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00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States.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_FILE_ 00051 #define _SO_FILE_ 00052 00053 #include <Inventor/misc/SoChildList.h> 00054 #include <Inventor/nodes/SoNode.h> 00055 #include <Inventor/fields/SoSFString.h> 00056 #include <Inventor/fields/SoSFFilePathString.h> 00057 00058 class SoSensor; 00059 class SoFieldSensor; 00060 00062 // 00063 // Class: SoFile 00064 // 00065 // This node represents a subgraph that was read from a 00066 // named input file. When a file node is written out, just the field 00067 // containing the name of the file is written. (No children are 00068 // written out.) When one is encountered during reading, reading 00069 // continues from the named file, and all children found in the file 00070 // are added as hidden children of this node. 00071 // 00072 // Whenever the name of the input file changes 00073 // (name.setValue("foo.iv")), the old children are removed and the 00074 // contents of the new file is read in. The file node remembers 00075 // what directory the last file was read from, and will read the new 00076 // file from the same directory after checking the standard list of 00077 // directories (see the static methods on SoInput), assuming the 00078 // field isn't set to an absolute path name. 00079 // 00081 00082 class SoGroup; 00083 00135 class SoFile : public SoNode { 00136 00137 SO_NODE_HEADER(SoFile); 00138 00139 public: 00140 // Fields 00144 SoSFFilePathString name; 00145 00149 SoFile(); 00150 00154 SoGroup *copyChildren() const; 00155 00160 static void setSearchOK(SbBool flag); 00161 00166 static SbBool getSearchOK() { return m_searchOK; }; 00167 00168 private: 00169 // Traversal methods for all the actions: 00170 virtual void doAction(SoAction *action); 00171 virtual void callback(SoCallbackAction *action); 00172 virtual void search(SoSearchAction *action); 00173 virtual void GLRender(SoGLRenderAction *action); 00174 virtual void getBoundingBox(SoGetBoundingBoxAction *action); 00175 virtual void getMatrix(SoGetMatrixAction *action); 00176 virtual void handleEvent(SoHandleEventAction *action); 00177 virtual void pick(SoPickAction *action); 00178 virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action); 00179 00180 private: 00181 static void initClass(); 00182 static void exitClass(); 00183 00184 // Returns pointer to children 00185 virtual SoChildList *getChildren() const; 00186 00187 // Copies the contents of the given node into this instance. 00188 // This copies without re-reading the file. 00189 virtual void copyContents(const SoFieldContainer *fromFC, 00190 SbBool copyConnections); 00191 00192 private: 00193 // Reads stuff into instance of SoFile. Returns FALSE on error. 00194 virtual SbBool readInstance(SoInput *in, unsigned short flags); 00195 00196 virtual ~SoFile(); 00197 00198 private: 00199 SoChildList* children; 00200 00201 void nameChangedCallback(SoInput *upIn = NULL); 00202 00203 // These keep the image and filename fields in sync. 00204 SoFieldSensor *nameChangedSensor; 00205 static void nameChangedCB(void *, SoSensor *); 00206 00207 // FALSE on read error. 00208 SbBool readOK; 00209 static SbBool m_searchOK; 00210 00211 }; 00212 00213 #endif /* _SO_FILE_ */ 00214 00215