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1 /* |
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2 * Copyright (c) 2002-2007 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: Group item definitions |
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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 "CGflmGroupItem.h" |
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22 #include "MGflmItemGroup.h" |
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23 #include <e32std.h> |
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24 |
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25 |
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26 // CONSTANTS |
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27 const TInt KIconIdUndefined = -1; |
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28 const TInt KSortCollationLevel = 3; |
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29 |
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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 // CGflmGroupItem::CGflmGroupItem |
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35 // C++ default constructor can NOT contain any code, that |
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36 // might leave. |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 CGflmGroupItem::CGflmGroupItem() |
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40 : iIconId( KIconIdUndefined ) |
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41 { |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // CGflmGroupItem::~CGflmGroupItem() |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 CGflmGroupItem::~CGflmGroupItem() |
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49 { |
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50 } |
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51 |
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52 // ----------------------------------------------------------------------------- |
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53 // CGflmGroupItem::GetIconId() |
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54 // (other items were commented in a header). |
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55 // ----------------------------------------------------------------------------- |
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56 // |
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57 EXPORT_C TInt CGflmGroupItem::GetIconId( TInt& aIconId ) |
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58 { |
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59 if ( iIconId == KIconIdUndefined ) |
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60 { |
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61 aIconId = 0; |
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62 return KErrNotFound; |
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63 } |
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64 aIconId = iIconId; |
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65 return KErrNone; |
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66 } |
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67 |
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68 // ----------------------------------------------------------------------------- |
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69 // CGflmGroupItem::SetIconId() |
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70 // (other items were commented in a header). |
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71 // ----------------------------------------------------------------------------- |
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72 // |
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73 EXPORT_C void CGflmGroupItem::SetIconId( const TInt aIconId ) |
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74 { |
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75 iIconId = aIconId; |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CGflmGroupItem::CanUseCompareF() |
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80 // (other items were commented in a header). |
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81 // ----------------------------------------------------------------------------- |
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82 // |
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83 TBool CGflmGroupItem::CanUseCompareF() const |
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84 { |
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85 if ( iStatus & ECanUseCompareF ) |
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86 { |
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87 return ETrue; |
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88 } |
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89 if ( iStatus & ECannotUseCompareF ) |
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90 { |
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91 return EFalse; |
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92 } |
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93 |
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94 TPtrC name( Name() ); |
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95 TInt len( name.Length() ); |
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96 const TText* ptr = name.Ptr(); |
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97 while ( len-- > 0 ) |
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98 { |
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99 TText ch = *ptr++; |
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100 // Do not allow CompareF for non Ascii or special chars |
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101 if ( !( ( ch >= 0x000A && ch <= 0x0039 ) || // Ascii basic symbols |
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102 ( ch >= 0x0041 && ch <= 0x005A ) || // Ascii capital alpha |
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103 ( ch >= 0x0061 && ch <= 0x007A ) ) ) // Ascii small alpha |
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104 { |
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105 iStatus |= ECannotUseCompareF; |
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106 return EFalse; |
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107 } |
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108 } |
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109 iStatus |= ECanUseCompareF; |
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110 return ETrue; |
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111 } |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // CGflmGroupItem::SetGroup() |
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115 // (other items were commented in a header). |
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116 // ----------------------------------------------------------------------------- |
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117 // |
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118 void CGflmGroupItem::SetGroup( MGflmItemGroup* aGroup ) |
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119 { |
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120 iGroup = aGroup; |
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121 } |
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122 |
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123 // ----------------------------------------------------------------------------- |
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124 // CGflmGroupItem::GetSortL() |
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125 // (other items were commented in a header). |
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126 // ----------------------------------------------------------------------------- |
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127 // |
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128 |
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129 TLinearOrder< CGflmGroupItem > CGflmGroupItem::GetSortL( |
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130 TGflmSortMethod aSortMethod ) |
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131 { |
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132 switch( aSortMethod ) |
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133 { |
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134 case EByName: |
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135 { |
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136 return CompareByName; |
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137 } |
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138 case EByType: |
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139 { |
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140 return CompareByType; |
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141 } |
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142 case EMostRecentFirst: |
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143 { |
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144 return CompareMostRecentFirst; |
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145 } |
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146 case ELargestFirst: |
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147 { |
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148 return CompareLargestFirst; |
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149 } |
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150 default: |
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151 { |
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152 User::Leave( KErrNotSupported ); |
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153 } |
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154 } |
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155 return CompareByName; |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // CGflmGroupItem::CompareByItemType |
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160 // Compares two CGflmGroupItem objects by name (ascending) |
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161 // (other items were commented in a header). |
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162 // ----------------------------------------------------------------------------- |
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163 // |
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164 TInt CGflmGroupItem::CompareByItemType( |
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165 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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166 { |
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167 TGflmItemType first( aFirst.Type() ); |
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168 TGflmItemType second( aSecond.Type() ); |
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169 if ( first < second ) |
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170 { |
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171 return -1; |
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172 } |
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173 else if ( first > second ) |
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174 { |
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175 return 1; |
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176 } |
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177 return 0; |
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178 } |
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179 |
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180 // ----------------------------------------------------------------------------- |
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181 // CGflmGroupItem::CompareByNameWithoutItemType |
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182 // Compares two CGflmGroupItem objects by name (ascending) |
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183 // (other items were commented in a header). |
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184 // ----------------------------------------------------------------------------- |
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185 // |
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186 TInt CGflmGroupItem::CompareByNameWithoutItemType( |
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187 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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188 { |
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189 // Do not use CompareC by default with collation |
