| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
| |