xref: /AOO41X/main/vcl/source/gdi/impgraph.cxx (revision 45fd3b9abd7258384488f2747dad7bc0899f1720)

/**************************************************************
 *
 * 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.
 *
 *************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#include <tools/vcompat.hxx>
#include <tools/urlobj.hxx>
#include <tools/debug.hxx>
#include <tools/stream.hxx>
#include <ucbhelper/content.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <unotools/tempfile.hxx>
#include <vcl/outdev.hxx>
#include <vcl/virdev.hxx>
#include <vcl/gfxlink.hxx>
#include <vcl/cvtgrf.hxx>
#include <vcl/salbtype.hxx>
#include <vcl/graph.hxx>
#include <vcl/metaact.hxx>
#include <impgraph.hxx>
#include <com/sun/star/ucb/CommandAbortedException.hpp>
#include <vcl/dibtools.hxx>

// -----------
// - Defines -
// -----------

#define GRAPHIC_MAXPARTLEN			256000L
#define GRAPHIC_MTFTOBMP_MAXEXT		2048
#define GRAPHIC_STREAMBUFSIZE		8192UL

#define SYS_WINMETAFILE			    0x00000003L
#define SYS_WNTMETAFILE			    0x00000004L
#define SYS_OS2METAFILE			    0x00000005L
#define SYS_MACMETAFILE			    0x00000006L

#define GRAPHIC_FORMAT_50		    static_cast<sal_uInt32>(COMPAT_FORMAT( 'G', 'R', 'F', '5' ))
#define NATIVE_FORMAT_50		    static_cast<sal_uInt32>(COMPAT_FORMAT( 'N', 'A', 'T', '5' ))

// ---------------
// - ImpSwapFile -
// ---------------

struct ImpSwapFile
{
    INetURLObject	aSwapURL;
	sal_uLong			nRefCount;
};

// -----------------
// - Graphicreader -
// -----------------

class ReaderData
{
public:
    Size    maPreviewSize;
};

GraphicReader::~GraphicReader()
{
    delete mpReaderData;
}

// ------------------------------------------------------------------------

sal_Bool GraphicReader::IsPreviewModeEnabled() const
{
    if( !mpReaderData )
        return sal_False;
    if( mpReaderData->maPreviewSize.Width() )
        return sal_True;
    if( mpReaderData->maPreviewSize.Height() )
        return sal_True;
    return sal_False;
}

// ------------------------------------------------------------------------

void GraphicReader::DisablePreviewMode()
{
    if( mpReaderData )
        mpReaderData->maPreviewSize = Size( 0, 0 );
}

// ------------------------------------------------------------------------

void GraphicReader::SetPreviewSize( const Size& rSize )
{
    if( !mpReaderData )
        mpReaderData = new ReaderData;
    mpReaderData->maPreviewSize = rSize;
}

// ------------------------------------------------------------------------

Size GraphicReader::GetPreviewSize() const
{
    Size aSize( 0, 0 );
    if( mpReaderData )
        aSize = mpReaderData->maPreviewSize;
    return aSize;
}

// --------------
// - ImpGraphic -
// --------------

ImpGraphic::ImpGraphic() :
		mpAnimation		( NULL ),
		mpContext		( NULL ),
		mpSwapFile		( NULL ),
		mpGfxLink		( NULL ),
		meType			( GRAPHIC_NONE ),
		mnDocFilePos    ( 0UL ),
        mnSizeBytes     ( 0UL ),
		mnRefCount      ( 1UL ),
		mbSwapOut       ( sal_False ),
		mbSwapUnderway	( sal_False )
{
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic( const ImpGraphic& rImpGraphic ) :
		maMetaFile		( rImpGraphic.maMetaFile ),
		maEx			( rImpGraphic.maEx ),
	    mpContext		( NULL ),
		mpSwapFile		( rImpGraphic.mpSwapFile ),
		meType			( rImpGraphic.meType ),
		maDocFileURLStr	( rImpGraphic.maDocFileURLStr ),
		mnDocFilePos	( rImpGraphic.mnDocFilePos ),
        mnSizeBytes     ( rImpGraphic.mnSizeBytes ),
		mnRefCount		( 1UL ),
		mbSwapOut		( rImpGraphic.mbSwapOut ),
		mbSwapUnderway	( sal_False )
{
	if( mpSwapFile )
		mpSwapFile->nRefCount++;

	if( rImpGraphic.mpGfxLink )
		mpGfxLink = new GfxLink( *rImpGraphic.mpGfxLink );
	else
		mpGfxLink = NULL;

    if( rImpGraphic.mpAnimation )
    {
        mpAnimation = new Animation( *rImpGraphic.mpAnimation );
        maEx = mpAnimation->GetBitmapEx();
    }
    else
        mpAnimation = NULL;

    maSvgData = rImpGraphic.maSvgData;
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic( const Bitmap& rBitmap ) :
		maEx			( rBitmap ),
		mpAnimation		( NULL ),
		mpContext		( NULL ),
		mpSwapFile		( NULL ),
		mpGfxLink		( NULL ),
		meType			( !rBitmap ? GRAPHIC_NONE : GRAPHIC_BITMAP ),
		mnDocFilePos	( 0UL ),
        mnSizeBytes     ( 0UL ),
		mnRefCount		( 1UL ),
		mbSwapOut		( sal_False ),
		mbSwapUnderway	( sal_False )
{
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic( const BitmapEx& rBitmapEx ) :
		maEx			( rBitmapEx ),
		mpAnimation		( NULL ),
		mpContext		( NULL ),
		mpSwapFile		( NULL ),
		mpGfxLink		( NULL ),
		meType			( !rBitmapEx ? GRAPHIC_NONE : GRAPHIC_BITMAP ),
		mnDocFilePos	( 0UL ),
        mnSizeBytes     ( 0UL ),
		mnRefCount		( 1UL ),
		mbSwapOut		( sal_False ),
		mbSwapUnderway	( sal_False )
{
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic(const SvgDataPtr& rSvgDataPtr)
:   mpAnimation( NULL ),
    mpContext( NULL ),
    mpSwapFile( NULL ),
    mpGfxLink( NULL ),
    meType( rSvgDataPtr.get() ? GRAPHIC_BITMAP : GRAPHIC_NONE ),
    mnDocFilePos( 0UL ),
    mnSizeBytes( 0UL ),
    mnRefCount( 1UL ),
    mbSwapOut( sal_False ),
    mbSwapUnderway( sal_False ),
    maSvgData(rSvgDataPtr)
{
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic( const Animation& rAnimation ) :
	    maEx			( rAnimation.GetBitmapEx() ),
	    mpAnimation		( new Animation( rAnimation ) ),
		mpContext		( NULL ),
		mpSwapFile		( NULL ),
		mpGfxLink		( NULL ),
		meType			( GRAPHIC_BITMAP ),
		mnDocFilePos	( 0UL ),
        mnSizeBytes     ( 0UL ),
		mnRefCount		( 1UL ),
		mbSwapOut		( sal_False ),
		mbSwapUnderway	( sal_False )
{
}

