xref: /AOO41X/main/vcl/source/gdi/gdimtf.cxx (revision ddde725d65c83fe3ba1186d46f6e3e08f12ba47e)

/**************************************************************
 *
 * 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 <vos/macros.hxx>
#include <rtl/crc.h>
#include <tools/stream.hxx>
#include <tools/vcompat.hxx>
#include <vcl/metaact.hxx>
#include <vcl/salbtype.hxx>
#include <vcl/outdev.hxx>
#include <vcl/window.hxx>
#ifndef _SV_CVTSVM_HXX
#include <vcl/cvtsvm.hxx>
#endif
#include <vcl/virdev.hxx>
#include <vcl/gdimtf.hxx>
#include <vcl/graphictools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>

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

#define GAMMA( _def_cVal, _def_InvGamma )	((sal_uInt8)MinMax(FRound(pow( _def_cVal/255.0,_def_InvGamma)*255.0),0L,255L))

// --------------------------
// - Color exchange structs -
// --------------------------

struct ImplColAdjustParam
{
	sal_uInt8*	pMapR;
	sal_uInt8*	pMapG;
	sal_uInt8*	pMapB;
};

struct ImplBmpAdjustParam
{
	short	nLuminancePercent;
	short	nContrastPercent;
	short	nChannelRPercent;
	short	nChannelGPercent;
	short	nChannelBPercent;
	double	fGamma;
	sal_Bool	bInvert;
};

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

struct ImplColConvertParam
{
	MtfConversion	eConversion;
};

struct ImplBmpConvertParam
{
	BmpConversion	eConversion;
};

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

struct ImplColMonoParam
{
	Color aColor;
};

struct ImplBmpMonoParam
{
	Color aColor;
};

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

struct ImplColReplaceParam
{
	sal_uLong*			pMinR;
	sal_uLong*			pMaxR;
	sal_uLong*			pMinG;
	sal_uLong*			pMaxG;
	sal_uLong*			pMinB;
	sal_uLong*			pMaxB;
	const Color*	pDstCols;
	sal_uLong			nCount;
};

struct ImplBmpReplaceParam
{
	const Color*	pSrcCols;
	const Color*	pDstCols;
	sal_uLong			nCount;
	const sal_uLong*	pTols;
};


// ---------
// - Label -
// ---------

struct ImpLabel
{
	String	aLabelName;
	sal_uLong	nActionPos;

			ImpLabel( const String& rLabelName, sal_uLong _nActionPos ) :
				aLabelName( rLabelName ),
				nActionPos( _nActionPos ) {}
};

// -------------
// - LabelList -
// -------------

class ImpLabelList : private List
{
public:

				ImpLabelList() : List( 8, 4, 4 ) {}
				ImpLabelList( const ImpLabelList& rList );
				~ImpLabelList();

	void		ImplInsert( ImpLabel* p ) { Insert( p, LIST_APPEND ); }
	ImpLabel*	ImplRemove( sal_uLong nPos ) { return (ImpLabel*) Remove( nPos ); }
	void		ImplReplace( ImpLabel* p ) { Replace( (void*)p ); }
	ImpLabel*	ImplFirst() { return (ImpLabel*) First(); }
	ImpLabel*	ImplNext() { return (ImpLabel*) Next(); }
	ImpLabel*	ImplGetLabel( sal_uLong nPos ) const { return (ImpLabel*) GetObject( nPos ); }
	sal_uLong		ImplGetLabelPos( const String& rLabelName );
	sal_uLong		ImplCount() const { return Count(); }
};

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

ImpLabelList::ImpLabelList( const ImpLabelList& rList ) :
		List( rList )
{
	for( ImpLabel* pLabel = ImplFirst(); pLabel; pLabel = ImplNext() )
		ImplReplace( new ImpLabel( *pLabel ) );
}

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

ImpLabelList::~ImpLabelList()
{
	for( ImpLabel* pLabel = ImplFirst(); pLabel; pLabel = ImplNext() )
		delete pLabel;
}

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

sal_uLong ImpLabelList::ImplGetLabelPos( const String& rLabelName )
{
	sal_uLong nLabelPos = METAFILE_LABEL_NOTFOUND;

	for( ImpLabel* pLabel = ImplFirst(); pLabel; pLabel = ImplNext() )
	{
		if ( rLabelName == pLabel->aLabelName )
		{
			nLabelPos = GetCurPos();
			break;
		}
	}

	return nLabelPos;
}

// ---------------
// - GDIMetaFile -
// ---------------

GDIMetaFile::GDIMetaFile() :
	List		( 0x3EFF, 64, 64 ),
	aPrefSize	( 1, 1 ),
	pPrev		( NULL ),
	pNext		( NULL ),
	pOutDev 	( NULL ),
	pLabelList	( NULL ),
	bPause		( sal_False ),
	bRecord 	( sal_False )
{
}

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

GDIMetaFile::GDIMetaFile( const GDIMetaFile& rMtf ) :
	List			( rMtf ),
	aPrefMapMode	( rMtf.aPrefMapMode ),
	aPrefSize		( rMtf.aPrefSize ),
	aHookHdlLink	( rMtf.aHookHdlLink ),
	pPrev			( rMtf.pPrev ),
	pNext			( rMtf.pNext ),
	pOutDev 		( NULL ),
	bPause			( sal_False ),
	bRecord 		( sal_False )
{
	// RefCount der MetaActions erhoehen
	for( void* pAct = First(); pAct; pAct = Next() )
		( (MetaAction*) pAct )->Duplicate();

	if( rMtf.pLabelList )
		pLabelList = new ImpLabelList( *rMtf.pLabelList );
	else
		pLabelList = NULL;

	if( rMtf.bRecord )
	{
		Record( rMtf.pOutDev );

		if ( rMtf.bPause )
			Pause( sal_True );
	}
}

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

GDIMetaFile::~GDIMetaFile()
{
	Clear();
}

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

GDIMetaFile& GDIMetaFile::operator=( const GDIMetaFile& rMtf )
{
	if( this != &rMtf )
	{
		Clear();

		List::operator=( rMtf );

		// RefCount der MetaActions erhoehen
		for( void* pAct = First(); pAct; pAct = Next() )
			( (MetaAction*) pAct )->Duplicate();

		if( rMtf.pLabelList )
			pLabelList = new ImpLabelList( *rMtf.pLabelList );
		else
		   pLabelList = NULL;

		aPrefMapMode = rMtf.aPrefMapMode;
		aPrefSize = rMtf.aPrefSize;
		aHookHdlLink = rMtf.aHookHdlLink;
		pPrev = rMtf.pPrev;
		pNext = rMtf.pNext;
		pOutDev = NULL;
		bPause = sal_False;
		bRecord = sal_False;

		if( rMtf.bRecord )
		{
			Record( rMtf.pOutDev );

			if( rMtf.bPause )
				Pause( sal_True );
		}
	}

	return *this;
}

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

sal_Bool GDIMetaFile::operator==( const GDIMetaFile& rMtf ) const
{
	const sal_uLong nObjCount = Count();
	sal_Bool		bRet = sal_False;

	if( this == &rMtf )
		bRet = sal_True;
	else if( rMtf.GetActionCount() == nObjCount &&
			 rMtf.GetPrefSize() == aPrefSize &&
			 rMtf.GetPrefMapMode() == aPrefMapMode )
	{
		bRet = sal_True;

		for( sal_uLong n = 0UL; n < nObjCount; n++ )
		{
			if( GetObject( n ) != rMtf.GetObject( n ) )
			{
				bRet = sal_False;
				break;
			}
		}
	}

	return bRet;
}

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

sal_Bool GDIMetaFile::IsEqual( const GDIMetaFile& rMtf ) const
{
	const sal_uLong nObjCount = Count();
	sal_Bool		bRet = sal_False;

	if( this == &rMtf )
		bRet = sal_True;
	else if( rMtf.GetActionCount() == nObjCount &&
			 rMtf.GetPrefSize() == aPrefSize &&
			 rMtf.GetPrefMapMode() == aPrefMapMode )
	{
		bRet = sal_True;

		for( sal_uLong n = 0UL; n < nObjCount; n++ )
		{
			if(!((MetaAction*)GetObject( n ))->IsEqual(*((MetaAction*)rMtf.GetObject( n ))))
			{
				bRet = sal_False;
				break;
			}
		}
	}

	return bRet;
}

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

void GDIMetaFile::Clear()
{
	if( bRecord )
		Stop();

	for( void* pAct = First(); pAct; pAct = Next() )
		( (MetaAction*) pAct )->Delete();

	List::Clear();

	delete pLabelList;
	pLabelList = NULL;
}

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

void GDIMetaFile::Linker( OutputDevice* pOut, sal_Bool bLink )
{
	if( bLink )
	{
		pNext = NULL;
		pPrev = pOut->GetConnectMetaFile();
		pOut->SetConnectMetaFile( this );

		if( pPrev )
			pPrev->pNext = this;
	}
	else
	{
		if( pNext )
		{
			pNext->pPrev = pPrev;

			if( pPrev )
				pPrev->pNext = pNext;
		}
		else
		{
			if( pPrev )
				pPrev->pNext = NULL;

			pOut->SetConnectMetaFile( pPrev );
		}

		pPrev = NULL;
		pNext = NULL;
	}
}

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

long GDIMetaFile::Hook()
{
	return aHookHdlLink.Call( this );
}

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

void GDIMetaFile::Record( OutputDevice* pOut )
{
	if( bRecord )
		Stop();

	Last();
	pOutDev = pOut;
	bRecord = sal_True;
	Linker( pOut, sal_True );
}

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

void GDIMetaFile::Play( GDIMetaFile& rMtf, sal_uLong nPos )
{
	if ( !bRecord && !rMtf.bRecord )
	{
		MetaAction* pAction = GetCurAction();
		const sal_uLong nObjCount = Count();

		if( nPos > nObjCount )
			nPos = nObjCount;

		for( sal_uLong nCurPos = GetCurPos(); nCurPos < nPos; nCurPos++ )
		{
			if( !Hook() )
			{
				pAction->Duplicate();
				rMtf.AddAction( pAction );
			}

			pAction = (MetaAction*) Next();
		}
	}
}

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

void GDIMetaFile::Play( OutputDevice* pOut, sal_uLong nPos )
{
	if( !bRecord )
	{
		MetaAction* pAction = GetCurAction();
		const sal_uLong nObjCount = Count();
		sal_uLong		i  = 0, nSyncCount = ( pOut->GetOutDevType() == OUTDEV_WINDOW ) ? 0x000000ff : 0xffffffff;

        if( nPos > nObjCount )
			nPos = nObjCount;

        // #i23407# Set backwards-compatible text language and layout mode
        // This is necessary, since old metafiles don't even know of these
		// recent add-ons. Newer metafiles must of course explicitely set
        // those states.
        pOut->Push( PUSH_TEXTLAYOUTMODE|PUSH_TEXTLANGUAGE );
        pOut->SetLayoutMode( 0 );
        pOut->SetDigitLanguage( 0 );

		for( sal_uLong nCurPos = GetCurPos(); nCurPos < nPos; nCurPos++ )
		{
			if( !Hook() )
			{
				pAction->Execute( pOut );

				// flush output from time to time
				if( i++ > nSyncCount )
					( (Window*) pOut )->Flush(), i = 0;
			}

			pAction = (MetaAction*) Next();
		}

        pOut->Pop();
	}
}

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

void GDIMetaFile::Play( OutputDevice* pOut, const Point& rPos,
						const Size& rSize, sal_uLong nPos )
{
	Region	aDrawClipRegion;
	MapMode aDrawMap( GetPrefMapMode() );
	Size	aDestSize( pOut->LogicToPixel( rSize ) );

	if( aDestSize.Width() && aDestSize.Height() )
	{
		Size			aTmpPrefSize( pOut->LogicToPixel( GetPrefSize(), aDrawMap ) );
		GDIMetaFile*	pMtf = pOut->GetConnectMetaFile();

		if( !aTmpPrefSize.Width() )
			aTmpPrefSize.Width() = aDestSize.Width();

		if( !aTmpPrefSize.Height() )
			aTmpPrefSize.Height() = aDestSize.Height();

		Fraction aScaleX( aDestSize.Width(), aTmpPrefSize.Width() );
		Fraction aScaleY( aDestSize.Height(), aTmpPrefSize.Height() );

		aScaleX *= aDrawMap.GetScaleX(); aDrawMap.SetScaleX( aScaleX );
		aScaleY *= aDrawMap.GetScaleY(); aDrawMap.SetScaleY( aScaleY );

