dtrans/source/win32/clipb/APNDataObject.hxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: APNDataObject.hxx,v $
  10  * $Revision: 1.7 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31
  32 #ifndef _APNDATAOBJECT_HXX_
  33 #define _APNDATAOBJECT_HXX_
  34
  35 //------------------------------------------------------------------------
  36 // deklarations
  37 //------------------------------------------------------------------------
  38
  39 /*
  40     an APartment Neutral dataobject wrapper; this wrapper of a IDataObject
  41     pointer can be used from any apartment without RPC_E_WRONG_THREAD
  42     which normally occurs if an apartment tries to use an interface
  43     pointer of another apartment; we use containment to hold the original
  44     DataObject
  45 */
  46 class CAPNDataObject : public IDataObject
  47 {
  48 public:
  49     CAPNDataObject( IDataObjectPtr rIDataObject );
  50     ~CAPNDataObject( );
  51
  52     //-----------------------------------------------------------------
  53     //IUnknown interface methods
  54     //-----------------------------------------------------------------
  55
  56     STDMETHODIMP           QueryInterface(REFIID iid, LPVOID* ppvObject);
  57     STDMETHODIMP_( ULONG ) AddRef( );
  58     STDMETHODIMP_( ULONG ) Release( );
  59
  60     //-----------------------------------------------------------------
  61     // IDataObject interface methods
  62     //-----------------------------------------------------------------
  63
  64     STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  65     STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  66     STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc );
  67     STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut );
  68     STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease );
  69     STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc );
  70     STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection );
  71     STDMETHODIMP DUnadvise( DWORD dwConnection );
  72     STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise );
  73
  74     operator IDataObject*( );
  75
  76 private:
  77     HRESULT MarshalIDataObjectIntoCurrentApartment( IDataObject** ppIDataObj );
  78
  79 private:
  80     IDataObjectPtr  m_rIDataObjectOrg;
  81     HGLOBAL                     m_hGlobal;
  82     LONG                        m_nRefCnt;
  83
  84 // prevent copy and assignment
  85 private:
  86     CAPNDataObject( const CAPNDataObject& theOther );
  87     CAPNDataObject& operator=( const CAPNDataObject& theOther );
  88 };
  89
  90 #endif