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-rw-r--r--widgets/misc/e-hsv-utils.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/widgets/misc/e-hsv-utils.h b/widgets/misc/e-hsv-utils.h
new file mode 100644
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+++ b/widgets/misc/e-hsv-utils.h
@@ -0,0 +1,31 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+#ifndef _E_HSV_UTILS_H_
+#define _E_HSV_UTILS_H_
+
+#include <libgnome/gnome-defs.h>
+#include <gdk/gdk.h>
+
+BEGIN_GNOME_DECLS
+
+void e_hsv_to_rgb (gdouble h,
+ gdouble s,
+ gdouble v,
+ gdouble *r,
+ gdouble *g,
+ gdouble *b);
+
+void e_rgb_to_hsv (gdouble r,
+ gdouble g,
+ gdouble b,
+ gdouble *h,
+ gdouble *s,
+ gdouble *v);
+
+void e_hsv_tweak (GdkColor *colour,
+ gdouble delta_h,
+ gdouble delta_s,
+ gdouble delta_v);
+
+END_GNOME_DECLS
+
+#endif /* _E_HSV_UTILS_H_ */