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1 /* |
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2 * Copyright (c) 2002-2005 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: Implementation of HWR engine |
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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 <AknFepGlobalEnums.h> |
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20 #include <aknfeppeninputenums.h> |
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21 #include <PtiHwrRecognizer.h> |
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22 |
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23 #include "peninputhwrengine.h" |
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24 #include "peninputhwrbxdatastore.h" |
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25 |
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26 // constant definition |
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27 const TInt KInvalidStrokeEndMarkX = -65536; |
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28 const TInt KInvalidStrokeEndMarkY = -65536; |
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29 |
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30 //const TInt KMaxPredictiveCount = 50; |
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31 const TInt K1PagePredictiveCount = 36; |
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32 const TUint16 KGestureSpace = 0xF800; |
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33 const TUint16 KGestureEnter = 0xF801; |
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34 const TUint16 KSegment = 0x0020; |
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35 const TUint16 KGestureBackspace = 0x2408; |
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36 const TUint16 KDisplayBackspace = 0x2190; |
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37 const TInt KPremaryCandidateCount = 13; |
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38 const TInt KAuxCandidateCount = 1; |
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39 |
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40 _LIT(KNumberSet,"0123456789"); |
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41 _LIT(KSeparator,"\0"); |
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42 _LIT(KDash,"-"); |
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43 _LIT(KSolidus,"/"); |
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44 |
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45 // --------------------------------------------------------- |
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46 // Symbian constructor |
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47 // --------------------------------------------------------- |
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48 // |
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49 CAknFepHwrEngine* CAknFepHwrEngine::NewL(CPtiEngine* aPtiEngine, CAknFepHwrBxDataStore* aOwner) |
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50 { |
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51 CAknFepHwrEngine* self = new (ELeave) CAknFepHwrEngine(); |
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52 |
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53 CleanupStack::PushL(self); |
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54 self->ConstructL(aPtiEngine, aOwner); |
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55 CleanupStack::Pop(self);//self |
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56 |
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57 return self; |
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58 } |
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59 |
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60 // --------------------------------------------------------- |
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61 // C++ constructor |
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62 // --------------------------------------------------------- |
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63 // |
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64 CAknFepHwrEngine::CAknFepHwrEngine():iRecognizerInited(EFalse), |
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65 iNeedSetNumberMode(EFalse), |
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66 iNeedSetCase(EFalse), |
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67 iNeedSetRange(EFalse) |
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68 { |
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69 } |
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70 |
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71 // --------------------------------------------------------- |
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72 // destructor |
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73 // --------------------------------------------------------- |
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74 // |
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75 CAknFepHwrEngine::~CAknFepHwrEngine() |
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76 { |
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77 if(iOwnPtiEngine) |
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78 { |
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79 delete iPtiEngine; |
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80 } |
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81 delete iCustomKeymap; |
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82 |
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83 delete iIdle; |
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84 |
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85 iPermittedRanges.Reset(); |
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86 iPermittedRanges.Close(); |
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87 } |
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88 |
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89 // --------------------------------------------------------- |
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90 // Second phase constructor |
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91 // --------------------------------------------------------- |
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92 // |
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93 void CAknFepHwrEngine::ConstructL(CPtiEngine* aPtiEngine, CAknFepHwrBxDataStore* aOwner) |
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94 { |
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95 iPtiEngine = aPtiEngine; |
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96 |
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97 if( !iPtiEngine ) |
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98 { |
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99 iPtiEngine = CPtiEngine::NewL(ETrue); |
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100 iOwnPtiEngine = ETrue; |
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101 } |
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102 |
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103 iIdle = CIdle::NewL(CActive::EPriorityIdle); |
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104 iOwner = aOwner; |
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105 } |
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106 |
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107 // --------------------------------------------------------- |
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108 // Convert stroke end mark |
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109 // --------------------------------------------------------- |
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110 // |
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111 void CAknFepHwrEngine::ConvertStrokeEndMark(RArray<TPoint>& aTraceData, TPoint aPnt1, TPoint aPnt2) |
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112 { |
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113 TInt count = aTraceData.Count(); |
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114 |
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115 for (TInt i = 0; i < count; i++) |
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116 { |
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117 if (aTraceData[i] == aPnt1) |
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118 { |
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119 aTraceData.Remove(i); |
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120 aTraceData.Insert(aPnt2, i); |
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121 } |
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122 } |
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123 } |
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124 |
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125 // --------------------------------------------------------- |
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126 // Do recoginize by engine |
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127 // --------------------------------------------------------- |
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128 // |
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129 void CAknFepHwrEngine::DoRecognizeL(const RArray<TPoint>& aTraceData, |
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130 RPointerArray<HBufC>& aCandidates) |
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131 { |
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132 if (!iRecognizer) |
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133 { |
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134 return; |
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135 } |
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136 |
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137 TPoint ctrlStrokeEndMark = iOwner->StrokeEndMarkFromControl(); |
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138 |
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139 if (!iRecognizerInited) |
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140 { |
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141 DoIdleConstructL(); |
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142 } |
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143 |
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144 if (ctrlStrokeEndMark != iRecognizer->StrokeEndMark()) |
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145 { |
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146 ConvertStrokeEndMark(CONST_CAST(RArray<TPoint>&, aTraceData), |
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147 iOwner->StrokeEndMarkFromControl(), |
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148 iRecognizer->StrokeEndMark()); |
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149 iOwner->SetStrokeEndMark(); // make control's stroke end mark info same to engine |
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150 } |
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151 |
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152 aCandidates.ResetAndDestroy(); |
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153 |
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154 TInt primaryCount; |
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155 TBuf<1> bufBackspace; |
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156 bufBackspace.Append(KGestureBackspace); |
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157 TBuf<1> bufDisplayBackspace; |
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158 bufDisplayBackspace.Append(KDisplayBackspace); |
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159 |
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160 if (iOwner->IsNumberOnly()) |
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161 { |
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162 if ( iNumberMode == EAknEditorPlainNumberModeKeymap ) |
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163 { |
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164 TBuf<1> bufEnter; |
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165 bufEnter.Append( KGestureEnter ); |
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166 TBuf<1> bufSpace; |
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167 bufSpace.Append( KGestureSpace ); |
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168 |
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169 TBuf<13> buf; |
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170 buf.Append( KNumberSet() ); |
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171 buf.Append( bufBackspace ); |
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172 buf.Append( bufEnter ); |
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173 buf.Append( bufSpace ); |
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174 primaryCount = iRecognizer->RecognizeWithCharSet( |
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175 aTraceData, aCandidates, buf ); |
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176 } |
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177 else |
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178 { |
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179 primaryCount = iRecognizer->Recognize(aTraceData, aCandidates); |
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180 } |
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181 |
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182 for ( TInt i = aCandidates.Count() - 1; i >= 0; i-- ) |
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183 { |
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184 if (aCandidates[i]->Compare(bufBackspace) == 0) |
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185 { |
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186 *aCandidates[i] = bufDisplayBackspace; |
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187 } |
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188 } |
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189 |
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190 if (iCustomKeymap) |
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191 { |
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192 for(TInt i=0; i<aCandidates.Count(); i++) |
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193 { |
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194 if( iCustomKeymap->Find(*aCandidates[i]) == KErrNotFound ) |
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195 { |
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196 delete aCandidates[i]; |
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197 aCandidates.Remove(i); |
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198 primaryCount--; |
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199 i--; |
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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 for (TInt i = 0; i < primaryCount-iTotalCandidateNum; i++) |
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205 { |
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206 delete aCandidates[iTotalCandidateNum]; |
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207 aCandidates.Remove(iTotalCandidateNum); |
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208 } |
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209 return; |
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210 } |
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211 |
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212 primaryCount = iRecognizer->Recognize(aTraceData, aCandidates); |
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213 |
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214 // remove uncessary primary candidate |
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215 TInt removePos = iTotalCandidateNum - (iRangeCount - 1); |
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216 if (removePos >= 0) |
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217 { |
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218 for (TInt i = 0; i < primaryCount - removePos; i++) |
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219 { |
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220 delete aCandidates[removePos]; |
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221 aCandidates.Remove(removePos); |
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222 } |
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223 } |
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224 |
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225 // filter recognized candidate, set start position for all ranges |
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226 TPtrC ptr(KSeparator); |
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227 |
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228 // remove uncessary aux candidate, including range separator |
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229 for (TInt i=0; i<aCandidates.Count(); i++) |
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230 { |
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231 if (aCandidates[i]->Compare(bufBackspace) == 0) |
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232 { |
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233 // convert backspace returned by engine, to make sure it display correctly. |
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234 *aCandidates[i] = bufDisplayBackspace; |
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235 } |
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236 |
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237 else if ( (aCandidates[i]->CompareC(ptr) == 0) ) |
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238 { |
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239 // remove separator from candidate list |
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240 delete aCandidates[i]; |
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241 aCandidates.Remove(i); |
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242 } |
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243 } |
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244 |
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245 TPtrC dashPtr(KDash); |
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246 TPtrC solidusPtr(KSolidus); |
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247 |
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248 // not allowing '-' to be the first char in chinese range |
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249 // not allowing '/' to be the first char in English and Number range |
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250 if ( ( iPremaryRange == ERangeNative ) && (aCandidates[0]->Compare(dashPtr) == 0) ) |
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251 { |
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252 *aCandidates[0] = *aCandidates[1]; |
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253 *aCandidates[1] = dashPtr; |
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254 } |
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255 else if ( ( (iPremaryRange == ERangeEnglish)||(iPremaryRange == ERangeNumber) ) |
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256 && (aCandidates[0]->Compare(solidusPtr) == 0) ) |
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257 { |
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258 *aCandidates[0] = *aCandidates[1]; |
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259 *aCandidates[1] = solidusPtr; |
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260 } |
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261 } |
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262 |
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263 // --------------------------------------------------------- |
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264 // Judge if candidate exist in given position |
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265 // --------------------------------------------------------- |
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266 // |
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267 TBool CAknFepHwrEngine::CandidateExisted() |
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268 { |
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269 return iPtiEngine->MoreCandidatePages(); |
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270 } |
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271 |
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272 // --------------------------------------------------------- |
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273 // Do predictive using trigger string |
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274 // --------------------------------------------------------- |
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275 // |
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276 void CAknFepHwrEngine::DoPredictiveL(const TDesC& aTriggerStr, |
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277 RPointerArray<HBufC>& aPredictives, |
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278 TBool aNextPage) |
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279 { |
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280 // predictive only valid for Chinese |
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281 if (((iLanguage == ELangPrcChinese) || |
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282 (iLanguage == ELangTaiwanChinese) || |
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283 (iLanguage == ELangHongKongChinese)) && |
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284 (iPtiEngine)) |
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285 { |
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286 // activate correct pti language according to given language |
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287 |
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288 if (!aNextPage) |
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289 { |
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290 iPtiEngine->SetCandidatePageLength(K1PagePredictiveCount); |
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291 aPredictives.ResetAndDestroy(); |
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292 |
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293 if(!iPtiEngine->SetPredictiveChineseChar(aTriggerStr)) |
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294 { |
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295 return; |
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296 } |
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297 } |
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298 else |
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299 { |
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300 if (!iPtiEngine->NextCandidatePage()) |
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301 { |
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302 return; |
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303 } |
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304 } |
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305 |
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306 TPtrC ptr = iPtiEngine->CandidatePage(); |
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307 |
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308 if ((iPtiEngine->InputMode() == EPtiEnginePinyinByPhrase) || |
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309 (iPtiEngine->InputMode() == EPtiEngineStrokeByPhrase) || |
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310 (iPtiEngine->InputMode() == EPtiEngineZhuyinByPhrase)) |
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311 { |
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312 // phrase input mode |
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313 TInt start = 0; |
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314 TInt length = 0; |
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315 |
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316 for (TInt i = 0; i <ptr.Length(); i++) |
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317 { |
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318 if (ptr[i] == KSegment) |
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319 { |
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320 TPtrC segment(ptr.Ptr() + start, length); |
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321 TRAP_IGNORE(aPredictives.AppendL(segment.AllocL())); |
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322 start += (length + 1); |
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323 length = 0; |
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324 } |
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325 else |
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326 { |
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327 length++; |
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328 } |
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329 } |
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330 |
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331 if (length) |
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332 { |
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333 TPtrC segm(ptr.Ptr() + start, length); |
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334 TRAP_IGNORE(aPredictives.AppendL(segm.AllocL())); |
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335 } |
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336 } |
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337 else |
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338 { |
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339 TInt predictiveCandidateNum = ptr.Length(); |
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340 |
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341 for (TInt i=0; i<predictiveCandidateNum; i++) |
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342 { |
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343 aPredictives.Append(ptr.Mid(i,1).AllocL()); |
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344 } |
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345 } |
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346 } |
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347 } |
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348 |
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349 // --------------------------------------------------------- |
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350 // Set primary and auxiliary ranges for hwr engine |
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351 // --------------------------------------------------------- |
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352 // |
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353 void CAknFepHwrEngine::SetRanges(const RArray<TInt>& aPermittedRanges) |
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354 { |
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355 if (!iRecognizerInited) |
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356 { |
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357 iNeedSetRange = ETrue; |
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358 iPermittedRanges.Reset(); |
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359 |
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360 for (TInt i = 0; i < aPermittedRanges.Count(); i++) |
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361 { |
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362 iPermittedRanges.Append(aPermittedRanges[i]); |
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363 } |
