1 /*

     2 * Copyright (c) 2005 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:    LandmarksUi Content File -    Floating point field for CEikMFne

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 

    22 

    23 #ifndef CLmkMfneFloat_H

    24 #define CLmkMfneFloat_H

    25 

    26 //  INCLUDES

    27 #include <eikmfne.h>

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 * CLmkMfneFloat class

    33 * Contain two number editor and one separator.

    34 */

    35 class CLmkMfneFloat : public CEikMfneField

    36     {

    37     public:

    38         virtual ~CLmkMfneFloat();

    39         static CLmkMfneFloat* NewL(

    40             TInt aMaxDigits,

    41             TInt aMaxDecimalDigits);

    42 

    43         TBool SetLimits(

    44             TReal aMinimumValue,

    45             TReal aMaximumValue);

    46 

    47         void GetLimits(

    48             TReal& aMinimumValue,

    49             TReal& aMaximumValue) const;

    50 

    51         void SetValue(TReal aValue);

    52         TReal Value() const;

    53 

    54         void HandleHighlight();

    55 

    56     private:

    57         CLmkMfneFloat(

    58             TInt aMaxDigits,

    59             TInt aMaxDecimalDigits);

    60 

    61         void ConstructL();

    62 

    63     // From CEikMfneField

    64     public:

    65         virtual TInt MaximumWidthInPixels(

    66             const CFont& aFont,

    67             TBool aShrinkToMinimumSize);

    68 

    69         virtual TCoeInputCapabilities InputCapabilities() const;

    70 

    71         virtual TBool IsEditable() const;

    72 

    73         // these functions may only be called if

    74         // IsEditable returns ETrue - all TBool&/TInt& parameters

    75         // in these functions must be first set to EFalse/0 by the caller

    76         virtual THighlightType HighlightType() const;

    77 

    78         virtual void HandleKey(

    79             const CFont& aFont,

    80             const TKeyEvent& aKeyEvent,

    81             TBool aInterpretLeftAndRightAsEarEvents,

    82             TBool& aDataAltered,

    83             TInt& aHighlightIncrement);

    84 

    85         virtual void HandleDeHighlight(

    86             const CFont& aFont,

    87             CEikonEnv& aEikonEnv,

    88             TBool& aDataAltered,

    89             TBool& aError);

    90 

    91     private:

    92         virtual const TDesC& Text() const;

    93 

    94     // New internal methods

    95     private:

    96         TBool   EnsureValueInLimits(TReal aValue);

    97         TInt    MaxNumOfChars() const;

    98 

    99         TBool   IsDecimalSeparatorAllowed(const TDesC& aText) const;

   100         TBool   IsMoreDigitsAllowed(const TDesC& aText) const;

   101 

   102         TReal   ValueFromText(const TDesC& aText) const;

   103         void    TextFromValue(TReal aValue, TDes& aText) const;

   104 

   105     private:

   106         TReal   iMinimumValue;

   107         TReal   iMaximumValue;

   108         TInt    iMaxDigits;

   109         TInt    iMaxDecimalDigits;

   110 

   111         HBufC*  iText;

   112 

   113         TBool   iIsBeingEditedWithCursor;

   114         TBool   iFocus;

   115     };

   116 

   117 #endif

   118 

   119 // end of File