1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef OOX_OLE_OLESTORAGE_HXX 25 #define OOX_OLE_OLESTORAGE_HXX 26 27 #include "oox/helper/storagebase.hxx" 28 29 namespace com { namespace sun { namespace star { 30 namespace container { class XNameContainer; } 31 namespace uno { class XComponentContext; } 32 } } } 33 34 namespace oox { 35 namespace ole { 36 37 // ============================================================================ 38 39 /** Implements stream access for binary OLE storages. */ 40 class OleStorage : public StorageBase 41 { 42 public: 43 explicit OleStorage( 44 const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& rxContext, 45 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& rxInStream, 46 bool bBaseStreamAccess ); 47 48 explicit OleStorage( 49 const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& rxContext, 50 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream, 51 bool bBaseStreamAccess ); 52 53 virtual ~OleStorage(); 54 55 private: 56 explicit OleStorage( 57 const OleStorage& rParentStorage, 58 const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >& rxStorage, 59 const ::rtl::OUString& rElementName, 60 bool bReadOnly ); 61 explicit OleStorage( 62 const OleStorage& rParentStorage, 63 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream, 64 const ::rtl::OUString& rElementName ); 65 66 /** Initializes the API storage object for input. */ 67 void initStorage( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& rxInStream ); 68 /** Initializes the API storage object for input/output. */ 69 void initStorage( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& rxOutStream ); 70 71 /** Returns true, if the object represents a valid storage. */ 72 virtual bool implIsStorage() const; 73 74 /** Returns the com.sun.star.embed.XStorage interface of the current storage. 75 76 @attention 77 This function is not implemented for binary OLE storages. 78 */ 79 virtual ::com::sun::star::uno::Reference< ::com::sun::star::embed::XStorage > 80 implGetXStorage() const; 81 82 /** Returns the names of all elements of this storage. */ 83 virtual void implGetElementNames( ::std::vector< ::rtl::OUString >& orElementNames ) const; 84 85 /** Opens and returns the specified sub storage from the storage. */ 86 virtual StorageRef implOpenSubStorage( const ::rtl::OUString& rElementName, bool bCreateMissing ); 87 88 /** Opens and returns the specified input stream from the storage. */ 89 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > 90 implOpenInputStream( const ::rtl::OUString& rElementName ); 91 92 /** Opens and returns the specified output stream from the storage. */ 93 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > 94 implOpenOutputStream( const ::rtl::OUString& rElementName ); 95 96 /** Commits the current storage. */ 97 virtual void implCommit() const; 98 99 private: 100 ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > 101 mxContext; /// Component context with service manager. 102 ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer > 103 mxStorage; /// Access to elements of this sub storage. 104 const OleStorage* mpParentStorage; /// Parent OLE storage that contains this storage. 105 }; 106 107 // ============================================================================ 108 109 } // namespace ole 110 } // namespace oox 111 112 #endif 113