dtrans/source/win32/dtobj/APNDataObject.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
  21 #ifndef _APNDATAOBJECT_HXX_
  22 #define _APNDATAOBJECT_HXX_
  23
  24 #include <systools/win32/comtools.hxx>
  25
  26 /*
  27     an APartment Neutral dataobject wrapper; this wrapper of a IDataObject
  28     pointer can be used from any apartment without RPC_E_WRONG_THREAD
  29     which normally occurs if an apartment tries to use an interface
  30     pointer of another apartment; we use containment to hold the original
  31     DataObject
  32 */
  33 class CAPNDataObject : public IDataObject
  34 {
  35 public:
  36     CAPNDataObject( IDataObjectPtr rIDataObject );
  37     virtual ~CAPNDataObject( );
  38
  39     //-----------------------------------------------------------------
  40     //IUnknown interface methods
  41     //-----------------------------------------------------------------
  42
  43     STDMETHODIMP           QueryInterface(REFIID iid, LPVOID* ppvObject);
  44     STDMETHODIMP_( ULONG ) AddRef( );
  45     STDMETHODIMP_( ULONG ) Release( );
  46
  47     //-----------------------------------------------------------------
  48     // IDataObject interface methods
  49     //-----------------------------------------------------------------
  50
  51     STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  52     STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
  53     STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc );
  54     STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut );
  55     STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease );
  56     STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc );
  57     STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection );
  58     STDMETHODIMP DUnadvise( DWORD dwConnection );
  59     STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise );
  60
  61     operator IDataObject*( );
  62
  63 private:
  64     HRESULT MarshalIDataObjectIntoCurrentApartment( IDataObject** ppIDataObj );
  65
  66 private:
  67     IDataObjectPtr  m_rIDataObjectOrg;
  68     HGLOBAL         m_hGlobal;
  69     LONG            m_nRefCnt;
  70
  71 // prevent copy and assignment
  72 private:
  73     CAPNDataObject( const CAPNDataObject& theOther );
  74     CAPNDataObject& operator=( const CAPNDataObject& theOther );
  75 };
  76
  77 #endif
  78
  79 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */