mpx/viewframework/viewutility/src/mpxviewutilityhelper.cpp
changeset 0 a2952bb97e68
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpx/viewframework/viewutility/src/mpxviewutilityhelper.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 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:  Implementation of view utility helper
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "mpxviewutilityhelper.h"
+
+// CONSTANTS
+_LIT8( KMPXDelimiter8, ";" );
+_LIT8( KMPXHexMarker8, "0x" );
+
+_LIT( KMPXDelimiter, ";" );
+_LIT( KMPXHexMarker, "0x" );
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Extracts number from data. ( 8 bit )
+// ---------------------------------------------------------------------------
+//
+TInt CMPXViewUtilityHelper::ExtractNum(
+    const TDesC8& aData,
+    TInt& aNextPos,
+    TInt& aResult )
+    {
+    if ( aNextPos < 0 || aNextPos > aData.Length() )
+        {
+        aNextPos = KErrNotFound;
+        return KErrArgument;
+        }
+
+    TInt err( KErrNone );
+    TPtrC8 string( aData.Mid( aNextPos ) );
+
+    if ( string.Length() )
+        {
+        TInt delimiterPos = string.Find( KMPXDelimiter8 );
+        if ( KErrNotFound != delimiterPos )
+            {
+            string.Set( aData.Mid( aNextPos, delimiterPos ) );
+            aNextPos += delimiterPos + KMPXDelimiter8().Length();
+            if ( aNextPos >= aData.Length() )
+                {
+                // Reach the end of string
+                aNextPos = KErrNotFound;
+                }
+            }
+        else
+            {
+            // Reach the end of string
+            aNextPos = KErrNotFound;
+            }
+
+        // Convert string to integer
+        TInt hexMarkerPos = string.Find( KMPXHexMarker8 );
+        if ( KErrNotFound != hexMarkerPos )
+            {
+            TUint numHex( 0 );
+            TLex8 lexHex( string.Mid( KMPXHexMarker8().Length() ) );
+            err = lexHex.Val( numHex, EHex );
+            aResult = numHex;
+            }
+        else
+            {
+            TLex8 lexDec( string );
+            err = lexDec.Val( aResult );
+            }
+        }
+    else
+        {
+        aNextPos = KErrNotFound;
+        err = KErrNotFound;
+        }
+
+    return err;
+    }
+
+// ---------------------------------------------------------------------------
+// Extracts number from data. ( generic )
+// ---------------------------------------------------------------------------
+//
+TInt CMPXViewUtilityHelper::ExtractNum(
+    const TDesC& aData,
+    TInt& aNextPos,
+    TInt& aResult )
+    {
+    if ( aNextPos < 0 || aNextPos > aData.Length() )
+        {
+        aNextPos = KErrNotFound;
+        return KErrGeneral;
+        }
+
+    TInt err( KErrNone );
+    TPtrC string( aData.Mid( aNextPos ) );
+
+    if ( string.Length() )
+        {
+        TInt delimiterPos = string.Find( KMPXDelimiter );
+        if ( KErrNotFound != delimiterPos )
+            {
+            string.Set( aData.Mid( aNextPos, delimiterPos ) );
+            aNextPos += delimiterPos + KMPXDelimiter().Length();
+            if ( aNextPos >= aData.Length() )
+                {
+                // Reach the end of string
+                aNextPos = KErrNotFound;
+                }
+            }
+        else
+            {
+            // Reach the end of string
+            aNextPos = KErrNotFound;
+            }
+
+        // Convert string to integer
+        TInt hexMarkerPos = string.Find( KMPXHexMarker );
+        if ( KErrNotFound != hexMarkerPos )
+            {
+            TUint numHex( 0 );
+            TLex lexHex( string.Mid( KMPXHexMarker().Length() ) );
+            err = lexHex.Val( numHex, EHex );
+            aResult = numHex;
+            }
+        else
+            {
+            TLex lexDec( string );
+            err = lexDec.Val( aResult );
+            }
+        }
+    else
+        {
+        aNextPos = KErrNotFound;
+        err = KErrNotFound;
+        }
+
+    return err;
+    }
+
+//  End of File