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-/* -*- 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_SLIDESORTER_PAGE_ENUMERATION_HXX
-#define SD_SLIDESORTER_PAGE_ENUMERATION_HXX
-
-#include "pres.hxx"
-
-
-#include "model/SlsEnumeration.hxx"
-#include "model/SlsSharedPageDescriptor.hxx"
-
-#include <boost/function.hpp>
-#include <memory>
-
-namespace sd { namespace slidesorter { namespace model {
-
-class SlideSorterModel;
-
-
-/** Public class of page enumerations that delegates its calls to an
- implementation object that can filter pages by using a given predicate.
-
- @see PageEnumerationProvider
- The PageEnumerationProvider has methods for creating different types
- of page enumerations.
-*/
-class PageEnumeration
- : public Enumeration<SharedPageDescriptor>
-{
-public:
- /** Create a new page enumeration that enumerates a subset of the pages
- of the given model.
- @param rModel
- The new page enumeration enumerates the pages of this model.
- @param rPredicate
- This predicate determines which pages to include in the
- enumeration. Pages for which rPredicate returns <FALSE/> are
- exclude.
- */
- typedef ::boost::function<bool(const SharedPageDescriptor&)> PagePredicate;
- static PageEnumeration Create (
- const SlideSorterModel& rModel,
- const PagePredicate& rPredicate);
-
- /** This copy constructor creates a copy of the given enumeration.
- */
- PageEnumeration (const PageEnumeration& rEnumeration);
-
- virtual ~PageEnumeration();
-
- /** Create a new enumeration object. The ownership of the
- implementation object goes to the new object. Use this copy
- constructor only when you know what you are doing. When in doubt,
- use the one argument version.
- @param bCloneImpl
- When <TRUE/> is given this constructor behaves exactly like its
- one argument version. When <FALSE/> is given then the
- implementation object is not copied but moved from the given
- enumeration to the newly created one. The given enumeration
- thus becomes empty.
- */
- PageEnumeration (PageEnumeration& rEnumeration, bool bCloneImpl);
-
- /** Create and return an exact copy of the called object.
- */
- virtual ::std::auto_ptr<Enumeration<SharedPageDescriptor> > Clone (void);
-
- PageEnumeration& operator= (const PageEnumeration& rEnumeration);
-
- /** Return <TRUE/> when the enumeration has more elements, i.e. it is
- save to call GetNextElement() at least one more time.
- */
- virtual bool HasMoreElements (void) const;
-
- /** Return the next element of the enumeration. Call the
- HasMoreElements() before to make sure that there exists at least one
- more element. Calling this method with HasMoreElements() returning
- <FALSE/> is an error.
- */
- virtual SharedPageDescriptor GetNextElement (void);
-
- /** Rewind the enumeration so that the next call to GetNextElement()
- will return its first element.
- */
- virtual void Rewind (void);
-
-private:
- /// Implementation object.
- ::std::auto_ptr<Enumeration<SharedPageDescriptor> > mpImpl;
-
- /** This constructor expects an implementation object that holds
- the predicate that filters the pages.
- */
- PageEnumeration (::std::auto_ptr<Enumeration<SharedPageDescriptor> > pImpl);
-
- // Default constructor not implemented.
- PageEnumeration (void);
-};
-
-} } } // end of namespace ::sd::slidesorter::model
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */