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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_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
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */