Source/System/FileIO/OSB/OSGOSBMaterialPoolElement.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
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   5  *                   Copyright (C) 2009 by the OpenSG Forum                  *
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   7  *                            www.opensg.org                                 *
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  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
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  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.                               *
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  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.                          *
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  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
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  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #include "OSGOSBMaterialPoolElement.h"
  40
  41 #include "OSGOSBRootElement.h"
  42
  43 #include "OSGGroup.h"
  44
  45 OSG_USING_NAMESPACE
  46
  47 /*-------------------------------------------------------------------------*/
  48 /* OSBMaterialPoolElement                                                  */
  49 /*-------------------------------------------------------------------------*/
  50
  51 /*! Reads the removed MaterialPool from an osb and converts it to a Group
  52     with a ContainerCollection attachment.
  53  */
  54
  55 /*-------------------------------------------------------------------------*/
  56 /* Static members                                                          */
  57
  58 OSBElementRegistrationHelper<OSBMaterialPoolElement>
  59     OSBMaterialPoolElement::_regHelper =
  60         OSBElementRegistrationHelper<OSBMaterialPoolElement>("MaterialPool");
  61
  62 /*-------------------------------------------------------------------------*/
  63 /* Constructor                                                             */
  64
  65 OSBMaterialPoolElement::OSBMaterialPoolElement(OSBRootElement *root) :
  66
  67      Inherited  (root, OSGOSBHeaderVersion200),
  68     _pCollection(NULL                        )
  69 {
  70 }
  71
  72 /*-------------------------------------------------------------------------*/
  73 /* Destructor                                                              */
  74
  75 OSBMaterialPoolElement::~OSBMaterialPoolElement(void)
  76 {
  77 }
  78
  79 /*-------------------------------------------------------------------------*/
  80 /* Reading                                                                 */
  81
  82 void
  83 OSBMaterialPoolElement::read(const std::string &typeName)
  84 {
  85     OSG_OSB_LOG(("OSBMaterialPoolElement::read: [%s]\n", typeName.c_str()));
  86
  87     BinaryReadHandler *rh = editRoot()->getReadHandler();
  88
  89     UInt8  ptrTypeId;
  90     UInt16 version;
  91
  92     rh->getValue(ptrTypeId);
  93     rh->getValue(version  );
  94
  95     GroupUnrecPtr group = Group              ::create();
  96     _pCollection        = ContainerCollection::create();
  97
  98     setContainer(group);
  99
 100     // set attachment on the Group
 101     group       ->addAttachment(_pCollection  );
 102     _pCollection->setName      ("MaterialPool");
 103
 104     std::string    fieldName;
 105     std::string    fieldTypeName;
 106     UInt32         fieldSize;
 107     PtrFieldListIt ptrFieldIt;
 108
 109     while(readFieldHeader("", fieldName, fieldTypeName, fieldSize))
 110     {
 111         if(fieldName == "materials")
 112         {
 113             // materials from MaterialPool need to be stored in the
 114             // ContainerCollection
 115             readMaterialsField();
 116         }
 117         else
 118         {
 119             // all other fields can be read directly
 120             readFieldContent(fieldName, fieldTypeName,
 121                              fieldSize, "", ptrFieldIt);
 122         }
 123     }
 124 }
 125
 126 void
 127 OSBMaterialPoolElement::postRead(void)
 128 {
 129     Inherited::postRead();
 130 }
 131
 132 /*-------------------------------------------------------------------------*/
 133 /* Writing                                                                 */
 134
 135 void
 136 OSBMaterialPoolElement::preWrite(FieldContainer * const fc)
 137 {
 138     OSG_OSB_LOG(("OSBMaterialPoolElement::preWrite\n"));
 139
 140     preWriteFieldContainer(fc, "");
 141 }
 142
 143 void
 144 OSBMaterialPoolElement::write(void)
 145 {
 146     OSG_OSB_LOG(("OSBMaterialPoolElement::write\n"));
 147
 148     if(getContainer() == NULL)
 149     {
 150         FWARNING(("OSBMaterialPoolElement::write: Attempt to write NULL.\n"));
 151         return;
 152     }
 153
 154     BinaryWriteHandler *wh = editRoot()->getWriteHandler();
 155
 156     wh->putValue(getFCPtrType(getContainer()));
 157     wh->putValue(getVersion()                );
 158
 159     writeFields("", true);
 160 }
 161
 162 /*! Reads MFMaterials from MaterialPool and stores the pointer ids so that
 163     they get put into ContainerCollection MFContainers.
 164  */
 165 void
 166 OSBMaterialPoolElement::readMaterialsField(void)
 167 {
 168     OSG_OSB_LOG(("OSBMaterialPoolElement::readMaterialsField\n"));
 169
 170     UInt32             ptrId;
 171     UInt32             numElements;
 172     OSBRootElement    *root        = editRoot();
 173     BinaryReadHandler *rh          = editRoot()->getReadHandler();
 174
 175     FieldDescriptionBase *contFieldDesc =
 176         _pCollection->getFieldDescription("containers");
 177     UInt32                contFieldId   = contFieldDesc->getFieldId();
 178
 179     root->editPtrFieldList().push_back(PtrFieldInfo(_pCollection,
 180                                                     contFieldId  ));
 181     PtrFieldInfo &pfi = root->editPtrFieldList().back();
 182
 183     rh->getValue(numElements);
 184
 185     for(UInt32 i = 0; i < numElements; ++i)
 186     {
 187         rh->getValue(ptrId);
 188         pfi.editIdStore().push_back(ptrId);
 189     }
 190 }