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 25 #ifndef _XTDATAOBJECT_HXX_ 26 #define _XTDATAOBJECT_HXX_ 27 28 29 //------------------------------------------------------------------------ 30 // includes 31 //------------------------------------------------------------------------ 32 33 #include <com/sun/star/datatransfer/XTransferable.hpp> 34 #include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp> 35 36 #ifndef _DATAFORMATTRANSLATOR_HXX_ 37 #include "DataFmtTransl.hxx" 38 #endif 39 40 #ifndef _FETCLIST_HXX_ 41 #include "FetcList.hxx" 42 #endif 43 44 #if defined _MSC_VER 45 #pragma warning(push,1) 46 #endif 47 #include <windows.h> 48 #include <ole2.h> 49 #include <objidl.h> 50 #if defined _MSC_VER 51 #pragma warning(pop) 52 #endif 53 54 /*-------------------------------------------------------------------------- 55 - the function principle of the windows clipboard: 56 a data provider offers all formats he can deliver on the clipboard 57 a clipboard client ask for the available formats on the clipboard 58 and decides if there is a format he can use 59 if there is one, he requests the data in this format 60 61 - This class inherits from IDataObject an so can be placed on the 62 OleClipboard. The class wrapps a transferable object which is the 63 original DataSource 64 - DataFlavors offerd by this transferable will be translated into 65 appropriate clipboard formats 66 - if the transferable contains text data always text and unicodetext 67 will be offered or vice versa 68 - text data will be automaticaly converted between text und unicode text 69 - although the transferable may support text in different charsets 70 (codepages) only text in one codepage can be offered by the clipboard 71 72 ----------------------------------------------------------------------------*/ 73 74 class CStgTransferHelper; 75 76 class CXTDataObject : public IDataObject 77 { 78 public: 79 CXTDataObject( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& aServiceManager, 80 const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& aXTransferable ); ~CXTDataObject()81 virtual ~CXTDataObject() {} 82 83 //----------------------------------------------------------------- 84 // ole interface implementation 85 //----------------------------------------------------------------- 86 87 //IUnknown interface methods 88 STDMETHODIMP QueryInterface(REFIID iid, LPVOID* ppvObject); 89 STDMETHODIMP_( ULONG ) AddRef( ); 90 STDMETHODIMP_( ULONG ) Release( ); 91 92 // IDataObject interface methods 93 STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 94 STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ); 95 STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc ); 96 STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut ); 97 STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease ); 98 STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ); 99 STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection ); 100 STDMETHODIMP DUnadvise( DWORD dwConnection ); 101 STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise ); 102 103 operator IDataObject*( ); 104 105 private: 106 com::sun::star::datatransfer::DataFlavor SAL_CALL formatEtcToDataFlavor( const FORMATETC& aFormatEtc ) const; 107 108 void SAL_CALL renderDataAndSetupStgMedium( const sal_Int8* lpStorage, 109 const FORMATETC& fetc, 110 sal_uInt32 nInitStgSize, 111 sal_uInt32 nBytesToTransfer, 112 STGMEDIUM& stgmedium ); 113 114 void SAL_CALL renderLocaleAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 115 void SAL_CALL renderUnicodeAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 116 void SAL_CALL renderAnyDataAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 117 118 HRESULT SAL_CALL renderSynthesizedFormatAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 119 void SAL_CALL renderSynthesizedUnicodeAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 120 void SAL_CALL renderSynthesizedTextAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 121 void SAL_CALL renderSynthesizedHtmlAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ); 122 123 void SAL_CALL setupStgMedium( const FORMATETC& fetc, 124 CStgTransferHelper& stgTransHlp, 125 STGMEDIUM& stgmedium ); 126 127 void validateFormatEtc( LPFORMATETC lpFormatEtc ) const; 128 void SAL_CALL invalidateStgMedium( STGMEDIUM& stgmedium ) const; 129 130 HRESULT SAL_CALL translateStgExceptionCode( HRESULT hr ) const; 131 132 inline void SAL_CALL InitializeFormatEtcContainer( ); 133 134 private: 135 LONG m_nRefCnt; 136 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > m_SrvMgr; 137 ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable > m_XTransferable; 138 CFormatEtcContainer m_FormatEtcContainer; 139 sal_Bool m_bFormatEtcContainerInitialized; 140 CDataFormatTranslator m_DataFormatTranslator; 141 CFormatRegistrar m_FormatRegistrar; 142 }; 143 144 //------------------------------------------------------------------------ 145 // 146 //------------------------------------------------------------------------ 147 148 class CEnumFormatEtc : public IEnumFORMATETC 149 { 150 public: 151 CEnumFormatEtc( LPUNKNOWN lpUnkOuter, const CFormatEtcContainer& aFormatEtcContainer ); ~CEnumFormatEtc()152 virtual ~CEnumFormatEtc() {} 153 154 // IUnknown 155 STDMETHODIMP QueryInterface( REFIID iid, LPVOID* ppvObject ); 156 STDMETHODIMP_( ULONG ) AddRef( ); 157 STDMETHODIMP_( ULONG ) Release( ); 158 159 //IEnumFORMATETC 160 STDMETHODIMP Next( ULONG nRequested, LPFORMATETC lpDest, ULONG* lpFetched ); 161 STDMETHODIMP Skip( ULONG celt ); 162 STDMETHODIMP Reset( ); 163 STDMETHODIMP Clone( IEnumFORMATETC** ppenum ); 164 165 private: 166 LONG m_nRefCnt; 167 LPUNKNOWN m_lpUnkOuter; 168 CFormatEtcContainer m_FormatEtcContainer; 169 }; 170 171 typedef CEnumFormatEtc *PCEnumFormatEtc; 172 173 #endif 174