AOO410/main/dbaccess/source/ui/querydesign/JoinExchange.cxx

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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbaccess.hxx"
#ifndef DBAUI_JOINEXCHANGE_HXX
#include "JoinExchange.hxx"
#endif
#ifndef _SOT_FORMATS_HXX
#include <sot/formats.hxx>
#endif
#ifndef _SVX_DBEXCH_HRC
#include <svx/dbexch.hrc>
#endif
#ifndef _CPPUHELPER_TYPEPROVIDER_HXX_ 
#include <cppuhelper/typeprovider.hxx>
#endif
#ifndef _SOT_FORMATS_HXX
#include <sot/formats.hxx>
#endif

namespace dbaui
{
	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::util;
	using namespace ::com::sun::star::lang;
	using namespace ::com::sun::star::datatransfer;

	String OJoinExchObj::m_sJoinFormat;
	//==================================================================
	// class OJoinExchObj
	//==================================================================
	DBG_NAME(OJoinExchObj)
	//------------------------------------------------------------------------
	OJoinExchObj::OJoinExchObj(const OJoinExchangeData& jxdSource,sal_Bool _bFirstEntry)
        :m_bFirstEntry(_bFirstEntry)
		,m_jxdSourceDescription(jxdSource)
		,m_pDragListener(NULL)
	{
		DBG_CTOR(OJoinExchObj,NULL);
		// Verfuegbare Typen in Liste einfuegen
	}

	//------------------------------------------------------------------------
	OJoinExchObj::~OJoinExchObj()
	{
		DBG_DTOR(OJoinExchObj,NULL);
	}

	//------------------------------------------------------------------------
	void OJoinExchObj::StartDrag( Window* _pWindow, sal_Int8 _nDragSourceActions, IDragTransferableListener* _pListener )
	{
		m_pDragListener = _pListener;
		TransferableHelper::StartDrag(_pWindow, _nDragSourceActions);
	}

	//------------------------------------------------------------------------
	void OJoinExchObj::DragFinished( sal_Int8 /*nDropAction*/ )
	{
		if (m_pDragListener)
			m_pDragListener->dragFinished();
		m_pDragListener = NULL;
	}

	//------------------------------------------------------------------------
	sal_Bool OJoinExchObj::isFormatAvailable( const DataFlavorExVector& _rFormats ,SotFormatStringId _nSlotID)
	{
        DataFlavorExVector::const_iterator aCheckEnd = _rFormats.end();
		for	(	DataFlavorExVector::const_iterator aCheck = _rFormats.begin();
				aCheck != aCheckEnd;
				++aCheck
			)
		{
			if ( _nSlotID == aCheck->mnSotId )
				return sal_True;
		}
		return sal_False;
	}

	//------------------------------------------------------------------------
	OJoinExchangeData OJoinExchObj::GetSourceDescription(const Reference< XTransferable >& _rxObject)
	{
		OJoinExchangeData aReturn;
		Reference< XUnoTunnel > xTunnel(_rxObject, UNO_QUERY);
		if (xTunnel.is())
		{
			OJoinExchObj* pImplementation = reinterpret_cast<OJoinExchObj*>(xTunnel->getSomething(getUnoTunnelImplementationId()));
			if (pImplementation)
				aReturn = pImplementation->m_jxdSourceDescription;
		}
		return aReturn;
	}

	//------------------------------------------------------------------------
	Sequence< sal_Int8 > OJoinExchObj::getUnoTunnelImplementationId()
	{
		static ::cppu::OImplementationId * pId = 0;
		if (! pId)
		{
			::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
			if (! pId)
			{
				static ::cppu::OImplementationId aId;
				pId = &aId;
			}
		}
		return pId->getImplementationId();
	}

	//------------------------------------------------------------------------
    sal_Int64 SAL_CALL OJoinExchObj::getSomething( const Sequence< sal_Int8 >& _rIdentifier ) throw(RuntimeException)
	{
		if (_rIdentifier.getLength() == 16 && 0 == rtl_compareMemory(getUnoTunnelImplementationId().getConstArray(),  _rIdentifier.getConstArray(), 16 ) )
			return reinterpret_cast<sal_Int64>(this);

		return 0;
	}

	//------------------------------------------------------------------------
	void OJoinExchObj::AddSupportedFormats()
	{
		AddFormat( SOT_FORMATSTR_ID_SBA_JOIN );
		if ( m_bFirstEntry )
			AddFormat( SOT_FORMATSTR_ID_SBA_TABID );
	}

	//------------------------------------------------------------------------
	sal_Bool OJoinExchObj::GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor )
	{
		sal_uInt32 nFormat = SotExchange::GetFormat(rFlavor);
		if ( SOT_FORMATSTR_ID_SBA_JOIN == nFormat )
			// this is a HACK
			// we don't really copy our data, the instances using us have to call GetSourceDescription ....
			// if, one day, we have a _lot_ of time, this hack should be removed ....
			return sal_True;

		return sal_False;
	}

	//------------------------------------------------------------------------
	Any SAL_CALL OJoinExchObj::queryInterface( const Type& _rType ) throw(RuntimeException)
	{
		Any aReturn = TransferableHelper::queryInterface(_rType);
		if (!aReturn.hasValue())
			aReturn = OJoinExchObj_Base::queryInterface(_rType);
		return aReturn;
	}

	//------------------------------------------------------------------------
	void SAL_CALL OJoinExchObj::acquire(  ) throw()
	{
		TransferableHelper::acquire( );
	}

	//------------------------------------------------------------------------
	void SAL_CALL OJoinExchObj::release(  ) throw()
	{
		TransferableHelper::release( );
	}


}	// namespace dbaui