# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlCore/VLXVisitorLinkMapper.hpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #ifndef VLXVisitorLinkMapper_INCLUDE_ONCE
    00033 #define VLXVisitorLinkMapper_INCLUDE_ONCE
    00034
    00035 #include <vlCore/VLXVisitor.hpp>
    00036
    00037 namespace vl
    00038 {
    00040   class VLXVisitorLinkMapper: public VLXVisitor
    00041   {
    00042     VL_INSTRUMENT_CLASS(vl::VLXVisitorLinkMapper, VLXVisitor)
    00043
    00044   public:
    00045     typedef enum
    00046     {
    00047       NoError,
    00048       DuplicateID
    00049     } EError;
    00050
    00051   public:
    00052     VLXVisitorLinkMapper(std::map< std::string, ref<VLXStructure> >* map=NULL)
    00053     {
    00054       mLinkMap = map;
    00055       mError = NoError;
    00056     }
    00057
    00058     void setLinkMap(std::map< std::string, ref<VLXStructure> >* map)
    00059     {
    00060       mLinkMap = map;
    00061     }
    00062
    00063     void declareID(VLXStructure* obj)
    00064     {
    00065       if (obj->uid() != "#NULL")
    00066       {
    00067         const std::map< std::string, ref<VLXStructure> >::const_iterator it = mLinkMap->find(obj->uid());
    00068         if (it == mLinkMap->end())
    00069           (*mLinkMap)[obj->uid()] = obj;
    00070         else
    00071         {
    00072           if ( it->second != obj )
    00073           {
    00074             mError = DuplicateID;
    00075             Log::error( Say("ID '%s' used by '%s' is already assigned to another node '%s'!\n") << obj->uid() << obj->tag() << it->second->tag() );
    00076           }
    00077         }
    00078       }
    00079     }
    00080
    00081     virtual void visitStructure(VLXStructure* obj)
    00082     {
    00083       if (isVisited(obj))
    00084         return;
    00085
    00086       declareID(obj);
    00087
    00088       for(size_t i=0; i<obj->value().size(); ++i)
    00089       {
    00090         if (obj->value()[i].value().type() == VLXValue::Structure)
    00091           obj->value()[i].value().getStructure()->acceptVisitor(this);
    00092         else
    00093         if (obj->value()[i].value().type() == VLXValue::List)
    00094           obj->value()[i].value().getList()->acceptVisitor(this);
    00095       }
    00096     }
    00097
    00098     virtual void visitList(VLXList* list)
    00099     {
    00100       // this should happen only if the user manually creates loops
    00101       if (isVisited(list))
    00102       {
    00103         Log::warning("VLXVisitorLinkMapper: cycle detected on VLXList.\n");
    00104         return;
    00105       }
    00106
    00107       for(size_t i=0; i<list->value().size(); ++i)
    00108       {
    00109         if (list->value()[i].type() == VLXValue::Structure)
    00110           list->value()[i].getStructure()->acceptVisitor(this);
    00111         else
    00112         if (list->value()[i].type() == VLXValue::List)
    00113           list->value()[i].getList()->acceptVisitor(this);
    00114       }
    00115     }
    00116
    00117     /*
    00118     virtual void visitArray(VLXArrayString*)  {}
    00119
    00120     virtual void visitArray(VLXArrayIdentifier*) {}
    00121
    00122     virtual void visitArray(VLXArrayID*) {}
    00123     */
    00124
    00125     virtual void visitArray(VLXArrayInteger*)  {}
    00126
    00127     virtual void visitArray(VLXArrayReal*)  {}
    00128
    00129     EError error() const { return mError; }
    00130
    00131     void setError(EError err) { mError = err; }
    00132
    00133   private:
    00134     std::map< std::string, ref<VLXStructure> >* mLinkMap;
    00135     EError mError;
    00136   };
    00137 }
    00138
    00139 #endif

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:33.
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