AOO410/main/dtrans/source/win32/dtobj/FetcList.hxx

/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/




#ifndef _FETCLIST_HXX_
#define _FETCLIST_HXX_

//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------

#include <sal/types.h>
#include <cppuhelper/servicefactory.hxx>
#include <com/sun/star/datatransfer/XTransferable.hpp>
#include "Fetc.hxx"

#if defined _MSC_VER
#pragma warning(push,1)
#endif
#include <windows.h>
#if defined _MSC_VER
#pragma warning(pop)
#endif
#include <vector>

/*****************************************************************
	a simple container for FORMATECT structures
	instances of this class are not thread-safe 
*****************************************************************/

class CFormatEtcContainer
{
public:
	CFormatEtcContainer( );

	// duplicates not allowed
	void SAL_CALL addFormatEtc( const CFormatEtc& fetc );
	
	// removes the specified formatetc 
	void SAL_CALL removeFormatEtc( const CFormatEtc& fetc );
	
	// removes the formatetc at pos
	void SAL_CALL removeAllFormatEtc( );

	sal_Bool SAL_CALL hasFormatEtc( const CFormatEtc& fetc ) const;
	
	sal_Bool SAL_CALL hasElements( ) const;
	
	// begin enumeration
	void SAL_CALL beginEnumFormatEtc( );
	
	// copies the specified number of formatetc structures starting
	// at the current enum position
	// the return value is the number of copied elements; if the 
	// current enum position is at the end the return value is 0
	sal_uInt32 SAL_CALL nextFormatEtc( LPFORMATETC lpFetc, sal_uInt32 aNum = 1 );

	// skips the specified number of elements in the container
	sal_Bool SAL_CALL skipFormatEtc( sal_uInt32 aNum );

protected:
	typedef std::vector< CFormatEtc > FormatEtcMap_t;

private:	
	FormatEtcMap_t           m_FormatMap;
	FormatEtcMap_t::iterator m_EnumIterator;
};

/*****************************************************************
	a helper class which converts data flavors to clipformats,
	creates an appropriate formatetc structures and if possible
	synthesizes clipboard formats if necessary, e.g. if text
	is provided a locale will also be provided; 
	the class registers the formatetc within a CFormatEtcContainer

	instances of this class are not thread-safe and multiple 
	instances of this class would use the same static variables
	that's why this class should not be used by multiple threads,
	only one thread of a process should use it
*****************************************************************/

// forward
class CDataFormatTranslator;

class CFormatRegistrar
{
public:
	CFormatRegistrar( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& ServiceManager,
					  const CDataFormatTranslator& aDataFormatTranslator );	
	
	void SAL_CALL RegisterFormats( const com::sun::star::uno::Reference< com::sun::star::datatransfer::XTransferable >& aXTransferable,
								   CFormatEtcContainer& aFormatEtcContainer );
	
	sal_Bool   SAL_CALL hasSynthesizedLocale( ) const;
	LCID       SAL_CALL getSynthesizedLocale( ) const;
	sal_uInt32 SAL_CALL getRegisteredTextCodePage( ) const;
	com::sun::star::datatransfer::DataFlavor SAL_CALL getRegisteredTextFlavor( ) const;
	
	sal_Bool  SAL_CALL isSynthesizeableFormat( const CFormatEtc& aFormatEtc ) const;
	sal_Bool  SAL_CALL needsToSynthesizeAccompanyFormats( const CFormatEtc& aFormatEtc ) const;

private:		
	sal_Bool      SAL_CALL isEqualCurrentSystemCodePage( sal_uInt32 aCodePage ) const;
	rtl::OUString SAL_CALL getCharsetFromDataFlavor( const com::sun::star::datatransfer::DataFlavor& aFlavor );
	
	sal_Bool SAL_CALL hasUnicodeFlavor( 
		const com::sun::star::uno::Reference< com::sun::star::datatransfer::XTransferable >& aXTransferable ) const;

	sal_Bool SAL_CALL findLocaleForTextCodePage( );

	static sal_Bool SAL_CALL isLocaleOemCodePage( LCID lcid, sal_uInt32 codepage );
	static sal_Bool SAL_CALL isLocaleAnsiCodePage( LCID lcid, sal_uInt32 codepage );
	static sal_Bool SAL_CALL isLocaleCodePage( LCID lcid, LCTYPE lctype, sal_uInt32 codepage );

	static BOOL CALLBACK EnumLocalesProc( LPSTR lpLocaleStr );
	
private:			
	const CDataFormatTranslator&			 m_DataFormatTranslator;
	sal_Bool								 m_bHasSynthesizedLocale;
	com::sun::star::datatransfer::DataFlavor m_RegisteredTextFlavor;

	const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >	m_SrvMgr;
	
	static LCID       m_TxtLocale;
	static sal_uInt32 m_TxtCodePage;
	
private:
	CFormatRegistrar( const CFormatRegistrar& );
	CFormatRegistrar& operator=( const CFormatRegistrar& );
};

#endif