/**************************************************************
 * 
 * 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 SC_SELTRANS_HXX
#define SC_SELTRANS_HXX

#include <svtools/transfer.hxx>

class ScTabView;
class ScTransferObj;
class ScDrawTransferObj;

enum ScSelectionTransferMode
{
	SC_SELTRANS_INVALID,
	SC_SELTRANS_CELL,
	SC_SELTRANS_CELLS,
	SC_SELTRANS_DRAW_BITMAP,
	SC_SELTRANS_DRAW_GRAPHIC,
	SC_SELTRANS_DRAW_BOOKMARK,
	SC_SELTRANS_DRAW_OLE,
	SC_SELTRANS_DRAW_OTHER
};

class ScSelectionTransferObj : public TransferableHelper
{
private:
	ScTabView*				pView;
	ScSelectionTransferMode	eMode;
	ScTransferObj*			pCellData;
	ScDrawTransferObj*		pDrawData;

				ScSelectionTransferObj( ScTabView* pSource, ScSelectionTransferMode eNewMode );
	void		CreateCellData();
	void		CreateDrawData();

public:
			// creates an object if the view has a valid selection,
			// returns NULL otherwise
	static ScSelectionTransferObj* CreateFromView( ScTabView* pSource );

	virtual		~ScSelectionTransferObj();

	void		ForgetView();
	sal_Bool		StillValid();
	ScTabView*	GetView() const		{ return pView; }
	
	ScTransferObj*		GetCellData();
	ScDrawTransferObj*	GetDrawData();

	virtual void		AddSupportedFormats();
	virtual sal_Bool	GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
	virtual void		ObjectReleased();
};

#endif