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1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // SettingsManage.cpp |
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15 // Part of the MVS Application for TechView |
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16 // |
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17 |
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18 #include "SettingsManager.h" |
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19 #include "MVSAppUI.h" |
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20 #include "MVSConfigAudioFormatDialog.h" |
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21 #include "MVSConfigVideoFormatDialog.h" |
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22 |
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23 _LIT(KFullPathOfFileStore,"C:\\private\\102737E8\\MvsSettings.dat"); |
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24 |
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25 CSettingsManager::CSettingsManager() |
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26 :iStore(0),iHasSettings(1) |
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27 { |
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28 |
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29 } |
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30 |
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31 CSettingsManager::~CSettingsManager() |
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32 { |
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33 iFsSession.Close(); //close the file session |
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34 iArrUid.Close(); |
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35 iArrStreamId.Close(); |
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36 if(iStore) |
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37 { |
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38 |
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39 } |
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40 } |
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41 |
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42 void CSettingsManager::ConstructL() |
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43 { |
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44 User::LeaveIfError(iFsSession.Connect()); // start a file session |
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45 } |
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46 |
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47 CSettingsManager* CSettingsManager::NewL() |
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48 { |
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49 CSettingsManager* self = new(ELeave) CSettingsManager(); |
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50 CleanupStack::PushL(self); |
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51 self->ConstructL(); |
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52 CleanupStack::Pop(self); |
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53 return self; |
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54 } |
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55 |
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56 |
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57 TBool CSettingsManager::OpenStore2ReadLC() |
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58 { |
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59 TParse fileStoreName; |
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60 iFsSession.Parse(KFullPathOfFileStore,fileStoreName); |
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61 |
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62 iStore = CPermanentFileStore::OpenLC(iFsSession, |
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63 fileStoreName.FullName(), |
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64 EFileRead ); |
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65 iHasSettings = ETrue; |
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66 return iHasSettings; |
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67 } |
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68 |
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69 void CSettingsManager::OpenStore2WriteLC() |
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70 { |
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71 TPath privatePath(KFullPathOfFileStore); |
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72 iFsSession.PrivatePath(privatePath); |
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73 TParse fileStoreName; |
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74 iFsSession.MkDirAll(KFullPathOfFileStore); |
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75 iFsSession.Parse(KFullPathOfFileStore,fileStoreName); |
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76 |
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77 if(iHasSettings) |
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78 { |
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79 iStore = CPermanentFileStore::OpenLC(iFsSession, |
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80 fileStoreName.FullName(), |
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81 EFileWrite ); |
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82 } |
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83 else |
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84 { |
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85 iStore = CPermanentFileStore::CreateLC(iFsSession, |
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86 fileStoreName.FullName(), |
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87 EFileWrite ); |
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88 } |
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89 |
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90 iStore->SetTypeL(KPermanentFileStoreLayoutUid); |
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91 } |
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92 |
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93 |
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94 TBool CSettingsManager::HasSettings() |
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95 { |
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96 return iHasSettings; |
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97 } |
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98 |
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99 void CSettingsManager::ReadGeneralSettingsL(CMVSAppUi* aAppUI) |
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100 { |
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101 if(!FileExists()) |
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102 return; |
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103 OpenStore2ReadLC(); |
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104 RStoreReadStream instream; |
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105 iRootId = iStore->Root(); |
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106 instream.OpenLC(*iStore,iRootId); //open root stream for reading |
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107 instream >> iGenSettingsId; |
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108 CleanupStack::PopAndDestroy(); |
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109 |
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110 //check for the validity of the streamid |
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111 if(!iGenSettingsId.Value()) |
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112 { |
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113 CleanupStack::PopAndDestroy(); |
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114 return; |
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115 } |
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116 |
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117 //open the stream for general settings |
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118 instream.OpenLC(*iStore,iGenSettingsId); |
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119 aAppUI->InternalizeL(instream); |
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120 CleanupStack::PopAndDestroy(2); |
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121 } |
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122 |
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123 |
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124 void CSettingsManager::WriteGeneralSettingsL(CMVSAppUi* aAppUI) |
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125 { |
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126 OpenStore2WriteLC(); |
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127 |
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128 RStoreWriteStream outstream; |
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129 /* |
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130 if already there is stream id for general settings open the existing |
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131 stream; otherwise create new stream id |
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132 */ |
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133 TBool updation = iGenSettingsId.Value(); |
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134 if(updation) |
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135 { |
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136 outstream.ReplaceLC(*iStore,iGenSettingsId); |
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137 } |
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138 else |
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139 { |
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140 iGenSettingsId = outstream.CreateLC(*iStore); |
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141 } |
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142 |
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143 //write the general settings |