        // #i47260# Convert logical output position to offset within
        // the metafile's mapmode. Therefore, disable pixel offset on
        // outdev, it's inverse mnOutOffLogicX/Y is calculated for a
        // different mapmode (the one currently set on pOut, that is)
        // - thus, aDrawMap's origin would generally be wrong. And
        // even _if_ aDrawMap is similar to pOutDev's current mapmode,
        // it's _still_ undesirable to have pixel offset unequal zero,
        // because one would still get round-off errors (the
        // round-trip error for LogicToPixel( PixelToLogic() ) was the
        // reason for having pixel offset in the first place).
        const Size& rOldOffset( pOut->GetPixelOffset() );
        const Size  aEmptySize;
        pOut->SetPixelOffset( aEmptySize );
		aDrawMap.SetOrigin( pOut->PixelToLogic( pOut->LogicToPixel( rPos ), aDrawMap ) );
        pOut->SetPixelOffset( rOldOffset );

		pOut->Push();

		if ( pMtf && pMtf->IsRecord() && ( pOut->GetOutDevType() != OUTDEV_PRINTER ) )
			pOut->SetRelativeMapMode( aDrawMap );
		else
			pOut->SetMapMode( aDrawMap );

        // #i23407# Set backwards-compatible text language and layout mode
        // This is necessary, since old metafiles don't even know of these
		// recent add-ons. Newer metafiles must of course explicitely set
        // those states.
        pOut->SetLayoutMode( 0 );
        pOut->SetDigitLanguage( 0 );

		Play( pOut, nPos );

		pOut->Pop();
	}
}

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

void GDIMetaFile::Pause( sal_Bool _bPause )
{
	if( bRecord )
	{
		if( _bPause )
		{
			if( !bPause )
				Linker( pOutDev, sal_False );
		}
		else
		{
			if( bPause )
				Linker( pOutDev, sal_True );
		}

		bPause = _bPause;
	}
}

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

void GDIMetaFile::Stop()
{
	if( bRecord )
	{
		bRecord = sal_False;

		if( !bPause )
			Linker( pOutDev, sal_False );
		else
			bPause = sal_False;
	}
}

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

void GDIMetaFile::WindStart()
{
	if( !bRecord )
		First();
}

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

void GDIMetaFile::WindEnd()
{
	if( !bRecord )
		Last();
}

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

void GDIMetaFile::Wind( sal_uLong nActionPos )
{
	if( !bRecord )
		Seek( nActionPos );
}

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

void GDIMetaFile::WindPrev()
{
	if( !bRecord )
		Prev();
}

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

void GDIMetaFile::WindNext()
{
	if( !bRecord )
		Next();
}

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

void GDIMetaFile::AddAction( MetaAction* pAction )
{
	Insert( pAction, LIST_APPEND );

	if( pPrev )
	{
		pAction->Duplicate();
		pPrev->AddAction( pAction );
	}
}

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

void GDIMetaFile::AddAction( MetaAction* pAction, sal_uLong nPos )
{
	Insert( pAction, nPos );

	if( pPrev )
	{
		pAction->Duplicate();
		pPrev->AddAction( pAction, nPos );
	}
}

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

// @since #110496#
void GDIMetaFile::RemoveAction( sal_uLong nPos )
{
	Remove( nPos );

	if( pPrev )
		pPrev->RemoveAction( nPos );
}

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

MetaAction* GDIMetaFile::CopyAction( sal_uLong nPos ) const
{
	return ( (MetaAction*) GetObject( nPos ) )->Clone();
}

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

sal_uLong GDIMetaFile::GetActionPos( const String& rLabel )
{
	ImpLabel* pLabel = NULL;

	if( pLabelList )
		pLabel = pLabelList->ImplGetLabel( pLabelList->ImplGetLabelPos( rLabel ) );
	else
		pLabel = NULL;

	return( pLabel ? pLabel->nActionPos : METAFILE_LABEL_NOTFOUND );
}

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

sal_Bool GDIMetaFile::InsertLabel( const String& rLabel, sal_uLong nActionPos )
{
	sal_Bool bRet = sal_False;

	if( !pLabelList )
		pLabelList = new ImpLabelList;

	if( pLabelList->ImplGetLabelPos( rLabel ) == METAFILE_LABEL_NOTFOUND )
	{
		pLabelList->ImplInsert( new ImpLabel( rLabel, nActionPos ) );
		bRet = sal_True;
	}

	return bRet;
}

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

void GDIMetaFile::RemoveLabel( const String& rLabel )
{
	if( pLabelList )
	{
		const sal_uLong nLabelPos = pLabelList->ImplGetLabelPos( rLabel );

		if( nLabelPos != METAFILE_LABEL_NOTFOUND )
			delete pLabelList->ImplRemove( nLabelPos );
	}
}

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

void GDIMetaFile::RenameLabel( const String& rLabel, const String& rNewLabel )
{
	if( pLabelList )
	{
		const sal_uLong nLabelPos = pLabelList->ImplGetLabelPos( rLabel );

		if ( nLabelPos != METAFILE_LABEL_NOTFOUND )
			pLabelList->ImplGetLabel( nLabelPos )->aLabelName = rNewLabel;
	}
}

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

sal_uLong GDIMetaFile::GetLabelCount() const
{
	return( pLabelList ? pLabelList->ImplCount() : 0UL );
}

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

String GDIMetaFile::GetLabel( sal_uLong nLabel )
{
	String aString;

	if( pLabelList )
	{
		const ImpLabel* pLabel = pLabelList->ImplGetLabel( nLabel );

		if( pLabel )
			aString = pLabel->aLabelName;
	}

	return aString;
}

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

sal_Bool GDIMetaFile::SaveStatus()
{
	if ( bRecord )
	{
		if ( bPause )
			Linker( pOutDev, sal_True );

		AddAction( new MetaLineColorAction( pOutDev->GetLineColor(),
											pOutDev->IsLineColor() ) );
		AddAction( new MetaFillColorAction( pOutDev->GetFillColor(),
											pOutDev->IsFillColor() ) );
		AddAction( new MetaFontAction( pOutDev->GetFont() ) );
		AddAction( new MetaTextColorAction( pOutDev->GetTextColor() ) );
		AddAction( new MetaTextFillColorAction( pOutDev->GetTextFillColor(),
												pOutDev->IsTextFillColor() ) );
		AddAction( new MetaTextLineColorAction( pOutDev->GetTextLineColor(),
												pOutDev->IsTextLineColor() ) );
		AddAction( new MetaOverlineColorAction( pOutDev->GetOverlineColor(),
												pOutDev->IsOverlineColor() ) );
		AddAction( new MetaTextAlignAction( pOutDev->GetTextAlign() ) );
		AddAction( new MetaRasterOpAction( pOutDev->GetRasterOp() ) );
		AddAction( new MetaMapModeAction( pOutDev->GetMapMode() ) );
		AddAction( new MetaClipRegionAction( pOutDev->GetClipRegion(),
											 pOutDev->IsClipRegion() ) );

		if ( bPause )
			Linker( pOutDev, sal_False );

		return sal_True;
	}
	else
		return sal_False;
}

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

sal_Bool GDIMetaFile::Mirror( sal_uLong nMirrorFlags )
{
	const Size	aOldPrefSize( GetPrefSize() );
	long	    nMoveX, nMoveY;
	double	    fScaleX, fScaleY;
    sal_Bool        bRet;

	if( nMirrorFlags & MTF_MIRROR_HORZ )
		nMoveX = VOS_ABS( aOldPrefSize.Width() ) - 1, fScaleX = -1.0;
	else
		nMoveX = 0, fScaleX = 1.0;

	if( nMirrorFlags & MTF_MIRROR_VERT )
		nMoveY = VOS_ABS( aOldPrefSize.Height() ) - 1, fScaleY = -1.0;
	else
		nMoveY = 0, fScaleY = 1.0;

    if( ( fScaleX != 1.0 ) || ( fScaleY != 1.0 ) )
    {
	    Scale( fScaleX, fScaleY );
	    Move( nMoveX, nMoveY );
	    SetPrefSize( aOldPrefSize );
        bRet = sal_True;
    }
    else
        bRet = sal_False;

    return bRet;
}

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

void GDIMetaFile::Move( long nX, long nY )
{
    const Size      aBaseOffset( nX, nY );
    Size            aOffset( aBaseOffset );
    VirtualDevice   aMapVDev;

    aMapVDev.EnableOutput( sal_False );
    aMapVDev.SetMapMode( GetPrefMapMode() );

	for( MetaAction* pAct = (MetaAction*) First(); pAct; pAct = (MetaAction*) Next() )
	{
		const long  nType = pAct->GetType();
        MetaAction* pModAct;

		if( pAct->GetRefCount() > 1 )
		{
			Replace( pModAct = pAct->Clone(), GetCurPos() );
			pAct->Delete();
		}
		else
			pModAct = pAct;

        if( ( META_MAPMODE_ACTION == nType ) ||
            ( META_PUSH_ACTION == nType ) ||
            ( META_POP_ACTION == nType ) )
        {
            pModAct->Execute( &aMapVDev );
            aOffset = aMapVDev.LogicToLogic( aBaseOffset, GetPrefMapMode(), aMapVDev.GetMapMode() );
        }

		pModAct->Move( aOffset.Width(), aOffset.Height() );
	}
}

void GDIMetaFile::Move( long nX, long nY, long nDPIX, long nDPIY )
{
    const Size      aBaseOffset( nX, nY );
    Size            aOffset( aBaseOffset );
    VirtualDevice   aMapVDev;

    aMapVDev.EnableOutput( sal_False );
    aMapVDev.SetReferenceDevice( nDPIX, nDPIY );
    aMapVDev.SetMapMode( GetPrefMapMode() );

	for( MetaAction* pAct = (MetaAction*) First(); pAct; pAct = (MetaAction*) Next() )
	{
		const long  nType = pAct->GetType();
        MetaAction* pModAct;

		if( pAct->GetRefCount() > 1 )
		{
			Replace( pModAct = pAct->Clone(), GetCurPos() );
			pAct->Delete();
		}
		else
			pModAct = pAct;

        if( ( META_MAPMODE_ACTION == nType ) ||
            ( META_PUSH_ACTION == nType ) ||
            ( META_POP_ACTION == nType ) )
        {
            pModAct->Execute( &aMapVDev );
            if( aMapVDev.GetMapMode().GetMapUnit() == MAP_PIXEL )
            {
                aOffset = aMapVDev.LogicToPixel( aBaseOffset, GetPrefMapMode() );
                MapMode aMap( aMapVDev.GetMapMode() );
                aOffset.Width() = static_cast<long>(aOffset.Width() * (double)aMap.GetScaleX());
                aOffset.Height() = static_cast<long>(aOffset.Height() * (double)aMap.GetScaleY());
            }
            else
                aOffset = aMapVDev.LogicToLogic( aBaseOffset, GetPrefMapMode(), aMapVDev.GetMapMode() );
        }

		pModAct->Move( aOffset.Width(), aOffset.Height() );
	}
}

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

void GDIMetaFile::Scale( double fScaleX, double fScaleY )
{
	for( MetaAction* pAct = (MetaAction*) First(); pAct; pAct = (MetaAction*) Next() )
	{
		MetaAction* pModAct;

		if( pAct->GetRefCount() > 1 )
		{
            Replace( pModAct = pAct->Clone(), GetCurPos() );
			pAct->Delete();
		}
		else
			pModAct = pAct;

		pModAct->Scale( fScaleX, fScaleY );
	}

	aPrefSize.Width() = FRound( aPrefSize.Width() * fScaleX );
	aPrefSize.Height() = FRound( aPrefSize.Height() * fScaleY );
}

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

void GDIMetaFile::Scale( const Fraction& rScaleX, const Fraction& rScaleY )
{
	Scale( (double) rScaleX, (double) rScaleY );
}

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

void GDIMetaFile::Clip( const Rectangle& i_rClipRect )
{
    Rectangle aCurRect( i_rClipRect );
    VirtualDevice   aMapVDev;

    aMapVDev.EnableOutput( sal_False );
    aMapVDev.SetMapMode( GetPrefMapMode() );

    for( MetaAction* pAct = (MetaAction*) First(); pAct; pAct = (MetaAction*) Next() )
    {
        const long  nType = pAct->GetType();

        if( ( META_MAPMODE_ACTION == nType ) ||
            ( META_PUSH_ACTION == nType ) ||
            ( META_POP_ACTION == nType ) )
        {
            pAct->Execute( &aMapVDev );
            aCurRect = aMapVDev.LogicToLogic( i_rClipRect, GetPrefMapMode(), aMapVDev.GetMapMode() );
        }
        else if( nType == META_CLIPREGION_ACTION )
        {
            MetaClipRegionAction* pOldAct = (MetaClipRegionAction*)pAct;
            Region aNewReg( aCurRect );
            if( pOldAct->IsClipping() )
                aNewReg.Intersect( pOldAct->GetRegion() );
            MetaClipRegionAction* pNewAct = new MetaClipRegionAction( aNewReg, sal_True );
            Replace( pNewAct, GetCurPos() );
            pOldAct->Delete();
        }
    }
}

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

Point GDIMetaFile::ImplGetRotatedPoint( const Point& rPt, const Point& rRotatePt,
                                        const Size& rOffset, double fSin, double fCos )
{
    const long nX = rPt.X() - rRotatePt.X();
    const long nY = rPt.Y() - rRotatePt.Y();

    return Point( FRound( fCos * nX + fSin * nY ) + rRotatePt.X() + rOffset.Width(),
                  -FRound( fSin * nX - fCos * nY ) + rRotatePt.Y() + rOffset.Height() );
}

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

Polygon GDIMetaFile::ImplGetRotatedPolygon( const Polygon& rPoly, const Point& rRotatePt,
                                            const Size& rOffset, double fSin, double fCos )
{
    Polygon aRet( rPoly );

    aRet.Rotate( rRotatePt, fSin, fCos );
    aRet.Move( rOffset.Width(), rOffset.Height() );

    return aRet;
}

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

PolyPolygon GDIMetaFile::ImplGetRotatedPolyPolygon( const PolyPolygon& rPolyPoly, const Point& rRotatePt,
                                                    const Size& rOffset, double fSin, double fCos )
{
    PolyPolygon aRet( rPolyPoly );

    aRet.Rotate( rRotatePt, fSin, fCos );
    aRet.Move( rOffset.Width(), rOffset.Height() );

    return aRet;
}

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

void GDIMetaFile::ImplAddGradientEx( GDIMetaFile& 		  rMtf,
                                     const OutputDevice&  rMapDev,
                                     const PolyPolygon&   rPolyPoly,
                                     const Gradient&	  rGrad 	)
{
    // #105055# Generate comment, GradientEx and Gradient actions
    // (within DrawGradient)
    VirtualDevice aVDev( rMapDev, 0 );
    aVDev.EnableOutput( sal_False );
    GDIMetaFile	aGradMtf;

    aGradMtf.Record( &aVDev );
    aVDev.DrawGradient( rPolyPoly, rGrad );
    aGradMtf.Stop();

    int i, nAct( aGradMtf.GetActionCount() );
    for( i=0; i<nAct; ++i )
    {
        MetaAction* pMetaAct = aGradMtf.GetAction(i);
        pMetaAct->Duplicate();
        rMtf.AddAction( pMetaAct );
    }
}

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

void GDIMetaFile::Rotate( long nAngle10 )
{
	nAngle10 %= 3600L;
	nAngle10 = ( nAngle10 < 0L ) ? ( 3599L + nAngle10 ) : nAngle10;

    if( nAngle10 )
    {
	    GDIMetaFile     aMtf;
        VirtualDevice   aMapVDev;
	    const double    fAngle = F_PI1800 * nAngle10;
        const double    fSin = sin( fAngle );
        const double    fCos = cos( fAngle );
		Rectangle		aRect=Rectangle( Point(), GetPrefSize() );
        Polygon         aPoly( aRect );

        aPoly.Rotate( Point(), fSin, fCos );

        aMapVDev.EnableOutput( sal_False );
        aMapVDev.SetMapMode( GetPrefMapMode() );

        const Rectangle aNewBound( aPoly.GetBoundRect() );

        const Point aOrigin( GetPrefMapMode().GetOrigin().X(), GetPrefMapMode().GetOrigin().Y() );
        const Size  aOffset( -aNewBound.Left(), -aNewBound.Top() );

        Point     aRotAnchor( aOrigin );
        Size      aRotOffset( aOffset );

	    for( MetaAction* pAction = (MetaAction*) First(); pAction; pAction = (MetaAction*) Next() )
	    {
		    const sal_uInt16 nActionType = pAction->GetType();

		    switch( nActionType )
		    {
			    case( META_PIXEL_ACTION ):
			    {
				    MetaPixelAction* pAct = (MetaPixelAction*) pAction;
				    aMtf.AddAction( new MetaPixelAction( ImplGetRotatedPoint( pAct->GetPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                              pAct->GetColor() ) );
			    }
			    break;

			    case( META_POINT_ACTION ):
			    {
				    MetaPointAction* pAct = (MetaPointAction*) pAction;
				    aMtf.AddAction( new MetaPointAction( ImplGetRotatedPoint( pAct->GetPoint(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
			    }
			    break;

                case( META_LINE_ACTION ):
                {
				    MetaLineAction* pAct = (MetaLineAction*) pAction;
                    aMtf.AddAction( new MetaLineAction( ImplGetRotatedPoint( pAct->GetStartPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                        ImplGetRotatedPoint( pAct->GetEndPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                        pAct->GetLineInfo() ) );
                }
                break;

                case( META_RECT_ACTION ):
                {
				    MetaRectAction* pAct = (MetaRectAction*) pAction;
                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( pAct->GetRect(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_ROUNDRECT_ACTION ):
                {
				    MetaRoundRectAction*    pAct = (MetaRoundRectAction*) pAction;
                    const Polygon           aRoundRectPoly( pAct->GetRect(), pAct->GetHorzRound(), pAct->GetVertRound() );

                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( aRoundRectPoly, aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_ELLIPSE_ACTION ):
                {
				    MetaEllipseAction*      pAct = (MetaEllipseAction*) pAction;
                    const Polygon           aEllipsePoly( pAct->GetRect().Center(), pAct->GetRect().GetWidth() >> 1, pAct->GetRect().GetHeight() >> 1 );

                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( aEllipsePoly, aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_ARC_ACTION ):
                {
				    MetaArcAction*  pAct = (MetaArcAction*) pAction;
                    const Polygon   aArcPoly( pAct->GetRect(), pAct->GetStartPoint(), pAct->GetEndPoint(), POLY_ARC );

                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( aArcPoly, aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_PIE_ACTION ):
                {
				    MetaPieAction*  pAct = (MetaPieAction*) pAction;
                    const Polygon   aPiePoly( pAct->GetRect(), pAct->GetStartPoint(), pAct->GetEndPoint(), POLY_PIE );

                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( aPiePoly, aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_CHORD_ACTION	):
                {
				    MetaChordAction*    pAct = (MetaChordAction*) pAction;
                    const Polygon       aChordPoly( pAct->GetRect(), pAct->GetStartPoint(), pAct->GetEndPoint(), POLY_CHORD );

                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( aChordPoly, aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_POLYLINE_ACTION ):
                {
				    MetaPolyLineAction* pAct = (MetaPolyLineAction*) pAction;
                    aMtf.AddAction( new MetaPolyLineAction( ImplGetRotatedPolygon( pAct->GetPolygon(), aRotAnchor, aRotOffset, fSin, fCos ), pAct->GetLineInfo() ) );
                }
                break;

                case( META_POLYGON_ACTION ):
                {
				    MetaPolygonAction* pAct = (MetaPolygonAction*) pAction;
                    aMtf.AddAction( new MetaPolygonAction( ImplGetRotatedPolygon( pAct->GetPolygon(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_POLYPOLYGON_ACTION ):
                {
				    MetaPolyPolygonAction* pAct = (MetaPolyPolygonAction*) pAction;
                    aMtf.AddAction( new MetaPolyPolygonAction( ImplGetRotatedPolyPolygon( pAct->GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_TEXT_ACTION ):
                {
				    MetaTextAction* pAct = (MetaTextAction*) pAction;
                    aMtf.AddAction( new MetaTextAction( ImplGetRotatedPoint( pAct->GetPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                             pAct->GetText(), pAct->GetIndex(), pAct->GetLen() ) );
                }
                break;

                case( META_TEXTARRAY_ACTION	):
                {
				    MetaTextArrayAction* pAct = (MetaTextArrayAction*) pAction;
                    aMtf.AddAction( new MetaTextArrayAction( ImplGetRotatedPoint( pAct->GetPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                                  pAct->GetText(), pAct->GetDXArray(), pAct->GetIndex(), pAct->GetLen() ) );
                }
                break;

                case( META_STRETCHTEXT_ACTION ):
                {
				    MetaStretchTextAction* pAct = (MetaStretchTextAction*) pAction;
                    aMtf.AddAction( new MetaStretchTextAction( ImplGetRotatedPoint( pAct->GetPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                                    pAct->GetWidth(), pAct->GetText(), pAct->GetIndex(), pAct->GetLen() ) );
                }
                break;

                case( META_TEXTLINE_ACTION ):
                {
				    MetaTextLineAction* pAct = (MetaTextLineAction*) pAction;
                    aMtf.AddAction( new MetaTextLineAction( ImplGetRotatedPoint( pAct->GetStartPoint(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                                 pAct->GetWidth(), pAct->GetStrikeout(), pAct->GetUnderline(), pAct->GetOverline() ) );
                }
                break;

			    case( META_BMPSCALE_ACTION ):
			    {
				    MetaBmpScaleAction* pAct = (MetaBmpScaleAction*) pAction;
                    Polygon             aBmpPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetPoint(), pAct->GetSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle           aBmpRect( aBmpPoly.GetBoundRect() );
                    BitmapEx            aBmpEx( pAct->GetBitmap() );

                    aBmpEx.Rotate( nAngle10, Color( COL_TRANSPARENT ) );
                    aMtf.AddAction( new MetaBmpExScaleAction( aBmpRect.TopLeft(), aBmpRect.GetSize(),
                                                              aBmpEx ) );
			    }
			    break;

			    case( META_BMPSCALEPART_ACTION ):
			    {
				    MetaBmpScalePartAction* pAct = (MetaBmpScalePartAction*) pAction;
                    Polygon                 aBmpPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetDestPoint(), pAct->GetDestSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle               aBmpRect( aBmpPoly.GetBoundRect() );
                    BitmapEx                aBmpEx( pAct->GetBitmap() );

                    aBmpEx.Crop( Rectangle( pAct->GetSrcPoint(), pAct->GetSrcSize() ) );
                    aBmpEx.Rotate( nAngle10, Color( COL_TRANSPARENT ) );

                    aMtf.AddAction( new MetaBmpExScaleAction( aBmpRect.TopLeft(), aBmpRect.GetSize(), aBmpEx ) );
			    }
			    break;

			    case( META_BMPEXSCALE_ACTION ):
			    {
				    MetaBmpExScaleAction*   pAct = (MetaBmpExScaleAction*) pAction;
                    Polygon                 aBmpPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetPoint(), pAct->GetSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle               aBmpRect( aBmpPoly.GetBoundRect() );
                    BitmapEx                aBmpEx( pAct->GetBitmapEx() );

                    aBmpEx.Rotate( nAngle10, Color( COL_TRANSPARENT ) );

                    aMtf.AddAction( new MetaBmpExScaleAction( aBmpRect.TopLeft(), aBmpRect.GetSize(), aBmpEx ) );
			    }
			    break;

			    case( META_BMPEXSCALEPART_ACTION ):
			    {
				    MetaBmpExScalePartAction*   pAct = (MetaBmpExScalePartAction*) pAction;
                    Polygon                     aBmpPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetDestPoint(), pAct->GetDestSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle                   aBmpRect( aBmpPoly.GetBoundRect() );
                    BitmapEx                    aBmpEx( pAct->GetBitmapEx() );

                    aBmpEx.Crop( Rectangle( pAct->GetSrcPoint(), pAct->GetSrcSize() ) );
                    aBmpEx.Rotate( nAngle10, Color( COL_TRANSPARENT ) );

                    aMtf.AddAction( new MetaBmpExScaleAction( aBmpRect.TopLeft(), aBmpRect.GetSize(), aBmpEx ) );
			    }
			    break;

			    case( META_GRADIENT_ACTION ):
			    {
				    MetaGradientAction* pAct = (MetaGradientAction*) pAction;

                    ImplAddGradientEx( aMtf, aMapVDev,
                                       ImplGetRotatedPolygon( pAct->GetRect(), aRotAnchor, aRotOffset, fSin, fCos ),
                                       pAct->GetGradient() );
			    }
			    break;

			    case( META_GRADIENTEX_ACTION ):
			    {
				    MetaGradientExAction* pAct = (MetaGradientExAction*) pAction;
				    aMtf.AddAction( new MetaGradientExAction( ImplGetRotatedPolyPolygon( pAct->GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                              pAct->GetGradient() ) );
			    }
			    break;

                // #105055# Handle gradientex comment block correctly
                case( META_COMMENT_ACTION ):
                {
				    MetaCommentAction* pCommentAct = (MetaCommentAction*) pAction;
                    if( pCommentAct->GetComment().Equals( "XGRAD_SEQ_BEGIN" ) )
                    {
                        int nBeginComments( 1 );
                        pAction = (MetaAction*) Next();

                        // skip everything, except gradientex action
                        while( pAction )
                        {
                            const sal_uInt16 nType = pAction->GetType();

                            if( META_GRADIENTEX_ACTION == nType )
                            {
                                // Add rotated gradientex
                                MetaGradientExAction* pAct = (MetaGradientExAction*) pAction;
                                ImplAddGradientEx( aMtf, aMapVDev,
                                                   ImplGetRotatedPolyPolygon( pAct->GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                   pAct->GetGradient() );
                            }
                            else if( META_COMMENT_ACTION == nType)
                            {
                                MetaCommentAction* pAct = (MetaCommentAction*) pAction;
                                if( pAct->GetComment().Equals( "XGRAD_SEQ_END" ) )
                                {
                                    // handle nested blocks
                                    --nBeginComments;

                                    // gradientex comment block: end reached, done.
                                    if( !nBeginComments )
                                        break;
                                }
                                else if( pAct->GetComment().Equals( "XGRAD_SEQ_BEGIN" ) )
                                {
                                    // handle nested blocks
                                    ++nBeginComments;
                                }

                            }

                            pAction = (MetaAction*) Next();
                        }
                    }
					else
					{
						sal_Bool bPathStroke = pCommentAct->GetComment().Equals( "XPATHSTROKE_SEQ_BEGIN" );
						if ( bPathStroke || pCommentAct->GetComment().Equals( "XPATHFILL_SEQ_BEGIN" ) )
						{
							if ( pCommentAct->GetDataSize() )
							{
								SvMemoryStream aMemStm( (void*)pCommentAct->GetData(), pCommentAct->GetDataSize(), STREAM_READ );
								SvMemoryStream aDest;
								if ( bPathStroke )
								{
									SvtGraphicStroke aStroke;
									aMemStm >> aStroke;
									Polygon aPath;
									aStroke.getPath( aPath );
									aStroke.setPath( ImplGetRotatedPolygon( aPath, aRotAnchor, aRotOffset, fSin, fCos ) );
									aDest << aStroke;
									aMtf.AddAction( new MetaCommentAction( "XPATHSTROKE_SEQ_BEGIN", 0,
														static_cast<const sal_uInt8*>( aDest.GetData()), aDest.Tell() ) );
								}
								else
								{
									SvtGraphicFill aFill;
									aMemStm >> aFill;
									PolyPolygon aPath;
									aFill.getPath( aPath );
									aFill.setPath( ImplGetRotatedPolyPolygon( aPath, aRotAnchor, aRotOffset, fSin, fCos ) );
									aDest << aFill;
									aMtf.AddAction( new MetaCommentAction( "XPATHFILL_SEQ_BEGIN", 0,
														static_cast<const sal_uInt8*>( aDest.GetData()), aDest.Tell() ) );
								}
							}
						}
						else if ( pCommentAct->GetComment().Equals( "XPATHSTROKE_SEQ_END" )
							   || pCommentAct->GetComment().Equals( "XPATHFILL_SEQ_END" ) )
						{
						    pAction->Execute( &aMapVDev );
						    pAction->Duplicate();
						    aMtf.AddAction( pAction );
						}
					}
                }
                break;

			    case( META_HATCH_ACTION ):
			    {
				    MetaHatchAction*	pAct = (MetaHatchAction*) pAction;
				    Hatch				aHatch( pAct->GetHatch() );

                    aHatch.SetAngle( aHatch.GetAngle() + (sal_uInt16) nAngle10 );
				    aMtf.AddAction( new MetaHatchAction( ImplGetRotatedPolyPolygon( pAct->GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                                    aHatch ) );
			    }
			    break;

                case( META_TRANSPARENT_ACTION ):
                {
				    MetaTransparentAction* pAct = (MetaTransparentAction*) pAction;
				    aMtf.AddAction( new MetaTransparentAction( ImplGetRotatedPolyPolygon( pAct->GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ),
                                                                                          pAct->GetTransparence() ) );
                }
                break;

			    case( META_FLOATTRANSPARENT_ACTION ):
			    {
				    MetaFloatTransparentAction* pAct = (MetaFloatTransparentAction*) pAction;
				    GDIMetaFile					aTransMtf( pAct->GetGDIMetaFile() );
                    Polygon                     aMtfPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetPoint(), pAct->GetSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle                   aMtfRect( aMtfPoly.GetBoundRect() );

                    aTransMtf.Rotate( nAngle10 );
				    aMtf.AddAction( new MetaFloatTransparentAction( aTransMtf, aMtfRect.TopLeft(), aMtfRect.GetSize(),
                                                                    pAct->GetGradient() ) );
			    }
			    break;

			    case( META_EPS_ACTION ):
			    {
				    MetaEPSAction*	pAct = (MetaEPSAction*) pAction;
				    GDIMetaFile		aEPSMtf( pAct->GetSubstitute() );
                    Polygon         aEPSPoly( ImplGetRotatedPolygon( Rectangle( pAct->GetPoint(), pAct->GetSize() ), aRotAnchor, aRotOffset, fSin, fCos ) );
                    Rectangle       aEPSRect( aEPSPoly.GetBoundRect() );

                    aEPSMtf.Rotate( nAngle10 );
				    aMtf.AddAction( new MetaEPSAction( aEPSRect.TopLeft(), aEPSRect.GetSize(),
												       pAct->GetLink(), aEPSMtf ) );
			    }
			    break;

                case( META_CLIPREGION_ACTION ):
                {
				    MetaClipRegionAction* pAct = (MetaClipRegionAction*) pAction;

                    if( pAct->IsClipping() && pAct->GetRegion().HasPolyPolygon() )
                        aMtf.AddAction( new MetaClipRegionAction( Region( ImplGetRotatedPolyPolygon( pAct->GetRegion().GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ) ), sal_True ) );
                    else
                    {
				        pAction->Duplicate();
				        aMtf.AddAction( pAction );
                    }
                }
                break;

                case( META_ISECTRECTCLIPREGION_ACTION ):
                {
				    MetaISectRectClipRegionAction*	pAct = (MetaISectRectClipRegionAction*) pAction;
                    aMtf.AddAction( new MetaISectRegionClipRegionAction( ImplGetRotatedPolygon( pAct->GetRect(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
                }
                break;

                case( META_ISECTREGIONCLIPREGION_ACTION	):
                {
				    MetaISectRegionClipRegionAction*    pAct = (MetaISectRegionClipRegionAction*) pAction;
                    const Region&                       rRegion = pAct->GetRegion();

                    if( rRegion.HasPolyPolygon() )
                        aMtf.AddAction( new MetaISectRegionClipRegionAction( Region( ImplGetRotatedPolyPolygon( rRegion.GetPolyPolygon(), aRotAnchor, aRotOffset, fSin, fCos ) ) ) );
                    else
                    {
				        pAction->Duplicate();
				        aMtf.AddAction( pAction );
                    }
                }
                break;

                case( META_REFPOINT_ACTION ):
                {
				    MetaRefPointAction* pAct = (MetaRefPointAction*) pAction;
                    aMtf.AddAction( new MetaRefPointAction( ImplGetRotatedPoint( pAct->GetRefPoint(), aRotAnchor, aRotOffset, fSin, fCos ), pAct->IsSetting() ) );
                }
                break;

			    case( META_FONT_ACTION ):
			    {
				    MetaFontAction* pAct = (MetaFontAction*) pAction;
				    Font			aFont( pAct->GetFont() );

				    aFont.SetOrientation( aFont.GetOrientation() + (sal_uInt16) nAngle10 );
				    aMtf.AddAction( new MetaFontAction( aFont ) );
			    }
			    break;

			    case( META_BMP_ACTION ):
			    case( META_BMPEX_ACTION ):
			    case( META_MASK_ACTION ):
			    case( META_MASKSCALE_ACTION ):
			    case( META_MASKSCALEPART_ACTION ):
                case( META_WALLPAPER_ACTION ):
                case( META_TEXTRECT_ACTION ):
                case( META_MOVECLIPREGION_ACTION ):
			    {
				    DBG_ERROR( "GDIMetaFile::Rotate(): unsupported action" );
			    }
			    break;

			    default:
			    {
                    pAction->Execute( &aMapVDev );
				    pAction->Duplicate();
				    aMtf.AddAction( pAction );

                    // update rotation point and offset, if necessary
                    if( ( META_MAPMODE_ACTION == nActionType ) ||
                        ( META_PUSH_ACTION == nActionType ) ||
                        ( META_POP_ACTION == nActionType ) )
                    {
                        aRotAnchor = aMapVDev.LogicToLogic( aOrigin, aPrefMapMode, aMapVDev.GetMapMode() );
                        aRotOffset = aMapVDev.LogicToLogic( aOffset, aPrefMapMode, aMapVDev.GetMapMode() );
                    }
			    }
			    break;
		    }
	    }

	    aMtf.aPrefMapMode = aPrefMapMode;
	    aMtf.aPrefSize = aNewBound.GetSize();

	    *this = aMtf;
    }
}

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

static void ImplActionBounds( Rectangle& o_rOutBounds,
                              const Rectangle& i_rInBounds,
                              const std::vector<Rectangle>& i_rClipStack )
{
    Rectangle aBounds( i_rInBounds );
    if( ! i_rInBounds.IsEmpty() && ! i_rClipStack.empty() && ! i_rClipStack.back().IsEmpty() )
        aBounds.Intersection( i_rClipStack.back() );
    if( ! aBounds.IsEmpty() )
    {
        if( ! o_rOutBounds.IsEmpty() )
            o_rOutBounds.Union( aBounds );
        else
            o_rOutBounds = aBounds;
    }
}

Rectangle GDIMetaFile::GetBoundRect( OutputDevice& i_rReference )
{
    GDIMetaFile     aMtf;
    VirtualDevice   aMapVDev( i_rReference );

    aMapVDev.EnableOutput( sal_False );
    aMapVDev.SetMapMode( GetPrefMapMode() );

    std::vector<Rectangle> aClipStack( 1, Rectangle() );
    std::vector<sal_uInt16> aPushFlagStack;

    Rectangle aBound;

    for( MetaAction* pAction = (MetaAction*) First(); pAction; pAction = (MetaAction*) Next() )
    {
        const sal_uInt16 nActionType = pAction->GetType();

        switch( nActionType )
        {
        case( META_PIXEL_ACTION ):
        {
            MetaPixelAction* pAct = (MetaPixelAction*) pAction;
            ImplActionBounds( aBound,
                             Rectangle( aMapVDev.LogicToLogic( pAct->GetPoint(), aMapVDev.GetMapMode(), GetPrefMapMode() ),
                                       aMapVDev.PixelToLogic( Size( 1, 1 ), GetPrefMapMode() ) ),
                             aClipStack );
        }
        break;

        case( META_POINT_ACTION ):
        {
            MetaPointAction* pAct = (MetaPointAction*) pAction;
            ImplActionBounds( aBound,
                             Rectangle( aMapVDev.LogicToLogic( pAct->GetPoint(), aMapVDev.GetMapMode(), GetPrefMapMode() ),
                                       aMapVDev.PixelToLogic( Size( 1, 1 ), GetPrefMapMode() ) ),
                             aClipStack );
        }
        break;

