107 lines
3.2 KiB
C++
107 lines
3.2 KiB
C++
/*************************************************************************
|
|
*
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* Copyright 2008 by Sun Microsystems, Inc.
|
|
*
|
|
* OpenOffice.org - a multi-platform office productivity suite
|
|
*
|
|
* $RCSfile: ConstrainedIterator.hxx,v $
|
|
* $Revision: 1.4 $
|
|
*
|
|
* This file is part of OpenOffice.org.
|
|
*
|
|
* OpenOffice.org is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License version 3
|
|
* only, as published by the Free Software Foundation.
|
|
*
|
|
* OpenOffice.org is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License version 3 for more details
|
|
* (a copy is included in the LICENSE file that accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* version 3 along with OpenOffice.org. If not, see
|
|
* <http://www.openoffice.org/license.html>
|
|
* for a copy of the LGPLv3 License.
|
|
*
|
|
************************************************************************/
|
|
|
|
#ifndef SD_TOOLPANEL_CONSTRAINED_ITERATOR_HXX
|
|
#define SD_TOOLPANEL_CONSTRAINED_ITERATOR_HXX
|
|
|
|
#include <iterator>
|
|
|
|
namespace sd { namespace toolpanel {
|
|
|
|
|
|
template <class Container>
|
|
class Constraint
|
|
{
|
|
public:
|
|
virtual bool operator() (
|
|
const Container& rContainer,
|
|
const Container::iterator& rIterator) const = 0;
|
|
};
|
|
|
|
|
|
|
|
|
|
/** This iterator is a bidirectional iterator with something of random
|
|
access thrown in. It uses a constraint object to jump over
|
|
elements in the underlying container that do not meet the
|
|
constraint.
|
|
*/
|
|
template <class Container>
|
|
class ConstrainedIterator
|
|
: public ::std::bidirectional_iterator_tag
|
|
{
|
|
public:
|
|
typedef Container::value_type value_type;
|
|
typedef value_type& reference;
|
|
typedef const value_type& const_reference;
|
|
|
|
ConstrainedIterator (void);
|
|
ConstrainedIterator (
|
|
const Container& rContainer,
|
|
const Container::iterator& rIterator);
|
|
ConstrainedIterator (
|
|
const Container& rContainer,
|
|
const Container::iterator& rIterator,
|
|
const Constraint<Container>& pConstraint);
|
|
ConstrainedIterator (
|
|
const ConstrainedIterator& rIterator);
|
|
|
|
ConstrainedIterator& operator= (
|
|
const ConstrainedIterator& aIterator);
|
|
|
|
reference operator* (void);
|
|
const_reference operator* (void) const;
|
|
reference operator-> (void);
|
|
const_reference operator-> (void) const;
|
|
|
|
bool operator== (const ConstrainedIterator& aIterator) const;
|
|
bool operator!= (const ConstrainedIterator& aIterator) const;
|
|
|
|
ConstrainedIterator& operator++ (void);
|
|
ConstrainedIterator operator++ (int);
|
|
ConstrainedIterator& operator-- (void);
|
|
ConstrainedIterator operator-- (int);
|
|
|
|
ConstrainedIterator operator+ (int nValue) const;
|
|
ConstrainedIterator operator- (int nValue) const;
|
|
|
|
|
|
private:
|
|
const Container* mpContainer;
|
|
Container::iterator maIterator;
|
|
const Constraint<Container>* mpConstraint;
|
|
|
|
void AdvanceToNextValidElement (void);
|
|
void AdvanceToPreviousValidElement (void);
|
|
};
|
|
|
|
} } // end of namespace ::sd::toolpanel
|
|
|
|
#endif
|