X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Fcanvas%2Futils.h;h=97bbfb8fb84d38f1025232c85346a75616d9da0d;hb=d59739d728870843b39901a48216fe9109be6641;hp=9db677b61b6ce7d8c00257f1d42ce38831988abb;hpb=f00b3b7f111e36537d773daef0ae77b03d11f82f;p=ardour.git

diff --git a/libs/canvas/canvas/utils.h b/libs/canvas/canvas/utils.h
index 9db677b61b..97bbfb8fb8 100644
--- a/libs/canvas/canvas/utils.h
+++ b/libs/canvas/canvas/utils.h
@@ -17,16 +17,19 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include <cairomm/context.h>
+
+#include "canvas/visibility.h"
 #include "canvas/types.h"
 
 namespace ArdourCanvas {
 
-	extern void color_to_hsv (Color color, double& h, double& s, double& v);
-	extern Color hsv_to_color (double h, double s, double v, double a);
+	extern LIBCANVAS_API void set_source_rgba (Cairo::RefPtr<Cairo::Context>, Color);
+	extern LIBCANVAS_API void set_source_rgb_a (Cairo::RefPtr<Cairo::Context>, Color, float alpha);  //override the color's alpha
 
-	extern void color_to_rgba (Color, double& r, double& g, double& b, double& a);
-	extern Color rgba_to_color (double r, double g, double b, double a);
+	extern LIBCANVAS_API void set_source_rgba (cairo_t*, Color);
+	extern LIBCANVAS_API void set_source_rgb_a (cairo_t*, Color, float alpha);  //override the color's alpha
 
-	extern 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);
 }