        case( META_LINE_ACTION ):
        {
            MetaLineAction* pAct = (MetaLineAction*) pAction;
            Point aP1( pAct->GetStartPoint() ), aP2( pAct->GetEndPoint() );
            Rectangle aRect( aP1, aP2 );
            aRect.Justify();
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_RECT_ACTION ):
        {
            MetaRectAction* pAct = (MetaRectAction*) pAction;
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_ROUNDRECT_ACTION ):
        {
            MetaRoundRectAction*    pAct = (MetaRoundRectAction*) pAction;
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_ELLIPSE_ACTION ):
        {
            MetaEllipseAction*      pAct = (MetaEllipseAction*) pAction;
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_ARC_ACTION ):
        {
            MetaArcAction*  pAct = (MetaArcAction*) pAction;
            // FIXME: this is imprecise
            // e.g. for small arcs the whole rectangle is WAY too large
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_PIE_ACTION ):
        {
            MetaPieAction*  pAct = (MetaPieAction*) pAction;
            // FIXME: this is imprecise
            // e.g. for small arcs the whole rectangle is WAY too large
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_CHORD_ACTION	):
        {
            MetaChordAction*    pAct = (MetaChordAction*) pAction;
            // FIXME: this is imprecise
            // e.g. for small arcs the whole rectangle is WAY too large
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_POLYLINE_ACTION ):
        {
            MetaPolyLineAction* pAct = (MetaPolyLineAction*) pAction;
            Rectangle aRect( pAct->GetPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_POLYGON_ACTION ):
        {
            MetaPolygonAction* pAct = (MetaPolygonAction*) pAction;
            Rectangle aRect( pAct->GetPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_POLYPOLYGON_ACTION ):
        {
            MetaPolyPolygonAction* pAct = (MetaPolyPolygonAction*) pAction;
            Rectangle aRect( pAct->GetPolyPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_TEXT_ACTION ):
        {
            MetaTextAction* pAct = (MetaTextAction*) pAction;
            Rectangle aRect;
            // hdu said base = index
            aMapVDev.GetTextBoundRect( aRect, pAct->GetText(), pAct->GetIndex(), pAct->GetIndex(), pAct->GetLen() );
            Point aPt( pAct->GetPoint() );
            aRect.Move( aPt.X(), aPt.Y() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_TEXTARRAY_ACTION	):
        {
            MetaTextArrayAction* pAct = (MetaTextArrayAction*) pAction;
            Rectangle aRect;
            // hdu said base = index
            aMapVDev.GetTextBoundRect( aRect, pAct->GetText(), pAct->GetIndex(), pAct->GetIndex(), pAct->GetLen(),
                                       0, pAct->GetDXArray() );
            Point aPt( pAct->GetPoint() );
            aRect.Move( aPt.X(), aPt.Y() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_STRETCHTEXT_ACTION ):
        {
            MetaStretchTextAction* pAct = (MetaStretchTextAction*) pAction;
            Rectangle aRect;
            // hdu said base = index
            aMapVDev.GetTextBoundRect( aRect, pAct->GetText(), pAct->GetIndex(), pAct->GetIndex(), pAct->GetLen(),
                                       pAct->GetWidth(), NULL );
            Point aPt( pAct->GetPoint() );
            aRect.Move( aPt.X(), aPt.Y() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_TEXTLINE_ACTION ):
        {
            MetaTextLineAction* pAct = (MetaTextLineAction*) pAction;
            // measure a test string to get ascend and descent right
            static const sal_Unicode pStr[] = { 0xc4, 0x67, 0 };
            String aStr( pStr );

            Rectangle aRect;
            aMapVDev.GetTextBoundRect( aRect, aStr, 0, 0, aStr.Len(), 0, NULL );
            Point aPt( pAct->GetStartPoint() );
            aRect.Move( aPt.X(), aPt.Y() );
            aRect.Right() = aRect.Left() + pAct->GetWidth();
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_BMPSCALE_ACTION ):
        {
            MetaBmpScaleAction* pAct = (MetaBmpScaleAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), pAct->GetSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_BMPSCALEPART_ACTION ):
        {
            MetaBmpScalePartAction* pAct = (MetaBmpScalePartAction*) pAction;
            Rectangle aRect( pAct->GetDestPoint(), pAct->GetDestSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_BMPEXSCALE_ACTION ):
        {
            MetaBmpExScaleAction*   pAct = (MetaBmpExScaleAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), pAct->GetSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_BMPEXSCALEPART_ACTION ):
        {
            MetaBmpExScalePartAction*   pAct = (MetaBmpExScalePartAction*) pAction;
            Rectangle aRect( pAct->GetDestPoint(), pAct->GetDestSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_GRADIENT_ACTION ):
        {
            MetaGradientAction* pAct = (MetaGradientAction*) pAction;
            Rectangle aRect( pAct->GetRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_GRADIENTEX_ACTION ):
        {
            MetaGradientExAction* pAct = (MetaGradientExAction*) pAction;
            Rectangle aRect( pAct->GetPolyPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_COMMENT_ACTION ):
        {
            // nothing to do
        };
        break;

        case( META_HATCH_ACTION ):
        {
            MetaHatchAction*	pAct = (MetaHatchAction*) pAction;
            Rectangle aRect( pAct->GetPolyPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_TRANSPARENT_ACTION ):
        {
            MetaTransparentAction* pAct = (MetaTransparentAction*) pAction;
            Rectangle aRect( pAct->GetPolyPolygon().GetBoundRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_FLOATTRANSPARENT_ACTION ):
        {
            MetaFloatTransparentAction* pAct = (MetaFloatTransparentAction*) pAction;
            GDIMetaFile					aTransMtf( pAct->GetGDIMetaFile() );
            // get the bound rect of the contained metafile
            Rectangle aRect( aTransMtf.GetBoundRect( i_rReference ) );
            // scale the rect now on the assumption that the correct top left of the metafile
            // (not its bounds !) is (0,0)
            Size aPSize( aTransMtf.GetPrefSize() );
            aPSize = aMapVDev.LogicToLogic( aPSize, aTransMtf.GetPrefMapMode(), aMapVDev.GetMapMode() );
            Size aActSize( pAct->GetSize() );
            double fX = double(aActSize.Width())/double(aPSize.Width());
            double fY = double(aActSize.Height())/double(aPSize.Height());
            aRect.Left()   = long(double(aRect.Left())*fX);
            aRect.Right()  = long(double(aRect.Right())*fX);
            aRect.Top()    = long(double(aRect.Top())*fY);
            aRect.Bottom() = long(double(aRect.Bottom())*fY);

            // transform the rect to current VDev state
            aRect = aMapVDev.LogicToLogic( aRect, aTransMtf.GetPrefMapMode(), aMapVDev.GetMapMode() );

            ImplActionBounds( aBound, aRect, aClipStack );
        }
        break;

        case( META_EPS_ACTION ):
        {
            MetaEPSAction*	pAct = (MetaEPSAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), pAct->GetSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_CLIPREGION_ACTION ):
        {
            MetaClipRegionAction* pAct = (MetaClipRegionAction*) pAction;
            if( pAct->IsClipping() )
                aClipStack.back() = aMapVDev.LogicToLogic( pAct->GetRegion().GetBoundRect(), aMapVDev.GetMapMode(), GetPrefMapMode() );
            else
                aClipStack.back() = Rectangle();
        }
        break;

        case( META_ISECTRECTCLIPREGION_ACTION ):
        {
            MetaISectRectClipRegionAction* pAct = (MetaISectRectClipRegionAction*) pAction;
            Rectangle aRect( aMapVDev.LogicToLogic( pAct->GetRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ) );
            if( aClipStack.back().IsEmpty() )
                aClipStack.back() = aRect;
            else
                aClipStack.back().Intersection( aRect );
        }
        break;

        case( META_ISECTREGIONCLIPREGION_ACTION	):
        {
            MetaISectRegionClipRegionAction*    pAct = (MetaISectRegionClipRegionAction*) pAction;
            Rectangle aRect( aMapVDev.LogicToLogic( pAct->GetRegion().GetBoundRect(), aMapVDev.GetMapMode(), GetPrefMapMode() ) );
            if( aClipStack.back().IsEmpty() )
                aClipStack.back() = aRect;
            else
                aClipStack.back().Intersection( aRect );
        }
        break;

        case( META_BMP_ACTION ):
        {
            MetaBmpAction* pAct = (MetaBmpAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), aMapVDev.PixelToLogic( pAct->GetBitmap().GetSizePixel() ) );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_BMPEX_ACTION ):
        {
            MetaBmpExAction* pAct = (MetaBmpExAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), aMapVDev.PixelToLogic( pAct->GetBitmapEx().GetSizePixel() ) );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_MASK_ACTION ):
        {
            MetaMaskAction* pAct = (MetaMaskAction*) pAction;
            Rectangle aRect( pAct->GetPoint(), aMapVDev.PixelToLogic( pAct->GetBitmap().GetSizePixel() ) );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_MASKSCALE_ACTION ):
        {
            MetaMaskScalePartAction* pAct = (MetaMaskScalePartAction*) pAction;
            Rectangle aRect( pAct->GetDestPoint(), pAct->GetDestSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_MASKSCALEPART_ACTION ):
        {
            MetaMaskScalePartAction* pAct = (MetaMaskScalePartAction*) pAction;
            Rectangle aRect( pAct->GetDestPoint(), pAct->GetDestSize() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_WALLPAPER_ACTION ):
        {
            MetaWallpaperAction* pAct = (MetaWallpaperAction*) pAction;
            Rectangle aRect( pAct->GetRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_TEXTRECT_ACTION ):
        {
            MetaTextRectAction* pAct = (MetaTextRectAction*) pAction;
            Rectangle aRect( pAct->GetRect() );
            ImplActionBounds( aBound, aMapVDev.LogicToLogic( aRect, aMapVDev.GetMapMode(), GetPrefMapMode() ), aClipStack );
        }
        break;

        case( META_MOVECLIPREGION_ACTION ):
        {
            MetaMoveClipRegionAction* pAct = (MetaMoveClipRegionAction*) pAction;
            if( ! aClipStack.back().IsEmpty() )
            {
                Size aDelta( pAct->GetHorzMove(), pAct->GetVertMove() );
                aDelta = aMapVDev.LogicToLogic( aDelta, aMapVDev.GetMapMode(), GetPrefMapMode() );
                aClipStack.back().Move( aDelta.Width(), aDelta.Width() );
            }
        }
        break;

        default:
            {
                pAction->Execute( &aMapVDev );

                if( nActionType == META_PUSH_ACTION )
                {
                    MetaPushAction* pAct = (MetaPushAction*) pAction;
                    aPushFlagStack.push_back( pAct->GetFlags() );
                    if( (aPushFlagStack.back() & PUSH_CLIPREGION) != 0 )
                    {
                        Rectangle aRect( aClipStack.back() );
                        aClipStack.push_back( aRect );
                    }
                }
                else if( nActionType == META_POP_ACTION )
                {
                    // sanity check
                    if( ! aPushFlagStack.empty() )
                    {
                        if( (aPushFlagStack.back() & PUSH_CLIPREGION) != 0 )
                        {
                            if( aClipStack.size() > 1 )
                                aClipStack.pop_back();
                        }
                        aPushFlagStack.pop_back();
                    }
                }
            }
            break;
        }
    }
    return aBound;
}

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

Color GDIMetaFile::ImplColAdjustFnc( const Color& rColor, const void* pColParam )
{
	return Color( rColor.GetTransparency(),
				  ( (const ImplColAdjustParam*) pColParam )->pMapR[ rColor.GetRed() ],
				  ( (const ImplColAdjustParam*) pColParam )->pMapG[ rColor.GetGreen() ],
				  ( (const ImplColAdjustParam*) pColParam )->pMapB[ rColor.GetBlue() ] );

}

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

BitmapEx GDIMetaFile::ImplBmpAdjustFnc( const BitmapEx& rBmpEx, const void* pBmpParam )
{
	const ImplBmpAdjustParam*	p = (const ImplBmpAdjustParam*) pBmpParam;
	BitmapEx					aRet( rBmpEx );

	aRet.Adjust( p->nLuminancePercent, p->nContrastPercent,
				 p->nChannelRPercent, p->nChannelGPercent, p->nChannelBPercent,
				 p->fGamma, p->bInvert );

	return aRet;
}

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

Color GDIMetaFile::ImplColConvertFnc( const Color& rColor, const void* pColParam )
{
	sal_uInt8 cLum = rColor.GetLuminance();

	if( MTF_CONVERSION_1BIT_THRESHOLD == ( (const ImplColConvertParam*) pColParam )->eConversion )
		cLum = ( cLum < 128 ) ? 0 : 255;

	return Color( rColor.GetTransparency(), cLum, cLum, cLum );
}

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

BitmapEx GDIMetaFile::ImplBmpConvertFnc( const BitmapEx& rBmpEx, const void* pBmpParam )
{
	BitmapEx aRet( rBmpEx );

	aRet.Convert( ( (const ImplBmpConvertParam*) pBmpParam )->eConversion );

	return aRet;
}

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

Color GDIMetaFile::ImplColMonoFnc( const Color&, const void* pColParam )
{
	return( ( (const ImplColMonoParam*) pColParam )->aColor );
}

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

BitmapEx GDIMetaFile::ImplBmpMonoFnc( const BitmapEx& rBmpEx, const void* pBmpParam )
{
	BitmapPalette aPal( 3 );

	aPal[ 0 ] = Color( COL_BLACK );
	aPal[ 1 ] = Color( COL_WHITE );
	aPal[ 2 ] = ( (const ImplBmpMonoParam*) pBmpParam )->aColor;

	Bitmap aBmp( rBmpEx.GetSizePixel(), 4, &aPal );
	aBmp.Erase( ( (const ImplBmpMonoParam*) pBmpParam )->aColor );

	if( rBmpEx.IsAlpha() )
		return BitmapEx( aBmp, rBmpEx.GetAlpha() );
	else if( rBmpEx.IsTransparent() )
		return BitmapEx( aBmp, rBmpEx.GetMask() );
	else
		return aBmp;
}

