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Diffstat (limited to 'src/py2geom/path.cpp')
| -rw-r--r-- | src/py2geom/path.cpp | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/py2geom/path.cpp b/src/py2geom/path.cpp new file mode 100644 index 0000000..68757a6 --- /dev/null +++ b/src/py2geom/path.cpp @@ -0,0 +1,265 @@ +/* + * Python bindings for lib2geom + * + * Copyright 2007 Aaron Spike <aaron@ekips.org> + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + */ + +#include <boost/python.hpp> +#include <boost/python/suite/indexing/vector_indexing_suite.hpp> + +#include "2geom/curve.h" +#include "2geom/bezier-curve.h" +#include "2geom/path.h" +#include "2geom/pathvector.h" +#include "2geom/sbasis-to-bezier.h" +#include "helpers.h" + +#include "2geom/point.h" +#include "2geom/rect.h" +#include "2geom/d2.h" + +using namespace boost::python; + +Geom::Curve const &path_getitem(Geom::Path const& p, int index) +{ + unsigned size = p.size_default(); + unsigned i = index; + if (index < 0) + { + i = index = size + index; + } + if ((index < 0) || (i > (size - 1))) { + PyErr_SetString(PyExc_IndexError, "index out of range"); + boost::python::throw_error_already_set(); + } + return p[i]; +} + +struct CurveWrap : Geom::Curve, wrapper<Geom::Curve> +{ + Geom::Point initialPoint() const {return this->get_override("initialPoint")();} + Geom::Point finalPoint() const {return this->get_override("finalPoint")();} + bool isDegenerate() const {return this->get_override("isDegenerate")();} + CurveWrap *duplicate() const {return this->get_override("duplicate")();} + Geom::Rect boundsFast() const {return this->get_override("boundsFast")();} + Geom::Rect boundsExact() const {return this->get_override("boundsExact")();} + virtual Geom::OptRect boundsLocal(Geom::OptInterval const &i, unsigned deg) const {return this->get_override("boundsLocal")(i,deg);} + std::vector<double> roots(double v, Geom::Dim2 d) const {return this->get_override("roots")(v,d);} + + int winding(Geom::Point const &p) const { + if (override f = this->get_override("winding")) { + return f(p); + } + return Geom::Curve::winding(p); + } + int default_winding(Geom::Point p) const { return this->Geom::Curve::winding(p); } + + Geom::Curve *portion(double f, double t) const { return this->get_override("portion")(f,t); } + Geom::Curve *reverse() const { + if (override f = this->get_override("reverse")) { + return f(); + } + return Geom::Curve::reverse(); + } + Geom::Curve *default_reverse() const { return this->Geom::Curve::reverse(); } + + Geom::Curve *derivative() const { return this->get_override("derivative")(); } + + + Geom::Curve *transformed(Geom::Affine const &m) const { return this->get_override("transformed")(m); } + + Geom::Point pointAt(Geom::Coord t) const { + if (override f = this->get_override("pointAt")) { + return f(t); + } + return Geom::Curve::pointAt(t); + } + Geom::Point default_pointAt(Geom::Coord t) { return this->Geom::Curve::pointAt(t); } + std::vector<Geom::Point> pointAndDerivatives(Geom::Coord t, unsigned n) const { + return this->get_override("pointAndDerivatives")(t, n); + } + + Geom::D2<Geom::SBasis> toSBasis() const {return this->get_override("sbasis")();} +}; + + +/* pycairo stuff: */ +#ifdef HAVE_PYCAIRO + +#include "cairo-helpers.h" + +void py_cairo_curve(object cr, Geom::Curve const &c) { + cairo_curve(cairo_t_from_object(cr), c); +} +void py_cairo_rectangle(object cr, Geom::Rect const &r) { + cairo_rectangle(cairo_t_from_object(cr), r); +} + +void py_cairo_convex_hull(object cr, Geom::ConvexHull const &r) { + cairo_convex_hull(cairo_t_from_object(cr), r); +} +/*void py_cairo_path(object cr, Geom::Path const &p) { + cairo_path(cairo_t_from_object(cr), p); + }*/ + +void py_cairo_path(object cr, Geom::Path const &p) { + cairo_path(cairo_t_from_object(cr), p); +} + +void py_cairo_path(object cr, Geom::PathVector const &p) { + cairo_path(cairo_t_from_object(cr), p); +} +void py_cairo_path_stitches(object cr, Geom::Path const &p) { + cairo_path_stitches(cairo_t_from_object(cr), p); +} +void py_cairo_path_stitches(object cr, Geom::PathVector const &p) { + cairo_path_stitches(cairo_t_from_object(cr), p); +} +void (*cp_1)(object, Geom::Path const &) = &py_cairo_path; +void (*cp_2)(object, Geom::PathVector const &) = &py_cairo_path; + +void (*cps_1)(object, Geom::Path const &) = &py_cairo_path_stitches; +void (*cps_2)(object, Geom::PathVector const &) = &py_cairo_path_stitches; + + +void py_cairo_d2_sb(object cr, Geom::D2<Geom::SBasis> const &p) { + cairo_d2_sb(cairo_t_from_object(cr), p); +} + +void py_cairo_d2_pw_sb(object cr, Geom::D2<Geom::Piecewise<Geom::SBasis> > const &p) { + cairo_d2_pw_sb(cairo_t_from_object(cr), p); +} + +void py_cairo_pw_d2_sb(object cr, Geom::Piecewise<Geom::D2<Geom::SBasis> > const &p) { + cairo_pw_d2_sb(cairo_t_from_object(cr), p); +} + +#endif // HAVE_PYCAIRO + +Geom::Point (Geom::Path::*path_pointAt_time)(Geom::Coord) const = &Geom::Path::pointAt; +Geom::Coord (Geom::Path::*path_valueAt_time)(Geom::Coord, Geom::Dim2) const = &Geom::Path::valueAt; +void (Geom::Path::*appendPortionTo_time)(Geom::Path &, Geom::Coord, Geom::Coord) const = &Geom::Path::appendPortionTo; +//void (Geom::Path::*appendPortionTo_pos)(Geom::Path &, Geom::PathPosition const &, Geom::PathPosition const &, bool) const = &Geom::Path::appendPortionTo; + +void wrap_path() +{ +/* class_<CurveWrap, boost::noncopyable>("Curve") + .def("initalPoint", pure_virtual(&Geom::Curve::initialPoint)) + .def("finalPoint", pure_virtual(&Geom::Curve::finalPoint)) + .def("duplicate", pure_virtual(&Geom::Curve::duplicate), return_value_policy<manage_new_object>()) + .def("boundsFast", pure_virtual(&Geom::Curve::boundsFast)) + .def("boundsExact", pure_virtual(&Geom::Curve::boundsExact)) + //.def("pointAt", &Geom::Curve::pointAt, &CurveWrap::default_pointAt) + //.def("winding", &Geom::Curve::winding, &CurveWrap::default_winding) + .def("pointAndDerivatives", pure_virtual(&Geom::Curve::pointAndDerivatives)) + .def("toSBasis", pure_virtual(&Geom::Curve::toSBasis)) + ;*/ +/* class_<Geom::LineSegment, bases<CurveWrap> >("LineSegment") + .def("points", &Geom::LineSegment::points) + ; + class_<Geom::QuadraticBezier, bases<CurveWrap> >("QuadraticBezier") + .def("points", &Geom::QuadraticBezier::points) + ; + class_<Geom::CubicBezier, bases<CurveWrap> >("CubicBezier") + .def("points", &Geom::CubicBezier::points) + ;*/ + class_<Geom::Path>("Path") + .def("__getitem__", path_getitem, return_value_policy<copy_const_reference>()) //or return_internal_reference see http://www.boost.org/doc/libs/1_36_0/libs/python/doc/v2/faq.html#question1 + .def("empty", &Geom::Path::empty) + .def("closed", &Geom::Path::closed) + .def("close", &Geom::Path::close) + .def("boundsFast", &Geom::Path::boundsFast) + .def("boundsExact", &Geom::Path::boundsExact) + .def("toPwSb", &Geom::Path::toPwSb) + .def(self * Geom::Affine()) + .def(self *= Geom::Affine()) + .def("pointAt", path_pointAt_time) + .def("valueAt", path_valueAt_time) + .def("__call__", path_pointAt_time) + .def("roots", &Geom::Path::roots) + //.def("allNearestTimes", &Geom::Path::allNearestTimes) + //.def("nearestTime", &Geom::Path::nearestTime) + .def("appendPortionTo", appendPortionTo_time) + //.def("portion", &Geom::Path::portion) + .def("reversed", &Geom::Path::reversed) + //.def("insert", &Geom::Path::insert) + .def("clear", &Geom::Path::clear) + //.def("erase", &Geom::Path::erase) + .def("erase_last", &Geom::Path::erase_last) + //.def("replace", &Geom::Path::replace) + .def("start", &Geom::Path::start) + .def("initialPoint", &Geom::Path::initialPoint) + .def("finalPoint", &Geom::Path::finalPoint) + //.def("append", &Geom::Path::append) + //.def("appendNew", &Geom::Path::appendNew) + ; + def("paths_to_pw",Geom::paths_to_pw); + class_<Geom::PathVector >("PathVector") + .def(vector_indexing_suite<Geom::PathVector >()) + .def(self * Geom::Affine()) + .def(self *= Geom::Affine()) + .def("reversed", &Geom::PathVector::reversed) + .def("reverse", &Geom::PathVector::reverse) + .def("boundsFast", &Geom::PathVector::boundsFast) + .def("boundsExact", &Geom::PathVector::boundsExact) + ; + def("path_from_piecewise", Geom::path_from_piecewise); + def("path_from_sbasis", Geom::path_from_sbasis); + def("cubicbezierpath_from_sbasis", Geom::cubicbezierpath_from_sbasis); + +#ifdef HAVE_PYCAIRO +void cairo_move_to(cairo_t *cr, Geom::Point p1); + def("cubicbezierpath_from_sbasis", Geom::cubicbezierpath_from_sbasis); +void cairo_line_to(cairo_t *cr, Geom::Point p1); + def("cubicbezierpath_from_sbasis", Geom::cubicbezierpath_from_sbasis); +void cairo_curve_to(cairo_t *cr, Geom::Point p1, Geom::Point p2, Geom::Point p3); + def("cubicbezierpath_from_sbasis", Geom::cubicbezierpath_from_sbasis); + + //def("cairo_curve", cairo_curve); + def("cairo_convex_hull", py_cairo_convex_hull); + def("cairo_path", cp_1); + def("cairo_path", cp_2); + def("cairo_path_stitches", cps_1); + def("cairo_path_stitches", cps_2); + + def("cairo_d2_sb", py_cairo_d2_sb); + def("cairo_d2_pw_sb", py_cairo_d2_pw_sb); + def("cairo_pw_d2_sb", py_cairo_pw_d2_sb); +#endif // HAVE_PYCAIRO +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(substatement-open . 0)) + indent-tabs-mode:nil + c-brace-offset:0 + fill-column:99 + End: + vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : +*/ |