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Diffstat (limited to 'sd/source/ui/slidesorter/model/SlsPageEnumeration.cxx')
-rw-r--r-- | sd/source/ui/slidesorter/model/SlsPageEnumeration.cxx | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/model/SlsPageEnumeration.cxx b/sd/source/ui/slidesorter/model/SlsPageEnumeration.cxx new file mode 100644 index 000000000000..0e472c04880e --- /dev/null +++ b/sd/source/ui/slidesorter/model/SlsPageEnumeration.cxx @@ -0,0 +1,284 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +#include "precompiled_sd.hxx" + +#include "model/SlideSorterModel.hxx" +#include "model/SlsPageDescriptor.hxx" + +using namespace ::sd::slidesorter; +using namespace ::sd::slidesorter::model; + +namespace { + +class PageEnumerationImpl + : public Enumeration<SharedPageDescriptor> +{ +public: + inline PageEnumerationImpl ( + const SlideSorterModel& rModel, + const PageEnumeration::PagePredicate& rPredicate); + virtual ~PageEnumerationImpl (void); + /** Create a copy of the called enumeration object. + */ + virtual inline ::std::auto_ptr<Enumeration<SharedPageDescriptor> > Clone (void); + + virtual inline bool HasMoreElements (void) const; + virtual inline SharedPageDescriptor GetNextElement (void); + virtual inline void Rewind (void); + +private: + const SlideSorterModel& mrModel; + const PageEnumeration::PagePredicate maPredicate; + int mnIndex; + + /** This constructor sets the internal page index to the given value. + It does not call AdvanceToNextValidElement() to skip elements that + do not fullfill Predicate. + */ + inline PageEnumerationImpl ( + const SlideSorterModel& rModel, + const PageEnumeration::PagePredicate& rPredicate, + int nIndex); + + /** Skip all elements that do not fullfill Predicate starting with the + one pointed to by mnIndex. + */ + inline void AdvanceToNextValidElement (void); + + // Default constructor not implemented. + PageEnumerationImpl (void); + // Assignment operator not implemented. + PageEnumerationImpl& operator= (const PageEnumerationImpl&); +}; + +} // end of anonymouse namespace + + + + +namespace sd { namespace slidesorter { namespace model { + + +PageEnumeration PageEnumeration::Create ( + const SlideSorterModel& rModel, + const PagePredicate& rPredicate) +{ + return PageEnumeration(::std::auto_ptr<Enumeration<SharedPageDescriptor> >( + new PageEnumerationImpl(rModel, rPredicate))); +} + + + + +PageEnumeration::PageEnumeration ( + ::std::auto_ptr<Enumeration<SharedPageDescriptor> > pImpl) + : mpImpl(pImpl) +{ +} + + + + +PageEnumeration::PageEnumeration ( + PageEnumeration& rEnumeration, + bool bCloneImpl) +{ + + if( bCloneImpl ) + { + mpImpl = rEnumeration.mpImpl->Clone(); + } + else + { + mpImpl = rEnumeration.mpImpl; + } +} + + + + +PageEnumeration::PageEnumeration (const PageEnumeration& rEnumeration ) +: sd::slidesorter::model::Enumeration<sd::slidesorter::model::SharedPageDescriptor>() +{ + mpImpl = rEnumeration.mpImpl->Clone(); +} + + + + +PageEnumeration::~PageEnumeration (void) +{ +} + + + + +PageEnumeration& PageEnumeration::operator= ( + const PageEnumeration& rEnumeration) +{ + mpImpl = rEnumeration.mpImpl->Clone(); + return *this; +} + + + + +::std::auto_ptr<Enumeration<SharedPageDescriptor> > PageEnumeration::Clone (void) +{ + return ::std::auto_ptr<Enumeration<SharedPageDescriptor> >( + new PageEnumeration (*this, true)); +} + + + + +bool PageEnumeration::HasMoreElements (void) const +{ + return mpImpl->HasMoreElements(); +} + + + +SharedPageDescriptor PageEnumeration::GetNextElement (void) +{ + return mpImpl->GetNextElement(); +} + + + + +void PageEnumeration::Rewind (void) +{ + return mpImpl->Rewind(); +} + +} } } // end of namespace ::sd::slidesorter::model + + + + +namespace { + +PageEnumerationImpl::PageEnumerationImpl ( + const SlideSorterModel& rModel, + const PageEnumeration::PagePredicate& rPredicate) + : mrModel(rModel), + maPredicate(rPredicate), + mnIndex(0) +{ + Rewind(); +} + + + + +PageEnumerationImpl::PageEnumerationImpl ( + const SlideSorterModel& rModel, + const PageEnumeration::PagePredicate& rPredicate, + int nIndex) + : mrModel(rModel), + maPredicate(rPredicate), + mnIndex(nIndex) +{ +} + + + + +PageEnumerationImpl::~PageEnumerationImpl (void) +{ +} + + + + +::std::auto_ptr<Enumeration<SharedPageDescriptor> > + PageEnumerationImpl::Clone (void) +{ + return ::std::auto_ptr<Enumeration<SharedPageDescriptor> >( + new PageEnumerationImpl(mrModel,maPredicate,mnIndex)); +} + + + + +bool PageEnumerationImpl::HasMoreElements (void) const +{ + return (mnIndex < mrModel.GetPageCount()); +} + + + + +SharedPageDescriptor PageEnumerationImpl::GetNextElement (void) +{ + SharedPageDescriptor pDescriptor (mrModel.GetPageDescriptor(mnIndex)); + + // Go to the following valid element. + mnIndex += 1; + AdvanceToNextValidElement(); + + return pDescriptor; +} + + + + +void PageEnumerationImpl::Rewind (void) +{ + // Go to first valid element. + mnIndex = 0; + AdvanceToNextValidElement(); +} + + + + + +void PageEnumerationImpl::AdvanceToNextValidElement (void) +{ + while (mnIndex < mrModel.GetPageCount()) + { + SharedPageDescriptor pDescriptor (mrModel.GetPageDescriptor(mnIndex)); + + // Test for the predicate being fullfilled. + if (pDescriptor.get()!=NULL && maPredicate(pDescriptor)) + { + // This predicate is valid. + break; + } + else + { + // Advance to next predicate. + mnIndex += 1; + } + } +} + +} // end of anonymous namespace + |