Source/System/FileIO/OSB/OSGOSBGenericAttElement.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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  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.                               *
  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.                          *
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  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
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  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
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  37 \*---------------------------------------------------------------------------*/
  38
  39 #include "OSGOSBGenericAttElement.h"
  40
  41 #include "OSGOSBRootElement.h"
  42
  43 OSG_USING_NAMESPACE
  44
  45 /*-------------------------------------------------------------------------*/
  46 /* OSBGenericAttElement                                                    */
  47 /*-------------------------------------------------------------------------*/
  48
  49 /*! Skips a 1.x GenericAtt attachment in the stream. This is not handled
  50     correctly by the GenericElement, because the GenericAtt has a header
  51     format that is inconsistent with other elements.
  52  */
  53
  54 /*-------------------------------------------------------------------------*/
  55 /* Static members                                                          */
  56
  57 OSBElementRegistrationHelper<OSBGenericAttElement>
  58     OSBGenericAttElement::_regHelper =
  59         OSBElementRegistrationHelper<OSBGenericAttElement>("GenericAtt");
  60
  61 /*-------------------------------------------------------------------------*/
  62 /* Constructor                                                             */
  63
  64 OSBGenericAttElement::OSBGenericAttElement(OSBRootElement *root)
  65     : Inherited(root, OSGOSBHeaderVersion200)
  66 {
  67 }
  68
  69 /*-------------------------------------------------------------------------*/
  70 /* Destructor                                                              */
  71
  72 OSBGenericAttElement::~OSBGenericAttElement(void)
  73 {
  74 }
  75
  76 /*-------------------------------------------------------------------------*/
  77 /* Reading                                                                 */
  78
  79 void
  80 OSBGenericAttElement::read(const std::string &typeName)
  81 {
  82     OSG_OSB_LOG(("OSBGenericAttElement::read: [%s]\n", typeName.c_str()));
  83
  84     BinaryReadHandler *rh = editRoot()->getReadHandler();
  85
  86     // GenericAtt only exists in 1.x osb files, but has no ptrTypeTag
  87 //     UInt8  ptrTypeTag;
  88     UInt16 version;
  89
  90 //     rh->getValue(ptrTypeTag);
  91     rh->getValue(version   );
  92
  93     OSG_OSB_LOG(("OSBGenericAttElement::read: version: [%u]\n", version));
  94
  95     skipFields();
  96 }
  97
  98 void
  99 OSBGenericAttElement::postRead(void)
 100 {
 101     Inherited::postRead();
 102 }
 103
 104 /*-------------------------------------------------------------------------*/
 105 /* Writing                                                                 */
 106
 107 void
 108 OSBGenericAttElement::preWrite(FieldContainer * const fc)
 109 {
 110     OSG_OSB_LOG(("OSBGenericAttElement::preWrite\n"));
 111
 112     preWriteFieldContainer(fc, "");
 113 }
 114
 115 void
 116 OSBGenericAttElement::write(void)
 117 {
 118     OSG_OSB_LOG(("OSBGenericAttElement::write\n"));
 119
 120     if(getContainer() == NULL)
 121     {
 122         FWARNING(("OSBGenericAttElement::write: Attempt to write NULL.\n"));
 123         return;
 124     }
 125
 126     BinaryWriteHandler *wh = editRoot()->getWriteHandler();
 127
 128     wh->putValue(getFCPtrType(getContainer()));
 129     wh->putValue(getVersion()                );
 130
 131     writeFields("", true);
 132 }