X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fcanvas%2Fcanvas%2Fpoly_line.h;h=04b05f5df1f33b2b7fede5a787e2bb29bf5874db;hb=2a5921ecf159d49597264a9328dc899bba55e57e;hp=b89b1f2c93b451ad2da3308bdd2ba0f2fb4d7e3c;hpb=84fb0a8dceda063d58b946cb891c3e21214c8f75;p=ardour.git

diff --git a/libs/canvas/canvas/poly_line.h b/libs/canvas/canvas/poly_line.h
index b89b1f2c93..04b05f5df1 100644
--- a/libs/canvas/canvas/poly_line.h
+++ b/libs/canvas/canvas/poly_line.h
@@ -1,17 +1,51 @@
+/*
+    Copyright (C) 2011-2013 Paul Davis
+    Author: Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
 #ifndef __CANVAS_POLY_LINE_H__
 #define __CANVAS_POLY_LINE_H__
 
+#include "canvas/visibility.h"
 #include "canvas/poly_item.h"
 #include "canvas/outline.h"
 
 namespace ArdourCanvas {
 
-class PolyLine : public PolyItem
+class LIBCANVAS_API PolyLine : public PolyItem
 {
-public:
-	PolyLine (Group *);
-
+  public:
+	PolyLine (Canvas*);
+	PolyLine (Item*);
+	
 	void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
+
+	virtual void set_steps (Points const &, bool stepped);
+	
+        bool covers (Duple const &) const;
+	/**
+	 * Set the distance at which a point will be considered to be covered
+	 * by the line. For the definition of "distance" see
+	 * utils.cc:distance_to_segment_squared()
+	 */
+	void set_covers_threshold (double);
+
+  private:
+	double _threshold;
 };
 	
 }