/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: xmlgrhlp.hxx,v $
 *
 *  $Revision: 1.8 $
 *
 *  last change: $Author: vg $ $Date: 2007/10/23 14:30:49 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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 for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

#ifndef _XMLGRHLP_HXX
#define _XMLGRHLP_HXX

#ifndef _CPPUHELPER_COMPBASE2_HXX_
#include <cppuhelper/compbase2.hxx>
#endif

#include <bf_so3/svstor.hxx>

#ifndef _BF_GOODIES_GRAPHICOBJECT_HXX
#include <bf_goodies/graphicobject.hxx>
#endif
#include <vector>
#include <set>
#include <utility>

#ifndef _COM_SUN_STAR_DOCUMENT_XGRAPHICOBJECTRESOLVER_HPP_
#include <com/sun/star/document/XGraphicObjectResolver.hpp>
#endif
#ifndef _COM_SUN_STAR_DOCUMENT_XBINARYSTREAMRESOLVER_HPP_
#include <com/sun/star/document/XBinaryStreamResolver.hpp>
#endif
class SotStorage;
namespace binfilter {

// ----------------------
// - SvXMLGraphicHelper -
// ----------------------

enum SvXMLGraphicHelperMode
{
	GRAPHICHELPER_MODE_READ = 0,
	GRAPHICHELPER_MODE_WRITE = 1
};

// ----------------------
// - SvXMLGraphicHelper -
// ----------------------


class SvXMLGraphicHelper : public ::cppu::WeakComponentImplHelper2<	::com::sun::star::document::XGraphicObjectResolver,
                                                                    ::com::sun::star::document::XBinaryStreamResolver >
{
private:

	typedef ::std::pair< ::rtl::OUString, ::rtl::OUString >	                                            URLPair;
	typedef ::std::vector< URLPair >							                                        URLPairVector;
	typedef ::std::vector< BfGraphicObject >						                                        GraphicObjectVector;
	typedef ::std::set< ::rtl::OUString >						                                        URLSet;
    typedef ::std::vector< ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > >    GraphicOutputStreamVector;

	::osl::Mutex				maMutex;
	SotStorage*					mpRootStorage;
	SotStorageRef				mxGraphicStorage;
	::rtl::OUString				maCurStorageName;
	URLPairVector				maGrfURLs;
	GraphicObjectVector			maGrfObjs;
    GraphicOutputStreamVector   maGrfStms;
	URLSet						maURLSet;
	SvXMLGraphicHelperMode		meCreateMode;
	sal_Bool                    mbDirect;

	sal_Bool					ImplGetStreamNames( const ::rtl::OUString& rURLStr, 
												    ::rtl::OUString& rPictureStorageName, 
												    ::rtl::OUString& rPictureStreamName );
	SotStorageRef				ImplGetGraphicStorage( const ::rtl::OUString& rPictureStorageName );
	SotStorageStreamRef			ImplGetGraphicStream( const ::rtl::OUString& rPictureStorageName, 
													  const ::rtl::OUString& rPictureStreamName, 
													  BOOL bTruncate );
    String                      ImplGetGraphicMimeType( const String& rFileName ) const;
	Graphic						ImplReadGraphic( const ::rtl::OUString& rPictureStorageName, 
												 const ::rtl::OUString& rPictureStreamName );
	sal_Bool					ImplWriteGraphic( const ::rtl::OUString& rPictureStorageName, 
												  const ::rtl::OUString& rPictureStreamName,
												  const ::rtl::OUString& rGraphicId );
	void						ImplInsertGraphicURL( const ::rtl::OUString& rURLStr, sal_uInt32 nInsertPos );

protected:						
								SvXMLGraphicHelper();							
								~SvXMLGraphicHelper();
	void						Init( SotStorage* pXMLStorage, 
									  SvXMLGraphicHelperMode eCreateMode,
									  BOOL bDirect );

    virtual void SAL_CALL		disposing();

public:							
								SvXMLGraphicHelper( SvXMLGraphicHelperMode eCreateMode );

	static SvXMLGraphicHelper*	Create( SotStorage& rXMLStorage, 
										SvXMLGraphicHelperMode eCreateMode,
										BOOL bDirect = TRUE );
	static SvXMLGraphicHelper*	Create( SvXMLGraphicHelperMode eCreateMode );

	static void					Destroy( SvXMLGraphicHelper* pSvXMLGraphicHelper );

	void						Flush();

public:

	// XGraphicObjectResolver
    virtual ::rtl::OUString SAL_CALL resolveGraphicObjectURL( const ::rtl::OUString& aURL ) throw(::com::sun::star::uno::RuntimeException);

    // XBinaryStreamResolver
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( const ::rtl::OUString& rURL ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL createOutputStream(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL resolveOutputStream( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream >& rxBinaryStream ) throw (::com::sun::star::uno::RuntimeException);
};

}//end of namespace binfilter
#endif
