p1, t1, p2, t2)));

}

if (!result) {

CALL_CPP("path_intersects_path",

(result = path_in_path(p2, t1, p1, t2)));

}

}

if (result) {

Py_RETURN_TRUE;

} else {

Py_RETURN_FALSE;

}

}

const char *Py_convert_path_to_polygons__doc__ =

"convert_path_to_polygons(path, trans, width=0, height=0)";

static PyObject *Py_convert_path_to_polygons(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::trans_affine trans;

double width = 0.0, height = 0.0;

std::vector<Polygon> result;

if (!PyArg_ParseTuple(args,

"O&O&|dd:convert_path_to_polygons",

&convert_path,

&path,

&convert_trans_affine,

&trans,

&width,

&height)) {

return NULL;

}

CALL_CPP("convert_path_to_polygons",

(convert_path_to_polygons(path, trans, width, height, result)));

return convert_polygon_vector(result);

}

const char *Py_cleanup_path__doc__ =

"cleanup_path(path, trans, remove_nans, clip_rect, snap_mode, stroke_width, simplify, "

"return_curves, sketch)";

static PyObject *Py_cleanup_path(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::trans_affine trans;

int remove_nans;

agg::rect_d clip_rect;

e_snap_mode snap_mode;

double stroke_width;

PyObject *simplifyobj;

bool simplify = false;

int return_curves;

SketchParams sketch;

if (!PyArg_ParseTuple(args,

"O&O&iO&O&dOiO&:cleanup_path",

&convert_path,

&path,

&convert_trans_affine,

&trans,

&remove_nans,

&convert_rect,

&clip_rect,

&convert_snap,

&snap_mode,

&stroke_width,

&simplifyobj,

&return_curves,

&convert_sketch_params,

&sketch)) {

return NULL;

}

if (simplifyobj == Py_None) {

simplify = path.should_simplify();

} else if (PyObject_IsTrue(simplifyobj)) {

simplify = true;

}

bool do_clip = (clip_rect.x1 < clip_rect.x2 && clip_rect.y1 < clip_rect.y2);

std::vector<double> vertices;

std::vector<npy_uint8> codes;

CALL_CPP("cleanup_path",

(cleanup_path(path,

trans,

remove_nans,

do_clip,

clip_rect,

snap_mode,

stroke_width,

simplify,

return_curves,

sketch,

vertices,

codes)));

size_t length = codes.size();

npy_intp vertices_dims[] = {(npy_intp)length, 2 };

numpy::array_view<double, 2> pyvertices(vertices_dims);

npy_intp codes_dims[] = {(npy_intp)length };

numpy::array_view<unsigned char, 1> pycodes(codes_dims);

memcpy(pyvertices.data(), &vertices[0], sizeof(double) * 2 * length);

memcpy(pycodes.data(), &codes[0], sizeof(unsigned char) * length);

return Py_BuildValue("NN", pyvertices.pyobj(), pycodes.pyobj());

}

const char *Py_convert_to_string__doc__ = "convert_to_string(path, trans, "

"clip_rect, simplify, sketch, precision, codes, postfix)";

static PyObject *Py_convert_to_string(PyObject *self, PyObject *args, PyObject *kwds)

{

py::PathIterator path;

agg::trans_affine trans;

agg::rect_d cliprect;

PyObject *simplifyobj;

bool simplify = false;

SketchParams sketch;

int precision;

PyObject *codesobj;

char *codes[5];

int postfix;

char *buffer;

size_t buffersize;

int status;

if (!PyArg_ParseTuple(args,

"O&O&O&OO&iOi:convert_to_string",

&convert_path,

&path,

&convert_trans_affine,

&trans,

&convert_rect,

&cliprect,

&simplifyobj,

&convert_sketch_params,

&sketch,

&precision,

&codesobj,

&postfix)) {

return NULL;

}

if (simplifyobj == Py_None) {

simplify = path.should_simplify();

} else if (PyObject_IsTrue(simplifyobj)) {

simplify = true;

}

if (!PySequence_Check(codesobj)) {

return NULL;

