#include "canvas/visibility.h"
+#include "canvas/interpolated_curve.h"
#include "canvas/poly_item.h"
+#include "canvas/fill.h"
namespace ArdourCanvas {
-class LIBCANVAS_API Curve : public PolyItem
+class XFadeCurve;
+
+class LIBCANVAS_API Curve : public PolyItem, public InterpolatedCurve
{
-public:
- Curve (Group *);
-
+ public:
+ Curve (Canvas*);
+ Curve (Item*);
+
+ enum CurveFill {
+ None,
+ Inside,
+ Outside,
+ };
+
void compute_bounding_box () const;
void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
void set (Points const &);
+ void set_points_per_segment (uint32_t n);
+
bool covers (Duple const &) const;
+ void set_fill_mode (CurveFill cf) { curve_fill = cf; }
- 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;
+ Points samples;
+ Points::size_type n_samples;
+ uint32_t points_per_segment;
+ CurveFill curve_fill;
-
- static void compute_control_points (Points const &,
- Points&, Points&);
- static double* solve (std::vector<double> const&);
+ void interpolate ();
};
-
+
}
#endif