1 /* |
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2 * Copyright (c) 2002 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: LandmarksUi Content File - |
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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 |
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21 |
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22 |
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23 |
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24 |
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25 // INCLUDE FILES |
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26 #include <e32math.h> |
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27 #include <stringloader.h> |
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28 #include <eikenv.h> |
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29 #include <AknUtils.h> |
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30 |
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31 #include <LmkUi.rsg> |
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32 #include "LmkConsts.h" |
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33 #include "landmarks.hrh" |
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34 #include "CLmkMfneSeparator.h" |
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35 #include "CLmkCoordinateEditor.h" |
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36 #include <AknBidiTextUtils.h> |
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37 |
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38 // CONSTANTS |
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39 /// Unnamed namespace for local definitions |
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40 namespace { |
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41 |
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42 const TInt KKeyToMatchEmptyCardinal = 0; |
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43 |
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44 const TInt KKeyToMatchNorth = 78; |
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45 const TInt KKeyToMatchSouth = 83; |
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46 const TInt KKeyToMatchWest = 87; |
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47 const TInt KKeyToMatchEast = 69; |
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48 |
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49 const TInt KNumFields = 3; // value, degree, cardinal |
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50 |
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51 const TInt KLatitudeMaxLength = 7; // DD.DDDD |
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52 const TInt KLatitudeMaxDecimals = 4; |
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53 const TInt KLongitudeMaxLength = 8; // DDD.DDDD |
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54 const TInt KLongitudeMaxDecimals = 4; |
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55 |
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56 const TReal KLatitudeMaxLimit = 90; |
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57 const TReal KLongitudeMaxLimit = 180; |
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58 |
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59 const TInt KNumCardinalSymbols = 3; // NS / WE + empty |
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60 |
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61 _LIT(KEmptyDegreeMark, ""); |
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62 |
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63 #if defined(_DEBUG) |
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64 /// Panic codes for CLmkCoordinateEditor |
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65 enum TPanicCode |
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66 { |
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67 EPanicUnknownEditorType |
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68 }; |
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69 |
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70 void Panic(TPanicCode aReason) |
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71 { |
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72 _LIT(KPanicText, "CLmkCoordinateEditor"); |
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73 User::Panic(KPanicText, aReason); |
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74 } |
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75 #endif // _DEBUG |
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76 |
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77 } // namespace |
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78 |
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79 // ============================ MEMBER FUNCTIONS ============================== |
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80 |
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81 // ---------------------------------------------------------------------------- |
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82 // CLmkCoordinateEditor::CLmkCoordinateEditor |
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83 // C++ default constructor can NOT contain any code, that |
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84 // might leave. |
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85 // ---------------------------------------------------------------------------- |
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86 // |
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87 CLmkCoordinateEditor::CLmkCoordinateEditor() |
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88 { |
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89 } |
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90 |
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91 // ---------------------------------------------------------------------------- |
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92 // CLmkCoordinateEditor::~CLmkCoordinateEditor |
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93 // ---------------------------------------------------------------------------- |
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94 // |
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95 CLmkCoordinateEditor::~CLmkCoordinateEditor() |
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96 { |
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97 delete iDegreeMark; |
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98 } |
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99 |
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100 // ---------------------------------------------------------------------------- |
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101 // CLmkCoordinateEditor::ConstructL |
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102 // Symbian 2nd phase constructor can leave. |
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103 // ---------------------------------------------------------------------------- |
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104 // |
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105 void CLmkCoordinateEditor::ConstructL( |
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106 TReal aInitialValue, |
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107 CLmkCoordinateEditor::TEditorType aType) |
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108 { |
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109 iEditorType = aType; |
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110 |
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111 TInt maxLength = 0, maxDecimals = 0; |
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112 TReal maxLimit = 0; |
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113 switch( iEditorType ) |
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114 { |
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115 case ELatitudeEditor: |
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116 { |
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117 maxLength = KLatitudeMaxLength; |
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118 maxDecimals = KLatitudeMaxDecimals; |
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119 maxLimit = KLatitudeMaxLimit; |
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120 break; |
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121 } |
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122 case ELongitudeEditor: |
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123 { |
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124 maxLength = KLongitudeMaxLength; |
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125 maxDecimals = KLongitudeMaxDecimals; |
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126 maxLimit = KLongitudeMaxLimit; |
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127 break; |
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128 } |
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129 default: |
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130 { |
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131 __ASSERT_DEBUG(EFalse, Panic(EPanicUnknownEditorType)); |
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132 break; |
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133 } |
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134 } |
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135 |
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136 // create float field |
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137 BaseConstructL(KNumFields); |
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138 |
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139 if (!AknLayoutUtils::LayoutMirrored()) |
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140 { |
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141 ConstructValueFieldL(maxLength, maxDecimals); |
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142 ConstructDegreeMarkFieldL(); |
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143 ConstructCardinalPointFieldL(); |
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144 } |
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145 else |
