1*06bcd5d2SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*06bcd5d2SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*06bcd5d2SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*06bcd5d2SAndrew Rist * distributed with this work for additional information 6*06bcd5d2SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*06bcd5d2SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*06bcd5d2SAndrew Rist * "License"); you may not use this file except in compliance 9*06bcd5d2SAndrew Rist * with the License. You may obtain a copy of the License at 10*06bcd5d2SAndrew Rist * 11*06bcd5d2SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*06bcd5d2SAndrew Rist * 13*06bcd5d2SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*06bcd5d2SAndrew Rist * software distributed under the License is distributed on an 15*06bcd5d2SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*06bcd5d2SAndrew Rist * KIND, either express or implied. See the License for the 17*06bcd5d2SAndrew Rist * specific language governing permissions and limitations 18*06bcd5d2SAndrew Rist * under the License. 19*06bcd5d2SAndrew Rist * 20*06bcd5d2SAndrew Rist *************************************************************/ 21*06bcd5d2SAndrew Rist 22*06bcd5d2SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef INCLUDED_PDFI_TREEVISITORFACTORY_HXX 25cdf0e10cSrcweir #define INCLUDED_PDFI_TREEVISITORFACTORY_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include "pdfihelper.hxx" 28cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 29cdf0e10cSrcweir 30cdf0e10cSrcweir namespace pdfi 31cdf0e10cSrcweir { 32cdf0e10cSrcweir struct ElementTreeVisitor; 33cdf0e10cSrcweir struct EmitContext; 34cdf0e10cSrcweir class PDFIProcessor; 35cdf0e10cSrcweir class StyleContainer; 36cdf0e10cSrcweir 37cdf0e10cSrcweir /** Tree manipulation factory 38cdf0e10cSrcweir 39cdf0e10cSrcweir Creates visitor objects performing various operations on the 40cdf0e10cSrcweir pdf parse tree 41cdf0e10cSrcweir */ 42cdf0e10cSrcweir struct TreeVisitorFactory 43cdf0e10cSrcweir { ~TreeVisitorFactorypdfi::TreeVisitorFactory44cdf0e10cSrcweir virtual ~TreeVisitorFactory() {} 45cdf0e10cSrcweir 46cdf0e10cSrcweir /// Create visitor that combines tree nodes 47cdf0e10cSrcweir virtual boost::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0; 48cdf0e10cSrcweir /// Create visitor that prepares style info 49cdf0e10cSrcweir virtual boost::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor( 50cdf0e10cSrcweir StyleContainer&, PDFIProcessor&) const = 0; 51cdf0e10cSrcweir /// Create visitor that emits tree to an output target 52cdf0e10cSrcweir virtual boost::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&, PDFIProcessor&) const = 0; 53cdf0e10cSrcweir }; 54cdf0e10cSrcweir 55cdf0e10cSrcweir typedef boost::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr; 56cdf0e10cSrcweir 57cdf0e10cSrcweir TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory(); 58cdf0e10cSrcweir TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory(); 59cdf0e10cSrcweir TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory(); 60cdf0e10cSrcweir } 61cdf0e10cSrcweir 62cdf0e10cSrcweir #endif 63cdf0e10cSrcweir 64