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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#if defined _MSC_VER
+#pragma warning(push,1)
+#endif
+#include <windows.h>
+#include <ole2.h>
+#include <objidl.h>
+#if defined _MSC_VER
+#pragma warning(pop)
+#endif
+
+#include <vector>
+
+class EnumFormatEtc;
+
+/*--------------------------------------------------------------------------
+ - the function principle of the windows clipboard:
+ a data provider offers all formats he can deliver on the clipboard
+ a clipboard client ask for the available formats on the clipboard
+ and decides if there is a format he can use
+ if there is one, he requests the data in this format
+
+ - This class inherits from IDataObject and so can be placed on the
+ OleClipboard. The class wraps a transferable object which is the
+ original DataSource
+ - DataFlavors offered by this transferable will be translated into
+ appropriate clipboard formats
+ - if the transferable contains text data always text and unicodetext
+ will be offered or vice versa
+ - text data will be automatically converted between text and unicode text
+ - although the transferable may support text in different charsets
+ (codepages) only text in one codepage can be offered by the clipboard
+
+----------------------------------------------------------------------------*/
+
+class CXTDataObject : public IDataObject
+{
+public:
+ CXTDataObject( );
+
+ // ole interface implementation
+
+ //IUnknown interface methods
+ STDMETHODIMP QueryInterface(REFIID iid, LPVOID* ppvObject);
+ STDMETHODIMP_( ULONG ) AddRef( );
+ STDMETHODIMP_( ULONG ) Release( );
+
+ // IDataObject interface methods
+ STDMETHODIMP GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
+ STDMETHODIMP GetDataHere( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium );
+ STDMETHODIMP QueryGetData( LPFORMATETC pFormatetc );
+ STDMETHODIMP GetCanonicalFormatEtc( LPFORMATETC pFormatectIn, LPFORMATETC pFormatetcOut );
+ STDMETHODIMP SetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium, BOOL fRelease );
+ STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc );
+ STDMETHODIMP DAdvise( LPFORMATETC pFormatetc, DWORD advf, LPADVISESINK pAdvSink, DWORD* pdwConnection );
+ STDMETHODIMP DUnadvise( DWORD dwConnection );
+ STDMETHODIMP EnumDAdvise( LPENUMSTATDATA* ppenumAdvise );
+
+ operator IDataObject*( );
+
+private:
+
+private:
+ LONG m_nRefCnt;
+};
+
+class CEnumFormatEtc : public IEnumFORMATETC
+{
+public:
+ explicit CEnumFormatEtc( LPUNKNOWN pUnkDataObj );
+
+ // IUnknown
+ STDMETHODIMP QueryInterface( REFIID iid, LPVOID* ppvObject );
+ STDMETHODIMP_( ULONG ) AddRef( );
+ STDMETHODIMP_( ULONG ) Release( );
+
+ //IEnumFORMATETC
+ STDMETHODIMP Next( ULONG celt, LPFORMATETC rgelt, ULONG* pceltFetched );
+ STDMETHODIMP Skip( ULONG celt );
+ STDMETHODIMP Reset( );
+ STDMETHODIMP Clone( IEnumFORMATETC** ppenum );
+
+private:
+ LONG m_nRefCnt;
+ LPUNKNOWN m_pUnkDataObj;
+ ULONG m_nCurrPos;
+};
+
+typedef CEnumFormatEtc *PCEnumFormatEtc;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */