59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
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#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
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#include <memory>
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namespace pdfi
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{
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struct ElementTreeVisitor;
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struct EmitContext;
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class PDFIProcessor;
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class StyleContainer;
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/** Tree manipulation factory
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Creates visitor objects performing various operations on the
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pdf parse tree
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*/
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struct TreeVisitorFactory
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{
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virtual ~TreeVisitorFactory() {}
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/// Create visitor that combines tree nodes
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virtual std::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0;
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/// Create visitor that prepares style info
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virtual std::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor(
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StyleContainer&, PDFIProcessor&) const = 0;
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/// Create visitor that emits tree to an output target
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virtual std::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&) const = 0;
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};
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typedef std::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr;
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TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory();
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TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory();
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TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory();
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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