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Clean up Canvas element creation
[simgear.git] / simgear / canvas / canvas_fwd.hxx
1 // Canvas forward declarations
2 //
3 // Copyright (C) 2012  Thomas Geymayer <tomgey@gmail.com>
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Library General Public
7 // License as published by the Free Software Foundation; either
8 // version 2 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 // Library General Public License for more details.
14 //
15 // You should have received a copy of the GNU Library General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
18
19 #ifndef SG_CANVAS_FWD_HXX_
20 #define SG_CANVAS_FWD_HXX_
21
22 #include <simgear/props/propsfwd.hxx>
23 #include <simgear/structure/SGWeakPtr.hxx>
24
25 #include <osg/ref_ptr>
26 #include <osgText/Font>
27
28 #include <boost/function.hpp>
29 #include <boost/shared_ptr.hpp>
30 #include <boost/weak_ptr.hpp>
31
32 #include <map>
33 #include <vector>
34
35 namespace simgear
36 {
37 namespace canvas
38 {
39
40   class Canvas;
41   typedef boost::shared_ptr<Canvas> CanvasPtr;
42   typedef boost::weak_ptr<Canvas> CanvasWeakPtr;
43
44   class Element;
45   typedef boost::shared_ptr<Element> ElementPtr;
46   typedef boost::weak_ptr<Element> ElementWeakPtr;
47
48   typedef std::map<std::string, const SGPropertyNode*> Style;
49   typedef boost::function<ElementPtr( const CanvasWeakPtr&,
50                                       const SGPropertyNode_ptr&,
51                                       const Style& )> ElementFactory;
52
53   typedef osg::ref_ptr<osgText::Font> FontPtr;
54
55   class Placement;
56   typedef boost::shared_ptr<Placement> PlacementPtr;
57   typedef std::vector<PlacementPtr> Placements;
58   typedef boost::function<Placements( const SGPropertyNode*,
59                                       CanvasPtr )> PlacementFactory;
60
61   class SystemAdapter;
62   typedef boost::shared_ptr<SystemAdapter> SystemAdapterPtr;
63
64 } // namespace canvas
65 } // namespace simgear
66
67
68 #endif /* SG_CANVAS_FWD_HXX_ */