Source/System/FileIO/OSB/OSGOSBNodeElement.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *                   Copyright (C) 2006 by the OpenSG Forum                  *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
  31  *                                                                           *
  32  *                                                                           *
  33  *                                                                           *
  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #include "OSGOSBNodeElement.h"
  40
  41 #include "OSGOSBRootElement.h"
  42 #include "OSGNode.h"
  43
  44 OSG_USING_NAMESPACE
  45
  46 /*-------------------------------------------------------------------------*/
  47 /* OSBNodeElement                                                         */
  48 /*-------------------------------------------------------------------------*/
  49
  50 /*-------------------------------------------------------------------------*/
  51 /* Static members                                                          */
  52
  53 OSBElementRegistrationHelper<OSBNodeElement>
  54     OSBNodeElement::_regHelper =
  55         OSBElementRegistrationHelper<OSBNodeElement>("Node");
  56
  57 /*-------------------------------------------------------------------------*/
  58 /* Constructor                                                             */
  59
  60 OSBNodeElement::OSBNodeElement(OSBRootElement *root)
  61     : Inherited(root, OSGOSBHeaderVersion200)
  62 {
  63 }
  64
  65 /*-------------------------------------------------------------------------*/
  66 /* Destructor                                                              */
  67
  68 OSBNodeElement::~OSBNodeElement(void)
  69 {
  70 }
  71
  72 /*-------------------------------------------------------------------------*/
  73 /* Reading                                                                 */
  74
  75 void
  76 OSBNodeElement::read(const std::string &typeName)
  77 {
  78     OSG_OSB_LOG(("OSBNodeElement::read [%s]\n", typeName.c_str()));
  79
  80     BinaryReadHandler *rh        = editRoot()->getReadHandler();
  81     UInt8              fcPtrType;
  82     UInt16             version;
  83
  84     rh->getValue(fcPtrType);
  85     rh->getValue(version  );
  86
  87     OSG_OSB_LOG(("OSBNodeElement::read: version: [%u]\n", version));
  88
  89     if(fcPtrType != OSBCommonElement::FCPtrNode)
  90     {
  91         FFATAL(("OSBNodeElement::read: fcPtrType has unexpected value.\n"));
  92
  93         skipFields();
  94         return;
  95     }
  96
  97     NodeUnrecPtr node = Node::create();
  98
  99     setContainer(node);
 100
 101     if(version == OSGOSBHeaderVersion100)
 102     {
 103         std::string    fieldName;
 104         std::string    fieldTypeName;
 105         UInt32         fieldSize;
 106         PtrFieldListIt ptrFieldIt;
 107
 108         while(readFieldHeader("", fieldName, fieldTypeName, fieldSize))
 109         {
 110             // some fields need to be duplicated for the two replacement chunks
 111             if(fieldName == "volume")
 112             {
 113                 // parent fields are ignored
 114                 UInt32 fieldType = 0;
 115                 rh->getValue(fieldType);
 116
 117                 switch(fieldSize)
 118                 {
 119                     case 30:
 120                     {
 121                         UInt16 sState;
 122                         Pnt3f  vMin;
 123                         Pnt3f  vMax;
 124
 125                         rh->getValue(sState );
 126
 127                         rh->getValue(vMin[0]);
 128                         rh->getValue(vMin[1]);
 129                         rh->getValue(vMin[2]);
 130                         rh->getValue(vMax[0]);
 131                         rh->getValue(vMax[1]);
 132                         rh->getValue(vMax[2]);
 133
 134                         node->editVolume().setState (sState    );
 135                         node->editVolume().setBounds(vMin, vMax);
 136                     }
 137                     break;
 138
 139                     case 22:
 140                     {
 141                         UInt16 sState;
 142                         Pnt3f  vCenter;
 143                         Real32 fRadius;
 144
 145                         rh->getValue(sState    );
 146
 147                         rh->getValue(vCenter[0]);
 148                         rh->getValue(vCenter[1]);
 149                         rh->getValue(vCenter[2]);
 150                         rh->getValue(fRadius);
 151
 152                         node->editVolume().setState (sState              );
 153                         node->editVolume().setBounds(vCenter[0] - fRadius,
 154                                                      vCenter[1] - fRadius,
 155                                                      vCenter[2] - fRadius,
 156                                                      vCenter[0] + fRadius,
 157                                                      vCenter[1] + fRadius,
 158                                                      vCenter[2] + fRadius);
 159                     }
 160                     break;
 161
 162                     default:
 163                         fprintf(stderr,
 164                                 "unknown volume type with size %d, skipping\n",
 165                                 fieldSize                                     );
 166
 167                         rh->skip(fieldSize - sizeof(UInt32));
 168
 169                         break;
 170                 }
 171             }
 172             else
 173             {
 174                 readFieldContent(fieldName,
 175                                  fieldTypeName,
 176                                  fieldSize, "",
 177                                  ptrFieldIt   );
 178             }
 179         }
 180     }
 181     else
 182     {
 183         readFields("", "");
 184     }
 185 }
 186
 187 void
 188 OSBNodeElement::postRead(void)
 189 {
 190 }
 191
 192 /*-------------------------------------------------------------------------*/
 193 /* Writing                                                                 */
 194
 195 void
 196 OSBNodeElement::preWrite(FieldContainer * const fc)
 197 {
 198     OSG_OSB_LOG(("OSBNodeElement::preWrite\n"));
 199
 200     preWriteFieldContainer(fc, "");
 201 }
 202
 203 void
 204 OSBNodeElement::write(void)
 205 {
 206     OSG_OSB_LOG(("OSBNodeElement::write\n"));
 207
 208     if(getContainer() == NULL)
 209     {
 210         FWARNING(("OSBNodeElement::write: Attempt to write NULL.\n"));
 211         return;
 212     }
 213
 214     BinaryWriteHandler *wh = editRoot()->getWriteHandler();
 215
 216     wh->putValue(OSBCommonElement::FCPtrNode);
 217     wh->putValue(getVersion()               );
 218
 219     const OSBRootElement *root         = getRoot();
 220           Node           *node         = dynamic_cast<Node*>(getContainer());
 221           std::string     doSkipFields = "";
 222
 223     if(node->getVolume ().isStatic         () == false &&
 224        node->getVolume ().isInfinite       () == false &&
 225        root->getOptions().forceVolumeExport() == false  )
 226     {
 227         doSkipFields += "'volume'";
 228     }
 229
 230     writeFields(doSkipFields, true);
 231 }