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

Color GDIMetaFile::ImplColReplaceFnc( const Color& rColor, const void* pColParam )
{
	const sal_uLong nR = rColor.GetRed(), nG = rColor.GetGreen(), nB = rColor.GetBlue();

	for( sal_uLong i = 0; i < ( (const ImplColReplaceParam*) pColParam )->nCount; i++ )
	{
		if( ( ( (const ImplColReplaceParam*) pColParam )->pMinR[ i ] <= nR ) &&
			( ( (const ImplColReplaceParam*) pColParam )->pMaxR[ i ] >= nR ) &&
			( ( (const ImplColReplaceParam*) pColParam )->pMinG[ i ] <= nG ) &&
			( ( (const ImplColReplaceParam*) pColParam )->pMaxG[ i ] >= nG ) &&
			( ( (const ImplColReplaceParam*) pColParam )->pMinB[ i ] <= nB ) &&
			( ( (const ImplColReplaceParam*) pColParam )->pMaxB[ i ] >= nB ) )
		{
			return( ( (const ImplColReplaceParam*) pColParam )->pDstCols[ i ] );
		}
	}

	return rColor;
}

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

BitmapEx GDIMetaFile::ImplBmpReplaceFnc( const BitmapEx& rBmpEx, const void* pBmpParam )
{
	const ImplBmpReplaceParam*	p = (const ImplBmpReplaceParam*) pBmpParam;
	BitmapEx					aRet( rBmpEx );

	aRet.Replace( p->pSrcCols, p->pDstCols, p->nCount, p->pTols );

	return aRet;
}

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

void GDIMetaFile::ImplExchangeColors( ColorExchangeFnc pFncCol, const void* pColParam,
									  BmpExchangeFnc pFncBmp, const void* pBmpParam )
{
	GDIMetaFile aMtf;

	aMtf.aPrefSize = aPrefSize;
	aMtf.aPrefMapMode = aPrefMapMode;

	for( MetaAction* pAction = (MetaAction*) First(); pAction; pAction = (MetaAction*) Next() )
	{
		const sal_uInt16 nType = pAction->GetType();

		switch( nType )
		{
			case( META_PIXEL_ACTION ):
			{
				MetaPixelAction* pAct = (MetaPixelAction*) pAction;
				aMtf.Insert( new MetaPixelAction( pAct->GetPoint(), pFncCol( pAct->GetColor(), pColParam ) ), LIST_APPEND );
			}
			break;

			case( META_LINECOLOR_ACTION ):
			{
				MetaLineColorAction* pAct = (MetaLineColorAction*) pAction;

				if( !pAct->IsSetting() )
					pAct->Duplicate();
				else
					pAct = new MetaLineColorAction( pFncCol( pAct->GetColor(), pColParam ), sal_True );

				aMtf.Insert( pAct, LIST_APPEND );
			}
			break;

			case( META_FILLCOLOR_ACTION ):
			{
				MetaFillColorAction* pAct = (MetaFillColorAction*) pAction;

				if( !pAct->IsSetting() )
					pAct->Duplicate();
				else
					pAct = new MetaFillColorAction( pFncCol( pAct->GetColor(), pColParam ), sal_True );

				aMtf.Insert( pAct, LIST_APPEND );
			}
			break;

			case( META_TEXTCOLOR_ACTION ):
			{
				MetaTextColorAction* pAct = (MetaTextColorAction*) pAction;
				aMtf.Insert( new MetaTextColorAction( pFncCol( pAct->GetColor(), pColParam ) ), LIST_APPEND );
			}
			break;

			case( META_TEXTFILLCOLOR_ACTION ):
			{
				MetaTextFillColorAction* pAct = (MetaTextFillColorAction*) pAction;

				if( !pAct->IsSetting() )
					pAct->Duplicate();
				else
					pAct = new MetaTextFillColorAction( pFncCol( pAct->GetColor(), pColParam ), sal_True );

				aMtf.Insert( pAct, LIST_APPEND );
			}
			break;

			case( META_TEXTLINECOLOR_ACTION ):
			{
				MetaTextLineColorAction* pAct = (MetaTextLineColorAction*) pAction;

				if( !pAct->IsSetting() )
					pAct->Duplicate();
				else
					pAct = new MetaTextLineColorAction( pFncCol( pAct->GetColor(), pColParam ), sal_True );

				aMtf.Insert( pAct, LIST_APPEND );
			}
			break;

			case( META_OVERLINECOLOR_ACTION ):
			{
				MetaOverlineColorAction* pAct = (MetaOverlineColorAction*) pAction;

				if( !pAct->IsSetting() )
					pAct->Duplicate();
				else
					pAct = new MetaOverlineColorAction( pFncCol( pAct->GetColor(), pColParam ), sal_True );

				aMtf.Insert( pAct, LIST_APPEND );
			}
			break;

			case( META_FONT_ACTION ):
			{
				MetaFontAction* pAct = (MetaFontAction*) pAction;
				Font			aFont( pAct->GetFont() );

				aFont.SetColor( pFncCol( aFont.GetColor(), pColParam ) );
				aFont.SetFillColor( pFncCol( aFont.GetFillColor(), pColParam ) );
				aMtf.Insert( new MetaFontAction( aFont ), LIST_APPEND );
			}
			break;

			case( META_WALLPAPER_ACTION ):
			{
				MetaWallpaperAction*	pAct = (MetaWallpaperAction*) pAction;
				Wallpaper				aWall( pAct->GetWallpaper() );
				const Rectangle&		rRect = pAct->GetRect();

				aWall.SetColor( pFncCol( aWall.GetColor(), pColParam ) );

				if( aWall.IsBitmap() )
					aWall.SetBitmap( pFncBmp( aWall.GetBitmap(), pBmpParam ) );

				if( aWall.IsGradient() )
				{
					Gradient aGradient( aWall.GetGradient() );

					aGradient.SetStartColor( pFncCol( aGradient.GetStartColor(), pColParam ) );
					aGradient.SetEndColor( pFncCol( aGradient.GetEndColor(), pColParam ) );
					aWall.SetGradient( aGradient );
				}

				aMtf.Insert( new MetaWallpaperAction( rRect, aWall ), LIST_APPEND );
			}
			break;

			case( META_BMP_ACTION ):
			case( META_BMPEX_ACTION ):
			case( META_MASK_ACTION ):
			{
				DBG_ERROR( "Don't use bitmap actions of this type in metafiles!" );
			}
			break;

			case( META_BMPSCALE_ACTION ):
			{
				MetaBmpScaleAction* pAct = (MetaBmpScaleAction*) pAction;
				aMtf.Insert( new MetaBmpScaleAction( pAct->GetPoint(), pAct->GetSize(),
													 pFncBmp( pAct->GetBitmap(), pBmpParam ).GetBitmap() ),
													 LIST_APPEND );
			}
			break;

			case( META_BMPSCALEPART_ACTION ):
			{
				MetaBmpScalePartAction* pAct = (MetaBmpScalePartAction*) pAction;
				aMtf.Insert( new MetaBmpScalePartAction( pAct->GetDestPoint(), pAct->GetDestSize(),
														 pAct->GetSrcPoint(), pAct->GetSrcSize(),
														 pFncBmp( pAct->GetBitmap(), pBmpParam ).GetBitmap() ),
														 LIST_APPEND );
			}
			break;

			case( META_BMPEXSCALE_ACTION ):
			{
				MetaBmpExScaleAction* pAct = (MetaBmpExScaleAction*) pAction;
				aMtf.Insert( new MetaBmpExScaleAction( pAct->GetPoint(), pAct->GetSize(),
													   pFncBmp( pAct->GetBitmapEx(), pBmpParam ) ),
													   LIST_APPEND );
			}
			break;

			case( META_BMPEXSCALEPART_ACTION ):
			{
				MetaBmpExScalePartAction* pAct = (MetaBmpExScalePartAction*) pAction;
				aMtf.Insert( new MetaBmpExScalePartAction( pAct->GetDestPoint(), pAct->GetDestSize(),
														   pAct->GetSrcPoint(), pAct->GetSrcSize(),
														   pFncBmp( pAct->GetBitmapEx(), pBmpParam ) ),
														   LIST_APPEND );
			}
			break;

			case( META_MASKSCALE_ACTION ):
			{
				MetaMaskScaleAction* pAct = (MetaMaskScaleAction*) pAction;
				aMtf.Insert( new MetaMaskScaleAction( pAct->GetPoint(), pAct->GetSize(),
													  pAct->GetBitmap(),
													  pFncCol( pAct->GetColor(), pColParam ) ),
													  LIST_APPEND );
			}
			break;

			case( META_MASKSCALEPART_ACTION ):
			{
				MetaMaskScalePartAction* pAct = (MetaMaskScalePartAction*) pAction;
				aMtf.Insert( new MetaMaskScalePartAction( pAct->GetDestPoint(), pAct->GetDestSize(),
														  pAct->GetSrcPoint(), pAct->GetSrcSize(),
														  pAct->GetBitmap(),
														  pFncCol( pAct->GetColor(), pColParam ) ),
														  LIST_APPEND );
			}
			break;

			case( META_GRADIENT_ACTION ):
			{
				MetaGradientAction* pAct = (MetaGradientAction*) pAction;
				Gradient			aGradient( pAct->GetGradient() );

				aGradient.SetStartColor( pFncCol( aGradient.GetStartColor(), pColParam ) );
				aGradient.SetEndColor( pFncCol( aGradient.GetEndColor(), pColParam ) );
				aMtf.Insert( new MetaGradientAction( pAct->GetRect(), aGradient ), LIST_APPEND );
			}
			break;

			case( META_GRADIENTEX_ACTION ):
			{
				MetaGradientExAction* pAct = (MetaGradientExAction*) pAction;
				Gradient			  aGradient( pAct->GetGradient() );

				aGradient.SetStartColor( pFncCol( aGradient.GetStartColor(), pColParam ) );
				aGradient.SetEndColor( pFncCol( aGradient.GetEndColor(), pColParam ) );
				aMtf.Insert( new MetaGradientExAction( pAct->GetPolyPolygon(), aGradient ), LIST_APPEND );
			}
			break;

			case( META_HATCH_ACTION ):
			{
				MetaHatchAction*	pAct = (MetaHatchAction*) pAction;
				Hatch				aHatch( pAct->GetHatch() );

				aHatch.SetColor( pFncCol( aHatch.GetColor(), pColParam ) );
				aMtf.Insert( new MetaHatchAction( pAct->GetPolyPolygon(), aHatch ), LIST_APPEND );
			}
			break;

			case( META_FLOATTRANSPARENT_ACTION ):
			{
				MetaFloatTransparentAction* pAct = (MetaFloatTransparentAction*) pAction;
				GDIMetaFile					aTransMtf( pAct->GetGDIMetaFile() );

				aTransMtf.ImplExchangeColors( pFncCol, pColParam, pFncBmp, pBmpParam );
				aMtf.Insert( new MetaFloatTransparentAction( aTransMtf,
															 pAct->GetPoint(), pAct->GetSize(),
															 pAct->GetGradient() ),
															 LIST_APPEND );
			}
			break;

			case( META_EPS_ACTION ):
			{
				MetaEPSAction*	pAct = (MetaEPSAction*) pAction;
				GDIMetaFile		aSubst( pAct->GetSubstitute() );

				aSubst.ImplExchangeColors( pFncCol, pColParam, pFncBmp, pBmpParam );
				aMtf.Insert( new MetaEPSAction( pAct->GetPoint(), pAct->GetSize(),
												pAct->GetLink(), aSubst ),
												LIST_APPEND );
			}
			break;

			default:
			{
				pAction->Duplicate();
				aMtf.Insert( pAction, LIST_APPEND );
			}
			break;
		}
	}

	*this = aMtf;
}

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

void GDIMetaFile::Adjust( short nLuminancePercent, short nContrastPercent,
						  short nChannelRPercent, short nChannelGPercent,
						  short nChannelBPercent, double fGamma, sal_Bool bInvert )
{
	// nothing to do? => return quickly
	if( nLuminancePercent || nContrastPercent ||
		nChannelRPercent || nChannelGPercent || nChannelBPercent ||
		( fGamma != 1.0 ) || bInvert )
	{
		double				fM, fROff, fGOff, fBOff, fOff;
		ImplColAdjustParam	aColParam;
		ImplBmpAdjustParam	aBmpParam;

		aColParam.pMapR = new sal_uInt8[ 256 ];
		aColParam.pMapG = new sal_uInt8[ 256 ];
		aColParam.pMapB = new sal_uInt8[ 256 ];

