diff options
Diffstat (limited to 'dtrans/source/win32/dtobj/XTDataObject.cxx')
| -rw-r--r-- | dtrans/source/win32/dtobj/XTDataObject.cxx | 848 |
1 files changed, 848 insertions, 0 deletions
diff --git a/dtrans/source/win32/dtobj/XTDataObject.cxx b/dtrans/source/win32/dtobj/XTDataObject.cxx new file mode 100644 index 000000000000..e17a931d7380 --- /dev/null +++ b/dtrans/source/win32/dtobj/XTDataObject.cxx @@ -0,0 +1,848 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_dtrans.hxx" + +//------------------------------------------------------------------------ +// includes +//------------------------------------------------------------------------ +#include <osl/diagnose.h> + +#ifndef _TXDATAOBJECT_HXX_ +#include "XTDataObject.hxx" +#endif +#include <com/sun/star/datatransfer/dataflavor.hpp> +#include "..\misc\ImplHelper.hxx" +#include "DTransHelper.hxx" +#include "TxtCnvtHlp.hxx" +#include <com/sun/star/datatransfer/clipboard/XClipboardEx.hpp> +#include "FmtFilter.hxx" + +#if defined _MSC_VER +#pragma warning(push,1) +#pragma warning(disable:4917) +#endif +#include <windows.h> +#include <shlobj.h> +#if defined _MSC_VER +#pragma warning(pop) +#endif + +#ifdef __MINGW32__ +#define __uuidof(I) IID_##I +#endif + +//------------------------------------------------------------------------ +// namespace directives +//------------------------------------------------------------------------ + +using namespace com::sun::star::datatransfer; +using namespace com::sun::star::datatransfer::clipboard; +using namespace com::sun::star::uno; +using namespace com::sun::star::lang; +using namespace rtl; + +//------------------------------------------------------------------------ +// a helper class that will be thrown by the function validateFormatEtc +//------------------------------------------------------------------------ + +class CInvalidFormatEtcException +{ +public: + HRESULT m_hr; + CInvalidFormatEtcException( HRESULT hr ) : m_hr( hr ) {}; +}; + +//------------------------------------------------------------------------ +// ctor +//------------------------------------------------------------------------ + +CXTDataObject::CXTDataObject( const Reference< XMultiServiceFactory >& aServiceManager, + const Reference< XTransferable >& aXTransferable ) : + m_nRefCnt( 0 ), + m_SrvMgr( aServiceManager ), + m_XTransferable( aXTransferable ), + m_DataFormatTranslator( aServiceManager ), + m_bFormatEtcContainerInitialized( sal_False ), + m_FormatRegistrar( m_SrvMgr, m_DataFormatTranslator ) +{ +} + +//------------------------------------------------------------------------ +// IUnknown->QueryInterface +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::QueryInterface( REFIID iid, LPVOID* ppvObject ) +{ + if ( NULL == ppvObject ) + return E_INVALIDARG; + + HRESULT hr = E_NOINTERFACE; + + *ppvObject = NULL; + if ( ( __uuidof( IUnknown ) == iid ) || + ( __uuidof( IDataObject ) == iid ) ) + { + *ppvObject = static_cast< IUnknown* >( this ); + ( (LPUNKNOWN)*ppvObject )->AddRef( ); + hr = S_OK; + } + + return hr; +} + +//------------------------------------------------------------------------ +// IUnknown->AddRef +//------------------------------------------------------------------------ + +STDMETHODIMP_(ULONG) CXTDataObject::AddRef( ) +{ + return static_cast< ULONG >( InterlockedIncrement( &m_nRefCnt ) ); +} + +//------------------------------------------------------------------------ +// IUnknown->Release +//------------------------------------------------------------------------ + +STDMETHODIMP_(ULONG) CXTDataObject::Release( ) +{ + ULONG nRefCnt = + static_cast< ULONG >( InterlockedDecrement( &m_nRefCnt ) ); + + if ( 0 == nRefCnt ) + delete this; + + return nRefCnt; +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::GetData( LPFORMATETC pFormatetc, LPSTGMEDIUM pmedium ) +{ + if ( !