}

if (PySequence_Size(codesobj) != 5) {

PyErr_SetString(

PyExc_ValueError,

"codes must be a 5-length sequence of byte strings");

return NULL;

}

for (int i = 0; i < 5; ++i) {

PyObject *item = PySequence_GetItem(codesobj, i);

if (item == NULL) {

return NULL;

}

codes[i] = PyBytes_AsString(item);

if (codes[i] == NULL) {

return NULL;

}

}

CALL_CPP("convert_to_string",

(status = convert_to_string(

path, trans, cliprect, simplify, sketch,

precision, codes, (bool)postfix, &buffer,

&buffersize)));

if (status) {

free(buffer);

if (status == 1) {

PyErr_SetString(PyExc_MemoryError, "Memory error");

} else if (status == 2) {

PyErr_SetString(PyExc_ValueError, "Malformed path codes");

}

return NULL;

}

if (buffersize == 0) {

return PyBytes_FromString("");

} else {

return PyBytes_FromStringAndSize(buffer, buffersize);

}

}

extern "C" {

static PyMethodDef module_functions[] = {

{"point_in_path", (PyCFunction)Py_point_in_path, METH_VARARGS, Py_point_in_path__doc__},

{"points_in_path", (PyCFunction)Py_points_in_path, METH_VARARGS, Py_points_in_path__doc__},

{"point_on_path", (PyCFunction)Py_point_on_path, METH_VARARGS, Py_point_on_path__doc__},

{"points_on_path", (PyCFunction)Py_points_on_path, METH_VARARGS, Py_points_on_path__doc__},

{"get_path_extents", (PyCFunction)Py_get_path_extents, METH_VARARGS, Py_get_path_extents__doc__},

{"update_path_extents", (PyCFunction)Py_update_path_extents, METH_VARARGS, Py_update_path_extents__doc__},

{"get_path_collection_extents", (PyCFunction)Py_get_path_collection_extents, METH_VARARGS, Py_get_path_collection_extents__doc__},

{"point_in_path_collection", (PyCFunction)Py_point_in_path_collection, METH_VARARGS, Py_point_in_path_collection__doc__},

{"path_in_path", (PyCFunction)Py_path_in_path, METH_VARARGS, Py_path_in_path__doc__},

{"clip_path_to_rect", (PyCFunction)Py_clip_path_to_rect, METH_VARARGS, Py_clip_path_to_rect__doc__},

{"affine_transform", (PyCFunction)Py_affine_transform, METH_VARARGS, Py_affine_transform__doc__},

{"count_bboxes_overlapping_bbox", (PyCFunction)Py_count_bboxes_overlapping_bbox, METH_VARARGS, Py_count_bboxes_overlapping_bbox__doc__},

{"path_intersects_path", (PyCFunction)Py_path_intersects_path, METH_VARARGS|METH_KEYWORDS, Py_path_intersects_path__doc__},

{"convert_path_to_polygons", (PyCFunction)Py_convert_path_to_polygons, METH_VARARGS, Py_convert_path_to_polygons__doc__},

{"cleanup_path", (PyCFunction)Py_cleanup_path, METH_VARARGS, Py_cleanup_path__doc__},

{"convert_to_string", (PyCFunction)Py_convert_to_string, METH_VARARGS, Py_convert_to_string__doc__},

{NULL}

};

struct module_state

{

int _dummy;

};

#if PY3K

static struct PyModuleDef moduledef = {

PyModuleDef_HEAD_INIT,

"_path",

NULL,

sizeof(struct module_state),

module_functions,

NULL,

NULL,

NULL,

NULL

};

#define INITERROR return NULL

PyMODINIT_FUNC PyInit__path(void)

#else

#define INITERROR return

PyMODINIT_FUNC init_path(void)

#endif

{

PyObject *m;

#if PY3K

m = PyModule_Create(&moduledef);

#else

m = Py_InitModule3("_path", module_functions, NULL);

#endif

if (m == NULL) {

INITERROR;

}

import_array();

#if PY3K

return m;

#endif

}

}