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144 aAppUI->ExternalizeL(outstream); |
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145 outstream.CommitL(); |
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146 CleanupStack::PopAndDestroy(); |
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147 |
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148 if(!updation) |
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149 { |
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150 outstream.ReplaceLC(*iStore,iStore->Root()); |
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151 TUid tempUid; |
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152 TStreamId tempStreamId(0); |
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153 WriteIndexL(outstream,tempUid,tempStreamId); |
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154 CleanupStack::PopAndDestroy(); |
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155 } |
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156 |
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157 iStore->CommitL();// commit the changes to the store |
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158 CleanupStack::PopAndDestroy(); //for iStore |
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159 iFsSession.Close(); //close the file session |
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160 } |
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161 |
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162 /* |
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163 *This function assumes that the index doesn't exist |
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164 */ |
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165 void CSettingsManager::MakeSeedIndexL() |
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166 { |
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167 OpenStore2WriteLC(); |
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168 RStoreWriteStream outstream; |
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169 TStreamId invalidId(0); //caution: confirm the reliability of this value |
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170 iRootId = outstream.CreateLC(*iStore); |
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171 |
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172 //write an invalid stream index for general settings i.e.iGenSettingsId |
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173 outstream << invalidId; |
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174 |
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175 //write no. of controllers as 0 |
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176 outstream.WriteInt8L(0); |
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177 |
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178 outstream.CommitL(); //commit stream changes |
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179 CleanupStack::PopAndDestroy(); |
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180 |
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181 iStore->SetRootL(iRootId); |
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182 iStore->CommitL(); //commit changes to store |
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183 |
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184 CleanupStack::PopAndDestroy(); //for iStore |
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185 } |
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186 |
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187 // the stream should be in the beginning of controller section |
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188 void CSettingsManager::ReadControllerTableL(RReadStream& aStream) |
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189 { |
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190 iControllerCnt = aStream.ReadInt8L(); |
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191 TStreamId tempId; |
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192 iArrUid.Reset(); |
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193 iArrStreamId.Reset(); |
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194 //read the available pairs of Uid - Streamd Ids. |
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195 for(TInt8 i = 0; i < iControllerCnt;i++) |
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196 { |
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197 iArrUid.AppendL(TUid::Uid(aStream.ReadInt32L())); |
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198 aStream >> tempId; |
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199 iArrStreamId.AppendL(tempId); |
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200 } |
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201 } |
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202 |
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203 |
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204 TBool CSettingsManager::IsControllerAvailableL(const TUid& aUid, |
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205 TStreamId& aStreamId) |
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206 { |
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207 // if there is no Store fiel return false |
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208 if(!FileExists()) |
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209 return 0; |
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210 OpenStore2ReadLC(); |
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211 RStoreReadStream instream; |
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212 iRootId = iStore->Root(); |
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213 instream.OpenLC(*iStore,iRootId); //open root stream for reading |
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214 instream >> iGenSettingsId; //read this to move to controller section |
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215 ReadControllerTableL(instream); |
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216 CleanupStack::PopAndDestroy(2); |
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217 for(TUint8 i = 0; i < iControllerCnt; i++) |
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218 { |
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219 if(iArrUid[i] == aUid) |
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220 { |
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221 aStreamId = iArrStreamId[i]; |
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222 return 1; |
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223 } |
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224 } |
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225 return 0; |
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226 } |
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227 |
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228 |
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229 TInt CSettingsManager::ReadAudioDataL(CMVSConfigAudioFormatDialog* aAudioFormatDlg, |
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230 const TUid& aUid) |
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231 { |
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232 TStreamId controllerId; |
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233 // if the controller settings is not available return |
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234 if(!IsControllerAvailableL(aUid,controllerId)) |
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235 return 0; |
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236 |
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237 //open the store to read |
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238 if(!FileExists()) |
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239 return 0; |
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240 OpenStore2ReadLC(); |
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241 //open the stream of the given controller for reading |
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242 RStoreReadStream instream; |
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243 instream.OpenLC(*iStore,controllerId); |
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244 aAudioFormatDlg->InternalizeL(instream); |
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245 CleanupStack::PopAndDestroy(2); |
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246 return 1; |
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247 } |
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248 |
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249 void CSettingsManager::WriteAudioDataL(CMVSConfigAudioFormatDialog* aAudioFormat, |
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250 const TUid& aUid) |
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251 { |
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252 TStreamId controllerId; |
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253 RStoreWriteStream outstream; |
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254 TBool existingController = IsControllerAvailableL(aUid,controllerId); |
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255 OpenStore2WriteLC(); |
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256 if(!existingController) |
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257 { |
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258 //if controller settings is not available create new stream |
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259 controllerId = outstream.CreateLC(*iStore); |
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260 } |
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261 else //open the existing for updation |
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262 { |
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263 outstream.ReplaceLC(*iStore,controllerId); |
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264 } |
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265 aAudioFormat->ExternalizeL(outstream); |
