1 /* |
|
2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: LandmarksUi Content File - |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 |
|
20 |
|
21 |
|
22 |
|
23 |
|
24 |
|
25 // INCLUDE FILES |
|
26 #include <eikmfne.h> |
|
27 |
|
28 #include <eikenv.h> |
|
29 #include <stringloader.h> |
|
30 #include <e32math.h> |
|
31 #include <AknUtils.h> |
|
32 |
|
33 #include <LmkUi.rsg> |
|
34 #include "landmarks.hrh" |
|
35 #include "LmkConsts.h" |
|
36 |
|
37 #include "CLmkMfneFloat.h" |
|
38 #include "CLmkDistanceEditor.h" |
|
39 #include <AknBidiTextUtils.h> |
|
40 |
|
41 // CONSTANTS |
|
42 /// Unnamed namespace for local definitions |
|
43 namespace { |
|
44 |
|
45 const TInt KKeyToMatchEmptyUnits = 0; |
|
46 |
|
47 const TInt KKeyToMatchMeters = 109; |
|
48 const TInt KKeyToMatchKilometers = 75; |
|
49 const TInt KKeyToMatchFeet = 87; |
|
50 const TInt KKeyToMatchMiles = 77; |
|
51 |
|
52 const TInt KNumMetricUnitSymbols = 2; |
|
53 const TInt KNumImperialUnitSymbols = 2; |
|
54 |
|
55 const TInt KMaxNumSignificantDigits = 7; // DDDDD.DD |
|
56 const TInt KMaxNumDecimalDigits = 2; |
|
57 const TInt KNumFields = 2; // float, Units |
|
58 } // namespace |
|
59 |
|
60 // ============================ MEMBER FUNCTIONS ============================== |
|
61 |
|
62 // ---------------------------------------------------------------------------- |
|
63 // CLmkDistanceEditor::CLmkDistanceEditor |
|
64 // C++ default constructor can NOT contain any code, that |
|
65 // might leave. |
|
66 // ---------------------------------------------------------------------------- |
|
67 // |
|
68 CLmkDistanceEditor::CLmkDistanceEditor() |
|
69 { |
|
70 } |
|
71 |
|
72 // ---------------------------------------------------------------------------- |
|
73 // CLmkDistanceEditor::ConstructL |
|
74 // Symbian 2nd phase constructor can leave. |
|
75 // ---------------------------------------------------------------------------- |
|
76 // |
|
77 void CLmkDistanceEditor::ConstructL( |
|
78 TReal32 aMinimumValue, |
|
79 TReal32 aMaximumValue, |
|
80 TReal32 aInitialValue) |
|
81 { |
|
82 iMinimumValue = aMinimumValue; |
|
83 iMaximumValue = aMaximumValue; |
|
84 |
|
85 // create float field |
|
86 BaseConstructL(KNumFields); |
|
87 |
|
88 if (!AknLayoutUtils::LayoutMirrored()) |
|
89 { |
|
90 ConstructValueFieldL(KMaxNumSignificantDigits, KMaxNumDecimalDigits); |
|
91 ConstructUnitFieldL(); |
|
92 } |
|
93 else |
|
94 { |
|
95 ConstructUnitFieldL(); |
|
96 ConstructValueFieldL(KMaxNumSignificantDigits, KMaxNumDecimalDigits); |
|
97 } |
|
98 |
|
99 // Init value |
|
100 SetUnit(DefaultUnit()); |
|
101 UpdateValueLimits(); |
|
102 SetNumber(aInitialValue); |
|
103 ShowUnits(!Math::IsNaN(aInitialValue)); |
|
104 } |
|
105 |
|
106 // ---------------------------------------------------------------------------- |
|
107 // CLmkDistanceEditor::ConstructUnitFieldL |
|
108 // ---------------------------------------------------------------------------- |
|
109 // |
|
110 void CLmkDistanceEditor::ConstructUnitFieldL() |
|
111 { |
|
112 TLocale locale; |
|
113 |
|
114 //create distance types |
|
115 TInt numUnitsymbols = KNumMetricUnitSymbols + 1; // +empty Units |
|
116 if (locale.UnitsGeneral() == EUnitsImperial) |
|
117 { |
|
118 numUnitsymbols += KNumImperialUnitSymbols; |
|
119 } |
|
120 |
|
121 iUnitsField = CEikMfneSymbol::NewL(numUnitsymbols); |
|
122 |
|
123 // create Units field |
|
124 HBufC* type = NULL; |
|
125 |
|
126 // add empty Units |
|
127 type = HBufC::NewLC(1); |
|
128 iUnitsField->AddSymbolicItem( |
