/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* 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
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#ifndef INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
#include <memory>
namespace pdfi
{
struct ElementTreeVisitor;
struct EmitContext;
class PDFIProcessor;
class StyleContainer;
/** Tree manipulation factory
Creates visitor objects performing various operations on the
pdf parse tree
*/
struct TreeVisitorFactory
{
virtual ~TreeVisitorFactory() {}
/// Create visitor that combines tree nodes
virtual std::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0 ;
/// Create visitor that prepares style info
virtual std::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor(
StyleContainer&, PDFIProcessor&) const = 0 ;
/// Create visitor that emits tree to an output target
virtual std::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&) const = 0 ;
};
typedef std::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr;
TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory();
TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory();
TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory();
}
#endif
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