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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
#include <com/sun/star/datatransfer/XTransferable.hpp>
#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
#include "DataFmtTransl.hxx"
#include "FetcList.hxx"
#if !defined WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <ole2.h>
#include <objidl.h>
/*--------------------------------------------------------------------------
- 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 CStgTransferHelper;
class CXTDataObject : public IDataObject
{
public:
CXTDataObject( const css::uno::Reference< css::uno::XComponentContext >& rxContext,
const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable );
virtual ~CXTDataObject();
// ole interface implementation
//IUnknown interface methods
STDMETHODIMP QueryInterface(REFIID iid, void** ppvObject) override;
STDMETHODIMP_( ULONG ) AddRef( ) override;
STDMETHODIMP_( ULONG ) Release( ) override;
// IDataObject interface methods
STDMETHODIMP GetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
STDMETHODIMP GetDataHere( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
STDMETHODIMP QueryGetData( FORMATETC * pFormatetc ) override;
STDMETHODIMP GetCanonicalFormatEtc( FORMATETC * pFormatectIn, FORMATETC * pFormatetcOut ) override;
STDMETHODIMP SetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium, BOOL fRelease ) override;
STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) override;
STDMETHODIMP DAdvise( FORMATETC * pFormatetc, DWORD advf, IAdviseSink * pAdvSink, DWORD* pdwConnection ) override;
STDMETHODIMP DUnadvise( DWORD dwConnection ) override;
STDMETHODIMP EnumDAdvise( IEnumSTATDATA** ppenumAdvise ) override;
operator IDataObject*( );
private:
css::datatransfer::DataFlavor formatEtcToDataFlavor( const FORMATETC& aFormatEtc ) const;
void renderLocaleAndSetupStgMedium( FORMATETC const & fetc, STGMEDIUM& stgmedium );
void renderUnicodeAndSetupStgMedium( FORMATETC const & fetc, STGMEDIUM& stgmedium );
void renderAnyDataAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
HRESULT renderSynthesizedFormatAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
void renderSynthesizedUnicodeAndSetupStgMedium( FORMATETC const & fetc, STGMEDIUM& stgmedium );
void renderSynthesizedTextAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
void renderSynthesizedHtmlAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium );
inline void InitializeFormatEtcContainer( );
private:
LONG m_nRefCnt;
css::uno::Reference< css::datatransfer::XTransferable > m_XTransferable;
css::uno::Reference< css::uno::XComponentContext> m_XComponentContext;
CFormatEtcContainer m_FormatEtcContainer;
bool m_bFormatEtcContainerInitialized;
CDataFormatTranslator m_DataFormatTranslator;
CFormatRegistrar m_FormatRegistrar;
};
class CEnumFormatEtc : public IEnumFORMATETC
{
public:
CEnumFormatEtc( LPUNKNOWN lpUnkOuter, const CFormatEtcContainer& aFormatEtcContainer );
virtual ~CEnumFormatEtc() {}
// IUnknown
STDMETHODIMP QueryInterface( REFIID iid, void** ppvObject ) override;
STDMETHODIMP_( ULONG ) AddRef( ) override;
STDMETHODIMP_( ULONG ) Release( ) override;
//IEnumFORMATETC
STDMETHODIMP Next( ULONG nRequested, FORMATETC * lpDest, ULONG* lpFetched ) override;
STDMETHODIMP Skip( ULONG celt ) override;
STDMETHODIMP Reset( ) override;
STDMETHODIMP Clone( IEnumFORMATETC** ppenum ) override;
private:
LONG m_nRefCnt;
LPUNKNOWN m_lpUnkOuter;
CFormatEtcContainer m_FormatEtcContainer;
};
typedef CEnumFormatEtc *PCEnumFormatEtc;
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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