/*

* Copyright (c) 2006-2007 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:  MnrpUtils class implementation

*

*/

#include <e32base.h>

#include <e32math.h>

#include <lbsposition.h>

#include "mnrputils.h"

_LIT( KNan, "<n/a>" );

_LIT( KNeg, "<neg>" );

_LIT( KOutOfBounds, "<inv>" );

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------

//

EXPORT_C void MnrpUtils::CoordinateToString(

    TReal aCoord,

    TDes& aStr,

    TBool aFull,

    TBool aMillis )

    {

    const TChar KDegreeMark = 0xB0;

    const TChar KMinuteMark = 0x27;

    const TChar KSecondMark = 0x22;

    const TChar KMilliSecondMark = 0x2E;

    const TChar KMinus = '-';

    const TChar KPlus = '+';

    _LIT( KCoordFormatFull, "%c%d%c%02d%c%02d%c" );

    _LIT( KCoordFormatPartMseconds, "%c%03d" );

    if ( Math::IsNaN( aCoord ) )

        {

        aStr.Copy( KNan );

        }

    else if ( Abs( aCoord ) > 360 )

        {

        aStr.Copy( KOutOfBounds );

        }

    else

        {

        TBool negative = aCoord < 0;

        aCoord = Abs( aCoord );

        TInt degrees = TInt( aCoord );

        aCoord = ( aCoord - degrees ) * 60;

        TInt minutes = TInt( aCoord );

        aCoord = ( aCoord - minutes ) * 60;

        TInt seconds = TInt( aCoord );

        aCoord = ( aCoord - seconds ) * 100;

        TInt mseconds = TInt( aCoord );

        TChar sign = negative ? KMinus : KPlus;

        if ( aFull )

            {

            aStr.Format( KCoordFormatFull,

                            TUint( sign ), degrees, TUint( KDegreeMark ),

                            minutes, TUint( KMinuteMark ),

                            seconds, TUint( KSecondMark ) );

            if ( aMillis )

                {

                aStr.AppendFormat( KCoordFormatPartMseconds, TUint( KMilliSecondMark ), mseconds );

                }

            }

        else

            {

            aStr.Zero();

            if ( degrees )

                {

                aStr.AppendNum( degrees );

                aStr.Append( KDegreeMark );

                }

            if ( minutes )

                {

                aStr.AppendNum( minutes );

                aStr.Append( KMinuteMark );

                }

            if ( seconds )

                {

                aStr.AppendNum( seconds );

                aStr.Append( KSecondMark );

                }

            if ( mseconds && aMillis )

                {

                if ( !seconds )

                    {

                    aStr.AppendNum( 0 );

                    aStr.Append( KSecondMark );

                    }

                aStr.AppendFormat( KCoordFormatPartMseconds, TUint( KMilliSecondMark ), mseconds );

                }

            if ( !aStr.Length() )

                {

                aStr.AppendNum( degrees );

                aStr.Append( KDegreeMark );

                }

            }

        }

    }

// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------

//

EXPORT_C void MnrpUtils::DistanceToString( TReal aDistance, TDes& aStr )

    {

    _LIT( KSmall, "< 1 m" );

    _LIT( KMeters, "%d m" );

    _LIT( KKiloMeters, "%.1f Km" );

    _LIT( KThousandsKiloMeters, "%.1f tKm" );

    const TInt KMeter = 1;

    const TInt KKilometer = KMeter * 1000;

    const TInt KThousandKilometer = KKilometer * 1000;

    if ( Math::IsNaN( aDistance ) )

        {

        aStr.Copy( KNan );

        }

    else if ( aDistance < 0 )

        {

        aStr.Copy( KNeg );

        }

    else if ( aDistance < KMeter )

        {

        aStr.Copy( KSmall );

        }

    else if ( aDistance < KKilometer )

        {

        aStr.Format( KMeters, TInt( aDistance ) );

        }

    else if ( aDistance < KThousandKilometer )

        {

        aStr.Format( KKiloMeters, aDistance / KKilometer );

        }

    else

        {

        aStr.Format( KThousandsKiloMeters, aDistance / KThousandKilometer );

        }

    }

// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------

//

EXPORT_C void MnrpUtils::SpeedToString( TReal aSpeed, TDes& aStr )

    {

    _LIT( KPerSecond, "/s" );

    if ( Math::IsNaN( aSpeed ) )

        {

        aStr.Copy( KNan );

        }

    else if ( aSpeed < 0 )

        {

        aStr.Copy( KNeg );

        }

    else

        {

        DistanceToString( aSpeed, aStr );

        aStr.Append( KPerSecond );

        }

    }

// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------

//

EXPORT_C void MnrpUtils::AngleToString( TReal aAngle, TDes& aStr )

    {

    const TChar KMinus = '-';

    const TChar KPlus = '+';

    _LIT( KAngleFormat, "%S%c%.1f\xB0 /  %.1f\xB0" );

    _LIT( KNorth, "N" );

    _LIT( KSouth, "S" );

    _LIT( KWest, "W" );

    _LIT( KEast, "E" );

    TPtrC side;

    TReal angle;

    if ( Math::IsNaN( aAngle ) )

        {

        aStr.Copy( KNan );

        }

    else if ( aAngle > 360 )

        {

        aStr.Copy( KOutOfBounds );

        }

    else

        {

        if ( aAngle > 315 )

            {

            side.Set( KNorth );

            angle = aAngle - 360;

            }

        else if ( aAngle > 225 )

            {

            side.Set( KWest );

            angle = aAngle - 270;

            }

        else if ( aAngle > 135 )

            {

            side.Set( KSouth );

            angle = aAngle - 180;

            }

        else if ( aAngle > 45 )

            {

            side.Set( KEast );

            angle = aAngle - 90;

            }

        else // aAngle <= 45

            {

            side.Set( KNorth );

            angle = aAngle;

            }

        TChar sign = ( angle >= 0 ) ? KPlus : KMinus;

        aStr.Format( KAngleFormat, &side, TUint( sign ), Abs( angle ), aAngle );

        }

    }

// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------

//

EXPORT_C HBufC* MnrpUtils::PrintableStringLC( const TDesC& aStr )

    {

    HBufC* buf = aStr.AllocLC();

    TPtr string( buf->Des() );

    for ( TInt i = 0; i < string.Length(); i++ )

        {

        if ( !TChar( string[i] ).IsPrint() )

            {

            string[i] = ' ';

            }

        }

    return buf;

    }