/**************************************************************
 * 
 * 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 <boost/scoped_ptr.hpp> 
#include <boost/scoped_array.hpp> 
 
#include <rtl/logfile.hxx>

#include <tools/debug.hxx>
#include <tools/stream.hxx>
#include <tools/rc.h>
#include <tools/rc.hxx>
#include <tools/resmgr.hxx>

#include <vcl/settings.hxx>
#include <vcl/outdev.hxx>
#include <vcl/graph.hxx>
#include <vcl/svapp.hxx>
#include <vcl/image.hxx>

#include <impimagetree.hxx>
#include <image.h>

#if OSL_DEBUG_LEVEL > 0
#include <rtl/strbuf.hxx>
#endif

DBG_NAME( Image )
DBG_NAME( ImageList )

#define IMAGE_FILE_VERSION 100

using namespace ::com::sun::star;

// ---------
// - Image -
// ---------

Image::Image() :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );
}

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

Image::Image( const ResId& rResId ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );

	rResId.SetRT( RSC_IMAGE );

	ResMgr* pResMgr = rResId.GetResMgr();
	if( pResMgr && pResMgr->GetResource( rResId ) )
	{
		pResMgr->Increment( sizeof( RSHEADER_TYPE ) );

		BitmapEx	aBmpEx;
		sal_uLong 		nObjMask = pResMgr->ReadLong();

		if( nObjMask & RSC_IMAGE_IMAGEBITMAP )
		{
			aBmpEx = BitmapEx( ResId( (RSHEADER_TYPE*)pResMgr->GetClass(), *pResMgr ) );
			pResMgr->Increment( pResMgr->GetObjSize( (RSHEADER_TYPE*)pResMgr->GetClass() ) );
		}

        if( nObjMask & RSC_IMAGE_MASKBITMAP )
        {
            if( !aBmpEx.IsEmpty() && aBmpEx.GetTransparentType() == TRANSPARENT_NONE )
            {
                const Bitmap aMaskBitmap( ResId( (RSHEADER_TYPE*)pResMgr->GetClass(), *pResMgr ) );
                aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aMaskBitmap );
            }

            pResMgr->Increment( pResMgr->GetObjSize( (RSHEADER_TYPE*)pResMgr->GetClass() ) );
        }

        if( nObjMask & RSC_IMAGE_MASKCOLOR )
        {
            if( !aBmpEx.IsEmpty() && aBmpEx.GetTransparentType() == TRANSPARENT_NONE )
            {
                const Color aMaskColor( ResId( (RSHEADER_TYPE*)pResMgr->GetClass(), *pResMgr ) );
                aBmpEx = BitmapEx( aBmpEx.GetBitmap(), aMaskColor );
            }

            pResMgr->Increment( pResMgr->GetObjSize( (RSHEADER_TYPE*)pResMgr->GetClass() ) );
        }
        if( ! aBmpEx.IsEmpty() )
			ImplInit( aBmpEx );
	}
}

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

Image::Image( const Image& rImage ) :
	mpImplData( rImage.mpImplData )
{
	DBG_CTOR( Image, NULL );

	if( mpImplData )
		++mpImplData->mnRefCount;
}

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

Image::Image( const BitmapEx& rBitmapEx ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );

	ImplInit( rBitmapEx );
}

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

Image::Image( const Bitmap& rBitmap ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );

	ImplInit( rBitmap );
}

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

Image::Image( const Bitmap& rBitmap, const Bitmap& rMaskBitmap ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );

	const BitmapEx aBmpEx( rBitmap, rMaskBitmap );
	
	ImplInit( aBmpEx );
}

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

Image::Image( const Bitmap& rBitmap, const Color& rColor ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );

	const BitmapEx aBmpEx( rBitmap, rColor );
	
