1 /*

     2 * Copyright (c) 2004-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 #include <AknQueryDialog.h>

    20 #include <StringLoader.h>

    21 #include <imageprintengine.rsg>

    22 

    23 #include "cfloatcapability.h"

    24 

    25 const TInt KMaxTRealCharNum( 30 );

    26 const TInt KDecimals( 2 );

    27 

    28 // Destructor

    29 CFloatCapability::~CFloatCapability()

    30     { 

    31     }

    32 

    33 // Creates text string for the settings list box

    34 HBufC* CFloatCapability::ListBoxTextL()

    35     {   

    36     const TInt KGranularity( 4 );

    37     TRealFormat format( KMaxTRealCharNum, KDecimals );

    38     TBuf<KMaxTRealCharNum> numStr;

    39     

    40     numStr.Zero();

    41     numStr.AppendNum( iRealValue, format ); 

    42 

    43     CDesCArrayFlat* strings = new ( ELeave ) CDesCArrayFlat( KGranularity );

    44     CleanupStack::PushL( strings );

    45     strings->AppendL( iTitle );

    46     strings->AppendL( numStr );

    47 

    48     HBufC* buf = StringLoader::LoadL( R_QTN_LBOX_FORMAT, *strings ); 

    49     CleanupStack::PopAndDestroy();  // strings

    50     

    51     return buf;

    52     }

    53 

    54 // Displays pop-up list for changing the active TInt value

    55 TBool CFloatCapability::LaunchPopupListL()

    56     {    

    57     TReal aMin = 0;

    58     TReal aMax = TReal( iMaxNumerator )/TReal( iDenominator );

    59 

    60     CAknFloatingPointQueryDialog* dlg = 

    61         CAknFloatingPointQueryDialog::NewL( iRealValue );    

    62     CleanupStack::PushL( dlg );

    63     dlg->SetPromptL( iTitle );

    64     dlg->PrepareLC( R_GENERIC_FLOAT_QUERY_DLG );

    65     CleanupStack::Pop( dlg );

    66     dlg->SetMinimumAndMaximum( aMin, aMax );

    67 	TBool valueChanged = dlg->RunLD();

    68 

    69     if ( valueChanged )

    70         {

    71         iValue = TInt( TReal ( iRealValue / TReal ( iDenominator ) ) );

    72         }

    73 

    74     return valueChanged;

    75     }

    76 

    77 // Clones itself

    78 CBaseCapability* CFloatCapability::CloneL()

    79     {

    80     CFloatCapability* clone = new ( ELeave ) CFloatCapability;    

    81 

    82     clone->iDenominator = iDenominator;

    83     clone->iIndexOnList = iIndexOnList;

    84     clone->iMaxNumerator = iMaxNumerator;

    85     clone->iValue = iValue;

    86     clone->iTitle = iTitle;

    87     clone->iUid = iUid;        

    88     clone->iRealValue = iRealValue;

    89             

    90     return clone;

    91     }

    92 

    93 // Sets the new values and checks the boundaries

    94 TInt CFloatCapability::SetValues( 

    95     TInt aDenom, 

    96     TInt aNumerator, 

    97     TInt aMaxNumerator )

    98     {

    99     TInt err( KErrNone );

   100 

   101     if ( aNumerator > aMaxNumerator )        

   102         {

   103         err = KErrArgument;

   104         }

   105     else

   106         {

   107         iDenominator = aDenom;

   108         iValue = aNumerator;

   109         iMaxNumerator = aMaxNumerator;

   110         if( iDenominator != 0 )

   111             {

   112             iRealValue = TReal( iValue )/TReal( iDenominator );

   113             }        

   114         }

   115 

   116     return err;

   117     }

   118 

   119 // Numerator

   120 TInt CFloatCapability::Numerator() const

   121     {

   122     return iValue;

   123     }

   124 

   125 // Denominator

   126 TInt CFloatCapability::Denominator() const

   127     {

   128     return iDenominator;

   129     }

   130 

   131 //  End of File