1 files changed, 88 insertions, 0 deletions
diff --git a/libs/canvas/canvas/types.h b/libs/canvas/canvas/types.h
new file mode 100644
index 0000000000..20b0799ea6
--- /dev/null
+++ b/libs/canvas/canvas/types.h
@@ -0,0 +1,88 @@
+#ifndef __CANVAS_TYPES_H__
+#define __CANVAS_TYPES_H__
+
+#include <iostream>
+#include <vector>
+#include <stdint.h>
+#include <boost/optional.hpp>
+
+namespace ArdourCanvas
+{
+
+typedef double Coord;
+typedef double Distance;
+typedef uint32_t Color;
+extern Coord const COORD_MAX;
+extern Coord const CAIRO_MAX;
+
+extern Coord safe_add (Coord, Coord);
+
+struct Duple
+{
+	Duple ()
+		: x (0)
+		, y (0)
+	{}
+	
+	Duple (Coord x_, Coord y_)
+		: x (x_)
+		, y (y_)
+	{}
+		     
+	Coord x;
+	Coord y;
+
+	Duple translate (Duple) const;
+};
+
+
+extern Duple operator- (Duple const &);
+extern Duple operator+ (Duple const &, Duple const &);
+extern Duple operator- (Duple const &, Duple const &);
+extern Duple operator/ (Duple const &, double);
+extern std::ostream & operator<< (std::ostream &, Duple const &);
+
+struct Rect
+{
+	Rect ()
+		: x0 (0)
+		, y0 (0)
+		, x1 (0)
+		, y1 (0)
+	{}
+	
+	Rect (Coord x0_, Coord y0_, Coord x1_, Coord y1_)
+		: x0 (x0_)
+		, y0 (y0_)
+		, x1 (x1_)
+		, y1 (y1_)
+	{}
+		
+	Coord x0;
+	Coord y0;
+	Coord x1;
+	Coord y1;
+
+	boost::optional<Rect> intersection (Rect const &) const;
+	Rect extend (Rect const &) const;
+	Rect translate (Duple) const;
+	Rect expand (Distance) const;
+	bool contains (Duple) const;
+	Rect fix () const;
+
+	Distance width () const {
+		return x1 - x0;
+	}
+
+	Distance height () const {
+		return y1 - y0;
+	}
+};
+
+extern std::ostream & operator<< (std::ostream &, Rect const &);
+
+typedef std::vector<Duple> Points;
+
+}
+	
+#endif