// ------------------------------------------------------------------------

ImpGraphic::ImpGraphic( const GDIMetaFile& rMtf ) :
	    maMetaFile		( rMtf ),
		mpAnimation		( NULL ),
		mpContext		( NULL ),
		mpSwapFile		( NULL ),
		mpGfxLink		( NULL ),
		meType			( GRAPHIC_GDIMETAFILE ),
		mnDocFilePos	( 0UL ),
        mnSizeBytes     ( 0UL ),
		mnRefCount		( 1UL ),
		mbSwapOut		( sal_False ),
		mbSwapUnderway	( sal_False )
{
}

// ------------------------------------------------------------------------

ImpGraphic::~ImpGraphic()
{
    ImplClear();

    if( (sal_uLong) mpContext > 1UL )
        delete mpContext;
}

// ------------------------------------------------------------------------

ImpGraphic& ImpGraphic::operator=( const ImpGraphic& rImpGraphic )
{
    if( &rImpGraphic != this )
	{
		if( !mbSwapUnderway )
			ImplClear();

		maMetaFile = rImpGraphic.maMetaFile;
		meType = rImpGraphic.meType;
        mnSizeBytes = rImpGraphic.mnSizeBytes;

		delete mpAnimation;

		if ( rImpGraphic.mpAnimation )
		{
			mpAnimation = new Animation( *rImpGraphic.mpAnimation );
			maEx = mpAnimation->GetBitmapEx();
		}
		else
		{
			mpAnimation = NULL;
			maEx = rImpGraphic.maEx;
		}

		if( !mbSwapUnderway )
		{
			maDocFileURLStr = rImpGraphic.maDocFileURLStr;
			mnDocFilePos = rImpGraphic.mnDocFilePos;
			mbSwapOut = rImpGraphic.mbSwapOut;
			mpSwapFile = rImpGraphic.mpSwapFile;

			if( mpSwapFile )
				mpSwapFile->nRefCount++;
		}

		delete mpGfxLink;

		if( rImpGraphic.mpGfxLink )
			mpGfxLink = new GfxLink( *rImpGraphic.mpGfxLink );
		else
			mpGfxLink = NULL;

        maSvgData = rImpGraphic.maSvgData;
	}

	return *this;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::operator==( const ImpGraphic& rImpGraphic ) const
{
	sal_Bool bRet = sal_False;

	if( this == &rImpGraphic )
		bRet = sal_True;
	else if( !ImplIsSwapOut() && ( rImpGraphic.meType == meType ) )
	{
		switch( meType )
		{
			case( GRAPHIC_NONE ):
				bRet = sal_True;
			break;

			case( GRAPHIC_GDIMETAFILE ):
			{
				if( rImpGraphic.maMetaFile == maMetaFile )
					bRet = sal_True;
			}
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get())
                {
                    if(maSvgData == rImpGraphic.maSvgData)
                    {
                        bRet = sal_True;
                    }
                    else if(rImpGraphic.maSvgData)
                    {
                        if(maSvgData->getSvgDataArrayLength() == rImpGraphic.maSvgData->getSvgDataArrayLength())
                        {
                            if(0 == memcmp(
                                maSvgData->getSvgDataArray().get(),
                                rImpGraphic.maSvgData->getSvgDataArray().get(),
                                maSvgData->getSvgDataArrayLength()))
                            {
                                bRet = sal_True;
                            }
                        }
                    }
                }
				else if( mpAnimation )
				{
					if( rImpGraphic.mpAnimation && ( *rImpGraphic.mpAnimation == *mpAnimation ) )
						bRet = sal_True;
				}
				else if( !rImpGraphic.mpAnimation && ( rImpGraphic.maEx == maEx ) )
                {
					bRet = sal_True;
                }
			}
			break;

			default:
			break;
		}
	}

	return bRet;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplClearGraphics( sal_Bool bCreateSwapInfo )
{
	if( bCreateSwapInfo && !ImplIsSwapOut() )
	{
		maSwapInfo.maPrefMapMode = ImplGetPrefMapMode();
		maSwapInfo.maPrefSize = ImplGetPrefSize();
	}

    maEx.Clear();
	maMetaFile.Clear();

    if( mpAnimation )
    {
        mpAnimation->Clear();
        delete mpAnimation;
        mpAnimation = NULL;
    }

	if( mpGfxLink )
	{
		delete mpGfxLink;
		mpGfxLink = NULL;
	}

    maSvgData.reset();
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplClear()
{
    if( mpSwapFile )
    {
        if( mpSwapFile->nRefCount > 1 )
            mpSwapFile->nRefCount--;
        else
        {
			try
			{
				::ucbhelper::Content aCnt( mpSwapFile->aSwapURL.GetMainURL( INetURLObject::NO_DECODE ),
									 ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >() );

				aCnt.executeCommand( ::rtl::OUString::createFromAscii( "delete" ),
									 ::com::sun::star::uno::makeAny( sal_Bool( sal_True ) ) );
			}
			catch( const ::com::sun::star::ucb::ContentCreationException& )
			{
			}
			catch( const ::com::sun::star::uno::RuntimeException& )
			{
			}
			catch( const ::com::sun::star::ucb::CommandAbortedException& )
			{
			}
        	catch( const ::com::sun::star::uno::Exception& )
		    {
		    }

            delete mpSwapFile;
        }

        mpSwapFile = NULL;
    }

    mbSwapOut = sal_False;
    mnDocFilePos = 0UL;
    maDocFileURLStr.Erase();

    // cleanup
	ImplClearGraphics( sal_False );
    meType = GRAPHIC_NONE;
    mnSizeBytes = 0;
}

// ------------------------------------------------------------------------

GraphicType ImpGraphic::ImplGetType() const
{
	return meType;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetDefaultType()
{
	ImplClear();
	meType = GRAPHIC_DEFAULT;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsSupportedGraphic() const
{
	return( meType != GRAPHIC_NONE );
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsTransparent() const
{
	sal_Bool bRet(sal_True);

    if( meType == GRAPHIC_BITMAP && !maSvgData.get())
    {
		bRet = ( mpAnimation ? mpAnimation->IsTransparent() : maEx.IsTransparent() );
    }

	return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsAlpha() const
{
	sal_Bool bRet(sal_False);

    if(maSvgData.get())
    {
        bRet = sal_True;
    }
    else if( meType == GRAPHIC_BITMAP )
    {
		bRet = ( NULL == mpAnimation ) && maEx.IsAlpha();
    }

	return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsAnimated() const
{
	return( mpAnimation != NULL );
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsEPS() const
{
    return( ( meType == GRAPHIC_GDIMETAFILE ) &&
            ( maMetaFile.GetActionCount() > 0 ) &&
            ( maMetaFile.GetAction( 0 )->GetType() == META_EPS_ACTION ) );
}

// ------------------------------------------------------------------------

Bitmap ImpGraphic::ImplGetBitmap(const GraphicConversionParameters& rParameters) const
{
    Bitmap aRetBmp;

    if( meType == GRAPHIC_BITMAP )
    {
        if(maSvgData.get() && maEx.IsEmpty())
        {
            // use maEx as local buffer for rendered svg
            const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
        }

		const BitmapEx& rRetBmpEx = ( mpAnimation ? mpAnimation->GetBitmapEx() : maEx );
		const Color		aReplaceColor( COL_WHITE );

		aRetBmp = rRetBmpEx.GetBitmap( &aReplaceColor );

        if(rParameters.getSizePixel().Width() || rParameters.getSizePixel().Height())
            aRetBmp.Scale(rParameters.getSizePixel());
    }
    else if( ( meType != GRAPHIC_DEFAULT ) && ImplIsSupportedGraphic() )
    {
        if(maEx.IsEmpty())
        {
            // calculate size
            VirtualDevice aVDev;
            Size aDrawSize(aVDev.LogicToPixel(maMetaFile.GetPrefSize(), maMetaFile.GetPrefMapMode()));

            if(rParameters.getSizePixel().Width() && rParameters.getSizePixel().Height())
            {
                // apply given size if exists
                aDrawSize = rParameters.getSizePixel();
            }

            if(aDrawSize.Width() && aDrawSize.Height() && !rParameters.getUnlimitedSize()
                && (aDrawSize.Width() > GRAPHIC_MTFTOBMP_MAXEXT || aDrawSize.Height() > GRAPHIC_MTFTOBMP_MAXEXT))
            {
                // limit bitmap size to a maximum of GRAPHIC_MTFTOBMP_MAXEXT x GRAPHIC_MTFTOBMP_MAXEXT
                double fWH((double)aDrawSize.Width() / (double)aDrawSize.Height());

                if(fWH <= 1.0)
                {
                    aDrawSize.setWidth(basegfx::fround(GRAPHIC_MTFTOBMP_MAXEXT * fWH));
                    aDrawSize.setHeight(GRAPHIC_MTFTOBMP_MAXEXT);
                }
                else
                {
                    aDrawSize.setWidth(GRAPHIC_MTFTOBMP_MAXEXT);
                    aDrawSize.setHeight(basegfx::fround(GRAPHIC_MTFTOBMP_MAXEXT / fWH));
                }
            }

            // calculate pixel size. Normally, it's the same as aDrawSize, but may
            // need to be extended when hairlines are on the right or bottom edge
            Size aPixelSize(aDrawSize);

            if(GRAPHIC_GDIMETAFILE == ImplGetType())
            {
                // get hairline and full bound rect
                Rectangle aHairlineRect;
                const Rectangle aRect(maMetaFile.GetBoundRect(aVDev, &aHairlineRect));

                if(!aRect.IsEmpty() && !aHairlineRect.IsEmpty())
                {
                    // expand if needed to allow bottom and right hairlines to be added
                    if(aRect.Right() == aHairlineRect.Right())
                    {
                        aPixelSize.setWidth(aPixelSize.getWidth() + 1);
                    }

                    if(aRect.Bottom() == aHairlineRect.Bottom())
                    {
                        aPixelSize.setHeight(aPixelSize.getHeight() + 1);
                    }
                }
            }

            if(aVDev.SetOutputSizePixel(aPixelSize))
            {
                if(rParameters.getAntiAliase())
                {
                    aVDev.SetAntialiasing(aVDev.GetAntialiasing() | ANTIALIASING_ENABLE_B2DDRAW);
                }

                if(rParameters.getSnapHorVerLines())
                {
                    aVDev.SetAntialiasing(aVDev.GetAntialiasing() | ANTIALIASING_PIXELSNAPHAIRLINE);
                }

                ImplDraw( &aVDev, Point(), aDrawSize );

                // use maEx as local buffer for rendered metafile
                const_cast< ImpGraphic* >(this)->maEx = aVDev.GetBitmap( Point(), aVDev.GetOutputSizePixel() );
            }
        }

        aRetBmp = maEx.GetBitmap();
    }

	if( !!aRetBmp )
	{
		aRetBmp.SetPrefMapMode( ImplGetPrefMapMode() );
		aRetBmp.SetPrefSize( ImplGetPrefSize() );
	}

    return aRetBmp;
}

// ------------------------------------------------------------------------

BitmapEx ImpGraphic::ImplGetBitmapEx(const GraphicConversionParameters& rParameters) const
{
    BitmapEx aRetBmpEx;

    if( meType == GRAPHIC_BITMAP )
    {
        if(maSvgData.get() && maEx.IsEmpty())
        {
            // use maEx as local buffer for rendered svg
            const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
        }

		aRetBmpEx = ( mpAnimation ? mpAnimation->GetBitmapEx() : maEx );

        if(rParameters.getSizePixel().Width() || rParameters.getSizePixel().Height())
        {
            aRetBmpEx.Scale(
                rParameters.getSizePixel(),
                rParameters.getScaleHighQuality() ? BMP_SCALE_BESTQUALITY : BMP_SCALE_FASTESTINTERPOLATE);
        }
    }
    else if( ( meType != GRAPHIC_DEFAULT ) && ImplIsSupportedGraphic() )
    {
        if(maEx.IsEmpty())
        {
		    const ImpGraphic aMonoMask( maMetaFile.GetMonochromeMtf( COL_BLACK ) );

            // use maEx as local buffer for rendered metafile
            const_cast< ImpGraphic* >(this)->maEx = BitmapEx(ImplGetBitmap(rParameters), aMonoMask.ImplGetBitmap(rParameters));
        }

        aRetBmpEx = maEx;
    }

    return aRetBmpEx;
}

// ------------------------------------------------------------------------

Animation ImpGraphic::ImplGetAnimation() const
{
	Animation aAnimation;

	if( mpAnimation )
		aAnimation = *mpAnimation;

	return aAnimation;
}

// ------------------------------------------------------------------------

const GDIMetaFile& ImpGraphic::ImplGetGDIMetaFile() const
{
    if(GRAPHIC_BITMAP == meType && !maMetaFile.GetActionCount())
    {
        // #119735#
        // Use the local maMetaFile as container for a metafile-representation
        // of the bitmap graphic. This will be done only once, thus be buffered.
        // I checked all usages of maMetaFile, it is only used when type is not
        // GRAPHIC_BITMAP. In operator= it will get copied, thus buffering will
        // survive copying (change this if not wanted)
        ImpGraphic* pThat = const_cast< ImpGraphic* >(this);

        if(maSvgData.get() && !maEx)
        {
            // use maEx as local buffer for rendered svg
            pThat->maEx = maSvgData->getReplacement();
        }

