1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef INCLUDED_PDFI_TREEVISITING_HXX 29*cdf0e10cSrcweir #define INCLUDED_PDFI_TREEVISITING_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include <sal/config.h> 32*cdf0e10cSrcweir #include <list> 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir 35*cdf0e10cSrcweir namespace pdfi 36*cdf0e10cSrcweir { 37*cdf0e10cSrcweir class PDFIProcessor; 38*cdf0e10cSrcweir class StyleContainer; 39*cdf0e10cSrcweir struct HyperlinkElement; 40*cdf0e10cSrcweir struct TextElement; 41*cdf0e10cSrcweir struct ParagraphElement; 42*cdf0e10cSrcweir struct FrameElement; 43*cdf0e10cSrcweir struct PolyPolyElement; 44*cdf0e10cSrcweir struct ImageElement; 45*cdf0e10cSrcweir struct PageElement; 46*cdf0e10cSrcweir struct DocumentElement; 47*cdf0e10cSrcweir struct EmitContext; 48*cdf0e10cSrcweir struct Element; 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir /** To be visited by all tree element types 51*cdf0e10cSrcweir 52*cdf0e10cSrcweir Visitor interface from the "visitor pattern". Implementor gets 53*cdf0e10cSrcweir called with actual tree node instances. 54*cdf0e10cSrcweir */ 55*cdf0e10cSrcweir struct ElementTreeVisitor 56*cdf0e10cSrcweir { 57*cdf0e10cSrcweir virtual void visit( HyperlinkElement&, const std::list< Element* >::const_iterator& ) = 0; 58*cdf0e10cSrcweir virtual void visit( TextElement&, const std::list< Element* >::const_iterator& ) = 0; 59*cdf0e10cSrcweir virtual void visit( ParagraphElement&, const std::list< Element* >::const_iterator& ) = 0; 60*cdf0e10cSrcweir virtual void visit( FrameElement&, const std::list< Element* >::const_iterator& ) = 0; 61*cdf0e10cSrcweir virtual void visit( PolyPolyElement&, const std::list< Element* >::const_iterator& ) = 0; 62*cdf0e10cSrcweir virtual void visit( ImageElement&, const std::list< Element* >::const_iterator& ) = 0; 63*cdf0e10cSrcweir virtual void visit( PageElement&, const std::list< Element* >::const_iterator& ) = 0; 64*cdf0e10cSrcweir virtual void visit( DocumentElement&, const std::list< Element* >::const_iterator& ) = 0; 65*cdf0e10cSrcweir }; 66*cdf0e10cSrcweir typedef boost::shared_ptr<ElementTreeVisitor> ElementTreeVisitorSharedPtr; 67*cdf0e10cSrcweir 68*cdf0e10cSrcweir /** Visitee interface 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir To be implemented by every tree node that needs to be 71*cdf0e10cSrcweir visitable. 72*cdf0e10cSrcweir */ 73*cdf0e10cSrcweir struct ElementTreeVisitable 74*cdf0e10cSrcweir { 75*cdf0e10cSrcweir virtual void visitedBy( ElementTreeVisitor&, const std::list< Element* >::const_iterator& rParentIt ) = 0; 76*cdf0e10cSrcweir }; 77*cdf0e10cSrcweir typedef boost::shared_ptr<ElementTreeVisitable> ElementTreeVisitableSharedPtr; 78*cdf0e10cSrcweir } 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir #endif 81