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#ifndef _XMLGRHLP_HXX
#define _XMLGRHLP_HXX

#include <cppuhelper/compbase2.hxx>

#include <bf_so3/svstor.hxx>

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

#include <com/sun/star/document/XGraphicObjectResolver.hpp>
#include <com/sun/star/document/XBinaryStreamResolver.hpp>
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

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