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266 outstream.CommitL(); |
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267 CleanupStack::PopAndDestroy(); |
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268 |
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269 /* |
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270 if there is no updation for controller i.e. new controller settings |
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271 is entered |
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272 */ |
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273 if(!existingController) |
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274 { |
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275 outstream.ReplaceLC(*iStore,iRootId); |
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276 WriteIndexL(outstream,aUid,controllerId); |
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277 CleanupStack::PopAndDestroy(); |
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278 } |
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279 iStore->CommitL(); |
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280 CleanupStack::PopAndDestroy(); //for iStore |
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281 } |
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282 |
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283 void CSettingsManager::WriteIndexL(RWriteStream& aStream, |
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284 const TUid& aUid, |
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285 TStreamId& aStreamId) |
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286 { |
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287 TBool bNewPlugin = aStreamId.Value(); |
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288 TUint8 uchExistingPluginCnt = iControllerCnt; |
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289 //write root index |
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290 aStream << iGenSettingsId; |
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291 |
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292 if(bNewPlugin) |
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293 { |
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294 iControllerCnt++; |
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295 } |
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296 |
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297 aStream.WriteInt8L(iControllerCnt); |
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298 |
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299 //write the uid-streamid for existing plugins |
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300 for(TUint8 i = 0; i < uchExistingPluginCnt; i++) |
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301 { |
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302 aStream.WriteInt32L(iArrUid[i].iUid); //write uid |
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303 aStream << iArrStreamId[i]; //write streamid |
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304 } |
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305 |
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306 if(!bNewPlugin) |
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307 { |
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308 aStream.CommitL(); |
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309 return; |
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310 } |
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311 |
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312 //write uid-streamId for new plugin |
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313 aStream.WriteInt32L(aUid.iUid); //write uid |
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314 aStream << aStreamId; //write streamid |
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315 |
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316 iArrUid.AppendL(aUid); |
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317 iArrStreamId.AppendL(aStreamId); |
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318 aStream.CommitL(); |
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319 } |
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320 |
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321 |
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322 TBool CSettingsManager::ReadVideoDataL(CMVSConfigVideoFormatDialog* aVideoFormatDlg, |
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323 const TUid& aUid) |
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324 { |
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325 TStreamId controllerId; |
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326 // if the controller settings is not available return |
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327 if(!IsControllerAvailableL(aUid,controllerId)) |
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328 return 0; |
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329 |
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330 //open the store to read |
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331 if(!FileExists()) |
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332 return 0; |
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333 OpenStore2ReadLC(); |
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334 //open the stream of the given controller for reading |
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335 RStoreReadStream instream; |
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336 instream.OpenLC(*iStore,controllerId); |
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337 aVideoFormatDlg->InternalizeL(instream); |
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338 CleanupStack::PopAndDestroy(2); |
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339 return 1; |
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340 } |
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341 |
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342 |
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343 void CSettingsManager::WriteVideoDataL( CMVSConfigVideoFormatDialog* aVideoFormatDlg, |
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344 const TUid& aUid) |
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345 { |
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346 TStreamId controllerId; |
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347 RStoreWriteStream outstream; |
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348 TBool existingController = IsControllerAvailableL(aUid,controllerId); |
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349 OpenStore2WriteLC(); |
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350 if(!existingController) |
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351 { |
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352 //if controller settings is not available create new stream |
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353 controllerId = outstream.CreateLC(*iStore); |
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354 } |
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355 else //open the existing for updation |
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356 { |
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357 outstream.ReplaceLC(*iStore,controllerId); |
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358 } |
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359 aVideoFormatDlg->ExternalizeL(outstream); |
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360 outstream.CommitL(); |
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361 CleanupStack::PopAndDestroy(); |
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362 |
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363 /* |
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364 if there is no updation for controller i.e. new controller settings |
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365 is entered |
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366 */ |
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367 if(!existingController) |
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368 { |
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369 outstream.ReplaceLC(*iStore,iRootId); |
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370 WriteIndexL(outstream,aUid,controllerId); |
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371 CleanupStack::PopAndDestroy(); |
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372 } |
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373 iStore->CommitL(); |
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374 CleanupStack::PopAndDestroy(); //for iStore |
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375 } |
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376 |
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377 TBool CSettingsManager::FileExists() |
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378 { |
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379 TParse fileStoreName; |
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380 iFsSession.Parse(KFullPathOfFileStore,fileStoreName); |
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381 //check whether a settings file already exists |
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382 RFile file; |
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383 if(file.Open(iFsSession,fileStoreName.FullName(),EFileRead)!= KErrNone) // if the file doesn't exist already |
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384 { |
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385 iHasSettings = 0; |
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386 return EFalse; |
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387 } |
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388 file.Close(); |
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389 return ETrue; |
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390 } |