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364 |
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365 return; |
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366 } |
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367 |
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368 if ((aPermittedRanges.Count() > 0) && (iRecognizer)) |
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369 { |
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370 iPremaryRange = aPermittedRanges[0]; |
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371 iRangeCount = aPermittedRanges.Count(); |
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372 |
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373 TRecognitionRange range; |
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374 |
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375 SetRecognitionRange(aPermittedRanges[0], range); |
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376 iRecognizer->SetRange(range); |
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377 |
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378 // set auxiliary ranges for hwr engine |
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379 for (TInt i=1; i<aPermittedRanges.Count(); i++) |
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380 { |
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381 SetRecognitionRange(aPermittedRanges[i], range); |
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382 |
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383 iRecognizer->AddAuxiliaryRange(range); |
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384 } |
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385 |
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386 SetCase(iCase); |
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387 } |
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388 } |
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389 |
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390 // --------------------------------------------------------- |
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391 // Set case |
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392 // --------------------------------------------------------- |
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393 // |
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394 void CAknFepHwrEngine::SetCase(TInt aCase) |
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395 { |
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396 if (!iRecognizerInited) |
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397 { |
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398 iNeedSetCase = ETrue; |
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399 iCase = aCase; |
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400 return; |
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401 } |
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402 |
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403 // set letter to lower first when LowerCase |
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404 // set letter to upper first when UpperCase and TextCase |
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405 if (iRecognizer) |
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406 { |
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407 if (aCase == ELowerCase) |
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408 { |
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409 iRecognizer->SetFirstLetterOrder(ELowerFirst); |
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410 } |
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411 else |
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412 { |
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413 iRecognizer->SetFirstLetterOrder(EUpperFirst); |
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414 } |
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415 |
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416 iCase = aCase; |
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417 } |
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418 } |
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419 |
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420 // --------------------------------------------------------- |
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421 // Set number mode for hwr engine |
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422 // --------------------------------------------------------- |
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423 // |
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424 void CAknFepHwrEngine::SetNumberMode(const TAknEditorNumericKeymap& aNumberMode) |
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425 { |
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426 iNumberMode = aNumberMode; |
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427 |
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428 if (!iRecognizerInited) |
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429 { |
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430 iNeedSetNumberMode = ETrue; |
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431 |
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432 return; |
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433 } |
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434 |
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435 if (iRecognizer) |
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436 { |
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437 iRecognizer->SetNumberMode(aNumberMode); |
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438 if( aNumberMode != EKeymapFromResource) |
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439 { |
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440 ResetCustomKeyMap(); |
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441 } |
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442 } |
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443 } |
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444 |
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445 // --------------------------------------------------------- |
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446 // Get stroke end mark from hwr engine |
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447 // --------------------------------------------------------- |
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448 // |
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449 TPoint CAknFepHwrEngine::StrokeEndMark() const |
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450 { |
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451 if (iRecognizer) |
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452 { |
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453 return iRecognizer->StrokeEndMark(); |
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454 } |
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455 else |
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456 { |
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457 return TPoint(KInvalidStrokeEndMarkX, KInvalidStrokeEndMarkY); |
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458 } |
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459 } |
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460 |
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461 // --------------------------------------------------------- |
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462 // Set primary candidate num for hwr engine |
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463 // --------------------------------------------------------- |
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464 // |
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465 TInt CAknFepHwrEngine::SetPrimaryCandidateNum(TInt aNum) |
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466 { |
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467 if (iRecognizer) |
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468 { |
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469 return iRecognizer->SetCandidateNum(aNum); |
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470 } |
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471 else |
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472 { |
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473 return KErrGeneral; |
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474 } |
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475 } |
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476 |
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477 // --------------------------------------------------------- |
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478 // Set aux candidate num that should be shown |
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479 // --------------------------------------------------------- |
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480 // |
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481 TInt CAknFepHwrEngine::SetAuxCandidateNum(TInt aNum) |
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482 { |
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483 if (iRecognizer) |
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484 { |
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485 return iRecognizer->SetAuxCandidateNum(aNum); |
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486 } |
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487 else |
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488 { |
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489 return KErrGeneral; |
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490 } |
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491 } |
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492 |
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493 |
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494 // --------------------------------------------------------- |
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495 // Get aux candidate num that should be shown |
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496 // --------------------------------------------------------- |
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497 // |
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498 TInt CAknFepHwrEngine::GetAuxCandidateNum() |
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499 { |
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500 if (iRecognizer) |
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501 { |
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502 return iRecognizer->GetAuxCandidateNum(); |
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503 } |
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504 else |
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505 { |
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506 return KErrGeneral; |
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507 } |
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508 } |
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509 |
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510 // --------------------------------------------------------- |
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511 // Set total candidate num that should be shown |
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512 // --------------------------------------------------------- |
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513 // |
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514 TInt CAknFepHwrEngine::SetCandidateNum(TInt aNum) |
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515 { |
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516 if (aNum > 0) |
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517 { |
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518 iTotalCandidateNum = aNum; |
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519 return KErrNone; |
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520 } |
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521 else |
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522 { |
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523 return KErrGeneral; |
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524 } |
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525 } |
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526 |
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527 // --------------------------------------------------------- |
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528 // Set language |
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529 // --------------------------------------------------------- |
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530 // |
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531 void CAknFepHwrEngine::SetLanguageL(TInt aLanguage) |
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532 { |
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533 if ( (iLanguage == aLanguage) || |
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534 (aLanguage != ELangPrcChinese && |
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535 aLanguage != ELangHongKongChinese && |
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536 aLanguage != ELangTaiwanChinese) ) |
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537 { |
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538 return; |
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539 } |
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540 |
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541 iLanguage = aLanguage; |
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542 switch (iLanguage) |
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543 { |
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544 case ELangPrcChinese: |
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545 { |
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546 if (iPtiEngine->ActivateLanguageL(iLanguage, EPtiEnginePinyinByPhrase) != KErrNone) |
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547 { |
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548 iPtiEngine->ActivateLanguageL(iLanguage, EPtiEnginePinyin); |
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549 } |
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550 } |
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551 break; |
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552 case ELangHongKongChinese: |
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553 if (iPtiEngine->ActivateLanguageL(iLanguage, EPtiEngineStrokeByPhrase) != KErrNone) |
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554 { |
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555 iPtiEngine->ActivateLanguageL(ELangHongKongChinese, EPtiEngineStroke); |
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556 } |
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557 break; |
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558 case ELangTaiwanChinese: |
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559 if (iPtiEngine->ActivateLanguageL(iLanguage, EPtiEngineZhuyinByPhrase) != KErrNone) |
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560 { |
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561 iPtiEngine->ActivateLanguageL(ELangTaiwanChinese, EPtiEngineZhuyin); |
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562 } |
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563 break; |
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564 default: |
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565 return; |
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566 } |
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567 |
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568 iRecognizerInited = EFalse; |
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569 |
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570 iIdle ->Start(TCallBack(BackgroundTaskL,this)); |
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571 } |
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572 |
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573 // --------------------------------------------------------------------------- |
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574 // CAknFepHwrEngine::DoIdleConstructL |
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575 // Do background construct. |
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576 // --------------------------------------------------------------------------- |
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577 // |
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578 void CAknFepHwrEngine::DoIdleConstructL() |
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579 { |
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580 if (iRecognizerInited) |
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581 { |
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582 return; |
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583 } |
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584 |
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585 iRecognizer = iPtiEngine->GetHwrRecognizerL(TLanguage(iLanguage)); |
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586 iRecognizerInited = ETrue; |
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587 iOwner->SetStrokeEndMark(); |
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588 SetPrimaryCandidateNum(KPremaryCandidateCount); |
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589 SetAuxCandidateNum(KAuxCandidateCount); |
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590 |
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591 if (iNeedSetRange) |
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592 { |
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593 SetRanges(iPermittedRanges); |
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594 iNeedSetRange = EFalse; |
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595 iPermittedRanges.Reset(); |
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596 } |
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597 |
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598 if (iNeedSetCase) |
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599 { |
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600 SetCase(iCase); |
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601 iNeedSetCase = EFalse; |
