homescreenpluginsrv/hspsdom/src/hspsdomstringpool.cpp
changeset 0 79c6a41cd166
child 4 1a2a00e78665
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenpluginsrv/hspsdom/src/hspsdomstringpool.cpp	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,212 @@
+/*
+* 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    "hspsdomstringpool.h"
+
+
+// ============================ LOCAL FUNCTIONS ================================
+// -----------------------------------------------------------------------------
+// Adds string to string pool. If string doesn't appear yet, it is added to 
+// the string pool and index to pool is returned. 
+// @param aString String to add 
+// @param aArray A pool which holds strings
+// @return Index to string pool 
+// -----------------------------------------------------------------------------
+//
+LOCAL_C TInt AddToStringPoolL( const TDesC8& aString, RPointerArray<HBufC8>& aArray )
+    {
+    TBool found( EFalse );
+    TInt index( 0 );
+     
+    TInt count( aArray.Count() );
+    for (; index < count && !found;  )
+        {
+        if ( aArray[ index ]->Des().Compare( aString ) == 0 )
+            {
+            found = ETrue;
+            }
+        else
+            {
+            index++;
+            }    
+        }
+    if ( !found )
+        {
+        HBufC8* tmp = aString.AllocLC();
+        aArray.AppendL( tmp );
+        CleanupStack::Pop( tmp );
+        index = aArray.Count()-1;    //Last item
+        }
+    return index;
+    }
+// ============================ MEMBER FUNCTIONS ===============================
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::ChspsDomStringPool
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+ChspsDomStringPool::ChspsDomStringPool()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void ChspsDomStringPool::ConstructL()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+ChspsDomStringPool* ChspsDomStringPool::NewL()
+    {
+    ChspsDomStringPool* self = new( ELeave ) ChspsDomStringPool;
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(self);
+
+    return self;
+    }    
+
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::NewL
+// Two-phased stream constructor.
+// -----------------------------------------------------------------------------
+//
+ChspsDomStringPool* ChspsDomStringPool::NewL( RReadStream& aStream )
+    {
+    ChspsDomStringPool* self = new( ELeave ) ChspsDomStringPool;
+    CleanupStack::PushL( self );
+    aStream >> *self;
+    CleanupStack::Pop(self);
+
+    return self;
+    }    
+    
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::~ChspsDomStringPool
+// Destructor
+// -----------------------------------------------------------------------------
+//
+ChspsDomStringPool::~ChspsDomStringPool()
+    {
+    iStringPool.ResetAndDestroy();
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::CloneL
+// -----------------------------------------------------------------------------
+//
+ChspsDomStringPool* ChspsDomStringPool::CloneL()
+    {
+    ChspsDomStringPool* clone = ChspsDomStringPool::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;
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomNode::AddStringL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt ChspsDomStringPool::AddStringL( const TDesC8& aString )
+    {
+    return AddToStringPoolL( aString, iStringPool );
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomNode::String
+// -----------------------------------------------------------------------------
+//
+const TDesC8& ChspsDomStringPool::String( const TInt aStringRef )
+    {
+    return (*iStringPool[ aStringRef ]);
+    }
+        
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::Size
+// -----------------------------------------------------------------------------
+//
+TInt ChspsDomStringPool::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;    
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::ExternalizeL
+// -----------------------------------------------------------------------------
+//
+void ChspsDomStringPool::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];      
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// ChspsDomStringPool::InternalizeL
+// -----------------------------------------------------------------------------
+//
+void ChspsDomStringPool::InternalizeL( RReadStream& aStream )
+    {
+    TInt len(0);
+    TInt16 count ( aStream.ReadInt16L() );
+    
+    for ( TInt i=0; i<count; i++ )
+        {
+        len = aStream.ReadInt16L();
+        HBufC8* tmp = HBufC8::NewLC( aStream, len );
+        iStringPool.AppendL( tmp );
+        CleanupStack::Pop( tmp );
+        }
+   
+    }
+//  End of File