|
129 CEikMfneSymbol::CItem::NewL(EUnitNone, KKeyToMatchEmptyUnits, type ), |
|
130 ETrue); |
|
131 CleanupStack::Pop(type); |
|
132 |
|
133 // add metric Units |
|
134 type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_M, iCoeEnv ); |
|
135 iUnitsField->AddSymbolicItem( |
|
136 CEikMfneSymbol::CItem::NewL( EUnitMeters, KKeyToMatchMeters, type ), |
|
137 EFalse); |
|
138 CleanupStack::Pop(type); |
|
139 |
|
140 type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_KM, iCoeEnv ); |
|
141 iUnitsField->AddSymbolicItem( |
|
142 CEikMfneSymbol::CItem::NewL( EUnitKilometers, KKeyToMatchKilometers, type ), |
|
143 EFalse); |
|
144 CleanupStack::Pop(type); |
|
145 |
|
146 // Add imperial Units for those who use them |
|
147 if ( locale.UnitsGeneral() == EUnitsImperial ) |
|
148 { |
|
149 type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_FT, iCoeEnv ); |
|
150 iUnitsField->AddSymbolicItem( |
|
151 CEikMfneSymbol::CItem::NewL( EUnitFeet, KKeyToMatchFeet, type ), |
|
152 EFalse); |
|
153 CleanupStack::Pop(type); |
|
154 |
|
155 type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_MI, iCoeEnv ); |
|
156 iUnitsField->AddSymbolicItem( |
|
157 CEikMfneSymbol::CItem::NewL( EUnitMiles, KKeyToMatchMiles, type ), |
|
158 EFalse); |
|
159 CleanupStack::Pop(type); |
|
160 } |
|
161 |
|
162 AddField(iUnitsField); |
|
163 } |
|
164 |
|
165 // ---------------------------------------------------------------------------- |
|
166 // CLmkDistanceEditor::~CLmkDistanceEditor |
|
167 // ---------------------------------------------------------------------------- |
|
168 // |
|
169 CLmkDistanceEditor::~CLmkDistanceEditor() |
|
170 { |
|
171 } |
|
172 |
|
173 // ---------------------------------------------------- |
|
174 // CLmkDistanceEditor::Number |
|
175 // ---------------------------------------------------- |
|
176 // |
|
177 TReal CLmkDistanceEditor::Number() const |
|
178 { |
|
179 return UnitsToMeters(CLmkFloatEditor::Number(), Unit()); |
|
180 } |
|
181 |
|
182 // ---------------------------------------------------- |
|
183 // CLmkDistanceEditor::SetNumber |
|
184 // ---------------------------------------------------- |
|
185 // |
|
186 void CLmkDistanceEditor::SetNumber(TReal aNumber) |
|
187 { |
|
188 ShowUnits(!Math::IsNaN(aNumber)); |
|
189 CLmkFloatEditor::SetNumber(MetersToUnits(aNumber, Unit())); |
|
190 } |
|
191 |
|
192 // ---------------------------------------------------- |
|
193 // CLmkDistanceEditor::SetUnit |
|
194 // ---------------------------------------------------- |
|
195 // |
|
196 void CLmkDistanceEditor::SetUnit(TDistanceUnit aUnitId) |
|
197 { |
|
198 iUnitsField->SetCurrentSymbolicItemToId(aUnitId); |
|
199 UpdateValueLimits(); |
|
200 } |
|
201 |
|
202 // ---------------------------------------------------- |
|
203 // CLmkDistanceEditor::Unit |
|
204 // ---------------------------------------------------- |
|
205 // |
|
206 CLmkDistanceEditor::TDistanceUnit CLmkDistanceEditor::Unit() const |
|
207 { |
|
208 return (TDistanceUnit) iUnitsField->IdOfCurrentSymbolicItem(); |
|
209 } |
|
210 |
|
211 // ---------------------------------------------------- |
|
212 // CLmkDistanceEditor::DefaultUnit |
|
213 // ---------------------------------------------------- |
|
214 // |
|
215 CLmkDistanceEditor::TDistanceUnit CLmkDistanceEditor::DefaultUnit() const |
|
216 { |
|
217 return EUnitMeters; |
|
218 } |
|
219 |
|
220 // ---------------------------------------------------- |
|
221 // CLmkDistanceEditor::UpdateValueLimits |
|
