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Diffstat (limited to 'sd/source/ui/toolpanel/ConstrainedIterator.hxx')
-rw-r--r-- | sd/source/ui/toolpanel/ConstrainedIterator.hxx | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/sd/source/ui/toolpanel/ConstrainedIterator.hxx b/sd/source/ui/toolpanel/ConstrainedIterator.hxx new file mode 100644 index 000000000000..ad2a17ef5e53 --- /dev/null +++ b/sd/source/ui/toolpanel/ConstrainedIterator.hxx @@ -0,0 +1,107 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |