Source/System/FieldContainer/Attachments/OSGVoidPAttachment.cpp

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *           Copyright (C) 2000,2001,2002 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 <cstdlib>
  40 #include <cstdio>
  41
  42 #include "OSGConfig.h"
  43
  44 #include "OSGAttachmentContainer.h"
  45 #include "OSGVoidPAttachment.h"
  46
  47 OSG_BEGIN_NAMESPACE
  48
  49 OSG_SIMPLEATTACHMENT_INST(VoidPAttachmentDesc);
  50
  51 template <>
  52 SimpleAttachment<VoidPAttachmentDesc>::TypeObject &
  53     SimpleAttachment<VoidPAttachmentDesc>::getType(void)
  54 {
  55     return _type;
  56 }
  57
  58 template <>
  59 const SimpleAttachment<VoidPAttachmentDesc>::TypeObject &
  60     SimpleAttachment<VoidPAttachmentDesc>::getType(void) const
  61 {
  62     return _type;
  63 }
  64
  65 template <>
  66 SimpleAttachment<VoidPAttachmentDesc>::TypeObject &
  67     SimpleAttachment<VoidPAttachmentDesc>::getClassType(void)
  68 {
  69     return _type;
  70 }
  71
  72 /*-------------------------------------------------------------------------*/
  73 /*                   Name Attachment Utility Functions                     */
  74
  75 /*!
  76   Return the void * attached to the container, NULL if none attached or
  77   container is NULL.
  78  */
  79
  80 void *getVoidP(AttachmentContainer * const pContainer)
  81 {
  82     if(pContainer == NULL)
  83         return NULL;
  84
  85     // Get attachment pointer
  86     Attachment *att =
  87         pContainer->findAttachment(
  88             VoidPAttachment::getClassType().getGroupId());
  89
  90     if(att == NULL)
  91         return NULL;
  92
  93     // Cast to name pointer
  94
  95     VoidPAttachment *voidP = dynamic_cast<VoidPAttachment *>(att);
  96
  97     if(voidP == NULL)
  98         return NULL;
  99
 100     return voidP->getFieldPtr()->getValue();
 101 }
 102
 103
 104 /*! Set the name attached to the container. If the container doesn't have a
 105     name attachement yet one is created.
 106  */
 107
 108 void setVoidP(AttachmentContainer * const  pContainer,
 109               void                *        pData,
 110               bool                         bInternal)
 111 {
 112     if(pContainer == NULL)
 113     {
 114         FFATAL(("setVoidP: no container?!?"));
 115         return;
 116     }
 117
 118     // Get attachment pointer
 119
 120     VoidPAttachmentUnrecPtr  voidP = NULL;
 121     Attachment              *att   =
 122         pContainer->findAttachment(
 123             VoidPAttachment::getClassType().getGroupId());
 124
 125     if(att == NULL)
 126     {
 127         voidP = VoidPAttachment::create();
 128
 129         pContainer->addAttachment(voidP);
 130     }
 131     else
 132     {
 133         voidP = dynamic_cast<VoidPAttachment *>(att);
 134
 135         if(voidP == NULL)
 136         {
 137             FFATAL(("setVoidP: VoidP Attachment is not castable to Name?!?"));
 138             return;
 139         }
 140     }
 141
 142     voidP->editFieldPtr()->setValue(pData);
 143     voidP->setInternal(bInternal);
 144 }
 145
 146 OSG_END_NAMESPACE