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1 /* |
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2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0"" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: CMSPUtil Implementation |
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15 * |
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16 * |
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17 */ |
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18 |
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19 |
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20 // INCLUDE FILES |
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21 #include <e32std.h> |
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22 #include "MSPPanic.hrh" |
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23 #include "msputil.h" |
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24 |
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25 // --------------------------------------------------------------------------- |
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26 |
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27 CMSPUtil* CMSPUtil::NewL( CDesCArrayFlat* aArray ) |
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28 { |
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29 __ASSERT_DEBUG( aArray, |
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30 User::Panic( KPanicMSP, EInvalidParameter ) ); |
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31 CMSPUtil* self = new( ELeave ) CMSPUtil; |
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32 self->iUnitArray = aArray; |
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33 return self; |
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34 } |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 |
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38 CMSPUtil::~CMSPUtil( ) |
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39 { |
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40 if( iUnitArray ) |
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41 { |
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42 iUnitArray->Delete( 0, iUnitArray->Count( ) ); |
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43 } |
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44 delete iUnitArray; |
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45 } |
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46 |
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47 // --------------------------------------------------------------------------- |
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48 |
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49 CMSPUtil::CMSPUtil( ): iUnitArray( NULL ) |
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50 { |
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51 } |
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52 |
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53 // --------------------------------------------------------------------------- |
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54 |
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55 void CMSPUtil::SolveUnitAndSize( TInt64& aNumber, TInt& aUnit ) |
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56 { |
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57 TInt count( iUnitArray->Count( ) ); |
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58 const TInt KMaxDigits = 10000; |
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59 const TInt KKiloByte = 1024; |
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60 const TInt KRoundLimit = 512; |
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61 const TInt KShiftValue = 10; |
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62 aUnit = EByte; |
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63 |
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64 // If number is 1024 or more, it can be divided and unit changed |
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65 while( aNumber >= 1024 && (aUnit + 1) < count ) |
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66 { |
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67 // Show kilobytes and megabytes with 4 digits |
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68 if( ( aUnit == EKiloByte || aUnit == EMegaByte ) && aNumber < KMaxDigits ) |
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69 { |
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70 break; |
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71 } |
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72 // Check how the rounding should be done |
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73 if( aNumber % KKiloByte < KRoundLimit ) |
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74 { |
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75 // Round downwards |
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76 aNumber >>= KShiftValue; // 2^10 = 1024 |
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77 } |
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78 else |
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79 { |
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80 aNumber = ( aNumber >> KShiftValue ) + 1; |
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81 } |
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82 aUnit++; // Next enum |
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83 } |
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84 } |
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85 |
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86 |
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87 // --------------------------------------------------------------------------- |
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88 |
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89 EXPORT_C TPtrC CMSPUtil::SolveUnitAndSize( TInt64& aNumber ) |
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90 { |
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91 TInt unitType( EByte ); |
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92 SolveUnitAndSize( aNumber, unitType ); |
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93 if( unitType >= iUnitArray->Count() ) |
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94 { |
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95 if( iUnitArray->Count() ) |
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96 { |
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97 unitType = iUnitArray->Count() - 1; |
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98 } |
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99 else |
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100 { |
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101 unitType = 0; |
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102 } |
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103 } |
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104 |
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105 return ( *iUnitArray )[ unitType ]; |
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106 } |
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107 |
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108 // End of File |
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109 |