67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/*
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* Copyright (C) 2016 Nick Mainsbridge <mainsbridge@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __CANVAS_FRAMED_CURVE_H__
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#define __CANVAS_FRAMED_CURVE_H__
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#include "canvas/visibility.h"
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#include "canvas/interpolated_curve.h"
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#include "canvas/poly_item.h"
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#include "canvas/fill.h"
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/* similar to a Curve, with the first point being a height definition rather than a point to
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interpolate.
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*/
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namespace ArdourCanvas {
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class LIBCANVAS_API FramedCurve : public PolyItem, public InterpolatedCurve
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{
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public:
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FramedCurve (Canvas*);
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FramedCurve (Item*);
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enum CurveFill {
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None,
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Inside,
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Outside,
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};
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void compute_bounding_box () const;
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void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
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void set (Points const &);
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void set_points_per_segment (uint32_t n);
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bool covers (Duple const &) const;
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void set_fill_mode (CurveFill cf) { curve_fill = cf; }
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private:
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Points samples;
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Points::size_type n_samples;
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uint32_t points_per_segment;
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CurveFill curve_fill;
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void interpolate ();
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};
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}
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#endif
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