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146 { |
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147 ConstructCardinalPointFieldL(); |
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148 ConstructValueFieldL(maxLength, maxDecimals); |
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149 ConstructDegreeMarkFieldL(); |
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150 } |
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151 |
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152 SetCardinal(DefaultCardinal()); |
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153 SetLimits(0, maxLimit); |
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154 SetNumber(aInitialValue); |
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155 ShowDegreeAndCardinal(!Math::IsNaN(aInitialValue)); |
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156 } |
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157 |
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158 // ---------------------------------------------------------------------------- |
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159 // CLmkCoordinateEditor::ConstructDegreeMarkFieldL |
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160 // ---------------------------------------------------------------------------- |
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161 // |
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162 void CLmkCoordinateEditor::ConstructDegreeMarkFieldL() |
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163 { |
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164 iDegreeMark = StringLoader::LoadL( R_LMK_DEGREE_MARK, iCoeEnv ); |
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165 iDegreeField = CLmkMfneSeparator::NewL(iDegreeMark->Des()); |
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166 AddField(iDegreeField); |
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167 } |
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168 |
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169 // ---------------------------------------------------------------------------- |
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170 // CLmkCoordinateEditor::ConstructCardinalPointFieldL |
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171 // ---------------------------------------------------------------------------- |
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172 // |
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173 void CLmkCoordinateEditor::ConstructCardinalPointFieldL() |
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174 { |
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175 HBufC* text = NULL; |
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176 iCardinalField = CEikMfneSymbol::NewL(KNumCardinalSymbols); |
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177 |
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178 // add empty cardinal |
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179 text = HBufC::NewLC(1); |
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180 iCardinalField->AddSymbolicItem( |
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181 CEikMfneSymbol::CItem::NewL(ECardinalNone, KKeyToMatchEmptyCardinal, text), |
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182 ETrue); |
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183 CleanupStack::Pop(text); |
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184 |
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185 // read and add cardinals |
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186 if ( iEditorType == ELatitudeEditor ) |
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187 { |
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188 text = StringLoader::LoadLC(R_LMK_CARDINAL_POINT_N, iCoeEnv ); |
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189 iCardinalField->AddSymbolicItem( |
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190 CEikMfneSymbol::CItem::NewL(ECardinalNorth, KKeyToMatchNorth, text), |
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191 EFalse); |
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192 CleanupStack::Pop(text); |
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193 |
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194 text = StringLoader::LoadLC(R_LMK_CARDINAL_POINT_S, iCoeEnv ); |
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195 iCardinalField->AddSymbolicItem( |
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196 CEikMfneSymbol::CItem::NewL(ECardinalSouth, KKeyToMatchSouth, text), |
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197 EFalse); |
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198 CleanupStack::Pop(text); |
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199 } |
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200 else |
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201 { |
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202 text = StringLoader::LoadLC(R_LMK_CARDINAL_POINT_E, iCoeEnv ); |
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203 iCardinalField->AddSymbolicItem( |
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204 CEikMfneSymbol::CItem::NewL(ECardinalEast, KKeyToMatchEast, text), |
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205 EFalse); |
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206 CleanupStack::Pop(text); |
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207 |
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208 text = StringLoader::LoadLC(R_LMK_CARDINAL_POINT_W, iCoeEnv ); |
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209 iCardinalField->AddSymbolicItem( |
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210 CEikMfneSymbol::CItem::NewL(ECardinalWest, KKeyToMatchWest, text), |
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211 EFalse); |
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212 CleanupStack::Pop(text); |
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213 } |
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214 |
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215 AddField(iCardinalField); |
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216 } |
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217 |
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218 // ---------------------------------------------------- |
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219 // CLmkCoordinateEditor::Number |
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220 // ---------------------------------------------------- |
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221 // |
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222 TReal CLmkCoordinateEditor::Number() const |
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223 { |
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224 TReal coord = CLmkFloatEditor::Number(); |
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225 if (Math::IsNaN(coord)) |
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226 { |
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227 return coord; |
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228 } |
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229 |
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230 // South and West coordinates are negative |
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231 switch(Cardinal()) |
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232 { |
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233 case ECardinalSouth: |
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234 case ECardinalWest: |
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235 { |
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236 coord = -coord; |
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237 break; |
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238 } |
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239 default: |
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240 break; |
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241 } |
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242 |
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243 return coord; |
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244 } |
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245 |
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246 // ---------------------------------------------------- |
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247 // CLmkCoordinateEditor::SetNumber |
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248 // ---------------------------------------------------- |
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249 // |
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250 void CLmkCoordinateEditor::SetNumber(TReal aNumber) |
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251 { |
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252 if (!Math::IsNaN(aNumber)) |
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253 { |
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254 // set cardinal point according to number sign |
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255 // zero belongs to positive cardinals |
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256 TCardinalPoint cardinalId = ECardinalNone; |
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257 if (iEditorType == ELatitudeEditor) |
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258 { |
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259 cardinalId = (aNumber >= 0) ? ECardinalNorth : ECardinalSouth; |
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260 } |
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261 else // ELongitudeEditor |
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262 { |
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263 cardinalId = (aNumber >= 0) ? ECardinalEast : ECardinalWest; |
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264 } |
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265 SetCardinal(cardinalId); |
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266 ShowDegreeAndCardinal(ETrue); |
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267 CLmkFloatEditor::SetNumber(Abs(aNumber)); |
