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// SPDX-License-Identifier: GPL-2.0-or-later
#ifndef SEEN_CANVAS_ITEM_CURVE_H
#define SEEN_CANVAS_ITEM_CURVE_H
/**
* A class to represent a single Bezier control curve.
*/
/*
* Author:
* Tavmjong Bah
*
* Copyright (C) 2020 Tavmjong Bah
*
* Rewrite of SPCtrlLine and SPCtrlCurve
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <memory>
#include <2geom/path.h>
#include "canvas-item.h"
namespace Inkscape {
class CanvasItemCurve final : public CanvasItem
{
public:
CanvasItemCurve(CanvasItemGroup *group);
CanvasItemCurve(CanvasItemGroup *group, Geom::Point const &p0, Geom::Point const &p1);
CanvasItemCurve(CanvasItemGroup *group, Geom::Point const &p0, Geom::Point const &p1,
Geom::Point const &p2, Geom::Point const &p3);
// Geometry
void set_coords(Geom::Point const &p0, Geom::Point const &p1);
void set_coords(Geom::Point const &p0, Geom::Point const &p1, Geom::Point const &p2, Geom::Point const &p3);
void set_width(int width);
void set_bg_alpha(float alpha);
bool is_line() const { return _curve->size() == 2; }
double closest_distance_to(Geom::Point const &p) const;
// Selection
bool contains(Geom::Point const &p, double tolerance = 0) override;
protected:
~CanvasItemCurve() override = default;
void _update(bool propagate) override;
void _render(Inkscape::CanvasItemBuffer &buf) const override;
// Display
std::unique_ptr<Geom::BezierCurve> _curve;
int _width = 1;
int background_width = 3; // this should be an odd number so that the background appears on both the sides of the curve.
float bg_alpha = 0.5f;
};
} // namespace Inkscape
#endif // SEEN_CANVAS_ITEM_CURVE_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 :
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