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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:29:01 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:29:01 +0000 |
commit | 35a96bde514a8897f6f0fcc41c5833bf63df2e2a (patch) | |
tree | 657d15a03cc46bd099fc2c6546a7a4ad43815d9f /src/livarot/path-description.h | |
parent | Initial commit. (diff) | |
download | inkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.tar.xz inkscape-35a96bde514a8897f6f0fcc41c5833bf63df2e2a.zip |
Adding upstream version 1.0.2.upstream/1.0.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/livarot/path-description.h')
-rw-r--r-- | src/livarot/path-description.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/livarot/path-description.h b/src/livarot/path-description.h new file mode 100644 index 0000000..dd957ec --- /dev/null +++ b/src/livarot/path-description.h @@ -0,0 +1,185 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** @file + * TODO: insert short description here + *//* + * Authors: see git history + * + * Copyright (C) 2018 Authors + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ +#ifndef SEEN_INKSCAPE_LIVAROT_PATH_DESCRIPTION_H +#define SEEN_INKSCAPE_LIVAROT_PATH_DESCRIPTION_H + +#include <2geom/point.h> +#include "svg/stringstream.h" + +// path description commands +/* FIXME: these should be unnecessary once the refactoring of the path +** description stuff is finished. +*/ +enum +{ + descr_moveto = 0, // a moveto + descr_lineto = 1, // a (guess what) lineto + descr_cubicto = 2, + descr_bezierto = 3, // "beginning" of a quadratic bezier spline, will contain its endpoint (i know, it's bad...) + descr_arcto = 4, + descr_close = 5, + descr_interm_bezier = 6, // control point of the bezier spline + descr_forced = 7, + + descr_type_mask = 15 // the command no will be stored in a "flags" field, potentially with other info, so we need + // a mask to AND the field and extract the command +}; + +struct PathDescr +{ + PathDescr() : flags(0), associated(-1), tSt(0), tEn(1) {} + PathDescr(int f) : flags(f), associated(-1), tSt(0), tEn(1) {} + virtual ~PathDescr() = default; + + int getType() const { return flags & descr_type_mask; } + void setType(int t) { + flags &= ~descr_type_mask; + flags |= t; + } + + virtual void dumpSVG(Inkscape::SVGOStringStream &/*s*/, Geom::Point const &/*last*/) const {} + virtual PathDescr *clone() const = 0; + virtual void transform(Geom::Affine const &/*t*/) {} + virtual void dump(std::ostream &/*s*/) const {} + + int flags; // most notably contains the path command no + int associated; // index in the polyline of the point that ends the path portion of this command + double tSt; + double tEn; +}; + +struct PathDescrMoveTo : public PathDescr +{ + PathDescrMoveTo(Geom::Point const &pp) + : PathDescr(descr_moveto), p(pp) {} + + void dumpSVG(Inkscape::SVGOStringStream &s, Geom::Point const &last) const override; + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; +}; + +struct PathDescrLineTo : public PathDescr +{ + PathDescrLineTo(Geom::Point const &pp) + : PathDescr(descr_lineto), p(pp) {} + + void dumpSVG(Inkscape::SVGOStringStream &s, Geom::Point const &last) const override; + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; +}; + +// quadratic bezier curves: a set of control points, and an endpoint +struct PathDescrBezierTo : public PathDescr +{ + PathDescrBezierTo(Geom::Point const &pp, int n) + : PathDescr(descr_bezierto), p(pp), nb(n) {} + + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; // the endpoint's coordinates + int nb; // number of control points, stored in the next path description commands +}; + +/* FIXME: I don't think this should be necessary */ +struct PathDescrIntermBezierTo : public PathDescr +{ + PathDescrIntermBezierTo() + : PathDescr(descr_interm_bezier) , p(0, 0) {} + PathDescrIntermBezierTo(Geom::Point const &pp) + : PathDescr(descr_interm_bezier), p(pp) {} + + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; // control point coordinates +}; + +// cubic spline curve: 2 tangents and one endpoint +struct PathDescrCubicTo : public PathDescr +{ + PathDescrCubicTo(Geom::Point const &pp, Geom::Point const &s, Geom::Point const& e) + : PathDescr(descr_cubicto), p(pp), start(s), end(e) {} + + void dumpSVG(Inkscape::SVGOStringStream &s, Geom::Point const &last) const override; + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; + Geom::Point start; + Geom::Point end; +}; + +// arc: endpoint, 2 radii and one angle, plus 2 booleans to choose the arc (svg style) +struct PathDescrArcTo : public PathDescr +{ + PathDescrArcTo(Geom::Point const &pp, double x, double y, double a, bool l, bool c) + : PathDescr(descr_arcto), p(pp), rx(x), ry(y), angle(a), large(l), clockwise(c) {} + + void dumpSVG(Inkscape::SVGOStringStream &s, Geom::Point const &last) const override; + PathDescr *clone() const override; + void transform(Geom::Affine const &t) override; + void dump(std::ostream &s) const override; + + Geom::Point p; + double rx; + double ry; + double angle; + bool large; + bool clockwise; +}; + +struct PathDescrForced : public PathDescr +{ + PathDescrForced() : PathDescr(descr_forced), p(0, 0) {} + + PathDescr *clone() const override; + + /* FIXME: not sure whether _forced should have a point associated with it; + ** Path::ConvertForcedToMoveTo suggests that maybe it should. + */ + Geom::Point p; +}; + +struct PathDescrClose : public PathDescr +{ + PathDescrClose() : PathDescr(descr_close) {} + + void dumpSVG(Inkscape::SVGOStringStream &s, Geom::Point const &last) const override; + PathDescr *clone() const override; + + /* FIXME: not sure whether _forced should have a point associated with it; + ** Path::ConvertForcedToMoveTo suggests that maybe it should. + */ + Geom::Point p; +}; + +#endif + + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |