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1 /* |
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2 * Copyright (c) 2008 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: Image saver 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 #include "cphsrvimagesaver.h" |
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20 #include "mphsrvimagesaverobserver.h" |
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21 #include <imageconversion.h> |
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22 #include <f32file.h> |
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23 #include <bitmaptransforms.h> |
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24 |
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25 // primary file name for VT image |
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26 _LIT( KPhSrvPrimaryVtImageFileName, "vtstillimage1" ); |
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27 |
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28 // file name used if primary file is in use while save occurs |
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29 _LIT( KPhSrvAlternateVtImageFileName, "vtstillimage2" ); |
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30 |
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31 // ======== MEMBER FUNCTIONS ======== |
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32 |
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33 // --------------------------------------------------------------------------- |
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34 // 1st constructor |
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35 // --------------------------------------------------------------------------- |
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36 // |
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37 CPhSrvImageSaver* CPhSrvImageSaver::NewL( |
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38 RFs& aFs, |
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39 const TFileName& aPrivatePath, |
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40 MPhSrvImageSaverObserver& aObserver ) |
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41 { |
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42 CPhSrvImageSaver* saver = new ( ELeave ) CPhSrvImageSaver( |
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43 aFs, aPrivatePath, aObserver ); |
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44 CleanupStack::PushL( saver ); |
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45 saver->ConstructL(); |
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46 CleanupStack::Pop(); |
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47 return saver; |
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48 } |
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49 |
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50 // --------------------------------------------------------------------------- |
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51 // destructor |
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52 // --------------------------------------------------------------------------- |
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53 // |
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54 CPhSrvImageSaver::~CPhSrvImageSaver() |
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55 { |
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56 delete iImageDecoder; |
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57 delete iFileManager; |
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58 delete iScaler; |
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59 } |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // Saves image |
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63 // 1) decode from file |
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64 // 2a) scale (for single frame images) and save to phone server private dir, or |
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65 // 2b) multiframe image - copy file as is to phone server private directory |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 void CPhSrvImageSaver::SaveImageL( const TDesC& aFileName ) |
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69 { |
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70 if ( IsActive() ) |
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71 { |
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72 User::Leave( KErrInUse ); |
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73 } |
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74 iImageDecoder = CImageDecoder::FileNewL( iFs, aFileName ); |
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75 const TInt frameCount = iImageDecoder->FrameCount(); |
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76 if ( frameCount > 1 ) |
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77 { |
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78 // decoder not needed because image is copied as is |
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79 delete iImageDecoder; |
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80 iImageDecoder = NULL; |
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81 CopyImageL( aFileName ); |
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82 } |
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83 else if ( frameCount == 1 ) |
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84 { |
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85 ScaleImageL(); |
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86 } |
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87 else |
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88 { |
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89 // invalid image? |
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90 User::Leave( KErrCorrupt ); |
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91 } |
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92 } |
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93 |
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94 // --------------------------------------------------------------------------- |
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95 // Copies the file |
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96 // --------------------------------------------------------------------------- |
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97 // |
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98 void CPhSrvImageSaver::CopyImageL( const TDesC& aFileName ) |
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99 { |
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100 TName targetFileName; |
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101 ConstructVtFileSaveName( aFileName, targetFileName ); |
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102 iFileManager = CFileMan::NewL( iFs ); |
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103 iFileManager->Copy( aFileName, targetFileName, |
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104 CFileMan::EOverWrite, iStatus ); |
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105 } |
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106 |
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107 // --------------------------------------------------------------------------- |
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108 // ScaleImageL |
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109 // --------------------------------------------------------------------------- |
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110 // |
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111 void CPhSrvImageSaver::ScaleImageL() |
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112 { |
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113 } |
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114 |
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115 // --------------------------------------------------------------------------- |
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116 // Checks if primary file is in use. |
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117 // --------------------------------------------------------------------------- |
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118 // |
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119 TInt CPhSrvImageSaver::IsPrimaryFileInUse( TBool& aIsInUse ) |
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120 { |
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121 CDir* entries = NULL; |
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122 TInt res = iFs.GetDir( iPath, KEntryAttNormal, EDirsLast, entries ); |
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123 if ( res == KErrNone && entries ) |
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124 { |
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125 const TInt entryCount( entries->Count() ); |
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126 for ( TInt index = 0; index < entryCount; index++ ) |
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127 { |
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128 const TEntry& entry = ( *entries )[index]; |
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129 if ( entry.iName.Compare( KPhSrvPrimaryVtImageFileName() ) >= 0 ) |
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130 { |
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131 // primary file name matches with directory entry (extension |
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132 // depends on file format) |
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133 res = iFs.IsFileOpen( entry.iName, aIsInUse ); |
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134 index = entryCount; // break loop |
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135 } |
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136 } |
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137 } |
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138 delete entries; |
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139 return res; |
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140 } |
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141 |
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142 // --------------------------------------------------------------------------- |
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143 // Constructs target file name for VT still image. Alternate name is used if |
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144 // file with primary name is open. |
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145 // --------------------------------------------------------------------------- |
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146 // |
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147 TInt CPhSrvImageSaver::ConstructVtFileSaveName( |
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148 const TDesC& aSourceFileName, |
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149 TName& aTargetFileName ) |
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150 { |
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151 TBool inUse( EFalse ); |
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152 TInt res( IsPrimaryFileInUse( inUse ) ); |
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153 if ( res == KErrNone ) |
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154 { |
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155 TParse sourceName; |
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156 sourceName.Set( aSourceFileName, NULL, NULL ); |
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157 aTargetFileName = iPath; |
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158 if ( inUse ) |
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159 { |
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160 // primary file in use (open), use alternalte name |
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161 aTargetFileName.Append( KPhSrvAlternateVtImageFileName() ); |
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162 } |
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163 else |
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164 { |
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165 aTargetFileName.Append( KPhSrvPrimaryVtImageFileName() ); |
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166 } |
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167 aTargetFileName.Append( sourceName.Ext() ); |
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168 } |
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169 return res; |
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170 } |
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171 |
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172 // --------------------------------------------------------------------------- |
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173 // CPhSrvImageSaver::RunL |
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174 // --------------------------------------------------------------------------- |
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175 // |
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176 void CPhSrvImageSaver::RunL() |
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177 { |
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178 iObserver.ImageSaved( iStatus.Int() ); |
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179 } |
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180 |
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181 // --------------------------------------------------------------------------- |
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182 // CPhSrvImageSaver::DoCancel |
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183 // --------------------------------------------------------------------------- |
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184 // |
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185 void CPhSrvImageSaver::DoCancel() |
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186 { |
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187 iObserver.ImageSaved( KErrCancel ); |
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188 } |
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189 |
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190 // --------------------------------------------------------------------------- |
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191 // CPhSrvImageSaver::ConstructL |
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192 // --------------------------------------------------------------------------- |
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193 // |
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194 void CPhSrvImageSaver::ConstructL() |
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195 { |
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196 User::Leave( KErrNotSupported ); |
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197 } |
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198 |
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199 // --------------------------------------------------------------------------- |
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200 // c++ constructor |
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201 // --------------------------------------------------------------------------- |
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202 // |
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203 CPhSrvImageSaver::CPhSrvImageSaver( RFs& aFs, const TFileName& aPrivatePath, |
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204 MPhSrvImageSaverObserver& aObserver) |
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205 : CActive( CActive::EPriorityStandard ), |
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206 iFs( aFs ), |
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207 iPath( aPrivatePath ), |
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208 iObserver( aObserver ) |
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209 { |
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210 } |