1 // -*- Mode: C++; tab-width:2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi:tw=80:et:ts=2:sts=2
3 //
4 // -----------------------------------------------------------------------
5 //
6 // This file is part of RLVM, a RealLive virtual machine clone.
7 //
8 // -----------------------------------------------------------------------
9 //
10 // Copyright (C) 2009 Elliot Glaysher
11 //
12 // This program is free software; you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation; either version 3 of the License, or
15 // (at your option) any later version.
16 //
17 // This program is distributed in the hope that it will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 // GNU General Public License for more details.
21 //
22 // You should have received a copy of the GNU General Public License
23 // along with this program; if not, write to the Free Software
24 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
25 // -----------------------------------------------------------------------
26 
27 #ifndef SRC_SYSTEMS_BASE_RENDERABLE_H_
28 #define SRC_SYSTEMS_BASE_RENDERABLE_H_
29 
30 // An object that is renderable to screen.
31 class Renderable {
32  public:
~Renderable()33   virtual ~Renderable() {}
34 
35   // Renders this object to screen (and optionally writes metadata about what
36   // was rendered to |tree|).
37   virtual void Render(std::ostream* tree) = 0;
38 };
39 
40 #endif  // SRC_SYSTEMS_BASE_RENDERABLE_H_
41