	ImplInit( aBmpEx );
}

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

Image::Image( const uno::Reference< graphic::XGraphic >& rxGraphic ) :
	mpImplData( NULL )
{
	DBG_CTOR( Image, NULL );
	
	const Graphic aGraphic( rxGraphic );
	ImplInit( aGraphic.GetBitmapEx() );
}

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

Image::~Image()
{
	DBG_DTOR( Image, NULL );

	if( mpImplData && ( 0 == --mpImplData->mnRefCount ) )
		delete mpImplData;
}

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

void Image::ImplInit( const BitmapEx& rBmpEx )
{
	if( !rBmpEx.IsEmpty() )
	{
		mpImplData = new ImplImage;
		mpImplData->mnRefCount = 1;

		if( rBmpEx.GetTransparentType() == TRANSPARENT_NONE )
		{
			mpImplData->meType = IMAGETYPE_BITMAP;
			mpImplData->mpData = new Bitmap( rBmpEx.GetBitmap() );
		}
		else
		{
			mpImplData->meType = IMAGETYPE_IMAGE;
			mpImplData->mpData = new ImplImageData( rBmpEx );
		}
	}
}

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

Size Image::GetSizePixel() const
{
	DBG_CHKTHIS( Image, NULL );
	
	Size aRet;

	if( mpImplData )
	{
		switch( mpImplData->meType )
		{
			case IMAGETYPE_BITMAP:
				aRet = static_cast< Bitmap* >( mpImplData->mpData )->GetSizePixel();
			break;

			case IMAGETYPE_IMAGE:
				aRet = static_cast< ImplImageData* >( mpImplData->mpData )->maBmpEx.GetSizePixel();
			break;
		}
	}

	return aRet;
}

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

BitmapEx Image::GetBitmapEx() const
{
	DBG_CHKTHIS( Image, NULL );
	
	BitmapEx aRet;

	if( mpImplData )
	{
		switch( mpImplData->meType )
		{
			case IMAGETYPE_BITMAP:
				aRet = *static_cast< Bitmap* >( mpImplData->mpData );
			break;

			case IMAGETYPE_IMAGE:
				aRet = static_cast< ImplImageData* >( mpImplData->mpData )->maBmpEx;
			break;
		}
	}

	return aRet;
}

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

uno::Reference< graphic::XGraphic > Image::GetXGraphic() const
{
	const Graphic aGraphic( GetBitmapEx() );
	
	return aGraphic.GetXGraphic();
}

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

Image Image::GetColorTransformedImage( ImageColorTransform eColorTransform ) const
{
	DBG_CHKTHIS( Image, NULL );

    Image aRet;

    if( IMAGECOLORTRANSFORM_HIGHCONTRAST == eColorTransform )
    {
        BitmapEx aBmpEx( GetBitmapEx() );

        if( !aBmpEx.IsEmpty() )
        {
            Color*  pSrcColors = NULL;
            Color*  pDstColors = NULL;
            sal_uLong   nColorCount = 0;

            Image::GetColorTransformArrays( eColorTransform, pSrcColors, pDstColors, nColorCount );

            if( nColorCount && pSrcColors && pDstColors )
            {
                aBmpEx.Replace( pSrcColors, pDstColors, nColorCount ); 
				aRet = Image( aBmpEx );
            }

            delete[] pSrcColors;
            delete[] pDstColors;
        }
    }
	else if( IMAGECOLORTRANSFORM_MONOCHROME_BLACK == eColorTransform ||
			 IMAGECOLORTRANSFORM_MONOCHROME_WHITE == eColorTransform  )
	{
        BitmapEx aBmpEx( GetBitmapEx() );

        if( !aBmpEx.IsEmpty() )
			aRet = Image( aBmpEx.GetColorTransformedBitmapEx( ( BmpColorMode )( eColorTransform ) ) );
	}

    if( !aRet )
        aRet = *this;

    return aRet;
}

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

void Image::Invert()
{
    BitmapEx aInvertedBmp( GetBitmapEx() );
    aInvertedBmp.Invert();
    *this = aInvertedBmp;
}

