| VRS - The Virtual Rendering System |
| version 3.3 |
00001 /****************************************************************************** 00002 * VRS - The Virtual Rendering System 00003 * Copyright (C) 2000-2004 Computer Graphics Systems Group at the 00004 * Hasso-Plattner-Institute (HPI), Potsdam, Germany. 00005 * 00006 * This library is free software; you can redistribute it and/or modify it 00007 * under the terms of the GNU Lesser General Public License as published by 00008 * the Free Software Foundation; either version 2.1 of the License, or (at 00009 * your option) any later version. This library is distributed in the hope 00010 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied 00011 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU Lesser General Public License for more details. You should have received 00013 * a copy of the GNU Lesser+ General Public License along with this library; if 00014 * not, write to the FreeSoftware Foundation, Inc., 59 Temple Place, Suite 330, 00015 * Boston, MA, 02111-1307, USA. 00016 ******************************************************************************/ 00017 00018 // $Id: scenenodevisitor.h 4633 2005-01-03 01:43:11Z klimetschek $ 00019 // $Date: 2005-01-03 02:43:11 +0100 (Mon, 03 Jan 2005) $ 00020 // $Revision: 4633 $ 00021 // $State$ 00022 // $Author: klimetschek $ 00023 // 00024 // $Log$ 00025 // Revision 1.4 2005/01/03 01:43:08 klimetschek 00026 // - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io 00027 // - removed vrs.vcproj 00028 // minor things: 00029 // - added all glutexamples to vrs4glut.sln 00030 // - fixed some problems in glutexamples 00031 // - removed all project references from all VS projects (using solution wide project dependencies instead) 00032 // 00033 // Revision 1.3 2004/11/05 13:58:09 basch 00034 // Class comment changed (Doxygen style) 00035 // 00036 // Revision 1.2 2004/03/12 16:28:39 baumann 00037 // macros VRS_NAMESPACE_BEGIN/_END expanded and removed 00038 // 00039 // Revision 1.1 2004/02/16 16:42:08 baumann 00040 // - moved class VRS::SceneNode from "vrs/sg/" to "vrs/" 00041 // - renamed class VRS::SceneGraphVisitor to class VRS::SceneNodeVisitor 00042 // and moved it from "vrs/sg/" to "vrs/" 00043 // 00044 // Revision 1.5 2004/01/19 11:43:59 baumann 00045 // serialization mechanism improved 00046 // 00047 // Revision 1.4 2004/01/19 07:28:03 baumann 00048 // serialization mechanism improved 00049 // 00050 // Revision 1.3 2004/01/15 14:16:54 baumann 00051 // serialization mechanism improved 00052 // 00053 // Revision 1.2 2003/11/30 13:22:16 kirsch 00054 // reduced include dependencies 00055 // 00056 // Revision 1.1 2003/07/22 16:16:03 baumann 00057 // class Visitor renamed to class SceneNodeVisitor 00058 // 00059 // Revision 1.15 2002/10/31 14:35:43 kirsch 00060 // interface and code cleanup 00061 // 00062 // Revision 1.14 2002/10/29 10:32:53 baumann 00063 // macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed 00064 // 00065 // Revision 1.13 2002/10/28 17:27:18 buchholz 00066 // comment corrected. 00067 // 00068 // Revision 1.12 2002/10/28 17:23:12 buchholz 00069 // Comment for pushHint parameter added 00070 // 00071 // Revision 1.11 2002/10/28 17:12:05 buchholz 00072 // - traverse-method now returns Visitor::TraversalFlag instead of int 00073 // - Visitor and travers method do not take an Engine parameter any more 00074 // - Visitor::visitScene now gets a bool parameter pushHint. 00075 // - Now visitScene is called twice for each object: One call with 00076 // pushHint==true, when the object is pushed, one call with pushHint==false, 00077 // when the object is popped. 00078 // 00079 // Revision 1.10 2002/05/15 09:33:49 kirsch 00080 // removed unneeded includes 00081 // 00082 // Revision 1.9 2002/03/04 12:04:17 kersting 00083 // directory structure changes 00084 // 00085 // Revision 1.8 2002/03/03 21:44:26 kosta 00086 // VRS_TYPEINFO-macro rewritten 00087 // 00088 // Revision 1.7 2002/02/19 10:34:21 kosta 00089 // undone all changes since 2002-02-15 00090 // 00091 // Revision 1.4 2002/02/12 15:04:34 kosta 00092 // VRS container classes completely rewritten using STL 00093 // 00094 // Revision 1.3 2002/01/15 16:25:55 kosta 00095 // macros rewritten for a better namespace support 00096 // 00097 // Revision 1.2 2001/11/13 16:36:34 kirsch 00098 // changed line feed to unix style (removed control-M) 00099 // 00100 // Revision 1.1.1.1 2001/06/08 08:09:21 kirsch 00101 // imported alpha-version by olli 00102 // 00103 00104 #ifndef VRS_SCENENODEVISITOR_H 00105 #define VRS_SCENENODEVISITOR_H 00106 00107 #include <vrs/sharedobj.h> 00108 00109 namespace VRS { 00110 00111 class SceneNode; 00112 template<typename T> class Array; 00113 00115 class VRS_CORE_API SceneNodeVisitor : public SharedObj { 00116 00117 public: 00118 SceneNodeVisitor(); 00127 enum TraversalFlag { Stop, Continue }; 00128 VRS_SERIALIZABLE_CLASS_ENUM(TraversalFlag); 00129 virtual TraversalFlag visitBehavior(SharedObj* obj); 00130 virtual TraversalFlag visitScene(SharedObj* obj, bool pushHint); 00148 virtual void pathPush(SharedObj* object); 00149 virtual void pathPop(); 00150 unsigned int pathLength() const; 00151 SharedObj* pathObject(unsigned int index) const; 00161 VRS_TYPEINFO(SceneNodeVisitor, SharedObj); 00162 00163 private: 00164 SO<Array<SO<SharedObj> > > path_; 00165 }; // class SceneNodeVisitor 00166 00167 } // namespace VRS 00168 00169 #endif // VRS_SCENENODEVISITOR_H