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-rw-r--r--src/colwheel.h26
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+/*
+ * colwheel.h
+ *
+ * Colour wheel definition and visualisation
+ *
+ * (c) 2006-2008 Thomas White <taw27@cam.ac.uk>
+ *
+ * Synth2D - two-dimensional Fourier synthesis
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifndef COLWHEEL_H
+#define COLWHEEL_H
+
+#include <gtk/gtk.h>
+
+extern gint colwheel_show(GtkWidget *widget, gpointer data);
+extern double colwheel_red(double am, double ph);
+extern double colwheel_green(double am, double ph);
+extern double colwheel_blue(double am, double ph);
+
+#endif /* COLWHEEL_H */