openscenegraph
PrintVisitor
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2009 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSGUTIL_PRINTVISITOR
15#define OSGUTIL_PRINTVISITOR 1
16
17#include <osg/NodeVisitor>
18#include <osgUtil/Export>
19
20#include <ostream>
21
22namespace osgUtil {
23
24class OSGUTIL_EXPORT PrintVisitor : public osg::NodeVisitor
25{
26 public:
27
28 PrintVisitor(std::ostream& out, int indent=0, int step=2);
29
30 void apply(osg::Node& node);
31
32 std::ostream& output()
33 {
34 for(unsigned int i=0;i<_indent; ++i) _out<<" ";
35 return _out;
36 }
37
38 void enter() { _indent += _step; }
39 void leave() { _indent -= _step; }
40
41 protected:
42
43 PrintVisitor& operator = (const PrintVisitor&) { return *this; }
44
45 std::ostream& _out;
46 unsigned int _indent;
47 unsigned int _step;
48};
49
50}
51
52#endif
53