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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: Helper class for managing equalizer utility instances |
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15 * (stub version). |
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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 |
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21 // INCLUDE FILES |
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22 #include <mpxplaybackmessage.h> |
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23 #include <mpxmessagegeneraldefs.h> |
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24 #include "mpxequalizerhelper.h" |
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25 #include "mpxlog.h" |
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26 |
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27 // ======== MEMBER FUNCTIONS ======== |
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28 |
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29 // --------------------------------------------------------------------------- |
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30 // C++ default constructor can NOT contain any code, that |
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31 // might leave. |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 CMPXEqualizerHelper::CMPXEqualizerHelper() |
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35 { |
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36 // Do nothing |
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37 } |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // Symbian 2nd phase constructor can leave. |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 void CMPXEqualizerHelper::ConstructL() |
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44 { |
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45 MPX_FUNC("CMPXEqualizerHelper::ConstructL"); |
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46 // Do nothing |
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47 } |
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48 |
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49 // --------------------------------------------------------------------------- |
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50 // Two-phased constructor. |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 CMPXEqualizerHelper* CMPXEqualizerHelper::NewL() |
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54 { |
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55 MPX_FUNC("CMPXEqualizerHelper::NewL"); |
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56 CMPXEqualizerHelper* self = |
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57 new ( ELeave ) CMPXEqualizerHelper(); |
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58 CleanupStack::PushL( self ); |
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59 self->ConstructL(); |
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60 CleanupStack::Pop( self ); |
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61 return self; |
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62 } |
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63 |
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64 // --------------------------------------------------------------------------- |
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65 // Destructor |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 CMPXEqualizerHelper::~CMPXEqualizerHelper() |
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69 { |
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70 // Do nothing |
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71 } |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // Initialize audio equalizer utility for current active playing track. |
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75 // --------------------------------------------------------------------------- |
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76 // |
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77 void CMPXEqualizerHelper::InitializeEqualizerUtilityL() |
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78 { |
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79 MPX_FUNC("CMPXEqualizerHelper::InitializeEqualizerUtilityL"); |
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80 // Do nothing |
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81 } |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // Release audio equalizer utility. |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 void CMPXEqualizerHelper::ReleaseEqualizerUtility() |
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88 { |
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89 MPX_FUNC("CMPXEqualizerHelper::ReleaseEqualizerUtility"); |
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90 // Do nothing |
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91 } |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // Get current preset ID. |
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95 // --------------------------------------------------------------------------- |
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96 // |
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97 TInt CMPXEqualizerHelper::GetPresetId( TInt& /* aPresetId */ ) |
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98 { |
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99 MPX_FUNC("CMPXEqualizerHelper::GetPresetId"); |
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100 return KErrNotFound; |
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101 } |
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102 |
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103 // --------------------------------------------------------------------------- |
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104 // Initialize secondary audio equalizer utility for situations when the |
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105 // engine cannot provide one. |
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106 // --------------------------------------------------------------------------- |
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107 // |
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108 void CMPXEqualizerHelper::InitializeBackupEqualizerUtilityL() |
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109 { |
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110 MPX_FUNC("CMPXEqualizerHelper::InitializeBackupEqualizerUtilityL"); |
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111 // Do nothing |
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112 } |
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113 |
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114 // --------------------------------------------------------------------------- |
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115 // Create secondary audio equalizer utility based on latest preset settings. |
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116 // --------------------------------------------------------------------------- |
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117 // |
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118 void CMPXEqualizerHelper::CreateBackupEqualizerUtility() |
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119 { |
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120 MPX_FUNC("CMPXEqualizerHelper::CreateBackupEqualizerUtility"); |
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121 // Do nothing |
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122 } |
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123 |
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124 // --------------------------------------------------------------------------- |
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125 // Setup active equalizer utility for equalizer dialog. |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 void CMPXEqualizerHelper::SetupActiveEqualizerUtility() |
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129 { |
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130 MPX_FUNC("CMPXEqualizerHelper::SetupActiveEqualizerUtility"); |
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131 // Do nothing |
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132 } |
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133 |
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134 // --------------------------------------------------------------------------- |
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135 // Launch equalizer dialog. |
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136 // --------------------------------------------------------------------------- |
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137 // |
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138 void CMPXEqualizerHelper::DoLaunchEqualizerDialogL() |
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139 { |
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140 MPX_FUNC("CMPXEqualizerHelper::DoLaunchEqualizerDialogL"); |
