00001 /*======================================================================= 00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States. Use of a copyright notice is precautionary only and does not 00007 * imply publication or disclosure. 00008 * 00009 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: 00010 * Use, duplication or disclosure by the Government is subject to restrictions 00011 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights 00012 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or 00013 * in similar or successor clauses in the FAR, or the DOD or NASA FAR 00014 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc., 00015 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311. 00016 * 00017 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY 00018 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION, 00019 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY 00020 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON 00021 * GRAPHICS, INC. 00022 **=======================================================================*/ 00023 /*======================================================================= 00024 ** Author : Paul S. Strauss (MMM yyyy) 00025 **=======================================================================*/ 00026 /*======================================================================= 00027 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00028 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00029 *** *** 00030 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00031 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00032 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00033 *** *** 00034 *** RESTRICTED RIGHTS LEGEND *** 00035 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00036 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00037 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00038 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00039 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00040 *** *** 00041 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00042 *** BORDEAUX, FRANCE *** 00043 *** ALL RIGHTS RESERVED *** 00044 **=======================================================================*/ 00045 /*======================================================================= 00046 ** Modified by : VSG (MMM YYYY) 00047 **=======================================================================*/ 00048 00049 00050 #ifndef _SO_ANNOTATION_ 00051 #define _SO_ANNOTATION_ 00052 00053 #include <Inventor/nodes/SoSeparator.h> 00054 #include <Inventor/SoType.h> 00055 00057 // 00058 // Class: SoAnnotation 00059 // 00060 // Annotation group node: delays rendering its children until all 00061 // other nodes have been traversed, turning off depth buffer 00062 // comparisons first. The result is that the shapes under the 00063 // annotation node are rendered on top of the rest of the scene. 00064 // 00065 // Note that if more than one annotation node is present in a graph, 00066 // the order in which they are traversed determines the stacking 00067 // order - later nodes are rendered on top of earlier ones. Also note 00068 // that since depth buffer comparisons are disabled, complex 3D 00069 // objects may not be rendered correctly when used under annotation 00070 // nodes. 00071 // 00072 // All non-rendering actions are inherited as is from SoSeparator. 00073 // 00075 00130 class SoAnnotation : public SoSeparator { 00131 00132 SO_NODE_HEADER(SoAnnotation); 00133 00134 public: 00135 00136 // No fields 00137 00141 SoAnnotation(); 00142 00143 private: 00144 // Implement actions 00145 virtual void GLRender(SoGLRenderAction *action); 00146 virtual void GLRenderBelowPath(SoGLRenderAction *action); 00147 virtual void GLRenderInPath(SoGLRenderAction *action); 00148 virtual void GLRenderOffPath(SoGLRenderAction *action); 00149 virtual int32_t getRenderUnitID() const; 00150 00151 private: 00152 static void initClass(); 00153 static void exitClass(); 00154 static void setNoDelay(SbBool flag); 00155 static SbBool getNoDelay(); 00156 00157 private: 00158 // Destructor 00159 virtual ~SoAnnotation(); 00160 00161 private: 00162 #ifdef _WIN32 00163 static SbBool noDelay; 00164 #else 00165 static SbBool noDelay; 00166 #endif 00167 }; 00168 00169 #endif /* _SO_ANNOTATION_ */ 00170 00171