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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITING_HXX
#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITING_HXX
#include <sal/config.h>
#include <list>
namespace pdfi
{
struct HyperlinkElement;
struct TextElement;
struct ParagraphElement;
struct FrameElement;
struct PolyPolyElement;
struct ImageElement;
struct PageElement;
struct DocumentElement;
struct Element;
/** To be visited by all tree element types
Visitor interface from the "visitor pattern". Implementor gets
called with actual tree node instances.
*/
struct ElementTreeVisitor
{
virtual void visit( HyperlinkElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( TextElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( ParagraphElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( FrameElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( PolyPolyElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( ImageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( PageElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual void visit( DocumentElement&, const std::list< std::unique_ptr<Element> >::const_iterator& ) = 0;
virtual ~ElementTreeVisitor() {}
};
typedef std::shared_ptr<ElementTreeVisitor> ElementTreeVisitorSharedPtr;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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