        VirtualDevice aVirDev;
        const Size aSizePixel(maEx.GetSizePixel());

        pThat->maMetaFile.Record(&aVirDev);

        if(maEx.IsTransparent())
        {
            aVirDev.DrawBitmapEx(Point(), maEx);
        }
        else
        {
            aVirDev.DrawBitmap(Point(), maEx.GetBitmap());
        }

		pThat->maMetaFile.Stop();
		pThat->maMetaFile.SetPrefSize(aSizePixel);
    }

    return maMetaFile;
}

// ------------------------------------------------------------------------

Size ImpGraphic::ImplGetPrefSize() const
{
	Size aSize;

	if( ImplIsSwapOut() )
		aSize = maSwapInfo.maPrefSize;
	else
	{
		switch( meType )
		{
			case( GRAPHIC_NONE ):
			case( GRAPHIC_DEFAULT ):
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get() && maEx.IsEmpty())
                {
                    // svg not yet buffered in maEx, return size derived from range
                    const basegfx::B2DRange& rRange = maSvgData->getRange();

                    aSize = Size(basegfx::fround(rRange.getWidth()), basegfx::fround(rRange.getHeight()));
                }
                else
                {
                    aSize = maEx.GetPrefSize();

				    if( !aSize.Width() || !aSize.Height() )
                    {
					    aSize = maEx.GetSizePixel();
                    }
                }
			}
			break;

			default:
			{
				if( ImplIsSupportedGraphic() )
				  aSize = maMetaFile.GetPrefSize();
			}
			break;
		}
	}

	return aSize;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetPrefSize( const Size& rPrefSize )
{
    switch( meType )
    {
        case( GRAPHIC_NONE ):
        case( GRAPHIC_DEFAULT ):
		break;

		case( GRAPHIC_BITMAP ):
        {
            // #108077# Push through pref size to animation object,
            // will be lost on copy otherwise
            if(maSvgData.get())
            {
                // ignore for Svg. If this is really used (except the grfcache)
                // it can be extended by using maEx as buffer for maSvgData->getReplacement()
            }
            else
            {
                if( ImplIsAnimated() )
                {
                    const_cast< BitmapEx& >(mpAnimation->GetBitmapEx()).SetPrefSize( rPrefSize );
                }

                maEx.SetPrefSize( rPrefSize );
            }
        }
		break;

        default:
		{
			if( ImplIsSupportedGraphic() )
				maMetaFile.SetPrefSize( rPrefSize );
		}
		break;
    }
}

// ------------------------------------------------------------------------

MapMode ImpGraphic::ImplGetPrefMapMode() const
{
	MapMode aMapMode;

	if( ImplIsSwapOut() )
		aMapMode = maSwapInfo.maPrefMapMode;
	else
	{
		switch( meType )
		{
			case( GRAPHIC_NONE ):
			case( GRAPHIC_DEFAULT ):
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get() && maEx.IsEmpty())
                {
                    // svg not yet buffered in maEx, return default PrefMapMode
                    aMapMode = MapMode(MAP_100TH_MM);
                }
                else
                {
				    const Size aSize( maEx.GetPrefSize() );

				    if ( aSize.Width() && aSize.Height() )
					    aMapMode = maEx.GetPrefMapMode();
                }
			}
			break;

			default:
			{
				if( ImplIsSupportedGraphic() )
					return maMetaFile.GetPrefMapMode();
			}
			break;
		}
	}

	return aMapMode;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetPrefMapMode( const MapMode& rPrefMapMode )
{
    switch( meType )
    {
        case( GRAPHIC_NONE ):
        case( GRAPHIC_DEFAULT ):
		break;

		case( GRAPHIC_BITMAP ):
        {
            if(maSvgData.get())
            {
                // ignore for Svg. If this is really used (except the grfcache)
                // it can be extended by using maEx as buffer for maSvgData->getReplacement()
            }
            else
            {
                // #108077# Push through pref mapmode to animation object,
                // will be lost on copy otherwise
                if( ImplIsAnimated() )
                {
                    const_cast< BitmapEx& >(mpAnimation->GetBitmapEx()).SetPrefMapMode( rPrefMapMode );
                }

			    maEx.SetPrefMapMode( rPrefMapMode );
            }
        }
		break;

        default:
		{
			if( ImplIsSupportedGraphic() )
				maMetaFile.SetPrefMapMode( rPrefMapMode );
		}
		break;
    }
}

// ------------------------------------------------------------------------

sal_uLong ImpGraphic::ImplGetSizeBytes() const
{
    if( 0 == mnSizeBytes )
    {
        if( meType == GRAPHIC_BITMAP )
	    {
            if(maSvgData.get())
            {
                mnSizeBytes = maSvgData->getSvgDataArrayLength();
            }
            else
            {
                mnSizeBytes = mpAnimation ? mpAnimation->GetSizeBytes() : maEx.GetSizeBytes();
            }
        }
        else if( meType == GRAPHIC_GDIMETAFILE )
        {
            mnSizeBytes = maMetaFile.GetSizeBytes();
        }
    }

	return( mnSizeBytes );
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplDraw( OutputDevice* pOutDev, const Point& rDestPt ) const
{
    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() )
	{
		switch( meType )
		{
			case( GRAPHIC_DEFAULT ):
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get() && !maEx)
                {
                    // use maEx as local buffer for rendered svg
                    const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
                }

                if ( mpAnimation )
                {
					mpAnimation->Draw( pOutDev, rDestPt );
                }
				else
                {
					maEx.Draw( pOutDev, rDestPt );
                }
			}
			break;

			default:
				ImplDraw( pOutDev, rDestPt, maMetaFile.GetPrefSize() );
			break;
		}
	}
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplDraw( OutputDevice* pOutDev,
						   const Point& rDestPt, const Size& rDestSize ) const
{
    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() )
	{
		switch( meType )
		{
			case( GRAPHIC_DEFAULT ):
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get() && maEx.IsEmpty())
                {
                    // use maEx as local buffer for rendered svg
                    const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
                }

                if( mpAnimation )
                {
					mpAnimation->Draw( pOutDev, rDestPt, rDestSize );
                }
				else
                {
					maEx.Draw( pOutDev, rDestPt, rDestSize );
                }
			}
			break;

			default:
			{
				( (ImpGraphic*) this )->maMetaFile.WindStart();
				( (ImpGraphic*) this )->maMetaFile.Play( pOutDev, rDestPt, rDestSize );
				( (ImpGraphic*) this )->maMetaFile.WindStart();
			}
			break;
		}
	}
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplStartAnimation( OutputDevice* pOutDev,
									 const Point& rDestPt,
									 long nExtraData,
									 OutputDevice* pFirstFrameOutDev )
{
    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() && mpAnimation )
	    mpAnimation->Start( pOutDev, rDestPt, nExtraData, pFirstFrameOutDev );
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplStartAnimation( OutputDevice* pOutDev, const Point& rDestPt,
									 const Size& rDestSize, long nExtraData,
									 OutputDevice* pFirstFrameOutDev )
{
    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() && mpAnimation )
	    mpAnimation->Start( pOutDev, rDestPt, rDestSize, nExtraData, pFirstFrameOutDev );
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplStopAnimation( OutputDevice* pOutDev, long nExtraData )
{
    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() && mpAnimation )
	    mpAnimation->Stop( pOutDev, nExtraData );
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetAnimationNotifyHdl( const Link& rLink )
{
	if( mpAnimation )
		mpAnimation->SetNotifyHdl( rLink );
}

