85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef INCLUDED_PDFI_TREEVISITING_HXX
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#define INCLUDED_PDFI_TREEVISITING_HXX
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#include <sal/config.h>
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#include <list>
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namespace pdfi
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{
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class PDFIProcessor;
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class StyleContainer;
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struct HyperlinkElement;
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struct TextElement;
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struct ParagraphElement;
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struct FrameElement;
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struct PolyPolyElement;
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struct ImageElement;
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struct PageElement;
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struct DocumentElement;
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struct EmitContext;
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struct Element;
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/** To be visited by all tree element types
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Visitor interface from the "visitor pattern". Implementor gets
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called with actual tree node instances.
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*/
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struct ElementTreeVisitor
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{
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virtual void visit( HyperlinkElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( TextElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( ParagraphElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( FrameElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( PolyPolyElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( ImageElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( PageElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual void visit( DocumentElement&, const std::list< Element* >::const_iterator& ) = 0;
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virtual ~ElementTreeVisitor() {}
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};
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typedef boost::shared_ptr<ElementTreeVisitor> ElementTreeVisitorSharedPtr;
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/** Visitee interface
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To be implemented by every tree node that needs to be
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visitable.
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*/
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struct ElementTreeVisitable
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{
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virtual void visitedBy( ElementTreeVisitor&, const std::list< Element* >::const_iterator& rParentIt ) = 0;
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};
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typedef boost::shared_ptr<ElementTreeVisitable> ElementTreeVisitableSharedPtr;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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