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0021459: EDF 1495 SMESH: Manipulation of discrete elements with attributes
template<typename VALUE, typename VALUE_SET_ITERATOR, typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR>, + typename VALUE_FILTER=SMDS::PassAllValueFilter<VALUE> > class SMDS_SetIterator : public SMDS_Iterator<VALUE>
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@ -22,7 +22,7 @@
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// SMESH SMDS : implementaion of Salome mesh data structure
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// File : SMDS_SetIterator.hxx
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// Created : Mon Feb 27 16:57:43 2006
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// Created : Feb 27 2006
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// Author : Edward AGAPOV (eap)
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//
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#ifndef SMDS_SetIterator_HeaderFile
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@ -30,12 +30,12 @@
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#include "SMDS_Iterator.hxx"
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///////////////////////////////////////////////////////////////////////////////
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/// Accessors to value pointed by iterator
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///////////////////////////////////////////////////////////////////////////////
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namespace SMDS {
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///////////////////////////////////////////////////////////////////////////////
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/// Accessors to value pointed by iterator
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///////////////////////////////////////////////////////////////////////////////
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template<typename VALUE,typename VALUE_SET_ITERATOR>
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struct SimpleAccessor {
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static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) *it; }
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@ -50,6 +50,22 @@ namespace SMDS {
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struct ValueAccessor {
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static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) it->second; }
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};
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///////////////////////////////////////////////////////////////////////////////
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/// Filters of value pointed by iterator
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///////////////////////////////////////////////////////////////////////////////
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template <typename VALUE>
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struct PassAllValueFilter
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{
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bool operator()(const VALUE& t ) { return true; }
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};
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template <typename VALUE>
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struct NonNullFilter
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{
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bool operator()(const VALUE& t ) { return bool( t ); }
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};
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}
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///////////////////////////////////////////////////////////////////////////////
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@ -61,26 +77,43 @@ namespace SMDS {
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template<typename VALUE,
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typename VALUE_SET_ITERATOR,
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typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR> >
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typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR>,
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typename VALUE_FILTER=SMDS::PassAllValueFilter<VALUE> >
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class SMDS_SetIterator : public SMDS_Iterator<VALUE>
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{
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protected:
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VALUE_SET_ITERATOR _beg, _end;
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VALUE_FILTER _filter;
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public:
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SMDS_SetIterator(const VALUE_SET_ITERATOR & begin,
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const VALUE_SET_ITERATOR & end)
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{ init ( begin, end ); }
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const VALUE_SET_ITERATOR & end,
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const VALUE_FILTER& filter=VALUE_FILTER())
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{ init ( begin, end, filter ); }
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/// Initialization
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virtual void init(const VALUE_SET_ITERATOR & begin,
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const VALUE_SET_ITERATOR & end)
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{ _beg = begin; _end = end; }
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/// Return true if and only if there are other object in this iterator
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virtual bool more() { return _beg != _end; }
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const VALUE_SET_ITERATOR & end,
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const VALUE_FILTER& filter=VALUE_FILTER())
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{
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_beg = begin;
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_end = end;
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_filter = filter;
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if ( more() && !_filter( ACCESOR::value( _beg )))
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next();
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}
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/// Return true iff there are other object in this iterator
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virtual bool more()
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{
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return _beg != _end;
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}
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/// Return the current object and step to the next one
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virtual VALUE next() { return ACCESOR::value( _beg++ ); }
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virtual VALUE next()
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{
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VALUE ret = ACCESOR::value( _beg++ );
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while ( more() && !_filter( ACCESOR::value( _beg )))
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++_beg;
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return ret;
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}
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};
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///////////////////////////////////////////////////////////////////////////////
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