diff options
Diffstat (limited to 'libs/canvas/utils.cc')
| -rw-r--r-- | libs/canvas/utils.cc | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libs/canvas/utils.cc b/libs/canvas/utils.cc index 99516c849b..b7571a7844 100644 --- a/libs/canvas/utils.cc +++ b/libs/canvas/utils.cc @@ -154,6 +154,39 @@ ArdourCanvas::set_source_rgba (Cairo::RefPtr<Cairo::Context> context, Color colo ); } +void +ArdourCanvas::set_source_rgb_a (Cairo::RefPtr<Cairo::Context> context, Color color, float alpha) +{ + context->set_source_rgba ( + ((color >> 24) & 0xff) / 255.0, + ((color >> 16) & 0xff) / 255.0, + ((color >> 8) & 0xff) / 255.0, + alpha + ); +} + +void +ArdourCanvas::set_source_rgba (cairo_t *cr, Color color) +{ + cairo_set_source_rgba ( cr, + ((color >> 24) & 0xff) / 255.0, + ((color >> 16) & 0xff) / 255.0, + ((color >> 8) & 0xff) / 255.0, + ((color >> 0) & 0xff) / 255.0 + ); +} + +void +ArdourCanvas::set_source_rgb_a (cairo_t *cr, Color color, float alpha) +{ + cairo_set_source_rgba ( cr, + ((color >> 24) & 0xff) / 255.0, + ((color >> 16) & 0xff) / 255.0, + ((color >> 8) & 0xff) / 255.0, + alpha + ); +} + ArdourCanvas::Distance ArdourCanvas::distance_to_segment_squared (Duple const & p, Duple const & p1, Duple const & p2, double& t, Duple& at) { |