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190 // because it is very bad for performance when sorting |
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191 // large folders i.e. several 1000s of files with long item names |
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192 // e.g. names containing over 40 chars |
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193 |
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194 // However, some languages are not sorted correctly with CompareF, |
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195 // so do cached name check to decide what comparison to use. |
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196 |
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197 if ( !aFirst.CanUseCompareF() || !aSecond.CanUseCompareF() ) |
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198 { |
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199 if ( aFirst.iGroup ) |
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200 { |
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201 const TCollationMethod* collate = |
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202 aFirst.iGroup->CollationMethod(); |
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203 if ( collate ) |
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204 { |
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205 return aFirst.Name().CompareC( |
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206 aSecond.Name(), |
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207 KSortCollationLevel, |
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208 collate ); |
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209 } |
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210 } |
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211 } |
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212 |
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213 return aFirst.Name().CompareF( aSecond.Name() ); |
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214 } |
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215 |
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216 // ----------------------------------------------------------------------------- |
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217 // CGflmGroupItem::CompareByName |
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218 // Compares two CGflmGroupItem objects by name (ascending) |
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219 // (other items were commented in a header). |
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220 // ----------------------------------------------------------------------------- |
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221 // |
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222 TInt CGflmGroupItem::CompareByName( |
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223 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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224 { |
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225 TInt ret( CompareByItemType( aFirst, aSecond ) ); |
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226 if ( !ret ) |
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227 { |
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228 return CompareByNameWithoutItemType( aFirst, aSecond ); |
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229 } |
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230 return ret; |
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231 } |
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232 |
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233 // ----------------------------------------------------------------------------- |
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234 // CGflmGroupItem::CompareByType |
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235 // Compares two CGflmGroupItem objects by file extension (ascending) |
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236 // (other items were commented in a header). |
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237 // ----------------------------------------------------------------------------- |
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238 // |
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239 TInt CGflmGroupItem::CompareByType( |
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240 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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241 { |
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242 TInt ret( CompareByItemType( aFirst, aSecond ) ); |
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243 if ( ret ) |
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244 { |
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245 return ret; |
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246 } |
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247 |
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248 // Do not use CompareC by default with collation |
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249 // because it is very bad for performance when sorting |
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250 // large folders i.e. several 1000s of files with long item names |
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251 // e.g. names containing over 40 chars |
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252 |
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253 // However, some languages are not sorted correctly with CompareF, |
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254 // so do cached name check to decide what comparison to use. |
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255 |
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256 if ( !aFirst.CanUseCompareF() || !aSecond.CanUseCompareF() ) |
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257 { |
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258 if ( aFirst.iGroup ) |
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259 { |
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260 const TCollationMethod* collate = |
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261 aFirst.iGroup->CollationMethod(); |
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262 if ( collate ) |
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263 { |
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264 ret = aFirst.Ext().CompareC( |
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265 aSecond.Ext(), |
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266 KSortCollationLevel, |
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267 collate ); |
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268 if ( !ret ) |
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269 { |
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270 ret = CompareByName( aFirst, aSecond ); |
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271 } |
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272 return ret; |
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273 } |
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274 } |
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275 } |
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276 |
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277 ret = aFirst.Ext().CompareF( aSecond.Ext() ); |
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278 if ( !ret ) |
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279 { |
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280 ret = CompareByNameWithoutItemType( aFirst, aSecond ); |
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281 } |
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282 return ret; |
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283 } |
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284 |
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285 // ----------------------------------------------------------------------------- |
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286 // CGflmGroupItem::CompareMostRecentFirst |
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287 // Compares two CGflmGroupItem objects by date (ascending) |
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288 // (other items were commented in a header). |
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289 // ----------------------------------------------------------------------------- |
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290 // |
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291 TInt CGflmGroupItem::CompareMostRecentFirst( |
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292 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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293 { |
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294 TInt ret( -CompareByItemType( aFirst, aSecond ) ); |
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295 if ( ret ) |
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296 { |
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297 return ret; |
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298 } |
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299 |
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300 TTime first( aFirst.Date() ); |
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301 TTime second( aSecond.Date() ); |
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302 |
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303 if ( first > second ) |
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304 { |
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305 return -1; |
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306 } |
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307 else if ( first < second ) |
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308 { |
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309 return 1; |
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310 } |
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311 return CompareByNameWithoutItemType( aFirst, aSecond ); |
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312 } |
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313 |
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314 // ----------------------------------------------------------------------------- |
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315 // CGflmGroupItem::CompareLargestFirst |
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316 // Compares two CGflmGroupItem objects by size (ascending) |
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317 // (other items were commented in a header). |
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318 // ----------------------------------------------------------------------------- |
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319 // |
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320 TInt CGflmGroupItem::CompareLargestFirst( |
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321 const CGflmGroupItem& aFirst, const CGflmGroupItem& aSecond ) |
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322 { |
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323 TInt ret( -CompareByItemType( aFirst, aSecond ) ); |
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324 if ( ret ) |
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325 { |
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326 return ret; |
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327 } |
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328 |
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329 TInt64 first( aFirst.Size() ); |
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330 TInt64 second( aSecond.Size() ); |
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331 |
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332 if ( first > second ) |
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333 { |
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334 return -1; |
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335 } |
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336 else if ( first < second ) |
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337 { |
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338 return 1; |
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339 } |
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340 return CompareByNameWithoutItemType( aFirst, aSecond ); |
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341 } |
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342 |
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343 // End of File |