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602 } |
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603 |
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604 if (iNeedSetNumberMode) |
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605 { |
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606 SetNumberMode(TAknEditorNumericKeymap(iNumberMode)); |
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607 iNeedSetNumberMode = EFalse; |
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608 } |
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609 } |
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610 |
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611 // --------------------------------------------------------------------------- |
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612 // CAknFepHwrEngine::BackgroundConstructL |
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613 // Do background construct. |
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614 // --------------------------------------------------------------------------- |
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615 // |
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616 TInt CAknFepHwrEngine::BackgroundTaskL(TAny* aPtr) |
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617 { |
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618 CAknFepHwrEngine* self = static_cast<CAknFepHwrEngine*>(aPtr); |
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619 self->DoIdleConstructL(); |
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620 return EFalse; |
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621 } |
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622 |
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623 // --------------------------------------------------------- |
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624 // Set recognition range for hwr engine |
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625 // --------------------------------------------------------- |
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626 // |
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627 void CAknFepHwrEngine::SetRecognitionRange(const TInt aRange, TRecognitionRange& aRecognitionRange) |
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628 { |
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629 aRecognitionRange.iLanguage = TLanguage(iLanguage); |
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630 |
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631 switch (aRange) |
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632 { |
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633 case ERangeNative: |
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634 |
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635 if (iLanguage == ELangPrcChinese) |
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636 { |
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637 aRecognitionRange.iSubRange = EPtiRangePRCChinese; |
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638 } |
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639 else |
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640 { |
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641 if (iLanguage == ELangHongKongChinese) |
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642 { |
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643 aRecognitionRange.iSubRange = EPtiRangeHKChinese; |
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644 } |
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645 else |
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646 { |
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647 aRecognitionRange.iSubRange = EPtiRangeTWChinese; |
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648 } |
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649 } |
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650 |
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651 break; |
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652 case ERangeEnglish: |
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653 aRecognitionRange.iLanguage = ELangEnglish; |
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654 aRecognitionRange.iSubRange = EPtiRangeLatin; |
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655 |
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656 break; |
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657 case ERangeNumber: |
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658 aRecognitionRange.iSubRange = EPtiRangeNumber; |
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659 |
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660 break; |
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661 case ERangeSymbol: |
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662 // The symbol mode is associated with iLanguage instead of iPremaryRange |
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663 aRecognitionRange.iLanguage = TLanguage(iLanguage); |
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664 aRecognitionRange.iSubRange = EPtiRangeSymbol; |
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665 |
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666 break; |
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667 default: |
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668 break; |
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669 } |
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670 } |
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671 |
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672 // --------------------------------------------------------- |
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673 // Set recognition range for hwr engine |
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674 // --------------------------------------------------------- |
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675 // |
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676 void CAknFepHwrEngine::SetCustomKeymapL(const TDesC& aKeyMap) |
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677 { |
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678 delete iCustomKeymap; |
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679 iCustomKeymap = NULL; |
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680 iCustomKeymap = HBufC::NewL(aKeyMap.Length() + KNumberSet().Length()); |
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681 iCustomKeymap->Des().Copy(KNumberSet()); |
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682 iCustomKeymap->Des().Append(aKeyMap); |
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683 } |
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684 |
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685 // --------------------------------------------------------- |
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686 // Set recognition range for hwr engine |
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687 // --------------------------------------------------------- |
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688 // |
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689 void CAknFepHwrEngine::ResetCustomKeyMap() |
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690 { |
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691 delete iCustomKeymap; |
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692 iCustomKeymap = NULL; |
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693 } |
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694 TInt CAknFepHwrEngine::SetInputAreaSize(TSize& aSize) |
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695 { |
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696 if(iRecognizer) |
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697 { |
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698 return iRecognizer->SetInputAreaSize(aSize); |
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699 } |
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700 else |
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701 { |
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702 return KErrNotFound; |
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703 } |
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704 } |
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705 TInt CAknFepHwrEngine::SetScreenSize(TSize& aSize) |
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706 { |
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707 if(iRecognizer) |
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708 { |
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709 return iRecognizer->SetScreenSize(aSize); |
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710 } |
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711 else |
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712 { |
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713 return KErrNotFound; |
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714 } |
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715 } |
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716 |
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717 //End Of File |