--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/emailui/src/FSAsyncTextFormatter.cpp	Tue May 25 12:23:16 2010 +0300
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Symbian Foundation License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Definition of asynchronous text formatter.
+*
+*/
+
+#include "emailtrace.h"
+#include "FSAsyncTextFormatter.h"
+#include <FRMTLAY.H>
+#include <e32base.h>
+
+const TUint KCharsFormattedPerRun = 2000;
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::CFSAsyncTextFormatter
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+CFSAsyncTextFormatter::CFSAsyncTextFormatter() : CActive( EPriorityLow )
+    {
+    FUNC_LOG;
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::~CFSAsyncTextFormatter
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CFSAsyncTextFormatter::~CFSAsyncTextFormatter()
+    {
+    FUNC_LOG;
+    Cancel();
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CFSAsyncTextFormatter* CFSAsyncTextFormatter::NewL()
+    {
+    FUNC_LOG;
+    CFSAsyncTextFormatter* self = new (ELeave) CFSAsyncTextFormatter();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------
+//
+void CFSAsyncTextFormatter::ConstructL()
+    {
+    FUNC_LOG;
+    iCurrentDocPos = 0;
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::FormatAll
+// Starts formatting process.
+// ---------------------------------------------------------------------------
+//
+void CFSAsyncTextFormatter::StartFormatting( CTextLayout* aTextLayout, 
+        MAsyncTextFormatterObserver* aObserver )
+    {
+    FUNC_LOG;
+    iTextLayout = aTextLayout;
+    iObserver = aObserver;
+    iCurrentDocPos = 0;
+    
+    if ( !IsActive() )
+        {
+        TRequestStatus * status = &iStatus;
+        User::RequestComplete(status, 0);
+        SetActive();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::RunL
+// Handles an active object's request completion event.
+// ---------------------------------------------------------------------------
+//
+void CFSAsyncTextFormatter::RunL()
+    {
+    FUNC_LOG;
+    
+    if ( iCurrentDocPos < iTextLayout->DocumentLength() )
+        {
+        iCurrentDocPos += KCharsFormattedPerRun;
+        if ( iCurrentDocPos > iTextLayout->DocumentLength() )
+            {
+            iCurrentDocPos = iTextLayout->DocumentLength();
+            }
+        iTextLayout->ExtendFormattingToCoverPosL( iCurrentDocPos );
+        
+        // run again
+        TRequestStatus* status = &iStatus;
+        User::RequestComplete( status, KErrNone );
+        SetActive();
+        }
+    else
+        {
+        if ( iObserver )
+            {
+            iObserver->FormatAllTextComplete();
+            }
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CFSAsyncTextFormatter::DoCancel
+// Implements cancellation of an outstanding request.
+// ---------------------------------------------------------------------------
+//
+void CFSAsyncTextFormatter::DoCancel()
+    {
+    FUNC_LOG;
+    if ( IsActive() && iObserver )
+        {
+        iObserver->FormatAllTextCancelled();
+        }
+    }