geom-pathstroke.h

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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef INKSCAPE_HELPER_PATH_STROKE_H
#define INKSCAPE_HELPER_PATH_STROKE_H
 
/* Authors:
 *   Liam P. White
 *   Tavmjong Bah
 *
 * Copyright (C) 2014-2015 Authors
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */
 
#include <vector>
#include <functional>
#include <2geom/path.h>
#include <2geom/pathvector.h>
 
#include "livarot/LivarotDefs.h"
 
namespace Inkscape {
 
enum LineJoinType {
    JOIN_BEVEL,
    JOIN_ROUND,
    JOIN_MITER,
    JOIN_MITER_CLIP,
    JOIN_EXTRAPOLATE,
    JOIN_EXTRAPOLATE1,
    JOIN_EXTRAPOLATE2,
    JOIN_EXTRAPOLATE3,
};
 
enum LineCapType {
    BUTT_FLAT,
    BUTT_ROUND,
    BUTT_SQUARE,
    BUTT_PEAK, // This is not a line ending supported by the SVG standard.
};
 
Geom::PathVector outline(
        Geom::Path const& input,
        double width,
        double miter,
        LineJoinType join = JOIN_BEVEL,
        LineCapType cap = BUTT_FLAT,
        double tolerance = -1);
 
Geom::Path half_outline(
        Geom::Path const& input,
        double width,
        double miter,
        LineJoinType join = JOIN_BEVEL,
        double tolerance = -1);
 
void outline_join(Geom::Path &res, Geom::Path const& outgoing, Geom::Point in_tang, Geom::Point out_tang, double width, double miter, LineJoinType join);
 
bool is_path_empty(const Geom::Path &path);
 
std::vector<Geom::PathVector> split_non_intersecting_paths(Geom::PathVector &&paths, FillRule fill_rule);
 
Geom::PathVector 
do_offset(Geom::PathVector const & path_in
        , double to_offset
        , double tolerance
        , double miter_limit
        , FillRule fillrule
        , Inkscape::LineJoinType join
        , Geom::Point point // knot on LPE
        , Geom::PathVector &helper_path
        , Geom::PathVector &mix_pathv_all);
 
Geom::PathVector 
do_offset(Geom::PathVector const & path_in
        , double to_offset
        , double tolerance
        , double miter_limit
        , FillRule fillrule
        , Inkscape::LineJoinType join);
 
 
} // namespace Inkscape
 
#endif // INKSCAPE_HELPER_PATH_STROKE_H
 
/*
  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 :