1 // Adapter for using the canvas with different applications
3 // Copyright (C) 2012 Thomas Geymayer <tomgey@gmail.com>
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.
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.
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
19 #ifndef SG_CANVAS_SYSTEM_ADAPTER_HXX_
20 #define SG_CANVAS_SYSTEM_ADAPTER_HXX_
22 #include "canvas_fwd.hxx"
23 #include <simgear/nasal/naref.h>
34 virtual ~SystemAdapter() {}
35 virtual FontPtr getFont(const std::string& name) const = 0;
36 virtual void addCamera(osg::Camera* camera) const = 0;
37 virtual void removeCamera(osg::Camera* camera) const = 0;
38 virtual osg::Image* getImage(const std::string& path) const = 0;
41 * Save passed reference to Nasal object from being deleted by the
44 virtual int gcSave(naRef r) = 0;
47 * Release an object previously passed to ::gcSave to allow it being
48 * cleaned up by the garbage collector.
50 virtual void gcRelease(int key) = 0;
53 * Call a Nasal function with the given environment and arguments.
55 virtual naRef callMethod( naRef code,
63 } // namespace simgear
65 #endif /* SG_CANVAS_SYSTEM_ADAPTER_HXX_ */