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268 } |
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269 else |
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270 { |
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271 ShowDegreeAndCardinal(EFalse); |
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272 CLmkFloatEditor::SetNumber(aNumber); // nan |
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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 // CLmkCoordinateEditor::SetCardinal |
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278 // ---------------------------------------------------- |
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279 // |
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280 void CLmkCoordinateEditor::SetCardinal(TCardinalPoint aCardinalId) |
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281 { |
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282 iCardinalField->SetCurrentSymbolicItemToId(aCardinalId); |
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283 CheckEastLongitude(); |
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284 } |
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285 |
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286 // ---------------------------------------------------- |
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287 // CLmkCoordinateEditor::Cardinal |
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288 // ---------------------------------------------------- |
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289 // |
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290 CLmkCoordinateEditor::TCardinalPoint CLmkCoordinateEditor::Cardinal() const |
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291 { |
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292 return (TCardinalPoint) iCardinalField->IdOfCurrentSymbolicItem(); |
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293 } |
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294 |
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295 // ---------------------------------------------------- |
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296 // CLmkCoordinateEditor::DefaultCardinal |
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297 // ---------------------------------------------------- |
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298 // |
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299 CLmkCoordinateEditor::TCardinalPoint CLmkCoordinateEditor::DefaultCardinal() |
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300 { |
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301 return (iEditorType == ELatitudeEditor) ? ECardinalNorth : ECardinalEast; |
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302 } |
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303 |
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304 // ---------------------------------------------------- |
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305 // CLmkCoordinateEditor::CheckEastLongitude |
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306 // Abs(180) is allowed only for West |
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307 // ---------------------------------------------------- |
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308 // |
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309 void CLmkCoordinateEditor::CheckEastLongitude() |
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310 { |
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311 if (Cardinal() == ECardinalEast && |
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312 CLmkFloatEditor::Number() == KLongitudeMaxLimit) |
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313 { |
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314 SetCardinal(ECardinalWest); |
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315 } |
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316 } |
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317 |
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318 // ---------------------------------------------------- |
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319 // CLmkCoordinateEditor::ShowDegreeAndCardinal |
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320 // ---------------------------------------------------- |
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321 // |
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322 void CLmkCoordinateEditor::ShowDegreeAndCardinal(TBool aVisible) |
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323 { |
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324 if (aVisible) |
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325 { |
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326 if (iDegreeField->Text() == KEmptyDegreeMark) |
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327 { |
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328 TInt err = KErrNone; |
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329 TRAP(err, iDegreeField->SetTextL(*iDegreeMark)); |
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330 } |
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331 |
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332 if (Cardinal() == ECardinalNone) |
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333 { |
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334 SetCardinal(DefaultCardinal()); |
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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 err = KErrNone; |
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340 TRAP(err, iDegreeField->SetTextL(KEmptyDegreeMark)); |
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341 SetCardinal(ECardinalNone); |
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342 } |
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343 } |
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344 |
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345 // ---------------------------------------------------- |
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346 // CLmkCoordinateEditor::HandleEnter |
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347 // ---------------------------------------------------- |
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348 // |
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349 void CLmkCoordinateEditor::HandleEnter() |
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350 { |
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351 ShowDegreeAndCardinal(ETrue); |
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352 CLmkFloatEditor::HandleEnter(); |
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353 } |
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354 |
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355 // ---------------------------------------------------- |
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356 // CLmkCoordinateEditor::HandleExit |
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357 // ---------------------------------------------------- |
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358 // |
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359 void CLmkCoordinateEditor::HandleExit() |
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360 { |
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361 ShowDegreeAndCardinal(!IsNan()); |
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362 CLmkFloatEditor::HandleExit(); |
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363 } |
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364 |
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365 // ---------------------------------------------------- |
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366 // CLmkCoordinateEditor::HandleValueChanged |
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367 // ---------------------------------------------------- |
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368 // |
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369 void CLmkCoordinateEditor::HandleValueChanged() |
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370 { |
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371 CheckEastLongitude(); |
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372 CLmkFloatEditor::HandleValueChanged(); |
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373 } |
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374 |
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375 // ---------------------------------------------------- |
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376 // CLmkCoordinateEditor::HandleCustomFieldChanged |
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377 // ---------------------------------------------------- |
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378 // |
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379 void CLmkCoordinateEditor::HandleCustomFieldChanged(TInt aFieldIndex) |
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380 { |
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381 if (Field(aFieldIndex) == iCardinalField) |
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382 { |
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383 if (Cardinal() == ECardinalNone) |
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384 { |
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385 // cycle from empty cardinal |
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386 SetCardinal(DefaultCardinal()); |
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387 } |
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388 else |
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389 { |
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390 CheckEastLongitude(); |
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391 } |
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392 } |
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393 CLmkFloatEditor::HandleCustomFieldChanged(aFieldIndex); |
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394 } |
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395 |
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396 // End of File |
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