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#ifndef OPIE_RECORD_LIST_H
#define OPIE_RECORD_LIST_H
#include <qarray.h>
#include "otemplatebase.h"
#include "opimrecord.h"
/**
* Our List Iterator
* it behaves like STL or Qt
*
* for(it = list.begin(); it != list.end(); ++it )
* doSomeCoolStuff( (*it) );
*/
template <class T> class ORecordList;
template <class T = OPimRecord>
class ORecordListIterator {
friend class ORecordList<T>;
public:
typedef OTemplateBase<T> Base;
/**
* The c'tor used internally from
* ORecordList
*/
ORecordListIterator( const QArray<int>, const Base* );
/**
* The standard c'tor
*/
ORecordListIterator();
~ORecordListIterator();
ORecordListIterator( const ORecordListIterator& );
ORecordListIterator &operator=(const ORecordListIterator& );
/**
* a * operator ;)
* use it like this T = (*it);
*/
T operator*();
ORecordListIterator &operator++();
ORecordListIterator &operator--();
bool operator==( const ORecordListIterator& it );
bool operator!=( const ORecordListIterator& it );
private:
QArray<int> m_uids;
int m_current;
const Base* m_temp;
bool m_end : 1;
T m_record;
/* d pointer for future versions */
class IteratorPrivate;
IteratorPrivate *d;
};
/**
* The recordlist used as a return type
* from OPimAccessTemplate
*/
template <class T = OPimRecord >
class ORecordList {
public:
typedef OTemplateBase<T> Base;
typedef ORecordListIterator<T> Iterator;
/**
* c'tor
*/
ORecordList( const QArray<int>& ids,
const Base* );
~ORecordList();
/**
* the first iterator
*/
Iterator begin();
/**
* the end
*/
Iterator end();
/*
ConstIterator begin()const;
ConstIterator end()const;
*/
private:
QArray<int> m_ids;
const Base* m_acc;
};
/* ok now implement it */
template <class T>
ORecordListIterator<T>::ORecordListIterator() {
m_current = 0;
m_temp = 0l;
m_end = true;
m_record = T();
}
template <class T>
ORecordListIterator<T>::~ORecordListIterator() {
/* nothing to delete */
}
template <class T>
ORecordListIterator<T>::ORecordListIterator( const ORecordListIterator<T>& it) {
// qWarning("ORecordListIterator copy c'tor");
m_uids = it.m_uids;
m_current = it.m_current;
m_temp = it.m_temp;
m_end = it.m_end;
m_record = it.m_record;
}
template <class T>
ORecordListIterator<T> &ORecordListIterator<T>::operator=( const ORecordListIterator<T>& it) {
m_uids = it.m_uids;
m_current = it.m_current;
m_temp = it.m_temp;
m_end = it.m_end;
// m_record = it.m_record;
return *this;
}
template <class T>
T ORecordListIterator<T>::operator*() {
// qWarning("operator* %d %d", m_current, m_uids[m_current] );
if (!m_end )
m_record = m_temp->find( m_uids[m_current] );
else
m_record = T();
return m_record;
}
template <class T>
ORecordListIterator<T> &ORecordListIterator<T>::operator++() {
if (m_current < (int)m_uids.count() ) {
m_end = false;
++m_current;
}else
m_end = true;
return *this;
}
template <class T>
ORecordListIterator<T> &ORecordListIterator<T>::operator--() {
if ( m_current > 0 ) {
--m_current;
m_end = false;
} else
m_end = true;
return *this;
}
template <class T>
bool ORecordListIterator<T>::operator==( const ORecordListIterator<T>& it ) {
/* if both are at we're the same.... */
if ( m_end == it.m_end ) return true;
if ( m_uids != it.m_uids ) return false;
if ( m_current != it.m_current ) return false;
if ( m_temp != it.m_temp ) return false;
return true;
}
template <class T>
bool ORecordListIterator<T>::operator!=( const ORecordListIterator<T>& it ) {
return !(*this == it );
}
template <class T>
ORecordListIterator<T>::ORecordListIterator( const QArray<int> uids,
const Base* t )
: m_uids( uids ), m_current( 0 ), m_temp( t ), m_end( false )
{
}
template <class T>
ORecordList<T>::ORecordList( const QArray<int>& ids,
const Base* acc )
: m_ids( ids ), m_acc( acc )
{
}
template <class T>
ORecordList<T>::~ORecordList() {
/* nothing to do here */
}
template <class T>
ORecordList<T>::Iterator ORecordList<T>::begin() {
Iterator it( m_ids, m_acc );
return it;
}
template <class T>
ORecordList<T>::Iterator ORecordList<T>::end() {
Iterator it( m_ids, m_acc );
it.m_end = true;
it.m_current = m_ids.count();
return it;
}
#endif
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