(pFormatetc && pmedium) ) + return E_INVALIDARG; + + try + { + // prepare data transfer + invalidateStgMedium( *pmedium ); + validateFormatEtc( pFormatetc ); + + // handle locale request, because locale is a artificial format for us + if ( CF_LOCALE == pFormatetc->cfFormat ) + renderLocaleAndSetupStgMedium( *pFormatetc, *pmedium ); + else if ( CF_UNICODETEXT == pFormatetc->cfFormat ) + renderUnicodeAndSetupStgMedium( *pFormatetc, *pmedium ); + else + renderAnyDataAndSetupStgMedium( *pFormatetc, *pmedium ); + } + catch(UnsupportedFlavorException&) + { + HRESULT hr = DV_E_FORMATETC; + + if ( m_FormatRegistrar.isSynthesizeableFormat( *pFormatetc ) ) + hr = renderSynthesizedFormatAndSetupStgMedium( *pFormatetc, *pmedium ); + + return hr; + } + catch( CInvalidFormatEtcException& ex ) + { + return ex.m_hr; + } + catch( CStgTransferHelper::CStgTransferException& ex ) + { + return translateStgExceptionCode( ex.m_hr ); + } + catch(...) + { + return E_UNEXPECTED; + } + + return S_OK; +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +// inline +void SAL_CALL CXTDataObject::renderDataAndSetupStgMedium( + const sal_Int8* lpStorage, const FORMATETC& fetc, sal_uInt32 nInitStgSize, + sal_uInt32 nBytesToTransfer, STGMEDIUM& stgmedium ) +{ + OSL_PRECOND( !nInitStgSize || nInitStgSize && (nInitStgSize >= nBytesToTransfer), + "Memory size less than number of bytes to transfer" ); + + CStgTransferHelper stgTransfHelper( AUTO_INIT ); + + // setup storage size + if ( nInitStgSize > 0 ) + stgTransfHelper.init( nInitStgSize, GHND ); + +#if OSL_DEBUG_LEVEL > 0 + sal_uInt32 nBytesWritten = 0; + stgTransfHelper.write( lpStorage, nBytesToTransfer, &nBytesWritten ); + OSL_ASSERT( nBytesWritten == nBytesToTransfer ); +#else + stgTransfHelper.write( lpStorage, nBytesToTransfer ); +#endif + + setupStgMedium( fetc, stgTransfHelper, stgmedium ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +//inline +void SAL_CALL CXTDataObject::renderLocaleAndSetupStgMedium( + FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + if ( m_FormatRegistrar.hasSynthesizedLocale( ) ) + { + LCID lcid = m_FormatRegistrar.getSynthesizedLocale( ); + renderDataAndSetupStgMedium( + reinterpret_cast< sal_Int8* >( &lcid ), + fetc, + 0, + sizeof( LCID ), + stgmedium ); + } + else + throw CInvalidFormatEtcException( DV_E_FORMATETC ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +//inline +void SAL_CALL CXTDataObject::renderUnicodeAndSetupStgMedium( + FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + DataFlavor aFlavor = formatEtcToDataFlavor( fetc ); + + Any aAny = m_XTransferable->getTransferData( aFlavor ); + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + { + OSL_ENSURE( sal_False, "XTransferable should throw an exception if ask for an unsupported flavor" ); + throw UnsupportedFlavorException( ); + } + + OUString aText; + aAny >>= aText; + + sal_uInt32 nBytesToTransfer = aText.getLength( ) * sizeof( sal_Unicode ); + + // to be sure there is an ending 0 + sal_uInt32 nRequiredMemSize = nBytesToTransfer + sizeof( sal_Unicode ); + + renderDataAndSetupStgMedium( + reinterpret_cast< const sal_Int8* >( aText.getStr( ) ), + fetc, + nRequiredMemSize, + nBytesToTransfer, + stgmedium ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +//inline +void SAL_CALL CXTDataObject::renderAnyDataAndSetupStgMedium( + FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + DataFlavor aFlavor = formatEtcToDataFlavor( fetc ); + + Any aAny = m_XTransferable->getTransferData( aFlavor ); + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + { + OSL_ENSURE( sal_False, "XTransferable should throw an