		// calculate slope
		if( nContrastPercent >= 0 )
			fM = 128.0 / ( 128.0 - 1.27 * MinMax( nContrastPercent, 0L, 100L ) );
		else
			fM = ( 128.0 + 1.27 * MinMax( nContrastPercent, -100L, 0L ) ) / 128.0;

		// total offset = luminance offset + contrast offset
		fOff = MinMax( nLuminancePercent, -100L, 100L ) * 2.55 + 128.0 - fM * 128.0;

		// channel offset = channel offset	+ total offset
		fROff = nChannelRPercent * 2.55 + fOff;
		fGOff = nChannelGPercent * 2.55 + fOff;
		fBOff = nChannelBPercent * 2.55 + fOff;

		// calculate gamma value
		fGamma = ( fGamma <= 0.0 || fGamma > 10.0 ) ? 1.0 : ( 1.0 / fGamma );
		const sal_Bool bGamma = ( fGamma != 1.0 );

		// create mapping table
		for( long nX = 0L; nX < 256L; nX++ )
		{
			aColParam.pMapR[ nX ] = (sal_uInt8) MinMax( FRound( nX * fM + fROff ), 0L, 255L );
			aColParam.pMapG[ nX ] = (sal_uInt8) MinMax( FRound( nX * fM + fGOff ), 0L, 255L );
			aColParam.pMapB[ nX ] = (sal_uInt8) MinMax( FRound( nX * fM + fBOff ), 0L, 255L );

			if( bGamma )
			{
				aColParam.pMapR[ nX ] = GAMMA( aColParam.pMapR[ nX ], fGamma );
				aColParam.pMapG[ nX ] = GAMMA( aColParam.pMapG[ nX ], fGamma );
				aColParam.pMapB[ nX ] = GAMMA( aColParam.pMapB[ nX ], fGamma );
			}

			if( bInvert )
			{
				aColParam.pMapR[ nX ] = ~aColParam.pMapR[ nX ];
				aColParam.pMapG[ nX ] = ~aColParam.pMapG[ nX ];
				aColParam.pMapB[ nX ] = ~aColParam.pMapB[ nX ];
			}
		}

		aBmpParam.nLuminancePercent = nLuminancePercent;
		aBmpParam.nContrastPercent = nContrastPercent;
		aBmpParam.nChannelRPercent = nChannelRPercent;
		aBmpParam.nChannelGPercent = nChannelGPercent;
		aBmpParam.nChannelBPercent = nChannelBPercent;
		aBmpParam.fGamma = fGamma;
		aBmpParam.bInvert = bInvert;

		// do color adjustment
		ImplExchangeColors( ImplColAdjustFnc, &aColParam, ImplBmpAdjustFnc, &aBmpParam );

		delete[] aColParam.pMapR;
		delete[] aColParam.pMapG;
		delete[] aColParam.pMapB;
	}
}

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

void GDIMetaFile::Convert( MtfConversion eConversion )
{
	// nothing to do? => return quickly
	if( eConversion != MTF_CONVERSION_NONE )
	{
		ImplColConvertParam	aColParam;
		ImplBmpConvertParam	aBmpParam;

		aColParam.eConversion = eConversion;
		aBmpParam.eConversion = ( MTF_CONVERSION_1BIT_THRESHOLD == eConversion ) ? BMP_CONVERSION_1BIT_THRESHOLD : BMP_CONVERSION_8BIT_GREYS;

		ImplExchangeColors( ImplColConvertFnc, &aColParam, ImplBmpConvertFnc, &aBmpParam );
	}
}

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

void GDIMetaFile::ReplaceColors( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol )
{
	ReplaceColors( &rSearchColor, &rReplaceColor, 1, &nTol );
}

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

void GDIMetaFile::ReplaceColors( const Color* pSearchColors, const Color* pReplaceColors, sal_uLong nColorCount, sal_uLong* pTols )
{
	ImplColReplaceParam aColParam;
	ImplBmpReplaceParam aBmpParam;

	aColParam.pMinR = new sal_uLong[ nColorCount ];
	aColParam.pMaxR = new sal_uLong[ nColorCount ];
	aColParam.pMinG = new sal_uLong[ nColorCount ];
	aColParam.pMaxG = new sal_uLong[ nColorCount ];
	aColParam.pMinB = new sal_uLong[ nColorCount ];
	aColParam.pMaxB = new sal_uLong[ nColorCount ];

	for( sal_uLong i = 0; i < nColorCount; i++ )
	{
		const long	nTol = pTols ? ( pTols[ i ] * 255 ) / 100 : 0;
		long		nVal;

		nVal = pSearchColors[ i ].GetRed();
		aColParam.pMinR[ i ] = (sal_uLong) Max( nVal - nTol, 0L );
		aColParam.pMaxR[ i ] = (sal_uLong) Min( nVal + nTol, 255L );

		nVal = pSearchColors[ i ].GetGreen();
		aColParam.pMinG[ i ] = (sal_uLong) Max( nVal - nTol, 0L );
		aColParam.pMaxG[ i ] = (sal_uLong) Min( nVal + nTol, 255L );

		nVal = pSearchColors[ i ].GetBlue();
		aColParam.pMinB[ i ] = (sal_uLong) Max( nVal - nTol, 0L );
		aColParam.pMaxB[ i ] = (sal_uLong) Min( nVal + nTol, 255L );
	}

	aColParam.pDstCols = pReplaceColors;
	aColParam.nCount = nColorCount;

	aBmpParam.pSrcCols = pSearchColors;
	aBmpParam.pDstCols = pReplaceColors;
	aBmpParam.nCount = nColorCount;
	aBmpParam.pTols = pTols;

	ImplExchangeColors( ImplColReplaceFnc, &aColParam, ImplBmpReplaceFnc, &aBmpParam );

	delete[] aColParam.pMinR;
	delete[] aColParam.pMaxR;
	delete[] aColParam.pMinG;
	delete[] aColParam.pMaxG;
	delete[] aColParam.pMinB;
	delete[] aColParam.pMaxB;
};

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

GDIMetaFile GDIMetaFile::GetMonochromeMtf( const Color& rColor ) const
{
	GDIMetaFile aRet( *this );

	ImplColMonoParam	aColParam;
	ImplBmpMonoParam	aBmpParam;

	aColParam.aColor = rColor;
	aBmpParam.aColor = rColor;

	aRet.ImplExchangeColors( ImplColMonoFnc, &aColParam, ImplBmpMonoFnc, &aBmpParam );

	return aRet;
}

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

sal_uLong GDIMetaFile::GetChecksum() const
{
	GDIMetaFile			aMtf;
	SvMemoryStream		aMemStm( 65535, 65535 );
	ImplMetaWriteData	aWriteData;
	SVBT16				aBT16;
	SVBT32				aBT32;
	sal_uLong				nCrc = 0;

	aWriteData.meActualCharSet = aMemStm.GetStreamCharSet();

	for( sal_uLong i = 0, nObjCount = GetActionCount(); i < nObjCount; i++ )
	{
		MetaAction* pAction = GetAction( i );

		switch( pAction->GetType() )
		{
			case( META_BMP_ACTION ):
			{
				MetaBmpAction* pAct = (MetaBmpAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_BMPSCALE_ACTION ):
			{
				MetaBmpScaleAction* pAct = (MetaBmpScaleAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_BMPSCALEPART_ACTION ):
			{
				MetaBmpScalePartAction* pAct = (MetaBmpScalePartAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_BMPEX_ACTION ):
			{
				MetaBmpExAction* pAct = (MetaBmpExAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmapEx().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_BMPEXSCALE_ACTION ):
			{
				MetaBmpExScaleAction* pAct = (MetaBmpExScaleAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmapEx().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_BMPEXSCALEPART_ACTION ):
			{
				MetaBmpExScalePartAction* pAct = (MetaBmpExScalePartAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmapEx().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_MASK_ACTION ):
			{
				MetaMaskAction* pAct = (MetaMaskAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetColor().GetColor(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_MASKSCALE_ACTION ):
			{
				MetaMaskScaleAction* pAct = (MetaMaskScaleAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetColor().GetColor(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case( META_MASKSCALEPART_ACTION ):
			{
				MetaMaskScalePartAction* pAct = (MetaMaskScalePartAction*) pAction;

				ShortToSVBT16( pAct->GetType(), aBT16 );
				nCrc = rtl_crc32( nCrc, aBT16, 2 );

				UInt32ToSVBT32( pAct->GetBitmap().GetChecksum(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetColor().GetColor(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetDestSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().X(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcPoint().Y(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Width(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );

				UInt32ToSVBT32( pAct->GetSrcSize().Height(), aBT32 );
				nCrc = rtl_crc32( nCrc, aBT32, 4 );
			}
			break;

			case META_EPS_ACTION :
			{
				MetaEPSAction* pAct = (MetaEPSAction*) pAction;
				nCrc = rtl_crc32( nCrc, pAct->GetLink().GetData(), pAct->GetLink().GetDataSize() );
			}
			break;

            case META_CLIPREGION_ACTION :
            {
                MetaClipRegionAction* pAct = dynamic_cast< MetaClipRegionAction* >(pAction);
                const Region& rRegion = pAct->GetRegion();

                if(rRegion.HasPolyPolygon())
                {
                    // It has shown that this is a possible bottleneck for checksum calculation.
                    // In worst case a very expensive RegionHandle representation gets created.
                    // In this case it's cheaper to use the PolyPolygon
                    const basegfx::B2DPolyPolygon aPolyPolygon(rRegion.GetB2DPolyPolygon());
                    const sal_uInt32 nPolyCount(aPolyPolygon.count());
                    SVBT64 aSVBT64;

                    for(sal_uInt32 a(0); a < nPolyCount; a++)
                    {
                        const basegfx::B2DPolygon aPolygon(aPolyPolygon.getB2DPolygon(a));
                        const sal_uInt32 nPointCount(aPolygon.count());
                        const bool bControl(aPolygon.areControlPointsUsed());

                        for(sal_uInt32 b(0); b < nPointCount; b++)
                        {
                            const basegfx::B2DPoint aPoint(aPolygon.getB2DPoint(b));

                            DoubleToSVBT64(aPoint.getX(), aSVBT64);
                            nCrc = rtl_crc32(nCrc, aSVBT64, 8);
                            DoubleToSVBT64(aPoint.getY(), aSVBT64);
                            nCrc = rtl_crc32(nCrc, aSVBT64, 8);

                            if(bControl)
                            {
                                if(aPolygon.isPrevControlPointUsed(b))
                                {
                                    const basegfx::B2DPoint aCtrl(aPolygon.getPrevControlPoint(b));

                                    DoubleToSVBT64(aCtrl.getX(), aSVBT64);
                                    nCrc = rtl_crc32(nCrc, aSVBT64, 8);
                                    DoubleToSVBT64(aCtrl.getY(), aSVBT64);
                                    nCrc = rtl_crc32(nCrc, aSVBT64, 8);
                                }

                                if(aPolygon.isNextControlPointUsed(b))
                                {
                                    const basegfx::B2DPoint aCtrl(aPolygon.getNextControlPoint(b));

                                    DoubleToSVBT64(aCtrl.getX(), aSVBT64);
                                    nCrc = rtl_crc32(nCrc, aSVBT64, 8);
                                    DoubleToSVBT64(aCtrl.getY(), aSVBT64);
                                    nCrc = rtl_crc32(nCrc, aSVBT64, 8);
                                }
                            }
                        }
                    }

                    SVBT8 aSVBT8;
                    ByteToSVBT8((sal_uInt8)pAct->IsClipping(), aSVBT8);
                    nCrc = rtl_crc32(nCrc, aSVBT8, 1);
                }
                else
                {
                    pAction->Write( aMemStm, &aWriteData );
                    nCrc = rtl_crc32( nCrc, aMemStm.GetData(), aMemStm.Tell() );
                    aMemStm.Seek( 0 );
                }
            }
            break;

			default:
			{
				pAction->Write( aMemStm, &aWriteData );
				nCrc = rtl_crc32( nCrc, aMemStm.GetData(), aMemStm.Tell() );
				aMemStm.Seek( 0 );
			}
			break;
		}
	}

	return nCrc;
}

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

sal_uLong GDIMetaFile::GetSizeBytes() const
{
    sal_uLong nSizeBytes = 0;

    for( sal_uLong i = 0, nObjCount = GetActionCount(); i < nObjCount; ++i )
    {
        MetaAction* pAction = GetAction( i );

        // default action size is set to 32 (=> not the exact value)
        nSizeBytes += 32;

