1 /* |
|
2 * Copyright (c) 2000 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: Frequency number handling for manual tuning dialog |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 // INCLUDE FILES |
|
20 |
|
21 #include <aknappui.h> |
|
22 #include <aknsoundsystem.h> |
|
23 #include <AknTextDecorationMetrics.h> |
|
24 #include <numberconversion.h> |
|
25 #include <EIKCTL.rsg> |
|
26 |
|
27 #include "fmradiofrequencynumber.h" |
|
28 #include "debug.h" |
|
29 |
|
30 // ================= MEMBER FUNCTIONS ======================= |
|
31 |
|
32 // C++ default constructor can NOT contain any code, that |
|
33 // might leave. |
|
34 // |
|
35 CFMRadioFrequencyNumber::CFMRadioFrequencyNumber(TInt aMinimumValue, TInt aMaximumValue, TUint32 aFlags) |
|
36 : iMinimumValue(aMinimumValue), iMaximumValue(aMaximumValue), iFlags(aFlags) |
|
37 { |
|
38 // Get maximum number of digits. |
|
39 TBuf<16> maxText; |
|
40 maxText.AppendNum(static_cast<TInt64>(aMaximumValue)); |
|
41 iMaxDigits = maxText.Length(); |
|
42 } |
|
43 |
|
44 // EPOC default constructor can leave. |
|
45 void CFMRadioFrequencyNumber::ConstructL(const CFont& aFont, TInt aInitialValue) |
|
46 { |
|
47 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::ConstructL") ) ); |
|
48 // Init text field containing the value. |
|
49 iText = HBufC::NewL(iMaxDigits); |
|
50 SetValue(aInitialValue, aFont); |
|
51 } |
|
52 |
|
53 // Two-phased constructor. |
|
54 CFMRadioFrequencyNumber* CFMRadioFrequencyNumber::NewL(const CFont& aFont, TInt aMinimumValue, TInt aMaximumValue, TInt aInitialValue, TUint32 aFlags) |
|
55 { |
|
56 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::NewL") ) ); |
|
57 CFMRadioFrequencyNumber* self = new (ELeave) CFMRadioFrequencyNumber(aMinimumValue, aMaximumValue, aFlags); |
|
58 CleanupStack::PushL(self); |
|
59 self->ConstructL(aFont, aInitialValue); |
|
60 CleanupStack::Pop(); |
|
61 return self; |
|
62 } |
|
63 |
|
64 |
|
65 // Destructor |
|
66 CFMRadioFrequencyNumber::~CFMRadioFrequencyNumber() |
|
67 { |
|
68 delete iText; |
|
69 } |
|
70 |
|
71 // --------------------------------------------------------- |
|
72 // CFMRadioFrequencyNumber::MaximumWidthInPixels |
|
73 // TInt addedWith is calculated same way than in TInt CEikMfneField::AdditionalWidthForHighlights, |
|
74 // which is public but not exported method. |
|
75 // (other items were commented in a header). |
|
76 // --------------------------------------------------------- |
|
77 // |
|
78 TInt CFMRadioFrequencyNumber::MaximumWidthInPixels(const CFont& aFont, TBool /*aShrinkToMinimumSize*/) |
|
79 { |
|
80 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::MaximumWidthInPixels") ) ); |
|
81 TInt addedWidth = 0; |
|
82 if ( IsEditable() ) |
|
83 { |
|
84 TInt rightHighlight = 0; |
|
85 TAknTextDecorationMetrics metrics( &aFont ); |
|
86 // Width is increased only by leftHighlight. This is a compromise in that glyphs already have |
|
87 // spacing within them to achieve character spacing. This spacing is generally (for numbers) on the right. |
|
88 metrics.GetLeftAndRightMargins( addedWidth, rightHighlight ); // rightHighlight is not used |
|
89 } |
|
90 |
|
91 return (iMaxDigits * TFindWidthOfWidestDigitType(iDigitType).MaximumWidthInPixels(aFont)) + addedWidth; |
|
92 } |
|
93 |
|
94 |
|
95 // --------------------------------------------------------- |
|
96 // CFMRadioFrequencyNumber::InputCapabilities |
|
97 // ?implementation_description |
|
98 // (other items were commented in a header). |
|
99 // --------------------------------------------------------- |
|
100 // |
|
101 TCoeInputCapabilities CFMRadioFrequencyNumber::InputCapabilities() const |
|
102 { |
|
103 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::InputCapabilities") ) ); |
|
104 return TCoeInputCapabilities::EWesternNumericIntegerPositive; |
|
105 } |
|
106 |
|
107 // --------------------------------------------------------- |
|
108 // CFMRadioFrequencyNumber::Text |
|
109 // ?implementation_description |
|
110 // (other items were commented in a header). |
|
111 // --------------------------------------------------------- |
|
112 // |
|
113 const TDesC& CFMRadioFrequencyNumber::Text() const |
|
114 { |
|
115 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::Text") ) ); |
|
116 |
|
117 if (iFlags & EIsUninitialised) |
|
118 { |
|
119 return KNullDesC(); |
|
120 } |
|
121 |
|
122 return *iText; |
|
123 } |
|
124 |
|
125 // --------------------------------------------------------- |
|
126 // CFMRadioFrequencyNumber::SetValue |
|
127 // ?implementation_description |
