diff -r 000000000000 -r e686773b3f54 phonebookengines/VirtualPhonebook/VPbkEngUtils/src/TFixedDigitString.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/phonebookengines/VirtualPhonebook/VPbkEngUtils/src/TFixedDigitString.cpp Tue Feb 02 10:12:17 2010 +0200 @@ -0,0 +1,122 @@ +/* +* Copyright (c) 2005-2007 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: Fixed digit string handler class +* +*/ + + +// INCLUDES +#include "TFixedDigitString.h" +#include "Error.h" + +namespace VPbkEngUtils { + +TFixedDigitString::TFixedDigitString() : + // Init all digits to KNaNBCD + iBcdDigits(~TUint(0)) + { + } + +TInt TFixedDigitString::Length() const + { + TUint mask = KNaNBCD; + TInt length = 0; + while ( (length < KMaxDigits) && ((iBcdDigits & mask) ^ mask)) + { + mask <<= KBitsPerDigit; + ++length; + } + return length; + } + +TBool TFixedDigitString::IsEmpty() const + { + return (iBcdDigits == ~TUint(0)); + } + +TInt TFixedDigitString::operator[](TInt aIndex) const + { + __ASSERT_ALWAYS( aIndex >= 0 && aIndex < KMaxDigits, + Error::Panic(Error::EPanicInvalidIndex) ); + + const TInt shift = aIndex * KBitsPerDigit; + // Extract the digit from iBcdDigits + const TUint result = (iBcdDigits & (0xf << shift)) >> shift; + if (result != KNaNBCD) + { + return TInt(result); + } + else + { + // aIndex >= Length() + Error::Panic(Error::EPanicInvalidIndex); + return KNaN; + } + } + +#ifndef NDEBUG +// Checking version of Compare for debug builds +TBool TFixedDigitString::Compare(const TFixedDigitString& aOther, TInt aNumDigits) const + { + __ASSERT_DEBUG( aNumDigits >= 0 && aNumDigits <= KMaxDigits, + Error::Panic(Error::EPanicInvalidValue) ); + return DoCompare(aOther, aNumDigits); + } +#endif + +void TFixedDigitString::Reset() + { + // Reset all digits to KNaNBCD + iBcdDigits = ~TUint(0); + } + + +void TFixedDigitString::EncodeDigits(TPtrC& aDigitsText) + { + // Reset all digits to zero + iBcdDigits = 0; + + // Init loop counters + TInt shift = 0; + TInt textPos = 0; + const TInt textLen = aDigitsText.Length(); + + while (textPos < textLen && shift < KMaxBits) + { + const TInt numVal = TChar(aDigitsText[textPos++]).GetNumericValue(); + if (numVal >= 0 && numVal <= 9) + { + // Encode the digit to current position + iBcdDigits |= TUint(numVal) << shift; + shift += KBitsPerDigit; + } + } + + // Set unused digits to KNanBCD + if (shift < KMaxBits) + { + iBcdDigits |= ~TUint(0) << shift; + } + + // Adjust aDigitsText to point to the first character that was not + // considered for encoding + aDigitsText.Set(aDigitsText.Mid(textPos)); + } + + +} // namespace VPbkEngUtils + +//End of file + +