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

void Image::GetColorTransformArrays( ImageColorTransform eColorTransform,
                                     Color*& rpSrcColor, Color*& rpDstColor, sal_uLong& rColorCount )
{
    if( IMAGECOLORTRANSFORM_HIGHCONTRAST == eColorTransform )
    {
        rpSrcColor = new Color[ 4 ];
        rpDstColor = new Color[ 4 ];
        rColorCount = 4;

        rpSrcColor[ 0 ] = Color( COL_BLACK );
        rpDstColor[ 0 ] = Color( COL_WHITE );

        rpSrcColor[ 1 ] = Color( COL_WHITE );
        rpDstColor[ 1 ] = Color( COL_BLACK );

        rpSrcColor[ 2 ] = Color( COL_BLUE );
        rpDstColor[ 2 ] = Color( COL_WHITE );

        rpSrcColor[ 3 ] = Color( COL_LIGHTBLUE );
        rpDstColor[ 3 ] = Color( COL_WHITE );
    }
    else
    {
        rpSrcColor = rpDstColor = NULL;
        rColorCount = 0;
    }
}

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

Image& Image::operator=( const Image& rImage )
{
	DBG_CHKTHIS( Image, NULL );
	DBG_CHKOBJ( &rImage, Image, NULL );

	if( rImage.mpImplData )
		++rImage.mpImplData->mnRefCount;

	if( mpImplData && ( 0 == --mpImplData->mnRefCount ) )
		delete mpImplData;
	
	mpImplData = rImage.mpImplData;

	return *this;
}

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

sal_Bool Image::operator==( const Image& rImage ) const
{
	DBG_CHKTHIS( Image, NULL );
	DBG_CHKOBJ( &rImage, Image, NULL );
	
	bool bRet = false;

	if( rImage.mpImplData == mpImplData )
		bRet = true;
	else if( !rImage.mpImplData || !mpImplData )
		bRet = false;
	else if( rImage.mpImplData->mpData == mpImplData->mpData )
		bRet = true;
	else if( rImage.mpImplData->meType == mpImplData->meType )
	{
		switch( mpImplData->meType )
		{
			case IMAGETYPE_BITMAP:
				bRet = ( *static_cast< Bitmap* >( rImage.mpImplData->mpData ) == *static_cast< Bitmap* >( mpImplData->mpData ) );
			break;

			case IMAGETYPE_IMAGE:
				bRet = static_cast< ImplImageData* >( rImage.mpImplData->mpData )->IsEqual( *static_cast< ImplImageData* >( mpImplData->mpData ) );
			break;
			
			default:
				bRet = false;
			break;
		}
	}

	return bRet;
}

// -------------
// - ImageList -
// -------------

ImageList::ImageList( sal_uInt16 nInit, sal_uInt16 nGrow ) :
	mpImplData( NULL ),
	mnInitSize( nInit ),
	mnGrowSize( nGrow )
{
	DBG_CTOR( ImageList, NULL );
}

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

ImageList::ImageList( const ResId& rResId ) :
	mpImplData( NULL ),
	mnInitSize( 1 ),
	mnGrowSize( 4 )
{
    RTL_LOGFILE_CONTEXT( aLog, "vcl: ImageList::ImageList( const ResId& rResId )" );

	DBG_CTOR( ImageList, NULL );
	
	rResId.SetRT( RSC_IMAGELIST );
	
	ResMgr* pResMgr = rResId.GetResMgr();

	if( pResMgr && pResMgr->GetResource( rResId ) )
	{
		pResMgr->Increment( sizeof( RSHEADER_TYPE ) );

		sal_uLong 								nObjMask = pResMgr->ReadLong();
		const String						aPrefix( pResMgr->ReadString() );
        ::boost::scoped_ptr< Color >        spMaskColor;

		if( nObjMask & RSC_IMAGE_MASKCOLOR )
            spMaskColor.reset( new Color( ResId( (RSHEADER_TYPE*)pResMgr->GetClass(), *pResMgr ) ) );
		
		pResMgr->Increment( pResMgr->GetObjSize( (RSHEADER_TYPE*)pResMgr->GetClass() ) );
		
		if( nObjMask & RSC_IMAGELIST_IDLIST )
		{
			for( sal_Int32 i = 0, nCount = pResMgr->ReadLong(); i < nCount; ++i )
				pResMgr->ReadLong();
		}
		
		sal_Int32 nCount = pResMgr->ReadLong();
		ImplInit( static_cast< sal_uInt16 >( nCount ), Size() );

		BitmapEx aEmpty;
		for( sal_Int32 i = 0; i < nCount; ++i )
		{
			rtl::OUString aName = pResMgr->ReadString();
			sal_uInt16 nId = static_cast< sal_uInt16 >( pResMgr->ReadLong() );
			mpImplData->AddImage( aName, nId, aEmpty );
		}

		if( nObjMask & RSC_IMAGELIST_IDCOUNT )
			pResMgr->ReadShort();
	}
}

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

ImageList::ImageList( const ::std::vector< ::rtl::OUString >& rNameVector, 
					  const ::rtl::OUString& rPrefix, 
					  const Color* ) :
	mpImplData( NULL ),
	mnInitSize( 1 ),
	mnGrowSize( 4 )
{
    RTL_LOGFILE_CONTEXT( aLog, "vcl: ImageList::ImageList(const vector< OUString >& ..." );

	DBG_CTOR( ImageList, NULL );

    ImplInit( sal::static_int_cast< sal_uInt16 >( rNameVector.size() ), Size() );

	mpImplData->maPrefix = rPrefix;
	for( sal_uInt32 i = 0; i < rNameVector.size(); ++i )
	{
//		fprintf (stderr, "List %p [%d]: '%s'\n",
//				 this, i, rtl::OUStringToOString( rNameVector[i], RTL_TEXTENCODING_UTF8 ).getStr() );
		mpImplData->AddImage( rNameVector[ i ], static_cast< sal_uInt16 >( i ) + 1, BitmapEx() );
	}
}

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

ImageList::ImageList( const ImageList& rImageList ) :
	mpImplData( rImageList.mpImplData ),
	mnInitSize( rImageList.mnInitSize ),
	mnGrowSize( rImageList.mnGrowSize )
{
	DBG_CTOR( ImageList, NULL );

	if( mpImplData )
		++mpImplData->mnRefCount;
}

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

ImageList::~ImageList()
{
	DBG_DTOR( ImageList, NULL );

	if( mpImplData && ( 0 == --mpImplData->mnRefCount ) )
		delete mpImplData;
}

void ImageList::ImplInit( sal_uInt16 nItems, const Size &rSize )
{
	mpImplData = new ImplImageList;
	mpImplData->mnRefCount = 1;
	mpImplData->maImages.reserve( nItems );
	mpImplData->maImageSize = rSize;
}

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

void ImageAryData::Load(const rtl::OUString &rPrefix)
{
    static ImplImageTreeSingletonRef aImageTree;

	::rtl::OUString aSymbolsStyle = Application::GetSettings().GetStyleSettings().GetCurrentSymbolsStyleName();

	BitmapEx aBmpEx;

//	fprintf (stderr, "Attempt load of '%s'\n",
//			 rtl::OUStringToOString( maName, RTL_TEXTENCODING_UTF8 ).getStr() );

	rtl::OUString aFileName = rPrefix;
	aFileName += maName;
#if OSL_DEBUG_LEVEL > 0
	bool bSuccess =
#endif
        aImageTree->loadImage( aFileName, aSymbolsStyle, maBitmapEx, true );
#if OSL_DEBUG_LEVEL > 0
    if ( !bSuccess )
    {
        ::rtl::OStringBuffer aMessage;
        aMessage.append( "ImageAryData::Load: failed to load image '" );
        aMessage.append( ::rtl::OUStringToOString( aFileName, RTL_TEXTENCODING_UTF8 ).getStr() );
        aMessage.append( "'" );
        OSL_ENSURE( false, aMessage.makeStringAndClear().getStr() );
    }
#endif
}

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

void ImageList::ImplMakeUnique()
{
	if( mpImplData && mpImplData->mnRefCount > 1 )
	{
		--mpImplData->mnRefCount;
		mpImplData = new ImplImageList( *mpImplData ) ;
	}
}

// -----------------------------------------------------------------------
// Rather a performance hazard:
BitmapEx ImageList::GetAsHorizontalStrip() const
{
	Size aSize( mpImplData->maImageSize );
    sal_uInt16 nCount = GetImageCount();
	if( !nCount )
		return BitmapEx();
	aSize.Width() *= nCount;

	// Load any stragglers
    for (sal_uInt16 nIdx = 0; nIdx < nCount; nIdx++)
	{
		ImageAryData *pData = mpImplData->maImages[ nIdx ];
		if( pData->IsLoadable() )
			pData->Load( mpImplData->maPrefix );
	}

	BitmapEx aTempl = mpImplData->maImages[ 0 ]->maBitmapEx;
	BitmapEx aResult;
	Bitmap aPixels( aSize, aTempl.GetBitmap().GetBitCount() );
	if( aTempl.IsAlpha() )
		aResult = BitmapEx( aPixels, AlphaMask( aSize ) );
	else if( aTempl.IsTransparent() )
		aResult = BitmapEx( aPixels, Bitmap( aSize, aTempl.GetMask().GetBitCount() ) );
	else
		aResult = BitmapEx( aPixels );

	Rectangle aSrcRect( Point( 0, 0 ), mpImplData->maImageSize );
    for (sal_uInt16 nIdx = 0; nIdx < nCount; nIdx++)
	{
		Rectangle aDestRect( Point( nIdx * mpImplData->maImageSize.Width(), 0 ),
							 mpImplData->maImageSize );
		ImageAryData *pData = mpImplData->maImages[ nIdx ];
		aResult.CopyPixel( aDestRect, aSrcRect, &pData->maBitmapEx);
	}

	return aResult;
}

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

void ImageList::InsertFromHorizontalStrip( const BitmapEx &rBitmapEx,
										   const std::vector< rtl::OUString > &rNameVector )
{
    sal_uInt16 nItems = sal::static_int_cast< sal_uInt16 >( rNameVector.size() );

//	fprintf (stderr, "InsertFromHorizontalStrip (1) [%d items]\n", nItems);

	if (!nItems)
			return;

	Size aSize( rBitmapEx.GetSizePixel() );
	DBG_ASSERT (rBitmapEx.GetSizePixel().Width() % nItems == 0,
				"ImageList::InsertFromHorizontalStrip - very odd size");
	aSize.Width() /= nItems;
	ImplInit( nItems, aSize );

    for (sal_uInt16 nIdx = 0; nIdx < nItems; nIdx++)
	{
		BitmapEx aBitmap( rBitmapEx, Point( nIdx * aSize.Width(), 0 ), aSize );
		mpImplData->AddImage( rNameVector[ nIdx ], nIdx + 1, aBitmap );
	}
}

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

void ImageList::InsertFromHorizontalBitmap( const ResId& rResId,
											sal_uInt16       nCount,
											const Color *pMaskColor,
											const Color *pSearchColors, 
											const Color *pReplaceColors,
											sal_uLong        nColorCount)
{
	BitmapEx aBmpEx( rResId );
	if (!aBmpEx.IsTransparent())
	{
        if( pMaskColor )
            aBmpEx = BitmapEx( aBmpEx.GetBitmap(), *pMaskColor );
        else
            aBmpEx = BitmapEx( aBmpEx.GetBitmap() );
    }
	if ( nColorCount && pSearchColors && pReplaceColors )
		aBmpEx.Replace( pSearchColors, pReplaceColors, nColorCount );
	
	std::vector< rtl::OUString > aNames( nCount );
	InsertFromHorizontalStrip( aBmpEx, aNames );
}

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

sal_uInt16 ImageList::ImplGetImageId( const ::rtl::OUString& rImageName ) const
{
	DBG_CHKTHIS( ImageList, NULL );

	ImageAryData *pImg = mpImplData->maNameHash[ rImageName ];
	if( pImg )
		return pImg->mnId;
	else
		return 0;
}

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

void ImageList::AddImage( sal_uInt16 nId, const Image& rImage )
{
	DBG_CHKTHIS( ImageList, NULL );
	DBG_CHKOBJ( &rImage, Image, NULL );
	DBG_ASSERT( nId, "ImageList::AddImage(): ImageId == 0" );
	DBG_ASSERT( GetImagePos( nId ) == IMAGELIST_IMAGE_NOTFOUND, "ImageList::AddImage() - ImageId already exists" );
	DBG_ASSERT( rImage.mpImplData, "ImageList::AddImage(): Wrong Size" );
	DBG_ASSERT( !mpImplData || (rImage.GetSizePixel() == mpImplData->maImageSize), "ImageList::AddImage(): Wrong Size" );

	if( !mpImplData )
		ImplInit( 0, rImage.GetSizePixel() );

	mpImplData->AddImage( rtl::OUString(), nId, rImage.GetBitmapEx());
}

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

void ImageList::AddImage( const ::rtl::OUString& rImageName, const Image& rImage )
{
	DBG_ASSERT( GetImagePos( rImageName ) == IMAGELIST_IMAGE_NOTFOUND, "ImageList::AddImage() - ImageName already exists" );

	if( !mpImplData )
		ImplInit( 0, rImage.GetSizePixel() );

    mpImplData->AddImage( rImageName, GetImageCount() + 1,
						  rImage.GetBitmapEx() );
}

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

void ImageList::ReplaceImage( sal_uInt16 nId, const Image& rImage )
{
	DBG_CHKTHIS( ImageList, NULL );
	DBG_CHKOBJ( &rImage, Image, NULL );
	DBG_ASSERT( GetImagePos( nId ) != IMAGELIST_IMAGE_NOTFOUND, "ImageList::ReplaceImage(): Unknown nId" );

	RemoveImage( nId );
	AddImage( nId, rImage );
}

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

void ImageList::ReplaceImage( const ::rtl::OUString& rImageName, const Image& rImage )
{
    const sal_uInt16 nId = ImplGetImageId( rImageName );

	if( nId )
    {
        RemoveImage( nId );
	    
        if( !mpImplData )
		    ImplInit( 0, rImage.GetSizePixel() );
        mpImplData->AddImage( rImageName, nId, rImage.GetBitmapEx());
    }
}

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

void ImageList::ReplaceImage( sal_uInt16 nId, sal_uInt16 nReplaceId )
{
	DBG_CHKTHIS( ImageList, NULL );
	DBG_ASSERT( GetImagePos( nId ) != IMAGELIST_IMAGE_NOTFOUND, "ImageList::ReplaceImage(): Unknown nId" );
	DBG_ASSERT( GetImagePos( nReplaceId ) != IMAGELIST_IMAGE_NOTFOUND, "ImageList::ReplaceImage(): Unknown nReplaceId" );

	sal_uLong nPosDest = GetImagePos( nId );
	sal_uLong nPosSrc = GetImagePos( nReplaceId );
	if( nPosDest != IMAGELIST_IMAGE_NOTFOUND &&
		nPosSrc != IMAGELIST_IMAGE_NOTFOUND )
	{
		ImplMakeUnique();
		mpImplData->maImages[nPosDest] = mpImplData->maImages[nPosSrc];
	}
}

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

void ImageList::ReplaceImage( const ::rtl::OUString& rImageName, const ::rtl::OUString& rReplaceName )
{
    const sal_uInt16 nId1 = ImplGetImageId( rImageName ), nId2 = ImplGetImageId( rReplaceName );

	if( nId1 && nId2 )
        ReplaceImage( nId1, nId2 );
}

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

void ImageList::RemoveImage( sal_uInt16 nId )
{
	DBG_CHKTHIS( ImageList, NULL );

	for( sal_uInt32 i = 0; i < mpImplData->maImages.size(); ++i )
	{
		if( mpImplData->maImages[ i ]->mnId == nId )
		{
			mpImplData->RemoveImage( static_cast< sal_uInt16 >( i ) );
			break;
		}
	}
}

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

void ImageList::RemoveImage( const ::rtl::OUString& rImageName )
{
    const sal_uInt16 nId = ImplGetImageId( rImageName );

    if( nId )
        RemoveImage( nId );
}

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

Image ImageList::GetImage( sal_uInt16 nId ) const
{
	DBG_CHKTHIS( ImageList, NULL );

//	fprintf (stderr, "GetImage %d\n", nId);

	Image aRet;

	if( mpImplData )
	{
		std::vector<ImageAryData *>::iterator aIter;
		for( aIter = mpImplData->maImages.begin();
			 aIter != mpImplData->maImages.end(); aIter++)
		{
			if ((*aIter)->mnId == nId)
			{
				if( (*aIter)->IsLoadable() )
					(*aIter)->Load( mpImplData->maPrefix );

				aRet = Image( (*aIter)->maBitmapEx );
			}
		}
	}

	return aRet;
}

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

Image ImageList::GetImage( const ::rtl::OUString& rImageName ) const
{
//	fprintf (stderr, "GetImage '%s'\n",
//			 rtl::OUStringToOString( rImageName, RTL_TEXTENCODING_UTF8 ).getStr() );

	if( mpImplData )
	{
		ImageAryData *pImg = mpImplData->maNameHash[ rImageName ];
		
		if( pImg )
		{
			if( pImg->IsLoadable() )
				pImg->Load( mpImplData->maPrefix );
			return Image( pImg->maBitmapEx );
		}
	}
//	fprintf (stderr, "no such image\n");

	return Image();
}

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

void ImageList::Clear()
{
	DBG_CHKTHIS( ImageList, NULL );

	if( mpImplData && ( 0 == --mpImplData->mnRefCount ) )
		delete mpImplData;

	mpImplData = NULL;
}

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

sal_uInt16 ImageList::GetImageCount() const
{
	DBG_CHKTHIS( ImageList, NULL );
	
	return mpImplData ? static_cast< sal_uInt16 >( mpImplData->maImages.size() ) : 0;
}

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

sal_uInt16 ImageList::GetImagePos( sal_uInt16 nId ) const
{
	DBG_CHKTHIS( ImageList, NULL );

	if( mpImplData && nId )
	{
		for( sal_uInt32 i = 0; i < mpImplData->maImages.size(); ++i )
		{
			if (mpImplData->maImages[ i ]->mnId == nId)
				return static_cast< sal_uInt16 >( i );
		}
	}

	return IMAGELIST_IMAGE_NOTFOUND;
}

bool ImageList::HasImageAtPos( sal_uInt16 nId ) const
{
	return GetImagePos( nId ) != IMAGELIST_IMAGE_NOTFOUND;
}

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

sal_uInt16 ImageList::GetImagePos( const ::rtl::OUString& rImageName ) const
{
	DBG_CHKTHIS( ImageList, NULL );

	if( mpImplData && rImageName.getLength() )
	{
		for( sal_uInt32 i = 0; i < mpImplData->maImages.size(); i++ )
		{
			if (mpImplData->maImages[i]->maName == rImageName)
				return static_cast< sal_uInt16 >( i );
		}
	}

	return IMAGELIST_IMAGE_NOTFOUND;
}

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

sal_uInt16 ImageList::GetImageId( sal_uInt16 nPos ) const
{
	DBG_CHKTHIS( ImageList, NULL );

    if( mpImplData && (nPos < GetImageCount()) )
		return mpImplData->maImages[ nPos ]->mnId;

	return 0;
}

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

void ImageList::GetImageIds( ::std::vector< sal_uInt16 >& rIds ) const
{
    RTL_LOGFILE_CONTEXT( aLog, "vcl: ImageList::GetImageIds" );

	DBG_CHKTHIS( ImageList, NULL );

	rIds = ::std::vector< sal_uInt16 >();
	
	if( mpImplData )
	{
		for( sal_uInt32 i = 0; i < mpImplData->maImages.size(); i++ )
			rIds.push_back( mpImplData->maImages[i]->mnId );
	}
}

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

::rtl::OUString	ImageList::GetImageName( sal_uInt16 nPos ) const
{
	DBG_CHKTHIS( ImageList, NULL );

    if( mpImplData && (nPos < GetImageCount()) )
		return mpImplData->maImages[ nPos ]->maName;

	return ::rtl::OUString();
}

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

void ImageList::GetImageNames( ::std::vector< ::rtl::OUString >& rNames ) const
{
    RTL_LOGFILE_CONTEXT( aLog, "vcl: ImageList::GetImageNames" );

	DBG_CHKTHIS( ImageList, NULL );

	rNames = ::std::vector< ::rtl::OUString >();
	
	if( mpImplData )
	{
		for( sal_uInt32 i = 0; i < mpImplData->maImages.size(); i++ )
        {
            const rtl::OUString& rName( mpImplData->maImages[ i ]->maName );
            if( rName.getLength() != 0 )
                rNames.push_back( rName );
        }
	}
}

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

Size ImageList::GetImageSize() const
{
	DBG_CHKTHIS( ImageList, NULL );
	
	Size aRet;

	if( mpImplData )
	{
		aRet = mpImplData->maImageSize;

		// force load of 1st image to see - uncommon case.
		if( aRet.Width() == 0 && aRet.Height() == 0 &&
            !mpImplData->maImages.empty() )
		{
			Image aTmp = GetImage( mpImplData->maImages[ 0 ]->mnId );
			aRet = mpImplData->maImageSize = aTmp.GetSizePixel();
		}
	}
//	fprintf (stderr, "GetImageSize returns %d, %d\n",
//			 aRet.Width(), aRet.Height());

	return aRet;
}

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

ImageList& ImageList::operator=( const ImageList& rImageList )
{
	DBG_CHKTHIS( ImageList, NULL );
	DBG_CHKOBJ( &rImageList, ImageList, NULL );

	if( rImageList.mpImplData )
		++rImageList.mpImplData->mnRefCount;

	if( mpImplData && ( 0 == --mpImplData->mnRefCount ) )
		delete mpImplData;

	mpImplData = rImageList.mpImplData;

	return *this;
}

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

sal_Bool ImageList::operator==( const ImageList& rImageList ) const
{
	DBG_CHKTHIS( ImageList, NULL );
	DBG_CHKOBJ( &rImageList, ImageList, NULL );
	
	bool bRet = false;

	if( rImageList.mpImplData == mpImplData )
		bRet = true;
	else if( !rImageList.mpImplData || !mpImplData )
		bRet = false;
	else if( rImageList.GetImageCount() == GetImageCount() &&
		 	 rImageList.mpImplData->maImageSize == mpImplData->maImageSize )
		bRet = true; // strange semantic

	return bRet;
}