// ------------------------------------------------------------------------

Link ImpGraphic::ImplGetAnimationNotifyHdl() const
{
	Link aLink;

	if( mpAnimation )
		aLink = mpAnimation->GetNotifyHdl();

	return aLink;
}

// ------------------------------------------------------------------------

sal_uLong ImpGraphic::ImplGetAnimationLoopCount() const
{
	return( mpAnimation ? mpAnimation->GetLoopCount() : 0UL );
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplResetAnimationLoopCount()
{
	if( mpAnimation )
		mpAnimation->ResetLoopCount();
}

// ------------------------------------------------------------------------

List* ImpGraphic::ImplGetAnimationInfoList() const
{
	return( mpAnimation ? mpAnimation->GetAInfoList() : NULL );
}

// ------------------------------------------------------------------------

GraphicReader* ImpGraphic::ImplGetContext()
{
	return mpContext;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetContext( GraphicReader* pReader )
{
	mpContext = pReader;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetDocFileName( const String& rName, sal_uLong nFilePos )
{
	const INetURLObject aURL( rName );

	DBG_ASSERT( !rName.Len() || ( aURL.GetProtocol() != INET_PROT_NOT_VALID ), "Graphic::SetDocFileName(...): invalid URL" );

	maDocFileURLStr = aURL.GetMainURL( INetURLObject::NO_DECODE );
	mnDocFilePos = nFilePos;
}

// ------------------------------------------------------------------------

const String& ImpGraphic::ImplGetDocFileName() const
{
	return maDocFileURLStr;
}

// ------------------------------------------------------------------------

sal_uLong ImpGraphic::ImplGetDocFilePos() const
{
	return mnDocFilePos;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplReadEmbedded( SvStream& rIStm, sal_Bool bSwap )
{
	MapMode			aMapMode;
	Size			aSize;
    const sal_uLong		nStartPos = rIStm.Tell();
	sal_uInt32		nId;
	sal_uLong			nHeaderLen;
	long			nType;
	long			nLen;
    const sal_uInt16	nOldFormat = rIStm.GetNumberFormatInt();
	sal_Bool			bRet = sal_False;

    if( !mbSwapUnderway )
    {
        const String		aTempURLStr( maDocFileURLStr );
        const sal_uLong			nTempPos = mnDocFilePos;

		ImplClear();

        maDocFileURLStr = aTempURLStr;
        mnDocFilePos = nTempPos;
    }

    rIStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
	rIStm >> nId;

	// check version
	if( GRAPHIC_FORMAT_50 == nId )
	{
		// read new style header
		VersionCompat* pCompat = new VersionCompat( rIStm, STREAM_READ );

		rIStm >> nType;
		rIStm >> nLen;
		rIStm >> aSize;
		rIStm >> aMapMode;

		delete pCompat;
	}
	else
	{
		// read old style header
	    long nWidth, nHeight;
	    long nMapMode, nScaleNumX, nScaleDenomX;
		long nScaleNumY, nScaleDenomY, nOffsX, nOffsY;

		rIStm.SeekRel( -4L );

		rIStm >> nType >> nLen >> nWidth >> nHeight;
		rIStm >> nMapMode >> nScaleNumX >> nScaleDenomX >> nScaleNumY;
		rIStm >> nScaleDenomY >> nOffsX >> nOffsY;

		// swapped
		if( nType > 100L )
		{
			nType = SWAPLONG( nType );
			nLen = SWAPLONG( nLen );
			nWidth = SWAPLONG( nWidth );
			nHeight = SWAPLONG( nHeight );
			nMapMode = SWAPLONG( nMapMode );
			nScaleNumX = SWAPLONG( nScaleNumX );
			nScaleDenomX = SWAPLONG( nScaleDenomX );
			nScaleNumY = SWAPLONG( nScaleNumY );
			nScaleDenomY = SWAPLONG( nScaleDenomY );
			nOffsX = SWAPLONG( nOffsX );
			nOffsY = SWAPLONG( nOffsY );
		}

		aSize = Size( nWidth, nHeight );
		aMapMode = MapMode( (MapUnit) nMapMode, Point( nOffsX, nOffsY ),
							Fraction( nScaleNumX, nScaleDenomX ),
							Fraction( nScaleNumY, nScaleDenomY ) );
	}

	nHeaderLen = rIStm.Tell() - nStartPos;
    meType = (GraphicType) nType;

	if( meType )
	{
		if( meType == GRAPHIC_BITMAP )
		{
            if(maSvgData.get() && maEx.IsEmpty())
            {
                // use maEx as local buffer for rendered svg
                maEx = maSvgData->getReplacement();
            }

            maEx.aBitmapSize = aSize;

			if( aMapMode != MapMode() )
			{
				maEx.SetPrefMapMode( aMapMode );
				maEx.SetPrefSize( aSize );
			}
		}
		else
		{
			maMetaFile.SetPrefMapMode( aMapMode );
			maMetaFile.SetPrefSize( aSize );
		}

		if( bSwap )
		{
			if( maDocFileURLStr.Len() )
			{
				rIStm.Seek( nStartPos + nHeaderLen + nLen );
				bRet = mbSwapOut = sal_True;
			}
			else
			{
				::utl::TempFile		aTempFile;
				const INetURLObject	aTmpURL( aTempFile.GetURL() );

				if( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ).getLength() )
				{
					SvStream* pOStm = ::utl::UcbStreamHelper::CreateStream( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ), STREAM_READWRITE | STREAM_SHARE_DENYWRITE );

					if( pOStm )
					{
						sal_uLong	nFullLen = nHeaderLen + nLen;
						sal_uLong	nPartLen = Min( nFullLen, (sal_uLong) GRAPHIC_MAXPARTLEN );
						sal_uInt8*	pBuffer = (sal_uInt8*) rtl_allocateMemory( nPartLen );

