idlehomescreen/xmluirendering/dom/src/xndomstringpool.cpp
changeset 0 f72a12da539e
child 2 08c6ee43b396
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/dom/src/xndomstringpool.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,215 @@
+/*
+* Copyright (c) 2005,2006 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:  Represent string pool for dom strings
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "xndomstringpool.h"
+
+
+// ============================ LOCAL FUNCTIONS ================================
+
+// ============================ MEMBER FUNCTIONS ===============================
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::CXnDomStringPool
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CXnDomStringPool::CXnDomStringPool()
+    {
+    iStringPoolOffsetCurrent = iStringPoolOffsetNext = 0;
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CXnDomStringPool::ConstructL()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CXnDomStringPool* CXnDomStringPool::NewL()
+    {
+    CXnDomStringPool* self = new( ELeave ) CXnDomStringPool;
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(self);
+
+    return self;
+    }    
+
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::NewL
+// Two-phased stream constructor.
+// -----------------------------------------------------------------------------
+//
+CXnDomStringPool* CXnDomStringPool::NewL( RReadStream& aStream )
+    {
+    CXnDomStringPool* self = new( ELeave ) CXnDomStringPool;
+    CleanupStack::PushL( self );
+    aStream >> *self;
+    CleanupStack::Pop(self);
+
+    return self;
+    }    
+    
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::~CXnDomStringPool
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CXnDomStringPool::~CXnDomStringPool()
+    {
+    iStringPool.ResetAndDestroy();
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::CloneL
+// -----------------------------------------------------------------------------
+//
+CXnDomStringPool* CXnDomStringPool::CloneL()
+    {
+    CXnDomStringPool* clone = CXnDomStringPool::NewL();
+    CleanupStack::PushL( clone );
+    
+    TInt count( iStringPool.Count() );
+    for ( TInt i=0; i<count; i++ )
+        {
+        HBufC8* tmp = iStringPool[i]->Des().AllocLC();
+        clone->iStringPool.AppendL( tmp );
+        CleanupStack::Pop( tmp );
+        }
+    CleanupStack::Pop( clone );
+    return clone;
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomNode::AddStringL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CXnDomStringPool::AddStringL( const TDesC8& aString )
+    {
+    TBool found( EFalse );
+    TInt index( 0 );
+     
+    TInt count( iStringPool.Count() );
+    for (; index < count && !found;  )
+        {
+        if ( iStringPool[ index ]->Des().Compare( aString ) == 0 )
+            {
+            found = ETrue;
+            }
+        else
+            {
+            index++;
+            }    
+        }
+    if ( !found )
+        {
+        HBufC8* tmp = aString.AllocLC();
+        iStringPool.AppendL( tmp );
+        CleanupStack::Pop( tmp );
+        index = iStringPool.Count()-1;    //Last item
+        iStringPoolOffsetNext++;
+        }
+    return index;
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomNode::String
+// -----------------------------------------------------------------------------
+//
+const TDesC8& CXnDomStringPool::String( const TInt aStringRef )
+    {
+    return (*iStringPool[ aStringRef ]);
+    }
+        
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::Size
+// -----------------------------------------------------------------------------
+//
+TInt CXnDomStringPool::Size() const
+    {
+    TInt size( 0 );
+    
+    TInt count( iStringPool.Count() );
+    for ( TInt i=0; i<count; i++ )
+        {
+        size += sizeof(TInt16);     //Length
+        size++;                     //HBufC control mark
+        size++;                     //HBufC control mark
+        size += iStringPool[i]->Size();  //Buffer sixe in bytes     
+        }
+    return size;    
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::ExternalizeL
+// -----------------------------------------------------------------------------
+//
+void CXnDomStringPool::ExternalizeL( RWriteStream& aStream ) const
+    {
+    TInt count( iStringPool.Count() );
+    aStream.WriteInt16L( count );
+    
+    for ( TInt i=0; i<count; i++ )
+        {
+        aStream.WriteInt16L( iStringPool[i]->Length() );
+        aStream << *iStringPool[i];      
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::InternalizeL
+// -----------------------------------------------------------------------------
+//
+void CXnDomStringPool::InternalizeL( RReadStream& aStream )
+    {
+    TInt len(0);
+    TInt16 count ( aStream.ReadInt16L() );
+    
+    iStringPoolOffsetCurrent = iStringPoolOffsetNext;
+    iStringPoolOffsetNext += count;
+
+    for ( TInt i=0; i<count; i++ )
+        {
+        len = aStream.ReadInt16L();
+        HBufC8* tmp = HBufC8::NewLC( aStream, len );
+        iStringPool.AppendL( tmp );
+        CleanupStack::Pop( tmp );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CXnDomStringPool::Offset
+// -----------------------------------------------------------------------------
+//
+TUint CXnDomStringPool::Offset() const
+    {
+    return iStringPoolOffsetCurrent;
+    }
+
+//  End of File