Merge branch 'canvasredesign' into cairocanvas

[ardour.git] / libs / canvas / canvas / poly_line.h

diff --git a/libs/canvas/canvas/poly_line.h b/libs/canvas/canvas/poly_line.h
index e870e51876690df8ed95c60e8966ebfe943e1bfe..16db9a69e2c2bcf299f49c9a323f20e3cd7879dc 100644 (file)
--- a/libs/canvas/canvas/poly_line.h
+++ b/libs/canvas/canvas/poly_line.h
@@ -1,19 +1,49 @@
+/*
+    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;
-       XMLNode* get_state () const;
-       void set_state (XMLNode const *);
+       
+        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;
 };
        
 }