X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Fcanvas%2Frectangle.h;h=351074cc42ae26962648bed9551c3f7494c7cd81;hb=4d3cd732c93dd64b8768ec5f8398999f521ee6f0;hp=5df10fbc606c1772b3ce5294a025c4ebc3798fec;hpb=ced4378d0914bcfb926267772c45d1d23f3bed38;p=ardour.git

diff --git a/libs/canvas/canvas/rectangle.h b/libs/canvas/canvas/rectangle.h
index 5df10fbc60..351074cc42 100644
--- a/libs/canvas/canvas/rectangle.h
+++ b/libs/canvas/canvas/rectangle.h
@@ -34,7 +34,7 @@ public:
 	Rectangle (Canvas*, Rect const &);
 	Rectangle (Item*);
 	Rectangle (Item*, Rect const &);
-	
+
 	void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
 	void compute_bounding_box () const;
 
@@ -64,6 +64,17 @@ public:
 	void set_x1 (Coord);
 	void set_y1 (Coord);
 
+        /** return @param y as a floating point fraction of the overall
+         *  height of the rectangle. @param y is in canvas coordinate space.
+         *
+         *  A value of zero indicates that y is at the bottom of the
+         *  rectangle; a value of 1 indicates that y is at the top.
+         *
+         *  Will return zero if there is no bounding box or if y
+         *  is outside the bounding box.
+         */
+        double vertical_fraction (double y) const;
+
 	enum What {
 		NOTHING = 0x0,
 		LEFT = 0x1,
@@ -76,10 +87,6 @@ public:
 	void set_outline_what (What);
 	void set_outline_all () { set_outline_what (ArdourCanvas::Rectangle::ALL); }
 
-  protected:
-	void render_self (Rect const &, Cairo::RefPtr<Cairo::Context>, Rect) const;
-	Rect get_self_for_render () const;
-
   private:
 	/** Our rectangle; note that x0 may not always be less than x1
 	 *  and likewise with y0 and y1.