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141 // Do nothing |
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142 } |
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143 |
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144 // --------------------------------------------------------------------------- |
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145 // Handle playback message. |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 void CMPXEqualizerHelper::DoHandlePlaybackMessageL( |
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149 const CMPXMessage& aMessage ) |
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150 { |
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151 MPX_FUNC("CMPXEqualizerHelper::DoHandlePlaybackMessageL"); |
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152 TMPXMessageId id( aMessage.ValueTObjectL<TMPXMessageId>( KMPXMessageGeneralId ) ); |
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153 if ( KMPXMessageGeneral == id ) |
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154 { |
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155 switch ( aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralEvent ) ) |
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156 { |
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157 case TMPXPlaybackMessage::EStateChanged: |
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158 { |
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159 TMPXPlaybackState state( |
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160 static_cast<TMPXPlaybackState>( |
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161 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralType ) ) ); |
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162 DoHandleStateChangedL( state ); |
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163 break; |
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164 } |
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165 default: |
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166 { |
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167 // pass |
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168 break; |
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169 } |
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170 } |
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171 } |
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172 } |
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173 |
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174 // --------------------------------------------------------------------------- |
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175 // Handle playback state changed. |
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176 // --------------------------------------------------------------------------- |
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177 // |
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178 void CMPXEqualizerHelper::DoHandleStateChangedL( |
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179 TMPXPlaybackState /* aState */ ) |
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180 { |
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181 MPX_FUNC("CMPXEqualizerHelper::DoHandleStateChangedL"); |
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182 // Do nothing |
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183 } |
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184 |
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185 // --------------------------------------------------------------------------- |
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186 // From CMPXEqualizerView |
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187 // Launch equalizer dialog. |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 void CMPXEqualizerHelper::LaunchEqualizerL() |
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191 { |
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192 MPX_FUNC("CMPXEqualizerHelper::LaunchEqualizerL"); |
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193 // Do nothing |
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194 } |
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195 |
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196 // --------------------------------------------------------------------------- |
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197 // From MMPXPlaybackObserver |
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198 // Handle playback message. |
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199 // --------------------------------------------------------------------------- |
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200 // |
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201 void CMPXEqualizerHelper::HandlePlaybackMessage( |
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202 CMPXMessage* aMessage, TInt aError ) |
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203 { |
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204 MPX_FUNC("CMPXEqualizerHelper::HandlePlaybackMessage"); |
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205 if ( aError == KErrNone && aMessage ) |
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206 { |
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207 TRAP_IGNORE( DoHandlePlaybackMessageL( *aMessage ) ); |
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208 } |
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209 } |
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210 |
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211 // --------------------------------------------------------------------------- |
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212 // From MEqualizerPresetActivationObserver |
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213 // Handle preset id activation from Equalizer dialog. |
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214 // --------------------------------------------------------------------------- |
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215 // |
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216 void CMPXEqualizerHelper::HandlePresetActivation( |
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217 TInt /* aActivatedPreset */ ) |
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218 { |
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219 MPX_FUNC("CMPXEqualizerHelper::HandlePresetActivation"); |
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220 // Do nothing |
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221 } |
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222 |
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223 // --------------------------------------------------------------------------- |
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224 // From MMdaAudioPlayerCallback |
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225 // Callback when an attempt to open and initialise an audio sample |
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226 // has completed. |
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227 // --------------------------------------------------------------------------- |
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228 // |
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229 void CMPXEqualizerHelper::MapcInitComplete( |
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230 TInt /* aError */, |
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231 const TTimeIntervalMicroSeconds& /* aDuration */ ) |
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232 { |
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233 MPX_FUNC("CMPXEqualizerHelper::MapcInitComplete"); |
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234 // Do nothing |
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235 } |
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236 |
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237 // --------------------------------------------------------------------------- |
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238 // From MMdaAudioPlayerCallback |
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239 // Callback when an attempt to playback an audio sample has completed. |
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240 // --------------------------------------------------------------------------- |
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241 // |
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242 void CMPXEqualizerHelper::MapcPlayComplete( |
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243 TInt /* aError */ ) |
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244 { |
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245 MPX_FUNC("CMPXEqualizerHelper::MapcPlayComplete"); |
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246 // Do nothing |
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247 } |
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248 |
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249 // End of File |