		      			pOStm->SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );

						if( pBuffer )
						{
							rIStm.Seek( nStartPos );

							while( nFullLen )
							{
								rIStm.Read( (char*) pBuffer, nPartLen );
								pOStm->Write( (char*) pBuffer, nPartLen );

								nFullLen -= nPartLen;

								if( nFullLen < GRAPHIC_MAXPARTLEN )
									nPartLen = nFullLen;
							}

							rtl_freeMemory( pBuffer );
							sal_uLong nReadErr = rIStm.GetError(), nWriteErr = pOStm->GetError();
							delete pOStm, pOStm = NULL;

							if( !nReadErr && !nWriteErr )
							{
								bRet = mbSwapOut = sal_True;
								mpSwapFile = new ImpSwapFile;
								mpSwapFile->nRefCount = 1;
								mpSwapFile->aSwapURL = aTmpURL;
							}
							else
							{
								try
								{
									::ucbhelper::Content aCnt( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ),
														 ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >() );

									aCnt.executeCommand( ::rtl::OUString::createFromAscii( "delete" ),
														 ::com::sun::star::uno::makeAny( sal_Bool( sal_True ) ) );
								}
								catch( const ::com::sun::star::ucb::ContentCreationException& )
								{
								}
								catch( const ::com::sun::star::uno::RuntimeException& )
								{
								}
								catch( const ::com::sun::star::ucb::CommandAbortedException& )
								{
            					}
        		                catch( const ::com::sun::star::uno::Exception& )
		                        {
		                        }
							}
						}

						delete pOStm;
					}
				}
			}
		}
		else if( meType == GRAPHIC_BITMAP || meType == GRAPHIC_GDIMETAFILE )
		{
			rIStm >> *this;
			bRet = ( rIStm.GetError() == 0UL );
		}
		else if( meType >= SYS_WINMETAFILE && meType <= SYS_MACMETAFILE )
		{
			Graphic aSysGraphic;
			sal_uLong	nCvtType;

			switch( sal::static_int_cast<sal_uLong>(meType) )
			{
				case( SYS_WINMETAFILE ):
				case( SYS_WNTMETAFILE ): nCvtType = CVT_WMF; break;
				case( SYS_OS2METAFILE ): nCvtType = CVT_MET; break;
				case( SYS_MACMETAFILE ): nCvtType = CVT_PCT; break;

				default:
					nCvtType = CVT_UNKNOWN;
				break;
			}

			if( nType && GraphicConverter::Import( rIStm, aSysGraphic, nCvtType ) == ERRCODE_NONE )
			{
				*this = ImpGraphic( aSysGraphic.GetGDIMetaFile() );
				bRet = ( rIStm.GetError() == 0UL );
			}
			else
				meType = GRAPHIC_DEFAULT;
		}

		if( bRet )
		{
			ImplSetPrefMapMode( aMapMode );
			ImplSetPrefSize( aSize );
		}
	}
	else
		bRet = sal_True;

	rIStm.SetNumberFormatInt( nOldFormat );

	return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplWriteEmbedded( SvStream& rOStm )
{
	sal_Bool bRet = sal_False;

	if( ( meType != GRAPHIC_NONE ) && ( meType != GRAPHIC_DEFAULT ) && !ImplIsSwapOut() )
	{
		const MapMode	aMapMode( ImplGetPrefMapMode() );
		const Size		aSize( ImplGetPrefSize() );
		const sal_uInt16	nOldFormat = rOStm.GetNumberFormatInt();
		sal_uLong			nDataFieldPos;

		rOStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );

		// write correct version ( old style/new style header )
		if( rOStm.GetVersion() >= SOFFICE_FILEFORMAT_50 )
		{
			// write ID for new format (5.0)
			rOStm << GRAPHIC_FORMAT_50;

			// write new style header
			VersionCompat* pCompat = new VersionCompat( rOStm, STREAM_WRITE, 1 );

			rOStm << (long) meType;

			// data size is updated later
			nDataFieldPos = rOStm.Tell();
			rOStm << (long) 0;

			rOStm << aSize;
			rOStm << aMapMode;

			delete pCompat;
		}
		else
		{
			// write old style (<=4.0) header
			rOStm << (long) meType;

			// data size is updated later
			nDataFieldPos = rOStm.Tell();
			rOStm << (long) 0;

			rOStm << (long) aSize.Width();
			rOStm << (long) aSize.Height();
			rOStm << (long) aMapMode.GetMapUnit();
			rOStm << (long) aMapMode.GetScaleX().GetNumerator();
			rOStm << (long) aMapMode.GetScaleX().GetDenominator();
			rOStm << (long) aMapMode.GetScaleY().GetNumerator();
			rOStm << (long) aMapMode.GetScaleY().GetDenominator();
			rOStm << (long) aMapMode.GetOrigin().X();
			rOStm << (long) aMapMode.GetOrigin().Y();
		}

		// write data block
		if( !rOStm.GetError() )
		{
			const sal_uLong nDataStart = rOStm.Tell();

			if( ImplIsSupportedGraphic() )
				rOStm << *this;

			if( !rOStm.GetError() )
			{
				const sal_uLong nStmPos2 = rOStm.Tell();
				rOStm.Seek( nDataFieldPos );
				rOStm << (long) ( nStmPos2 - nDataStart );
				rOStm.Seek( nStmPos2 );
				bRet = sal_True;
			}
		}

		rOStm.SetNumberFormatInt( nOldFormat );
	}

	return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplSwapOut()
{
	sal_Bool bRet = sal_False;

    if( !ImplIsSwapOut() )
	{
		if( !maDocFileURLStr.Len() )
		{
			::utl::TempFile		aTempFile;
			const INetURLObject	aTmpURL( aTempFile.GetURL() );

			if( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ).getLength() )
			{
				SvStream* pOStm = ::utl::UcbStreamHelper::CreateStream( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ), STREAM_READWRITE | STREAM_SHARE_DENYWRITE );

				if( pOStm )
				{
                    pOStm->SetVersion( SOFFICE_FILEFORMAT_50 );
					pOStm->SetCompressMode( COMPRESSMODE_NATIVE );

					if( ( bRet = ImplSwapOut( pOStm ) ) == sal_True )
					{
						mpSwapFile = new ImpSwapFile;
						mpSwapFile->nRefCount = 1;
						mpSwapFile->aSwapURL = aTmpURL;
					}
					else
					{
						delete pOStm, pOStm = NULL;

						try
						{
							::ucbhelper::Content aCnt( aTmpURL.GetMainURL( INetURLObject::NO_DECODE ),
												 ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >() );

