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0021459: EDF 1495 SMESH: Manipulation of discrete elements with attributes

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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>
This commit is contained in:
eap 2012-07-19 13:14:09 +00:00
parent ff0bf10f4a
commit f738cc36e8
1 changed files with 48 additions and 15 deletions
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63
src/SMDS/SMDS_SetIterator.hxx
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@ -22,7 +22,7 @@
// SMESH SMDS : implementaion of Salome mesh data structure
// File : SMDS_SetIterator.hxx
// Created : Mon Feb 27 16:57:43 2006
// Created : Feb 27 2006
// Author : Edward AGAPOV (eap)
//
#ifndef SMDS_SetIterator_HeaderFile
@ -30,12 +30,12 @@
#include "SMDS_Iterator.hxx"
///////////////////////////////////////////////////////////////////////////////
/// Accessors to value pointed by iterator
///////////////////////////////////////////////////////////////////////////////
namespace SMDS {
///////////////////////////////////////////////////////////////////////////////
/// Accessors to value pointed by iterator
///////////////////////////////////////////////////////////////////////////////
template<typename VALUE,typename VALUE_SET_ITERATOR>
struct SimpleAccessor {
static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) *it; }
@ -50,6 +50,22 @@ namespace SMDS {
struct ValueAccessor {
static VALUE value(VALUE_SET_ITERATOR it) { return (VALUE) it->second; }
};
///////////////////////////////////////////////////////////////////////////////
/// Filters of value pointed by iterator
///////////////////////////////////////////////////////////////////////////////
template <typename VALUE>
struct PassAllValueFilter
{
bool operator()(const VALUE& t ) { return true; }
};
template <typename VALUE>
struct NonNullFilter
{
bool operator()(const VALUE& t ) { return bool( t ); }
};
}
///////////////////////////////////////////////////////////////////////////////
@ -61,26 +77,43 @@ namespace SMDS {
template<typename VALUE,
typename VALUE_SET_ITERATOR,
typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR> >
typename ACCESOR=SMDS::SimpleAccessor<VALUE,VALUE_SET_ITERATOR>,
typename VALUE_FILTER=SMDS::PassAllValueFilter<VALUE> >
class SMDS_SetIterator : public SMDS_Iterator<VALUE>
{
protected:
VALUE_SET_ITERATOR _beg, _end;
VALUE_FILTER _filter;
public:
SMDS_SetIterator(const VALUE_SET_ITERATOR & begin,
const VALUE_SET_ITERATOR & end)
{ init ( begin, end ); }
const VALUE_SET_ITERATOR & end,
const VALUE_FILTER& filter=VALUE_FILTER())
{ init ( begin, end, filter ); }
/// Initialization
virtual void init(const VALUE_SET_ITERATOR & begin,
const VALUE_SET_ITERATOR & end)
{ _beg = begin; _end = end; }
/// Return true if and only if there are other object in this iterator
virtual bool more() { return _beg != _end; }
const VALUE_SET_ITERATOR & end,
const VALUE_FILTER& filter=VALUE_FILTER())
{
_beg = begin;
_end = end;
_filter = filter;
if ( more() && !_filter( ACCESOR::value( _beg )))
next();
}
/// Return true iff there are other object in this iterator
virtual bool more()
{
return _beg != _end;
}
/// Return the current object and step to the next one
virtual VALUE next() { return ACCESOR::value( _beg++ ); }
virtual VALUE next()
{
VALUE ret = ACCESOR::value( _beg++ );
while ( more() && !_filter( ACCESOR::value( _beg )))
++_beg;
return ret;
}
};
///////////////////////////////////////////////////////////////////////////////