1 files changed, 37 insertions, 0 deletions
diff --git a/libs/canvas/canvas/curve.h b/libs/canvas/canvas/curve.h
new file mode 100644
index 0000000000..733808dc14
--- /dev/null
+++ b/libs/canvas/canvas/curve.h
@@ -0,0 +1,37 @@
+#ifndef __CANVAS_CURVE_H__
+#define __CANVAS_CURVE_H__
+
+#include "canvas/poly_item.h"
+
+namespace ArdourCanvas {
+
+class Curve : public PolyItem
+{
+public:
+    Curve (Group *);
+    
+    void compute_bounding_box () const;
+
+    void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
+    XMLNode* get_state () const;
+    void set_state (XMLNode const *);
+
+    void set (Points const &);
+
+  protected:
+    void render_path (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
+    void render_curve (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
+    
+  private:
+    Points first_control_points;
+    Points second_control_points;
+
+    
+    static void compute_control_points (Points const &,
+					Points&, Points&);
+    static double* solve (std::vector<double> const&);
+};
+	
+}
+
+#endif