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35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
/*
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Copyright (C) 2011-2013 Paul Davis
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Author: Carl Hetherington <cth@carlh.net>
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "canvas/visibility.h"
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#include "canvas/types.h"
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namespace ArdourCanvas {
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extern LIBCANVAS_API void color_to_hsv (Color color, double& h, double& s, double& v);
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extern LIBCANVAS_API Color hsv_to_color (double h, double s, double v, double a);
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extern LIBCANVAS_API void color_to_rgba (Color, double& r, double& g, double& b, double& a);
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extern LIBCANVAS_API Color rgba_to_color (double r, double g, double b, double a);
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extern LIBCANVAS_API void set_source_rgba (Cairo::RefPtr<Cairo::Context>, Color);
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Distance LIBCANVAS_API distance_to_segment_squared (Duple const & p, Duple const & p1, Duple const & p2, double& t, Duple& at);
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}
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