							aCnt.executeCommand( ::rtl::OUString::createFromAscii( "delete" ),
												 ::com::sun::star::uno::makeAny( sal_Bool( sal_True ) ) );
						}
						catch( const ::com::sun::star::ucb::ContentCreationException& )
						{
						}
						catch( const ::com::sun::star::uno::RuntimeException& )
						{
						}
						catch( const ::com::sun::star::ucb::CommandAbortedException& )
						{
						}
        		        catch( const ::com::sun::star::uno::Exception& )
		                {
		                }
					}

					delete pOStm;
				}
			}
		}
		else
		{
			ImplClearGraphics( sal_True );
			bRet = mbSwapOut = sal_True;
		}
	}

    return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplSwapOut( SvStream* pOStm )
{
	sal_Bool bRet = sal_False;

    if( pOStm )
    {
        pOStm->SetBufferSize( GRAPHIC_STREAMBUFSIZE );

		if( !pOStm->GetError() && ImplWriteEmbedded( *pOStm ) )
		{
			pOStm->Flush();

			if( !pOStm->GetError() )
			{
				ImplClearGraphics( sal_True );
				bRet = mbSwapOut = sal_True;
			}
		}
    }
	else
	{
		ImplClearGraphics( sal_True );
		bRet = mbSwapOut = sal_True;
	}

    return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplSwapIn()
{
    sal_Bool bRet = sal_False;

	if( ImplIsSwapOut() )
	{
		String aSwapURL;

		if( mpSwapFile )
			aSwapURL = mpSwapFile->aSwapURL.GetMainURL( INetURLObject::NO_DECODE );
		else
			aSwapURL = maDocFileURLStr;

		if( aSwapURL.Len() )
		{
			SvStream* pIStm = ::utl::UcbStreamHelper::CreateStream( aSwapURL, STREAM_READWRITE | STREAM_SHARE_DENYWRITE );

			if( pIStm )
			{
                pIStm->SetVersion( SOFFICE_FILEFORMAT_50 );
				pIStm->SetCompressMode( COMPRESSMODE_NATIVE );

				if( !mpSwapFile )
					pIStm->Seek( mnDocFilePos );

				bRet = ImplSwapIn( pIStm );
				delete pIStm;

				if( mpSwapFile )
				{
					if( mpSwapFile->nRefCount > 1 )
						mpSwapFile->nRefCount--;
					else
					{
						try
						{
							::ucbhelper::Content aCnt( aSwapURL,
												 ::com::sun::star::uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >() );

							aCnt.executeCommand( ::rtl::OUString::createFromAscii( "delete" ),
												 ::com::sun::star::uno::makeAny( sal_Bool( sal_True ) ) );
						}
						catch( const ::com::sun::star::ucb::ContentCreationException& )
						{
						}
						catch( const ::com::sun::star::uno::RuntimeException& )
						{
						}
						catch( const ::com::sun::star::ucb::CommandAbortedException& )
						{
						}
        		        catch( const ::com::sun::star::uno::Exception& )
		                {
		                }

						delete mpSwapFile;
					}

					mpSwapFile = NULL;
				}
			}
		}
	}

    return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplSwapIn( SvStream* pIStm )
{
	sal_Bool bRet = sal_False;

    if( pIStm )
	{
		pIStm->SetBufferSize( GRAPHIC_STREAMBUFSIZE );

		if( !pIStm->GetError() )
		{
			mbSwapUnderway = sal_True;
			bRet = ImplReadEmbedded( *pIStm );
			mbSwapUnderway = sal_False;

			if( !bRet )
				ImplClear();
			else
				mbSwapOut = sal_False;
		}
	}

    return bRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsSwapOut() const
{
	return mbSwapOut;
}

// ------------------------------------------------------------------------

void ImpGraphic::ImplSetLink( const	GfxLink& rGfxLink )
{
	delete mpGfxLink;
	mpGfxLink = new GfxLink( rGfxLink );

	if( mpGfxLink->IsNative() )
		mpGfxLink->SwapOut();
}

// ------------------------------------------------------------------------

GfxLink ImpGraphic::ImplGetLink()
{
	return( mpGfxLink ? *mpGfxLink : GfxLink() );
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplIsLink() const
{
	return ( mpGfxLink != NULL ) ? sal_True : sal_False;
}

// ------------------------------------------------------------------------

sal_uLong ImpGraphic::ImplGetChecksum() const
{
	sal_uLong nRet = 0;

    if( ImplIsSupportedGraphic() && !ImplIsSwapOut() )
	{
		switch( meType )
		{
			case( GRAPHIC_DEFAULT ):
			break;

			case( GRAPHIC_BITMAP ):
			{
                if(maSvgData.get() && maEx.IsEmpty())
                {
                    // use maEx as local buffer for rendered svg
                    const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
                }

                if( mpAnimation )
                {
					nRet = mpAnimation->GetChecksum();
                }
				else
                {
					nRet = maEx.GetChecksum();
                }
			}
			break;

			default:
				nRet = maMetaFile.GetChecksum();
			break;
		}
	}

	return nRet;
}

// ------------------------------------------------------------------------

sal_Bool ImpGraphic::ImplExportNative( SvStream& rOStm ) const
{
	sal_Bool bResult = sal_False;

	if( !rOStm.GetError() )
	{
		if( !ImplIsSwapOut() )
		{
			if( mpGfxLink && mpGfxLink->IsNative() )
				bResult = mpGfxLink->ExportNative( rOStm );
			else
			{
				rOStm << *this;
				bResult = ( rOStm.GetError() == ERRCODE_NONE );
			}
		}
		else
			 rOStm.SetError( SVSTREAM_GENERALERROR );
	}

	return bResult;
}

// ------------------------------------------------------------------------

const SvgDataPtr& ImpGraphic::getSvgData() const
{
    return maSvgData;
}

// ------------------------------------------------------------------------

SvStream& operator>>( SvStream& rIStm, ImpGraphic& rImpGraphic )
{
	if( !rIStm.GetError() )
	{
		const sal_uLong	nStmPos1 = rIStm.Tell();
		sal_uInt32 nTmp;

		if ( !rImpGraphic.mbSwapUnderway )
			rImpGraphic.ImplClear();

		// read Id
		rIStm >> nTmp;

        // if there is no more data, avoid further expensive
        // reading which will create VDevs and other stuff, just to
        // read nothing. CAUTION: Eof is only true AFTER reading another
        // byte, a speciality of SvMemoryStream (!)
        if(!rIStm.GetError() && !rIStm.IsEof())
        {
		    if( NATIVE_FORMAT_50 == nTmp )
		    {
			    Graphic			aGraphic;
			    GfxLink			aLink;
			    VersionCompat*	pCompat;

			    // read compat info
			    pCompat = new VersionCompat( rIStm, STREAM_READ );
			    delete pCompat;

			    rIStm >> aLink;

