dtrans/source/win32/workbench/XTDo.hxx

   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_DTRANS_SOURCE_WIN32_WORKBENCH_XTDO_HXX
  21 #define INCLUDED_DTRANS_SOURCE_WIN32_WORKBENCH_XTDO_HXX
  22
  23 #if defined _MSC_VER
  24 #pragma warning(push,1)
  25 #endif
  26 #include <windows.h>
  27 #include <ole2.h>
  28 #include <objidl.h>
  29 #if defined _MSC_VER
  30 #pragma warning(pop)
  31 #endif
  32
  33 #include <vector>
  34
  35 class EnumFormatEtc;
  36
  37 /*--------------------------------------------------------------------------
  38     - the function principle of the windows clipboard:
  39       a data provider offers all formats he can deliver on the clipboard
  40       a clipboard client ask for the available formats on the clipboard
  41       and decides if there is a format he can use
  42       if there is one, he requests the data in this format
  43
  44     - This class inherits from IDataObject and so can be placed on the
  45       OleClipboard. The class wraps a transferable object which is the
  46       original DataSource
  47     - DataFlavors offered by this transferable will be translated into
  48       appropriate clipboard formats
  49     - if the transferable contains text data always text and unicodetext
  50       will be offered or vice versa
  51     - text data will be automatically converted between text and unicode text
  52     - although the transferable may support text in different charsets
  53       (codepages) only text in one codepage can be offered by the clipboard
  54
  55 ----------------------------------------------------------------------------*/
  56
  57 class CXTDataObject : public IDataObject
  58 {
  59 public:
  60     CXTDataObject( );
  61
  62     // ole interface implementation
  63
  64     //IUnknown interface methods
  65     STDMETHODIMP           QueryInterface(REFIID iid, LPVOID* ppvObject);
  66     STDMETHODIMP_( ULONG ) AddRef( );
  67     STDMETHODIMP_( ULONG ) Release( );
  68
  69     // IDataObject interface methods
  70     STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  71     STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  72     STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc );
  73     STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut );
  74     STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease );
  75     STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc );
  76     STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection );
  77     STDMETHODIMP DUnadvise( DWORD dwConnection );
  78     STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise );
  79
  80     operator IDataObject*( );
  81
  82 private:
  83
  84 private:
  85     LONG m_nRefCnt;
  86 };
  87
  88 class CEnumFormatEtc : public IEnumFORMATETC
  89 {
  90 public:
  91     explicit CEnumFormatEtc( LPUNKNOWN pUnkDataObj );
  92
  93     // IUnknown
  94     STDMETHODIMP           QueryInterface( REFIID iid, LPVOID* ppvObject );
  95     STDMETHODIMP_( ULONG ) AddRef( );
  96     STDMETHODIMP_( ULONG ) Release( );
  97
  98     //IEnumFORMATETC
  99     STDMETHODIMP Next( ULONG celt, LPFORMATETC rgelt, ULONG* pceltFetched );
 100     STDMETHODIMP Skip( ULONG celt );
 101     STDMETHODIMP Reset( );
 102     STDMETHODIMP Clone( IEnumFORMATETC** ppenum );
 103
 104 private:
 105     LONG                                m_nRefCnt;
 106     LPUNKNOWN                           m_pUnkDataObj;
 107     ULONG                               m_nCurrPos;
 108 };
 109
 110 typedef CEnumFormatEtc *PCEnumFormatEtc;
 111
 112 #endif
 113
 114 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */