--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/svgtopt/SVG/SVGImpl/src/SVGImageHashMap.cpp	Thu Jan 07 16:19:02 2010 +0200
@@ -0,0 +1,319 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  SVG Implementation source file
+ *
+*/
+
+
+#include "SVGImageHashMap.h"
+
+// DECODED IMAGE STORAGE FOR IMAGE ELEMENTS TO SHARE
+// SO IMAGES WITH THE SAME XLINK-HREF don't have to decode twice
+// SVG FONT STORAGE FOR JSR 226 ONLY
+// BECAUSE WE DONT HAVE AN ENGINE AT PARSE TIME
+// FOR SVG FONTS
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageHashMap* CSvgImageHashMap::NewL()
+    {
+    CSvgImageHashMap*   self    = new ( ELeave ) CSvgImageHashMap;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+
+    return self;
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageHashMap* CSvgImageHashMap::NewLC()
+    {
+    CSvgImageHashMap*   self    = new ( ELeave ) CSvgImageHashMap;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+
+    return self;
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+void CSvgImageHashMap::ConstructL()
+    {
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageHashMap::CSvgImageHashMap()
+
+    {
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageHashMap::~CSvgImageHashMap()
+    {
+    	iSvgImageMapItems.ResetAndDestroy();
+    	iSvgImageMapItems.Close();
+    }
+
+// ==========================================================================
+// CSvgImageHashMap::AddImageL( CFbsBitmap* aImagePtr,
+//                                 const TDesC& aImageName )
+// return ETrue if image added
+// return EFalse if image was already in map
+// ==========================================================================
+TBool CSvgImageHashMap::AddImageL( CFbsBitmap* aImagePtr,
+                                 const TDesC& aImageName )
+{
+	CSvgImageMapItem* lImageMapItem = GetImageMapItem( aImageName );
+
+    	if (lImageMapItem)
+    	{
+    		//already a reference to this image in the image map
+    		lImageMapItem->IncrementReferenceCount();
+    		return EFalse;
+    	}
+    	else
+    	{
+    		//didnt find that image in the image map...add it
+			CSvgImageMapItem* lNewSvgImageMapItem = CSvgImageMapItem::NewL( );
+
+			lNewSvgImageMapItem->SetImagePtr( aImagePtr );
+       		lNewSvgImageMapItem->CopyImageNameL( aImageName );
+       		lNewSvgImageMapItem->IncrementReferenceCount();
+
+			iSvgImageMapItems.Append(lNewSvgImageMapItem);
+
+			return ETrue;
+		}
+}
+
+// --------------------------------------------------------------------------
+// TBool CSvgImageHashMap::HasImageName( const TDesC& aImageName
+// ---------------------------------------------------------------------------
+TBool CSvgImageHashMap::HasImageName( const TDesC& aImageName )
+    {
+        TBool lHaveImage = EFalse;
+
+		TInt svgImageMapItemsCnt = iSvgImageMapItems.Count();
+        for (TInt i=0; i < svgImageMapItemsCnt; i++)
+        {
+            if ( aImageName == ((CSvgImageMapItem*)iSvgImageMapItems[i])->GetImageName() )
+            {
+                lHaveImage = ETrue;
+            }
+        }
+
+        return lHaveImage;
+
+    }
+
+// --------------------------------------------------------------------------
+// CSvgImageMapItem* CSvgImageHashMap::GetImageMapItem( const TDesC& aImageName
+// ---------------------------------------------------------------------------
+CSvgImageMapItem* CSvgImageHashMap::GetImageMapItem( const TDesC& aImageName )
+{
+	TInt svgImageMapItemsCnt = iSvgImageMapItems.Count();
+	for ( TInt i = 0; i < svgImageMapItemsCnt; i++ )
+            {
+            CSvgImageMapItem* lImageMap = (CSvgImageMapItem*)iSvgImageMapItems[i];
+
+			TInt result = aImageName.Compare( lImageMap->GetImageName() );
+
+            if ( result == 0 )
+                {
+					return lImageMap;
+				}
+			}
+
+	return NULL;
+}
+
+// --------------------------------------------------------------------------
+// TBool CSvgDocumentImpl::RemoveReferenceFromImageL( const TDesC& aImageName )
+// returns True if there aren't any left
+// returns False if there are references to that image left
+// ---------------------------------------------------------------------------
+TBool CSvgImageHashMap::RemoveReferenceFromImageL( const TDesC& aImageName )
+    {
+
+		CSvgImageMapItem* lImageMapItem = GetImageMapItem( aImageName );
+
+		if (lImageMapItem != NULL)
+		{
+			//we have this lImageMapElement
+			TInt aReferenceCount = lImageMapItem->DecrementReferenceCount();
+
+			if (aReferenceCount <= 0)
+			{
+				//no more references to this image remove it from the map
+				iSvgImageMapItems.Remove(iSvgImageMapItems.Find(lImageMapItem));
+				delete lImageMapItem;
+				return ETrue;
+			}
+		}
+
+		return EFalse;
+    }
+
+// --------------------------------------------------------------------------
+// CFbsBitmap* CSvgDocumentImpl::GetImagePtr( const TDesC& aImageName )
+// ---------------------------------------------------------------------------
+CFbsBitmap* CSvgImageHashMap::GetImagePtr( const TDesC& aImageName )
+    {
+
+    CSvgImageMapItem* lImageMapItem = GetImageMapItem( aImageName );
+
+    if (lImageMapItem)
+    	{
+    	return (lImageMapItem->GetImagePtr());
+    	}
+
+    	return NULL;
+
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageMapItem* CSvgImageMapItem::NewL()
+    {
+    CSvgImageMapItem*   self    = new ( ELeave ) CSvgImageMapItem;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+
+    return self;
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageMapItem* CSvgImageMapItem::NewLC()
+    {
+    CSvgImageMapItem*   self    = new ( ELeave ) CSvgImageMapItem;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+
+    return self;
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+void CSvgImageMapItem::ConstructL()
+    {
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageMapItem::CSvgImageMapItem(): iImageDecodingStatus(EFalse)
+
+    {
+    }
+
+// ==========================================================================
+// Need method description
+// ==========================================================================
+CSvgImageMapItem::~CSvgImageMapItem()
+    {
+    	if (iImageName->Length())
+    	{
+    		//delete the xlink-href (base64 image data
+    		delete iImageName;
+    		iImageName = NULL;
+    	}
+    	/*if (iImagePtr)
+    	{
+    		//delete the bitmap
+    		delete iImagePtr;
+    	}*/
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+CFbsBitmap* CSvgImageMapItem::GetImagePtr()
+    {
+    return iImagePtr;
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+const TDesC& CSvgImageMapItem::GetImageName()
+    {
+    return ( const TDesC & ) *iImageName;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgImageMapItem::SetImagePtr( CFbsBitmap* aImagePtr )
+    {
+    iImagePtr = aImagePtr;
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+void CSvgImageMapItem::CopyImageNameL( const TDesC& aImageName )
+    {
+    iImageName = aImageName.AllocL();
+    }
+
+//----------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------
+void CSvgImageMapItem::SetImageDecodingStatus( TBool aThisImageIsDecoding )
+	{
+	iImageDecodingStatus = aThisImageIsDecoding;
+	}
+
+//----------------------------------------------------------------------
+//
+//----------------------------------------------------------------------
+TBool CSvgImageMapItem::GetImageDecodingStatus( )
+	{
+	return iImageDecodingStatus;
+	}
+
+//-----------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------
+TInt CSvgImageMapItem::IncrementReferenceCount( )
+	{
+	iImageReferenceCount++;
+	return iImageReferenceCount;
+	}
+
+//-----------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------
+TInt CSvgImageMapItem::DecrementReferenceCount()
+	{
+	iImageReferenceCount--;
+	return iImageReferenceCount;
+	}
+
+