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| -rw-r--r-- | vcl/win/dtrans/XTDataObject.hxx | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/vcl/win/dtrans/XTDataObject.hxx b/vcl/win/dtrans/XTDataObject.hxx new file mode 100644 index 000000000..77f8c53f2 --- /dev/null +++ b/vcl/win/dtrans/XTDataObject.hxx @@ -0,0 +1,134 @@ +/* -*- 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: */ |