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// -*- C++ -*-
// -------------------------------------------------------------------
// MAdLib - Copyright (C) 2008-2009 Universite catholique de Louvain
//
// See the Copyright.txt and License.txt files for license information.
// You should have received a copy of these files along with MAdLib.
// If not, see <http://www.madlib.be/license/>
//
// Please report all bugs and problems to <contrib@madlib.be>
//
// Authors: Jean-Francois Remacle, Gaetan Compere
// -------------------------------------------------------------------
#ifndef H_MESHDATABASEITERATORS
#define H_MESHDATABASEITERATORS
#include <stdio.h>
namespace MAd {
template <class CONTAINER, class DATA, class CLASSIF>
class MDB_Iter
{
public:
CONTAINER *l;
CLASSIF g;
int closure;
typename CONTAINER::iterator current;
typename CONTAINER::iterator end;
MDB_Iter (CONTAINER *_l):l(_l),g(NULL),closure(0)
{
reset();
}
MDB_Iter (CONTAINER *_l,CLASSIF _g):l(_l),g((CLASSIF) _g),closure(0) {
reset();
}
MDB_Iter (CONTAINER *_l,CLASSIF _g,int _c):l(_l),g((CLASSIF) _g),closure(_c) {
/* if ((DATA::getDim() == 3) && (_c == 1)) { */
/* printf("Closure iterator not allowed for regions\n"); */
/* exit(1); */
/* } */
if (_c == 1) {
printf("Closure iterator not yet implemented \n");
exit(1);
}
reset();
}
virtual ~MDB_Iter() {}
inline void reset()
{
end = l->end();
current = l->begin();
if (!g) {
while(current != end && (*current)->deleted)
{
typename CONTAINER::iterator currentb = current;
current++;
delete *currentb;
l->erase(currentb);
}
}
else {
while(current != end && ((*current)->deleted || (*current)->g != g))
{
typename CONTAINER::iterator currentb = current;
current++;
if ((*currentb)->deleted) {
delete *currentb;
l->erase(currentb);
}
}
}
// if (!g && current!= end && (*current)->deleted)next();
// if (g && current!= end && ((*current)->deleted || (*current)->g != g)) next();
}
inline void cleanup()
{
current = l->begin();
while(next()){}
}
inline virtual DATA * next ()
{
if (current == end) return 0;
DATA *r = *current;
++ current;
if (!g) {
while(current != end && (*current)->deleted)
{
typename CONTAINER::iterator currentb = current;
current++;
delete *currentb;
l->erase(currentb);
}
}
else {
while(current != end && ((*current)->deleted || (*current)->g != g))
{
typename CONTAINER::iterator currentb = current;
current++;
if ((*currentb)->deleted) {
delete *currentb;
l->erase(currentb);
}
}
}
// if the result data was marked for deletion
// after previous call to next() look for the next one
if (r->deleted) {
if (current == end) return 0;
r = *current;
++ current;
if (!g) {
while(current != end && (*current)->deleted)
{
typename CONTAINER::iterator currentb = current;
current++;
delete *currentb;
l->erase(currentb);
}
}
else {
while(current != end && ((*current)->deleted || (*current)->g != g))
{
typename CONTAINER::iterator currentb = current;
current++;
if ((*currentb)->deleted) {
delete *currentb;
l->erase(currentb);
}
}
}
}
return r;
}
};
template <class CONTAINER, class DATA, class CLASSIF>
int countClassifiedElements (CONTAINER* c,CLASSIF g) {
MDB_Iter<CONTAINER,DATA,CLASSIF>* iter = new MDB_Iter<CONTAINER,DATA,CLASSIF>(c,g);
DATA* el = NULL;
int count = 0;
while ( (el = iter->next()) ) count++;
delete iter;
return count;
}
}
/* //report errors to koen.hillewaert@cenaero.be */
/* template <class CONTAINER, class DATA> */
/* class MDB_CIter: public MDB_Iter <CONTAINER,DATA> */
/* { */
/* public: */
/* pGEntity ge; */
/* MDB_CIter (CONTAINER *_l,pGEntity _g):MDB_Iter<CONTAINER,DATA>(_l),ge(_g) */
/* { */
/* reset(); */
/* } */
/* inline DATA * next () */
/* { */
/* if (current == end)return 0; */
/* DATA *r = *current; */
/* ++ current; */
/* while(current != end && */
/* (*current)->deleted && */
/* EN_whatIn(current) != ge) */
/* { */
/* typename CONTAINER::iterator currentb = current; */
/* current++; */
/* delete *currentb; */
/* l->erase(currentb); */
/* } */
/* return r; */
/* } */
/* }; */
#endif
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