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00001 #ifndef COIN_SOBASE_H 00002 #define COIN_SOBASE_H 00003 00004 /**************************************************************************\ 00005 * 00006 * This file is part of the Coin 3D visualization library. 00007 * Copyright (C) 1998-2007 by Systems in Motion. All rights reserved. 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License 00011 * ("GPL") version 2 as published by the Free Software Foundation. 00012 * See the file LICENSE.GPL at the root directory of this source 00013 * distribution for additional information about the GNU GPL. 00014 * 00015 * For using Coin with software that can not be combined with the GNU 00016 * GPL, and for taking advantage of the additional benefits of our 00017 * support services, please contact Systems in Motion about acquiring 00018 * a Coin Professional Edition License. 00019 * 00020 * See http://www.coin3d.org/ for more information. 00021 * 00022 * Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY. 00023 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 00024 * 00025 \**************************************************************************/ 00026 00027 #include <Inventor/SoType.h> 00028 #include <Inventor/lists/SoAuditorList.h> 00029 #include <Inventor/C/base/rbptree.h> 00030 00031 // ************************************************************************* 00032 00033 class SbDict; 00034 class SbString; 00035 class SoBaseList; 00036 class SoInput; 00037 class SoOutput; 00038 00039 // ************************************************************************* 00040 00041 class COIN_DLL_API SoBase { 00042 00043 public: 00044 static void initClass(void); 00045 00046 void ref(void) const; 00047 void unref(void) const; 00048 void unrefNoDelete(void) const; 00049 int32_t getRefCount(void) const; 00050 00051 void touch(void); 00052 00053 virtual SoType getTypeId(void) const = 0; 00054 SbBool isOfType(SoType type) const; 00055 static SoType getClassTypeId(void); 00056 00057 virtual SbName getName(void) const; 00058 virtual void setName(const SbName & newname); 00059 00060 static void addName(SoBase * const base, const char * const name); 00061 static void removeName(SoBase * const base, const char * const name); 00062 00063 virtual void startNotify(void); 00064 virtual void notify(SoNotList * l); 00065 00066 void addAuditor(void * const auditor, const SoNotRec::Type type); 00067 void removeAuditor(void * const auditor, const SoNotRec::Type type); 00068 const SoAuditorList & getAuditors(void) const; 00069 00070 virtual void addWriteReference(SoOutput * out, SbBool isfromfield = FALSE); 00071 SbBool shouldWrite(void); 00072 00073 static void incrementCurrentWriteCounter(void); 00074 static void decrementCurrentWriteCounter(void); 00075 00076 static SoBase * getNamedBase(const SbName & name, SoType type); 00077 static int getNamedBases(const SbName & name, SoBaseList & baselist, 00078 SoType type); 00079 00080 static SbBool read(SoInput * in, SoBase *& base, SoType expectedtype); 00081 static void setInstancePrefix(const SbString & c); 00082 00083 static void setTraceRefs(SbBool trace); 00084 static SbBool getTraceRefs(void); 00085 00086 static SbBool connectRoute(SoInput * in, 00087 const SbName & fromnodename, const SbName & fromfieldname, 00088 const SbName & tonodename, const SbName & tofieldname); 00089 00090 void assertAlive(void) const; 00091 static SbBool readRoute(SoInput * in); 00092 00093 protected: 00094 // Note: these are bitflags. 00095 enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }; 00096 00097 SoBase(void); 00098 virtual ~SoBase(); 00099 00100 virtual void destroy(void); 00101 00102 SbBool hasMultipleWriteRefs(void) const; 00103 SbBool writeHeader(SoOutput * out, SbBool isgroup, SbBool isengine) const; 00104 void writeFooter(SoOutput * out) const; 00105 virtual const char * getFileFormatName(void) const; 00106 00107 virtual SbBool readInstance(SoInput * in, unsigned short flags) = 0; 00108 00109 static uint32_t getCurrentWriteCounter(void); 00110 static void staticDataLock(void); 00111 static void staticDataUnlock(void); 00112 00113 private: 00114 static SbBool readReference(SoInput * in, SoBase *& base); 00115 static SbBool readBase(SoInput * in, SbName & classname, SoBase *& base); 00116 static SbBool readBaseInstance(SoInput * in, const SbName & classname, 00117 const SbName & refname, SoBase *& base); 00118 00119 static SoBase * createInstance(SoInput * in, const SbName & classname); 00120 static void flushInput(SoInput * in); 00121 00122 static void cleanClass(void); 00123 00124 // OBSOLETE! Just kept around for Coin 2.x ABI compatibility. 00125 static void freeLists(unsigned long, void * value); 00126 00127 static SoType classTypeId; 00128 00129 struct { 00130 int32_t referencecount : 27; 00131 unsigned int ingraph : 1; 00132 unsigned int alive : 4; 00133 // The number of bits should sum up to 32, so we don't allocate 00134 // more than one machine word on a 32-bit platform. 00135 } objdata; 00136 00137 void doNotify(SoNotList * l, const void * auditor, const SoNotRec::Type type); 00138 static void rbptree_notify_cb(void * auditor, void * type, void * closure); 00139 cc_rbptree auditortree; 00140 00141 // OBSOLETE! Just kept around for Coin 2.x ABI compatibility. 00142 static SbDict * name2obj; 00143 static SbDict * obj2name; 00144 00145 static SbString * refwriteprefix; 00146 00147 static SbBool tracerefs; 00148 static uint32_t writecounter; 00149 }; 00150 00151 #endif // !COIN_SOBASE_H
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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