Change some declarations from 'struct' to 'class' (and vice-versa)

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

diff --git a/libs/canvas/canvas/polygon.h b/libs/canvas/canvas/polygon.h
index 3a624d867dc40dd432786e2ddc98a4295a9a27c0..9703eb46e9325c3b59236df3a0ed24b8d87c3982 100644 (file)
--- a/libs/canvas/canvas/polygon.h
+++ b/libs/canvas/canvas/polygon.h
@@ -1,20 +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_POLYGON_H__
 #define __CANVAS_POLYGON_H__
 
+#include "canvas/visibility.h"
 #include "canvas/poly_item.h"
 #include "canvas/outline.h"
 #include "canvas/fill.h"
 
 namespace ArdourCanvas {
 
-class Polygon : public PolyItem, public Fill
+class LIBCANVAS_API Polygon : public PolyItem
 {
 public:
-       Polygon (Group *);
+       Polygon (Canvas*);
+       Polygon (Item*);
+        virtual ~Polygon();
 
        void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
-       XMLNode* get_state () const;
-       void set_state (XMLNode const *);
+       void compute_bounding_box () const;
+        bool covers (Duple const &) const;
+
+  protected:
+    mutable float* multiple;
+    mutable float* constant;
+    mutable Points::size_type cached_size;
+    
+    void cache_shape_computation () const;
 };
        
 }