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-rw-r--r--src/display/control/canvas-item-curve.h87
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diff --git a/src/display/control/canvas-item-curve.h b/src/display/control/canvas-item-curve.h
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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 :