exception if ask for an unsupported flavor" ); + throw UnsupportedFlavorException( ); + } + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + throw UnsupportedFlavorException( ); + + Sequence< sal_Int8 > clipDataStream; + aAny >>= clipDataStream; + + sal_uInt32 nRequiredMemSize = 0; + if ( m_DataFormatTranslator.isOemOrAnsiTextFormat( fetc.cfFormat ) ) + nRequiredMemSize = sizeof( sal_Int8 ) * clipDataStream.getLength( ) + 1; + + // prepare data for transmision + if ( CF_DIB == fetc.cfFormat ) + clipDataStream = OOBmpToWinDIB( clipDataStream ); + + if ( CF_METAFILEPICT == fetc.cfFormat ) + { + stgmedium.tymed = TYMED_MFPICT; + stgmedium.hMetaFilePict = OOMFPictToWinMFPict( clipDataStream ); + stgmedium.pUnkForRelease = NULL; + } + else if( CF_ENHMETAFILE == fetc.cfFormat ) + { + stgmedium.tymed = TYMED_ENHMF; + stgmedium.hMetaFilePict = OOMFPictToWinENHMFPict( clipDataStream ); + stgmedium.pUnkForRelease = NULL; + } + else + renderDataAndSetupStgMedium( + clipDataStream.getArray( ), + fetc, + nRequiredMemSize, + clipDataStream.getLength( ), + stgmedium ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +HRESULT SAL_CALL CXTDataObject::renderSynthesizedFormatAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + HRESULT hr = S_OK; + + try + { + if ( CF_UNICODETEXT == fetc.cfFormat ) + // the transferable seems to have only text + renderSynthesizedUnicodeAndSetupStgMedium( fetc, stgmedium ); + else if ( m_DataFormatTranslator.isOemOrAnsiTextFormat( fetc.cfFormat ) ) + // the transferable seems to have only unicode text + renderSynthesizedTextAndSetupStgMedium( fetc, stgmedium ); + else + // the transferable seems to have only text/html + renderSynthesizedHtmlAndSetupStgMedium( fetc, stgmedium ); + } + catch(UnsupportedFlavorException&) + { + hr = DV_E_FORMATETC; + } + catch( CInvalidFormatEtcException& ) + { + OSL_ENSURE( sal_False, "Unexpected exception" ); + } + catch( CStgTransferHelper::CStgTransferException& ex ) + { + return translateStgExceptionCode( ex.m_hr ); + } + catch(...) + { + hr = E_UNEXPECTED; + } + + return hr; +} + +//------------------------------------------------------------------------ +// the transferable must have only text, so we will synthesize unicode text +//------------------------------------------------------------------------ + +void SAL_CALL CXTDataObject::renderSynthesizedUnicodeAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + OSL_ASSERT( CF_UNICODETEXT == fetc.cfFormat ); + + Any aAny = m_XTransferable->getTransferData( m_FormatRegistrar.getRegisteredTextFlavor( ) ); + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + { + OSL_ENSURE( sal_False, "XTransferable should throw an exception if ask for an unsupported flavor" ); + throw UnsupportedFlavorException( ); + } + + Sequence< sal_Int8 > aText; + aAny >>= aText; + + CStgTransferHelper stgTransfHelper; + + MultiByteToWideCharEx( + m_FormatRegistrar.getRegisteredTextCodePage( ), + reinterpret_cast< char* >( aText.getArray( ) ), + aText.getLength( ), + stgTransfHelper ); + + setupStgMedium( fetc, stgTransfHelper, stgmedium ); +} + +//------------------------------------------------------------------------ +// the transferable must have only unicode text so we will sythesize text +//------------------------------------------------------------------------ + +void SAL_CALL CXTDataObject::renderSynthesizedTextAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + OSL_ASSERT( m_DataFormatTranslator.isOemOrAnsiTextFormat( fetc.cfFormat ) ); + + DataFlavor aFlavor = formatEtcToDataFlavor( + m_DataFormatTranslator.getFormatEtcForClipformat( CF_UNICODETEXT ) ); + + Any aAny = m_XTransferable->getTransferData( aFlavor ); + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + { + OSL_ENSURE( sal_False, "XTransferable should throw an exception if ask for an unsupported flavor" ); + throw UnsupportedFlavorException( ); + } + + OUString aUnicodeText; + aAny >>= aUnicodeText; + + CStgTransferHelper stgTransfHelper; + + WideCharToMultiByteEx( + GetACP( ), + reinterpret_cast<LPCWSTR>( aUnicodeText.getStr( ) ), + aUnicodeText.getLength( ), + stgTransfHelper ); + + setupStgMedium( fetc, stgTransfHelper, stgmedium ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +void SAL_CALL CXTDataObject::renderSynthesizedHtmlAndSetupStgMedium( FORMATETC& fetc, STGMEDIUM& stgmedium ) +{ + OSL_ASSERT( m_DataFormatTranslator.isHTMLFormat( fetc.cfFormat ) ); + + DataFlavor aFlavor; + + // creating a DataFlavor on the fly + aFlavor.MimeType = OUString::createFromAscii( "text/html" ); + aFlavor.DataType = getCppuType( (Sequence< sal_Int8 >*)0 ); + + Any aAny = m_XTransferable->getTransferData( aFlavor ); + + // unfortunately not all transferables fulfill the + // spec. an do throw an UnsupportedFlavorException + // so we must check the any + if ( !aAny.hasValue( ) ) + { + OSL_ENSURE( sal_False, "XTransferable should throw an exception if ask for an unsupported flavor" ); + throw UnsupportedFlavorException( ); + } + + Sequence< sal_Int8 > aTextHtmlSequence; + aAny >>= aTextHtmlSequence; + + Sequence< sal_Int8 > aHTMLFormatSequence = TextHtmlToHTMLFormat( aTextHtmlSequence ); + + sal_uInt32 nBytesToTransfer = aHTMLFormatSequence.getLength( ); + + renderDataAndSetupStgMedium( + reinterpret_cast< const sal_Int8* >( aHTMLFormatSequence.getArray( ) ), + fetc, + 0, + nBytesToTransfer, + stgmedium ); +} + +//------------------------------------------------------------------------ +// IDataObject->EnumFormatEtc +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::EnumFormatEtc( + DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) +{ + if ( NULL == ppenumFormatetc ) + return E_INVALIDARG; + + if ( DATADIR_SET == dwDirection ) + return E_NOTIMPL; + + *ppenumFormatetc = NULL; + + InitializeFormatEtcContainer( ); + + HRESULT hr; + if ( DATADIR_GET == dwDirection ) + { + *ppenumFormatetc = new CEnumFormatEtc( this, m_FormatEtcContainer ); + if ( NULL != *ppenumFormatetc ) + static_cast< LPUNKNOWN >( *ppenumFormatetc )->AddRef( ); + + hr = ( NULL != *ppenumFormatetc ) ? S_OK : E_OUTOFMEMORY; + } + else + hr = E_INVALIDARG; + + return hr; +} + +//------------------------------------------------------------------------ +// IDataObject->QueryGetData +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::QueryGetData( LPFORMATETC pFormatetc ) +{ + if ( (NULL == pFormatetc) || IsBadReadPtr( pFormatetc, sizeof( FORMATETC ) ) ) + return E_INVALIDARG; + + InitializeFormatEtcContainer( ); + + return m_FormatEtcContainer.hasFormatEtc( *pFormatetc ) ? S_OK : S_FALSE; +} + +//------------------------------------------------------------------------ +// IDataObject->GetDataHere +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::GetDataHere( LPFORMATETC, LPSTGMEDIUM ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// IDataObject->GetCanonicalFormatEtc +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::GetCanonicalFormatEtc( LPFORMATETC, LPFORMATETC ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// IDataObject->SetData +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::SetData( LPFORMATETC, LPSTGMEDIUM, BOOL ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// IDataObject->DAdvise +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::DAdvise( LPFORMATETC, DWORD, LPADVISESINK, DWORD * ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// IDataObject->DUnadvise +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::DUnadvise( DWORD ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// IDataObject->EnumDAdvise +//------------------------------------------------------------------------ + +STDMETHODIMP CXTDataObject::EnumDAdvise( LPENUMSTATDATA * ) +{ + return E_NOTIMPL; +} + +//------------------------------------------------------------------------ +// for our convenience +//------------------------------------------------------------------------ + +CXTDataObject::operator IDataObject*( ) +{ + return static_cast< IDataObject* >( this ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +inline +DataFlavor SAL_CALL CXTDataObject::formatEtcToDataFlavor( const FORMATETC& aFormatEtc ) const +{ + DataFlavor aFlavor; + + if ( m_FormatRegistrar.hasSynthesizedLocale( ) ) + aFlavor = + m_DataFormatTranslator.getDataFlavorFromFormatEtc( aFormatEtc, m_FormatRegistrar.getSynthesizedLocale( ) ); + else + aFlavor = m_DataFormatTranslator.getDataFlavorFromFormatEtc( aFormatEtc ); + + if ( !aFlavor.MimeType.getLength( ) ) + throw UnsupportedFlavorException( ); + + return aFlavor; +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +inline +void CXTDataObject::validateFormatEtc( LPFORMATETC lpFormatEtc ) const +{ + OSL_ASSERT( lpFormatEtc ); + + if ( lpFormatEtc->lindex != -1 ) + throw CInvalidFormatEtcException( DV_E_LINDEX ); + + if ( !(lpFormatEtc->dwAspect & DVASPECT_CONTENT) && + !(lpFormatEtc->dwAspect & DVASPECT_SHORTNAME) ) + throw CInvalidFormatEtcException( DV_E_DVASPECT ); + + if ( !(lpFormatEtc->tymed & TYMED_HGLOBAL) && + !(lpFormatEtc->tymed & TYMED_ISTREAM) && + !(lpFormatEtc->tymed & TYMED_MFPICT) && + !(lpFormatEtc->tymed & TYMED_ENHMF) ) + throw CInvalidFormatEtcException( DV_E_TYMED ); + + if ( lpFormatEtc->cfFormat == CF_METAFILEPICT && + !(lpFormatEtc->tymed & TYMED_MFPICT) ) + throw CInvalidFormatEtcException( DV_E_TYMED ); + + if ( lpFormatEtc->cfFormat == CF_ENHMETAFILE && + !(lpFormatEtc->tymed & TYMED_ENHMF) ) + throw CInvalidFormatEtcException( DV_E_TYMED ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +//inline +void SAL_CALL CXTDataObject::setupStgMedium( const FORMATETC& fetc, + CStgTransferHelper& stgTransHlp, + STGMEDIUM& stgmedium ) +{ + stgmedium.pUnkForRelease = NULL; + + if ( fetc.cfFormat == CF_METAFILEPICT ) + { + stgmedium.tymed = TYMED_MFPICT; + stgmedium.hMetaFilePict = static_cast< HMETAFILEPICT >( stgTransHlp.getHGlobal( ) ); + } + else if ( fetc.cfFormat == CF_ENHMETAFILE ) + { + stgmedium.tymed = TYMED_ENHMF; + stgmedium.hEnhMetaFile = static_cast< HENHMETAFILE >( stgTransHlp.getHGlobal( ) ); + } + else if ( fetc.tymed & TYMED_HGLOBAL ) + { + stgmedium.tymed = TYMED_HGLOBAL; + stgmedium.hGlobal = stgTransHlp.getHGlobal( ); + } + else if ( fetc.tymed & TYMED_ISTREAM ) + { + stgmedium.tymed = TYMED_ISTREAM; + stgTransHlp.getIStream( &stgmedium.pstm ); + } + else + OSL_ASSERT( sal_False ); +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +inline +void SAL_CALL CXTDataObject::invalidateStgMedium( STGMEDIUM& stgmedium ) const +{ + stgmedium.tymed = TYMED_NULL; +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +inline +HRESULT SAL_CALL CXTDataObject::translateStgExceptionCode( HRESULT hr ) const +{ + HRESULT hrTransl; + + switch( hr ) + { + case STG_E_MEDIUMFULL: + hrTransl = hr; + break; + + default: + hrTransl = E_UNEXPECTED; + break; + } + + return hrTransl; +} + +//------------------------------------------------------------------------ +// +//------------------------------------------------------------------------ + +inline void SAL_CALL CXTDataObject::InitializeFormatEtcContainer( ) +{ + if ( !m_bFormatEtcContainerInitialized ) + { + m_FormatRegistrar.RegisterFormats( m_XTransferable, m_FormatEtcContainer ); + m_bFormatEtcContainerInitialized = sal_True; + } +} + +//============================================================================ +// CEnumFormatEtc +//============================================================================ + +//---------------------------------------------------------------------------- +// ctor +//---------------------------------------------------------------------------- + +CEnumFormatEtc::CEnumFormatEtc( LPUNKNOWN lpUnkOuter, const CFormatEtcContainer& aFormatEtcContainer ) : + m_nRefCnt( 0 ), + m_lpUnkOuter( lpUnkOuter ), + m_FormatEtcContainer( aFormatEtcContainer ) +{ + Reset( ); +} + +//---------------------------------------------------------------------------- +// IUnknown->QueryInterface +//---------------------------------------------------------------------------- + +STDMETHODIMP CEnumFormatEtc::QueryInterface( REFIID iid, LPVOID* ppvObject ) +{ + if ( NULL == ppvObject ) + return E_INVALIDARG; + + HRESULT hr = E_NOINTERFACE; + + *ppvObject = NULL; + + if ( ( __uuidof( IUnknown ) == iid ) || + ( __uuidof( IEnumFORMATETC ) == iid ) ) + { + *ppvObject = static_cast< IUnknown* >( this ); + static_cast< LPUNKNOWN >( *ppvObject )->AddRef( ); + hr = S_OK; + } + + return hr; +} + +//---------------------------------------------------------------------------- +// IUnknown->AddRef +//---------------------------------------------------------------------------- + +STDMETHODIMP_(ULONG) CEnumFormatEtc::AddRef( ) +{ + // keep the dataobject alive + m_lpUnkOuter->AddRef( ); + return InterlockedIncrement( &m_nRefCnt ); +} + +//---------------------------------------------------------------------------- +// IUnknown->Release +//---------------------------------------------------------------------------- + +STDMETHODIMP_(ULONG) CEnumFormatEtc::Release( ) +{ + // release the outer dataobject + m_lpUnkOuter->Release( ); + + ULONG nRefCnt = InterlockedDecrement( &m_nRefCnt ); + if ( 0 == nRefCnt ) + delete this; + + return nRefCnt; +} + +//---------------------------------------------------------------------------- +// IEnumFORMATETC->Next +//---------------------------------------------------------------------------- + +STDMETHODIMP CEnumFormatEtc::Next( ULONG nRequested, LPFORMATETC lpDest, ULONG* lpFetched ) +{ + if ( ( nRequested < 1 ) || + (( nRequested > 1 ) && ( NULL == lpFetched )) || + IsBadWritePtr( lpDest, sizeof( FORMATETC ) * nRequested ) ) + return E_INVALIDARG; + + sal_uInt32 nFetched = m_FormatEtcContainer.nextFormatEtc( lpDest, nRequested ); + + if ( NULL != lpFetched ) + *lpFetched = nFetched; + + return (nFetched == nRequested) ? S_OK : S_FALSE; +} + +//---------------------------------------------------------------------------- +// IEnumFORMATETC->Skip +//---------------------------------------------------------------------------- + +STDMETHODIMP CEnumFormatEtc::Skip( ULONG celt ) +{ + return m_FormatEtcContainer.skipFormatEtc( celt ) ? S_OK : S_FALSE; +} + +//---------------------------------------------------------------------------- +// IEnumFORMATETC->Reset +//---------------------------------------------------------------------------- + +STDMETHODIMP CEnumFormatEtc::Reset( ) +{ + m_FormatEtcContainer.beginEnumFormatEtc( ); + return S_OK; +} + +//---------------------------------------------------------------------------- +// IEnumFORMATETC->Clone +//---------------------------------------------------------------------------- + +STDMETHODIMP CEnumFormatEtc::Clone( IEnumFORMATETC** ppenum ) +{ + if ( NULL == ppenum ) + return E_INVALIDARG; + + *ppenum = new CEnumFormatEtc( m_lpUnkOuter, m_FormatEtcContainer ); + if ( NULL != ppenum ) + static_cast< LPUNKNOWN >( *ppenum )->AddRef( ); + + return ( NULL != *ppenum ) ? S_OK : E_OUTOFMEMORY; +} |