        // add sizes for large action content
        switch( pAction->GetType() )
        {
            case( META_BMP_ACTION ): nSizeBytes += ( (MetaBmpAction*) pAction )->GetBitmap().GetSizeBytes(); break;
            case( META_BMPSCALE_ACTION ): nSizeBytes += ( (MetaBmpScaleAction*) pAction )->GetBitmap().GetSizeBytes(); break;
            case( META_BMPSCALEPART_ACTION ): nSizeBytes += ( (MetaBmpScalePartAction*) pAction )->GetBitmap().GetSizeBytes(); break;

            case( META_BMPEX_ACTION ): nSizeBytes += ( (MetaBmpExAction*) pAction )->GetBitmapEx().GetSizeBytes(); break;
            case( META_BMPEXSCALE_ACTION ): nSizeBytes += ( (MetaBmpExScaleAction*) pAction )->GetBitmapEx().GetSizeBytes(); break;
            case( META_BMPEXSCALEPART_ACTION ): nSizeBytes += ( (MetaBmpExScalePartAction*) pAction )->GetBitmapEx().GetSizeBytes(); break;

            case( META_MASK_ACTION ): nSizeBytes += ( (MetaMaskAction*) pAction )->GetBitmap().GetSizeBytes(); break;
            case( META_MASKSCALE_ACTION ): nSizeBytes += ( (MetaMaskScaleAction*) pAction )->GetBitmap().GetSizeBytes(); break;
            case( META_MASKSCALEPART_ACTION ): nSizeBytes += ( (MetaMaskScalePartAction*) pAction )->GetBitmap().GetSizeBytes(); break;

            case( META_POLYLINE_ACTION ): nSizeBytes += ( ( (MetaPolyLineAction*) pAction )->GetPolygon().GetSize() * sizeof( Point ) ); break;
            case( META_POLYGON_ACTION ): nSizeBytes += ( ( (MetaPolygonAction*) pAction )->GetPolygon().GetSize() * sizeof( Point ) ); break;
            case( META_POLYPOLYGON_ACTION ):
            {
                const PolyPolygon& rPolyPoly = ( (MetaPolyPolygonAction*) pAction )->GetPolyPolygon();

                for( sal_uInt16 n = 0; n < rPolyPoly.Count(); ++n )
                    nSizeBytes += ( rPolyPoly[ n ].GetSize() * sizeof( Point ) );
            }
            break;

            case( META_TEXT_ACTION ): nSizeBytes += ( ( (MetaTextAction*) pAction )->GetText().Len() * sizeof( sal_Unicode ) ); break;
            case( META_STRETCHTEXT_ACTION ): nSizeBytes += ( ( (MetaStretchTextAction*) pAction )->GetText().Len() * sizeof( sal_Unicode ) ); break;
            case( META_TEXTRECT_ACTION ): nSizeBytes += ( ( (MetaTextRectAction*) pAction )->GetText().Len() * sizeof( sal_Unicode ) ); break;
            case( META_TEXTARRAY_ACTION ):
            {
                MetaTextArrayAction* pTextArrayAction = (MetaTextArrayAction*) pAction;

                nSizeBytes += ( pTextArrayAction->GetText().Len() * sizeof( sal_Unicode ) );

                if( pTextArrayAction->GetDXArray() )
                    nSizeBytes += ( pTextArrayAction->GetLen() << 2 );
            }
            break;
        }
    }

    return( nSizeBytes );
}

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

SvStream& operator>>( SvStream& rIStm, GDIMetaFile& rGDIMetaFile )
{
	if( !rIStm.GetError() )
	{
		char	aId[ 7 ];
		sal_uLong	nStmPos = rIStm.Tell();
		sal_uInt16	nOldFormat = rIStm.GetNumberFormatInt();

		rIStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );

		aId[ 0 ] = 0;
		aId[ 6 ] = 0;
		rIStm.Read( aId, 6 );

		if ( !strcmp( aId, "VCLMTF" ) )
		{
			// new format
			VersionCompat*	pCompat;
			MetaAction* 	pAction;
			sal_uInt32			nStmCompressMode = 0;
			sal_uInt32			nCount = 0;

			pCompat = new VersionCompat( rIStm, STREAM_READ );

			rIStm >> nStmCompressMode;
			rIStm >> rGDIMetaFile.aPrefMapMode;
			rIStm >> rGDIMetaFile.aPrefSize;
			rIStm >> nCount;

			delete pCompat;

			ImplMetaReadData aReadData;
			aReadData.meActualCharSet = rIStm.GetStreamCharSet();

			for( sal_uInt32 nAction = 0UL; ( nAction < nCount ) && !rIStm.IsEof(); nAction++ )
			{
				pAction = MetaAction::ReadMetaAction( rIStm, &aReadData );

				if( pAction )
					rGDIMetaFile.AddAction( pAction );
			}
		}
		else
		{
			// to avoid possible compiler optimizations => new/delete
			rIStm.Seek( nStmPos );
			delete( new SVMConverter( rIStm, rGDIMetaFile, CONVERT_FROM_SVM1 ) );
		}

		// check for errors
		if( rIStm.GetError() )
		{
			rGDIMetaFile.Clear();
			rIStm.Seek( nStmPos );
		}

		rIStm.SetNumberFormatInt( nOldFormat );
	}

	return rIStm;
}

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

SvStream& operator<<( SvStream& rOStm, const GDIMetaFile& rGDIMetaFile )
{
	if( !rOStm.GetError() )
	{
        static const char*  pEnableSVM1 = getenv( "SAL_ENABLE_SVM1" );
        static const bool   bNoSVM1 = (NULL == pEnableSVM1 ) || ( '0' == *pEnableSVM1 );

        if( bNoSVM1 || rOStm.GetVersion() >= SOFFICE_FILEFORMAT_50  )
        {
            const_cast< GDIMetaFile& >( rGDIMetaFile ).Write( rOStm );
        }
        else
        {
            delete( new SVMConverter( rOStm, const_cast< GDIMetaFile& >( rGDIMetaFile ), CONVERT_TO_SVM1 ) );
        }

#ifdef DEBUG
        if( !bNoSVM1 && rOStm.GetVersion() < SOFFICE_FILEFORMAT_50 )
        {
OSL_TRACE( \
"GDIMetaFile would normally be written in old SVM1 format by this call. \
The current implementation always writes in VCLMTF format. \
Please set environment variable SAL_ENABLE_SVM1 to '1' to reenable old behavior" );
		}
#endif // DEBUG
	}

	return rOStm;
}

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

SvStream& GDIMetaFile::Read( SvStream& rIStm )
{
	Clear();
	rIStm >> *this;

	return rIStm;
}

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

SvStream& GDIMetaFile::Write( SvStream& rOStm )
{
	VersionCompat*	pCompat;
	const sal_uInt32	nStmCompressMode = rOStm.GetCompressMode();
	sal_uInt16			nOldFormat = rOStm.GetNumberFormatInt();

	rOStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
	rOStm.Write( "VCLMTF", 6 );

	pCompat = new VersionCompat( rOStm, STREAM_WRITE, 1 );

	rOStm << nStmCompressMode;
	rOStm << aPrefMapMode;
	rOStm << aPrefSize;
	rOStm << (sal_uInt32) GetActionCount();

	delete pCompat;

	ImplMetaWriteData aWriteData;
	aWriteData.meActualCharSet = rOStm.GetStreamCharSet();

	MetaAction* pAct = (MetaAction*)First();
	while ( pAct )
	{
		pAct->Write( rOStm, &aWriteData );
		pAct = (MetaAction*)Next();
	}

	rOStm.SetNumberFormatInt( nOldFormat );

	return rOStm;
}

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

sal_Bool GDIMetaFile::CreateThumbnail( sal_uInt32 nMaximumExtent,
									BitmapEx& rBmpEx,
									const BitmapEx* pOverlay,
									const Rectangle* pOverlayRect ) const
{
	// the implementation is provided by KA

	// initialization seems to be complicated but is used to avoid rounding errors
	VirtualDevice	aVDev;
	const Point     aNullPt;
	const Point     aTLPix( aVDev.LogicToPixel( aNullPt, GetPrefMapMode() ) );
	const Point     aBRPix( aVDev.LogicToPixel( Point( GetPrefSize().Width() - 1, GetPrefSize().Height() - 1 ), GetPrefMapMode() ) );
	Size            aDrawSize( aVDev.LogicToPixel( GetPrefSize(), GetPrefMapMode() ) );
	Size			aSizePix( labs( aBRPix.X() - aTLPix.X() ) + 1, labs( aBRPix.Y() - aTLPix.Y() ) + 1 );
	Point			aPosPix;

	if ( !rBmpEx.IsEmpty() )
		rBmpEx.SetEmpty();

	// determine size that has the same aspect ratio as image size and
	// fits into the rectangle determined by nMaximumExtent
	if ( aSizePix.Width() && aSizePix.Height()
	  && ( sal::static_int_cast< unsigned long >(aSizePix.Width()) >
               nMaximumExtent ||
           sal::static_int_cast< unsigned long >(aSizePix.Height()) >
               nMaximumExtent ) )
	{
		const Size  aOldSizePix( aSizePix );
		double      fWH = static_cast< double >( aSizePix.Width() ) / aSizePix.Height();

		if ( fWH <= 1.0 )
		{
			aSizePix.Width() = FRound( nMaximumExtent * fWH );
			aSizePix.Height() = nMaximumExtent;
		}
		else
		{
			aSizePix.Width() = nMaximumExtent;
			aSizePix.Height() = FRound(  nMaximumExtent / fWH );
		}

		aDrawSize.Width() = FRound( ( static_cast< double >( aDrawSize.Width() ) * aSizePix.Width() ) / aOldSizePix.Width() );
		aDrawSize.Height() = FRound( ( static_cast< double >( aDrawSize.Height() ) * aSizePix.Height() ) / aOldSizePix.Height() );
	}

	Size 		aFullSize;
	Point		aBackPosPix;
	Rectangle 	aOverlayRect;

	// calculate addigtional positions and sizes if an overlay image is used
	if (  pOverlay )
	{
		aFullSize = Size( nMaximumExtent, nMaximumExtent );
		aOverlayRect = Rectangle( aNullPt, aFullSize  );

		aOverlayRect.Intersection( pOverlayRect ? *pOverlayRect : Rectangle( aNullPt, pOverlay->GetSizePixel() ) );

		if ( !aOverlayRect.IsEmpty() )
			aBackPosPix = Point( ( nMaximumExtent - aSizePix.Width() ) >> 1, ( nMaximumExtent - aSizePix.Height() ) >> 1 );
		else
			pOverlay = NULL;
	}
	else
	{
		aFullSize = aSizePix;
		pOverlay = NULL;
	}

	// draw image(s) into VDev and get resulting image
	if ( aVDev.SetOutputSizePixel( aFullSize ) )
	{
		// draw metafile into VDev
		const_cast<GDIMetaFile *>(this)->WindStart();
		const_cast<GDIMetaFile *>(this)->Play( &aVDev, aBackPosPix, aDrawSize );

		// draw overlay if neccessary
		if ( pOverlay )
			aVDev.DrawBitmapEx( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), *pOverlay );

		// get paint bitmap
		Bitmap aBmp( aVDev.GetBitmap( aNullPt, aVDev.GetOutputSizePixel() ) );

		// assure that we have a true color image
		if ( aBmp.GetBitCount() != 24 )
			aBmp.Convert( BMP_CONVERSION_24BIT );

		// create resulting mask bitmap with metafile output set to black
		GDIMetaFile aMonchromeMtf( GetMonochromeMtf( COL_BLACK ) );
		aVDev.DrawWallpaper( Rectangle( aNullPt, aSizePix ), Wallpaper( Color( COL_WHITE ) ) );
		aMonchromeMtf.WindStart();
		aMonchromeMtf.Play( &aVDev, aBackPosPix, aDrawSize );

		// watch for overlay mask
		if ( pOverlay  )
		{
			Bitmap aOverlayMergeBmp( aVDev.GetBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize() ) );

			// create ANDed resulting mask at overlay area
			if ( pOverlay->IsTransparent() )
				aVDev.DrawBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), pOverlay->GetMask() );
			else
			{
				aVDev.SetLineColor( COL_BLACK );
				aVDev.SetFillColor( COL_BLACK );
				aVDev.DrawRect( aOverlayRect);
			}

			aOverlayMergeBmp.CombineSimple( aVDev.GetBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize() ), BMP_COMBINE_AND );
			aVDev.DrawBitmap( aOverlayRect.TopLeft(), aOverlayRect.GetSize(), aOverlayMergeBmp );
		}

		rBmpEx = BitmapEx( aBmp, aVDev.GetBitmap( aNullPt, aVDev.GetOutputSizePixel() ) );
	}

	return !rBmpEx.IsEmpty();
}