222 // ---------------------------------------------------- |
|
223 // |
|
224 void CLmkDistanceEditor::UpdateValueLimits() |
|
225 { |
|
226 if (Unit() != EUnitNone) |
|
227 { |
|
228 SetLimits( |
|
229 MetersToUnits(iMinimumValue, Unit()), |
|
230 MetersToUnits(iMaximumValue, Unit())); |
|
231 } |
|
232 } |
|
233 |
|
234 // ---------------------------------------------------- |
|
235 // CLmkDistanceEditor::MetersToUnits |
|
236 // ---------------------------------------------------- |
|
237 // |
|
238 TReal32 CLmkDistanceEditor::MetersToUnits( |
|
239 TReal32 aMeters, |
|
240 TDistanceUnit aToUnits) const |
|
241 { |
|
242 TRealX nan; |
|
243 nan.SetNaN(); |
|
244 |
|
245 if (Math::IsNaN(aMeters)) |
|
246 { |
|
247 return nan; |
|
248 } |
|
249 |
|
250 switch (aToUnits) |
|
251 { |
|
252 case EUnitMeters: |
|
253 return aMeters; |
|
254 case EUnitKilometers: |
|
255 return aMeters / KKilometerToMeter; |
|
256 case EUnitMiles: |
|
257 return aMeters / KMileToMeter; |
|
258 case EUnitFeet: |
|
259 return aMeters * KMetreToFoot; |
|
260 default: |
|
261 return nan; |
|
262 } |
|
263 } |
|
264 |
|
265 // ---------------------------------------------------- |
|
266 // CLmkDistanceEditor::UnitsToMeters |
|
267 // ---------------------------------------------------- |
|
268 // |
|
269 TReal32 CLmkDistanceEditor::UnitsToMeters( |
|
270 TReal32 aValue, |
|
271 TDistanceUnit aFromUnits) const |
|
272 { |
|
273 TRealX nan; |
|
274 nan.SetNaN(); |
|
275 |
|
276 if (Math::IsNaN(aValue)) |
|
277 { |
|
278 return nan; |
|
279 } |
|
280 |
|
281 switch (aFromUnits) |
|
282 { |
|
283 case EUnitMeters: |
|
284 return aValue; |
|
285 case EUnitKilometers: |
|
286 return aValue * KKilometerToMeter; |
|
287 case EUnitMiles: |
|
288 return aValue * KMileToMeter; |
|
289 case EUnitFeet: |
|
290 return aValue / KMetreToFoot; |
|
291 default: |
|
292 return nan; |
|
293 } |
|
294 } |
|
295 |
|
296 // ---------------------------------------------------- |
|
297 // CLmkDistanceEditor::ShowUnits |
|
298 // ---------------------------------------------------- |
|
299 // |
|
300 void CLmkDistanceEditor::ShowUnits(TBool aVisible) |
|
301 { |
|
302 if (aVisible) |
|
303 { |
|
304 if (Unit() == EUnitNone) |
|
305 { |
|
306 SetUnit(DefaultUnit()); |
|
307 } |
|
308 } |
|
309 else |
|
310 { |
|
311 SetUnit(EUnitNone); |
|
312 } |
|
313 } |
|
314 |
|
315 // ---------------------------------------------------- |
|
316 // CLmkDistanceEditor::HandleEnter |
|
317 // ---------------------------------------------------- |
|
318 // |
|
319 void CLmkDistanceEditor::HandleEnter() |
|
320 { |
|
321 ShowUnits(ETrue); |
|
322 CLmkFloatEditor::HandleEnter(); |
|
323 } |
|
324 |
|
325 // ---------------------------------------------------- |
|
326 // CLmkDistanceEditor::HandleExit |
|
327 // ---------------------------------------------------- |
|
328 // |
|
329 void CLmkDistanceEditor::HandleExit() |
|
330 { |
|
331 ShowUnits(!IsNan()); |
|
332 CLmkFloatEditor::HandleExit(); |
|
333 } |
|
334 |
|
335 // ---------------------------------------------------- |
|
336 // CLmkDistanceEditor::HandleCustomFieldChanged |
|
337 // ---------------------------------------------------- |
|
338 // |
|
339 void CLmkDistanceEditor::HandleCustomFieldChanged(TInt aFieldIndex) |
|
340 { |
|
341 if (Field(aFieldIndex) == iUnitsField) |
|
342 { |
|
343 if (Unit() == EUnitNone) |
|
344 { |
|
345 // cycle from empty unit |
|
346 SetUnit(DefaultUnit()); |
|
347 } |
|
348 else |
|
349 { |
|
350 UpdateValueLimits(); |
|
351 } |
|
352 } |
|
353 } |
|
354 |
|
355 // End of File |
|