			    // set dummy link to avoid creation of additional link after filtering;
			    // we set a default link to avoid unnecessary swapping of native data
			    aGraphic.SetLink( GfxLink() );

			    if( !rIStm.GetError() && aLink.LoadNative( aGraphic ) )
			    {
				    // set link only, if no other link was set
				    const sal_Bool bSetLink = ( rImpGraphic.mpGfxLink == NULL );

				    // assign graphic
				    rImpGraphic = *aGraphic.ImplGetImpGraphic();

                    if( aLink.IsPrefMapModeValid() )
                        rImpGraphic.ImplSetPrefMapMode( aLink.GetPrefMapMode() );

                    if( aLink.IsPrefSizeValid() )
                        rImpGraphic.ImplSetPrefSize( aLink.GetPrefSize() );

				    if( bSetLink )
					    rImpGraphic.ImplSetLink( aLink );
			    }
			    else
			    {
				    rIStm.Seek( nStmPos1 );
				    rIStm.SetError( ERRCODE_IO_WRONGFORMAT );
			    }
		    }
		    else
		    {
			    BitmapEx		aBmpEx;
			    const sal_uInt16	nOldFormat = rIStm.GetNumberFormatInt();

			    rIStm.SeekRel( -4 );
			    rIStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
                ReadDIBBitmapEx(aBmpEx, rIStm);

			    if( !rIStm.GetError() )
			    {
				    sal_uInt32	nMagic1(0), nMagic2(0);
				    sal_uLong	nActPos = rIStm.Tell();

				    rIStm >> nMagic1 >> nMagic2;
				    rIStm.Seek( nActPos );

				    rImpGraphic = ImpGraphic( aBmpEx );

				    if( !rIStm.GetError() && ( 0x5344414e == nMagic1 ) && ( 0x494d4931 == nMagic2 ) )
				    {
					    delete rImpGraphic.mpAnimation;
					    rImpGraphic.mpAnimation = new Animation;
					    rIStm >> *rImpGraphic.mpAnimation;

                        // #108077# manually set loaded BmpEx to Animation
                        // (which skips loading its BmpEx if already done)
                        rImpGraphic.mpAnimation->SetBitmapEx(aBmpEx);
				    }
				    else
					    rIStm.ResetError();
			    }
			    else
			    {
				    GDIMetaFile aMtf;

				    rIStm.Seek( nStmPos1 );
				    rIStm.ResetError();
				    rIStm >> aMtf;

				    if( !rIStm.GetError() )
                    {
					    rImpGraphic = aMtf;
                    }
				    else
                    {
                        // try to stream in Svg defining data (length, byte array and evtl. path)
                        // See below (operator<<) for more information
                        const sal_uInt32 nSvgMagic((sal_uInt32('s') << 24) | (sal_uInt32('v') << 16) | (sal_uInt32('g') << 8) | sal_uInt32('0'));
                        sal_uInt32 nMagic;
                        rIStm.Seek(nStmPos1);
                        rIStm.ResetError();
                        rIStm >> nMagic;

                        if(nSvgMagic == nMagic)
                        {
                            sal_uInt32 mnSvgDataArrayLength(0);
                            rIStm >> mnSvgDataArrayLength;

                            if(mnSvgDataArrayLength)
                            {
                                SvgDataArray aNewData(new sal_uInt8[mnSvgDataArrayLength]);
                                UniString aPath;

                                rIStm.Read(aNewData.get(), mnSvgDataArrayLength);
                                rIStm.ReadByteString(aPath);

                                if(!rIStm.GetError())
                                {
                                    SvgDataPtr aSvgDataPtr(
                                        new SvgData(
                                            aNewData,
                                            mnSvgDataArrayLength,
                                            rtl::OUString(aPath)));

                                    rImpGraphic = aSvgDataPtr;
                                }
                            }
                        }

                        rIStm.Seek(nStmPos1);
                    }
			    }

			    rIStm.SetNumberFormatInt( nOldFormat );
		    }
        }
	}

    return rIStm;
}

// ------------------------------------------------------------------------

SvStream& operator<<( SvStream& rOStm, const ImpGraphic& rImpGraphic )
{
	if( !rOStm.GetError() )
	{
		if( !rImpGraphic.ImplIsSwapOut() )
		{
			if( ( rOStm.GetVersion() >= SOFFICE_FILEFORMAT_50 ) &&
				( rOStm.GetCompressMode() & COMPRESSMODE_NATIVE ) &&
				rImpGraphic.mpGfxLink && rImpGraphic.mpGfxLink->IsNative() )
			{
				VersionCompat* pCompat;

				// native format
				rOStm << NATIVE_FORMAT_50;

				// write compat info
				pCompat = new VersionCompat( rOStm, STREAM_WRITE, 1 );
				delete pCompat;

                rImpGraphic.mpGfxLink->SetPrefMapMode( rImpGraphic.ImplGetPrefMapMode() );
                rImpGraphic.mpGfxLink->SetPrefSize( rImpGraphic.ImplGetPrefSize() );
				rOStm << *rImpGraphic.mpGfxLink;
			}
			else
			{
				// own format
				const sal_uInt16 nOldFormat = rOStm.GetNumberFormatInt();
				rOStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );

				switch( rImpGraphic.ImplGetType() )
				{
					case( GRAPHIC_NONE ):
					case( GRAPHIC_DEFAULT ):
					break;

					case GRAPHIC_BITMAP:
					{
                        if(rImpGraphic.getSvgData().get())
                        {
                            // stream out Svg defining data (length, byte array and evtl. path)
                            // this is used e.g. in swapping out graphic data and in transporting it over UNO API
                            // as sequence of bytes, but AFAIK not written anywhere to any kind of file, so it should be
                            // no problem to extend it; only used at runtime
                            const sal_uInt32 nSvgMagic((sal_uInt32('s') << 24) | (sal_uInt32('v') << 16) | (sal_uInt32('g') << 8) | sal_uInt32('0'));

                            rOStm << nSvgMagic;
                            rOStm << rImpGraphic.getSvgData()->getSvgDataArrayLength();
                            rOStm.Write(rImpGraphic.getSvgData()->getSvgDataArray().get(), rImpGraphic.getSvgData()->getSvgDataArrayLength());
                            rOStm.WriteByteString(rImpGraphic.getSvgData()->getPath());
                        }
						else if( rImpGraphic.ImplIsAnimated())
                        {
							rOStm << *rImpGraphic.mpAnimation;
                        }
						else
                        {
                            WriteDIBBitmapEx(rImpGraphic.maEx, rOStm);
                        }
					}
					break;

					default:
					{
						if( rImpGraphic.ImplIsSupportedGraphic() )
							rOStm << rImpGraphic.maMetaFile;
					}
					break;
				}

				rOStm.SetNumberFormatInt( nOldFormat );
			}
		}
		else
			 rOStm.SetError( SVSTREAM_GENERALERROR );
	}

    return rOStm;
}