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Diffstat (limited to 'libs/canvas/canvas/utils.h')
-rw-r--r-- | libs/canvas/canvas/utils.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libs/canvas/canvas/utils.h b/libs/canvas/canvas/utils.h new file mode 100644 index 0000000000..cd9d884475 --- /dev/null +++ b/libs/canvas/canvas/utils.h @@ -0,0 +1,35 @@ +/* + Copyright (C) 2011-2013 Paul Davis + Author: Carl Hetherington <cth@carlh.net> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "canvas/visibility.h" +#include "canvas/types.h" + +namespace ArdourCanvas { + + extern LIBCANVAS_API void color_to_hsv (Color color, double& h, double& s, double& v); + extern LIBCANVAS_API Color hsv_to_color (double h, double s, double v, double a); + + extern LIBCANVAS_API void color_to_rgba (Color, double& r, double& g, double& b, double& a); + extern LIBCANVAS_API Color rgba_to_color (double r, double g, double b, double a); + + extern LIBCANVAS_API void set_source_rgba (Cairo::RefPtr<Cairo::Context>, Color); + + Distance LIBCANVAS_API distance_to_segment_squared (Duple const & p, Duple const & p1, Duple const & p2, double& t, Duple& at); +} + |