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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 CanvasItemGroup; // A canvas control that contains other canvas controls.
class CanvasItemCurve : 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(Geom::BezierCurve &curve);
void set_width(int w);
void set_bg_alpha(float alpha);
bool is_line() { return _curve->size() == 2; }
void update(Geom::Affine const &affine) override;
double closest_distance_to(Geom::Point const &p); // Maybe not needed
// Selection
bool contains(Geom::Point const &p, double tolerance = 0) override;
// Display
void render(Inkscape::CanvasItemBuffer *buf) override;
// Properties
void set_is_fill(bool is_fill) { _is_fill = is_fill; }
bool get_is_fill() { return _is_fill; }
void set_corner0(int corner0) { _corner0 = corner0; } // Used for meshes
int get_corner0() { return _corner0; }
void set_corner1(int corner1) { _corner1 = corner1; }
int get_corner1() { return _corner1; }
protected:
std::unique_ptr<Geom::BezierCurve> _curve;
bool _is_fill = true; // Fill or stroke, used by meshes.
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;
int _corner0 = -1; // For meshes
int _corner1 = -1; // For meshes
};
} // 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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