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1 /* |
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2 * Copyright (c) 2006 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: Project file for EnhancedMediaClient Utility |
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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 #include "BalanceEffectImpl.h" |
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20 // For KUidInterfaceMMFAudioPlayDevice |
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21 #include <mmf/common/mmfstandardcustomcommands.h> |
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22 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS |
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23 #include <mmf/common/mmfstandardcustomcommandsenums.h> |
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24 #endif |
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25 // For TMMFAudioConfig |
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26 #include <mmf/common/mmfaudio.h> |
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27 // For TMMFMessageDestinationPckg |
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28 #include <mmf/common/mmfcontrollerframework.h> |
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29 |
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30 using namespace multimedia; |
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31 |
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32 CBalanceEffect::CBalanceEffect() |
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33 : iBalance(KMMFBalanceCenter) |
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34 { |
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35 // No Impl |
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36 } |
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37 |
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38 CBalanceEffect::~CBalanceEffect() |
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39 { |
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40 // No Impl |
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41 } |
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42 |
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43 TInt CBalanceEffect::PostConstructor() |
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44 { |
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45 TRAPD( status, CEffectControlBase::ConstructL( KUidInterfaceMMFAudioPlayDevice ) ); |
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46 return status; |
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47 } |
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48 |
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49 // From MControl begins |
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50 TInt CBalanceEffect::AddObserver( MControlObserver& /*aObserver*/ ) |
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51 { |
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52 return KErrNotSupported; |
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53 } |
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54 |
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55 TInt CBalanceEffect::RemoveObserver( MControlObserver& /*aObserver*/ ) |
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56 { |
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57 return KErrNotSupported; |
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58 } |
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59 |
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60 TUid CBalanceEffect::Type() |
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61 { |
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62 return KBalanceEffectControl; |
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63 } |
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64 |
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65 TControlType CBalanceEffect::ControlType() |
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66 { |
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67 return EEffectControl; |
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68 } |
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69 // From MControl ends |
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70 |
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71 // From MEffectControl begins |
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72 TInt CBalanceEffect::Apply() |
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73 { |
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74 iEnabled = true; |
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75 return DoApply(); |
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76 } |
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77 |
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78 // From MEffectControl ends |
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79 |
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80 // From MBalanceEffect begins |
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81 |
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82 TInt CBalanceEffect::DoApply() |
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83 { |
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84 TInt error(KErrNone); |
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85 TMMFMessageDestination msgDest( KUidInterfaceMMFAudioPlayDevice ); |
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86 TMMFMessageDestinationPckg msgDestPckg( msgDest ); |
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87 TPckgBuf<TMMFAudioConfig> configPackage; |
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88 configPackage().iBalance = iBalance; |
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89 error = CEffectControlBase::CustomCommandSync( msgDestPckg, |
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90 EMMFAudioPlayDeviceSetBalance, |
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91 configPackage, |
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92 KNullDesC8); |
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93 return error; |
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94 } |
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95 |
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96 // From MBalanceEffectt begins |
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97 TInt CBalanceEffect::SetBalance( TInt& aBalance ) |
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98 { |
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99 iBalance = aBalance; |
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100 return KErrNone; |
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101 } |
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102 |
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103 TInt CBalanceEffect::GetBalance( TInt& aBalance ) |
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104 { |
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105 aBalance = iBalance; |
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106 return KErrNone; |
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107 } |
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108 |
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109 // From CEffectControlerBase begins |
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110 |
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111 void CBalanceEffect::Event ( TEffectControlEvent aEvent) |
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112 { |
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113 TMMFMessageDestination msgDest ( KUidInterfaceMMFAudioPlayDevice ); |
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114 TMMFMessageDestinationPckg msgDestPckg ( msgDest ); |
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115 TPckgBuf<TMMFAudioConfig> configPackage; |
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116 // Controller loaded with ECIBuilderCreated |
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117 if ( aEvent == ECIBuilderCreated ) |
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118 { |
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119 if ( iBalance == KMMFBalanceCenter) |
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120 { |
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121 TInt error = CEffectControlBase::CustomCommandSync(msgDestPckg, |
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122 EMMFAudioPlayDeviceGetBalance, |
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123 KNullDesC8, |
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124 KNullDesC8, |
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125 configPackage); |
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126 if ( !error ) |
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127 { |
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128 iBalance = configPackage().iBalance; |
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129 } |
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130 } |
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131 } |
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132 if ( iEnabled && iBalance != KMMFBalanceCenter) |
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133 { |
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134 DoApply(); |
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135 } |
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136 } |
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137 |
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138 // From CEffectControlBase ends |
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139 |
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140 // End of file |