166 lines
6.2 KiB
C++
166 lines
6.2 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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Revision 1.5 2005/07/06 15:28:11 ganovelli
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aggiornamento di alcuni path
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Revision 1.4 2004/04/05 13:53:37 ganovelli
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Aggiunto typename
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Revision 1.3 2004/03/31 22:36:44 ganovelli
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First Working Release (with this comment)
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/****************************************************************************/
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#ifndef __VCGLIB_ENTRIES__
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#define __VCGLIB_ENTRIES__
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namespace vcg {
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// EntryCATBase: base class for the entry of the allocation table
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// templated over the container type
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template <class STL_CONT>
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struct EntryCATBase{
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EntryCATBase(STL_CONT & _c):c(_c){};
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typename typename typename STL_CONT::value_type * Start() const;
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virtual bool Empty(){return true;};
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const STL_CONT * C();
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virtual void Push_back(const int &){};
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virtual void Reserve(const int & s){};
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virtual void Resize(const int & s){};
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const bool operator < (const EntryCATBase<STL_CONT> & other) const;
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private:
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STL_CONT & c;
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};
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//EntryCAT: entry for the case of optional core types (matches with CAT)
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template <class STL_CONT,class ATTR_TYPE >
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struct EntryCAT: public EntryCATBase<STL_CONT>{
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typedef ATTR_TYPE attr_type;
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EntryCAT(STL_CONT & _c) : EntryCATBase<STL_CONT>(_c){};
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std::vector<ATTR_TYPE> & Data(){return data;}
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void Push_back(const int & n){ for(int i = 0; i < n ; ++i) data.push_back(ATTR_TYPE());}
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virtual void Reserve(const int & s){data.reserve(s);};
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virtual void Resize(const int & s){data.resize(s);};
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private:
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std::vector<ATTR_TYPE> data;
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};
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//----------------------EntryCAT: implementation ----------------------------------------
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template <class STL_CONT>
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const bool EntryCATBase<STL_CONT>:: operator < (const EntryCATBase<STL_CONT> & other) const{
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return (Start() < other.Start());
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}
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template <class STL_CONT>
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typename typename STL_CONT::value_type * EntryCATBase<STL_CONT>::Start()const {
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return c.Pointer2begin();
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}
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template <class STL_CONT>
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const STL_CONT * EntryCATBase<STL_CONT>::C(){
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return &c;
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}
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// -----------------------------------------------------------------------------------------
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// WrapBase: used to implement a list of pointers to std::vector of different types
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// Wrap: derived from WrapBase (to take the function and from std::vector)
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struct WrapBase{
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virtual void Push_back(const int & n)=0;
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virtual void Reserve(const int & n)=0;
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virtual void Resize(const int & n)=0;
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};
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// (note) double hineritance is not necessary, just handy
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template <class ATTR_TYPE>
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struct Wrap: public WrapBase,std::vector<ATTR_TYPE>{
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virtual void Push_back(const int & n){for (int i = 0 ; i < n; ++i) push_back( ATTR_TYPE());}
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virtual void Reserve(const int & n){reserve(n);}
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virtual void Resize(const int & n){resize(n);}
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};
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//-------------------------------------------------------------------------------------------
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// -----------------------------------------------------------------------------------------
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// EntryCATMulti: entry type for multiple user data
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template <class STL_CONT>
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struct EntryCATMulti: public EntryCATBase<STL_CONT>{
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EntryCATMulti(STL_CONT & _c) : EntryCATBase<STL_CONT>(_c){};
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std::list<WrapBase * > & Data(){return data;}
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void push_back(const int & n ){
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std::list< void * >::iterator ite;
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for(ite = data.begin(); ite != data.end(); ++ite)
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(*ite)->Push_back(n);
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}
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virtual bool Empty(){return data.empty();};
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virtual void Reserve(const int & n){
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std::list<WrapBase * >::iterator ite;
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for(ite = data.begin(); ite != data.end(); ++ite)
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(*ite)->Reserve(n);
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};
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virtual void Resize(const int & n){
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std::list<WrapBase * >::iterator ite;
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for(ite = data.begin(); ite != data.end(); ++ite)
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(*ite)->Resize(n);
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};
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private:
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std::list< WrapBase * > data;
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};
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//----------------------------------------------------------------------------------
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//----------------------------------------------------------------------------------
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// TempData implements a handle to one of the vector od data stored in EntryCATMulti
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template <class STL_CONT, class ATTR_TYPE>
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class TempData{
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public:
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TempData(std::vector<ATTR_TYPE> *d):item(d){};
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typedef typename ATTR_TYPE attr_type;
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std::vector<ATTR_TYPE> * Item(){return item;};
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std::vector<ATTR_TYPE> * item;
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ATTR_TYPE & operator [](typename typename STL_CONT::value_type * v)
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{
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int pos = CATEntry<STL_CONT, EntryCATMulti<STL_CONT> >::Ord(v);
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return (*item)[pos];
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}
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};
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//----------------------------------------------------------------------------------
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}; // end namespace vcg
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#endif |