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Canvas: Proper fix for OpenVG init handling.
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1 // Canvas forward declarations
2 //
3 // Copyright (C) 2012  Thomas Geymayer <tomgey@gmail.com>
4 //
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License as
7 // published by the Free Software Foundation; either version 2 of the
8 // License, or (at your option) any later version.
9 //
10 // This program is distributed in the hope that it will be useful, but
11 // WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 // General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
18
19 #ifndef CANVAS_FWD_HPP_
20 #define CANVAS_FWD_HPP_
21
22 #include <boost/function.hpp>
23 #include <boost/shared_ptr.hpp>
24 #include <boost/weak_ptr.hpp>
25 #include <vector>
26
27 class SGPropertyNode;
28
29 class Canvas;
30 typedef boost::shared_ptr<Canvas> CanvasPtr;
31 typedef boost::weak_ptr<Canvas> CanvasWeakPtr;
32
33 class PropertyBasedElement;
34 typedef boost::shared_ptr<PropertyBasedElement> PropertyBasedElementPtr;
35 typedef boost::weak_ptr<PropertyBasedElement> PropertyBasedElementWeakPtr;
36
37 namespace canvas
38 {
39   const std::string VG_INIT_SIGNAL = "/sim/signals/vg-initialized-frame";
40
41   class Group;
42   class Image;
43   class MouseEvent;
44
45   class Placement;
46   typedef boost::shared_ptr<Placement> PlacementPtr;
47   typedef std::vector<PlacementPtr> Placements;
48   typedef boost::function<Placements( const SGPropertyNode*,
49                                       CanvasPtr )> PlacementFactory;
50
51   class Window;
52   typedef boost::shared_ptr<Window> WindowPtr;
53   typedef boost::weak_ptr<Window> WindowWeakPtr;
54 }
55
56 #endif /* CANVAS_FWD_HPP_ */