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1 : : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : : /*
3 : : * This file is part of the LibreOffice project.
4 : : *
5 : : * This Source Code Form is subject to the terms of the Mozilla Public
6 : : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : : *
9 : : * This file incorporates work covered by the following license notice:
10 : : *
11 : : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : : * contributor license agreements. See the NOTICE file distributed
13 : : * with this work for additional information regarding copyright
14 : : * ownership. The ASF licenses this file to you under the Apache
15 : : * License, Version 2.0 (the "License"); you may not use this file
16 : : * except in compliance with the License. You may obtain a copy of
17 : : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : : */
19 : :
20 : : #ifndef INCLUDED_PDFI_TREEVISITORFACTORY_HXX
21 : : #define INCLUDED_PDFI_TREEVISITORFACTORY_HXX
22 : :
23 : : #include "pdfihelper.hxx"
24 : : #include <boost/shared_ptr.hpp>
25 : :
26 : : namespace pdfi
27 : : {
28 : : struct ElementTreeVisitor;
29 : : struct EmitContext;
30 : : class PDFIProcessor;
31 : : class StyleContainer;
32 : :
33 : : /** Tree manipulation factory
34 : :
35 : : Creates visitor objects performing various operations on the
36 : : pdf parse tree
37 : : */
38 : 6 : struct TreeVisitorFactory
39 : : {
40 [ - + ]: 6 : virtual ~TreeVisitorFactory() {}
41 : :
42 : : /// Create visitor that combines tree nodes
43 : : virtual boost::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0;
44 : : /// Create visitor that prepares style info
45 : : virtual boost::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor(
46 : : StyleContainer&, PDFIProcessor&) const = 0;
47 : : /// Create visitor that emits tree to an output target
48 : : virtual boost::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&, PDFIProcessor&) const = 0;
49 : : };
50 : :
51 : : typedef boost::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr;
52 : :
53 : : TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory();
54 : : TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory();
55 : : TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory();
56 : : }
57 : :
58 : : #endif
59 : :
60 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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