|
128 // (other items were commented in a header). |
|
129 // --------------------------------------------------------- |
|
130 // |
|
131 void CFMRadioFrequencyNumber::SetValue(TInt aValue, const CFont& aFont) |
|
132 { |
|
133 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::SetValue") ) ); |
|
134 iFlags &= ~EIsUninitialised; |
|
135 TPtr text = iText->Des(); |
|
136 text.SetLength(0); |
|
137 TInt firstUnsetCharacter = text.Length(); |
|
138 text.SetLength(firstUnsetCharacter + iMaxDigits); |
|
139 TInt lastUnsetCharacter = text.Length() - 1; |
|
140 |
|
141 if (aValue == 0) |
|
142 { |
|
143 text[lastUnsetCharacter--] = TText(iDigitType); |
|
144 } |
|
145 else |
|
146 { |
|
147 for (; aValue; aValue/=10) |
|
148 { |
|
149 text[lastUnsetCharacter--] = (TText)(TText(iDigitType) + (aValue%10)); |
|
150 } |
|
151 } |
|
152 |
|
153 if (lastUnsetCharacter >= firstUnsetCharacter) |
|
154 { |
|
155 if (iFlags & EFillWithLeadingZeros) |
|
156 { |
|
157 while (lastUnsetCharacter >= firstUnsetCharacter) |
|
158 { |
|
159 text[lastUnsetCharacter--] = TText(iDigitType); |
|
160 } |
|
161 } |
|
162 else |
|
163 { |
|
164 text.Delete(firstUnsetCharacter, (lastUnsetCharacter + 1) - firstUnsetCharacter); |
|
165 } |
|
166 } |
|
167 |
|
168 if (iFlags & EPreserveOldWidthBeforeEditing) |
|
169 { |
|
170 iMinimumWidthInPixels = aFont.TextWidthInPixels(Text()); |
|
171 } |
|
172 } |
|
173 |
|
174 // --------------------------------------------------------- |
|
175 // CFMRadioFrequencyNumber::Value |
|
176 // ?implementation_description |
|
177 // (other items were commented in a header). |
|
178 // --------------------------------------------------------- |
|
179 // |
|
180 TInt CFMRadioFrequencyNumber::Value() const |
|
181 { |
|
182 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::Value") ) ); |
|
183 if (iText->Length() == 0) |
|
184 { |
|
185 CAknKeySoundSystem* soundPlayer = (static_cast<CAknAppUi*>(CEikonEnv::Static()->AppUi()))->KeySounds(); |
|
186 if (soundPlayer) |
|
187 { |
|
188 soundPlayer->PlaySound(EAvkonSIDWarningTone); |
|
189 } |
|
190 CBaActiveScheduler::LeaveNoAlert(); |
|
191 } |
|
192 |
|
193 return ValueFromText(); |
|
194 } |
|
195 |
|
196 // --------------------------------------------------------- |
|
197 // CFMRadioFrequencyNumber::IsValid |
|
198 // ?implementation_description |
|
199 // (other items were commented in a header). |
|
200 // --------------------------------------------------------- |
|
201 // |
|
202 TBool CFMRadioFrequencyNumber::IsValid() const |
|
203 { |
|
204 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::IsValid") ) ); |
|
205 return (iText->Length() != 0); |
|
206 } |
|
207 |
|
208 // --------------------------------------------------------- |
|
209 // CFMRadioFrequencyNumber::IsEditable |
|
210 // ?implementation_description |
|
211 // (other items were commented in a header). |
|
212 // --------------------------------------------------------- |
|
213 // |
|
214 TBool CFMRadioFrequencyNumber::IsEditable() const |
|
215 { |
|
216 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::IsEditable") ) ); |
|
217 return ETrue; |
|
218 } |
|
219 |
|
220 // --------------------------------------------------------- |
|
221 // CFMRadioFrequencyNumber::HighlightType |
|
222 // ?implementation_description |
|
223 // (other items were commented in a header). |
|
224 // --------------------------------------------------------- |
|
225 // |
|
226 CEikMfneField::THighlightType CFMRadioFrequencyNumber::HighlightType() const |
|
227 { |
|
228 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::HighlightType") ) ); |
|
229 return (iFlags & EIsBeingEditedWithCursor) ? ECursor : EInverseVideo; |
|
230 } |
|
231 |
|
232 // --------------------------------------------------------- |
|
233 // CFMRadioFrequencyNumber::HandleKey |
|
234 // ?implementation_description |
|
235 // (other items were commented in a header). |
|
236 // --------------------------------------------------------- |
|
237 // |
|
238 void CFMRadioFrequencyNumber::HandleKey(const CFont& /*aFont*/, const TKeyEvent& aKeyEvent, TBool /*aInterpretLeftAndRightAsEarEvents*/, TBool& aDataAltered, TInt& aHighlightIncrement) |
|
239 { |
|
240 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::HandleKey") ) ); |
|
241 TChar ch = aKeyEvent.iCode; |
|
242 TPtr text = iText->Des(); |
|
243 TInt textLength = text.Length(); |
|
244 |
|
245 switch (ch) |
|
246 { |
|
247 case EKeyLeftArrow: |
|
248 case EKeyRightArrow: |
|
249 { |
|
250 HandleLeftOrRightArrow(ch, aDataAltered, aHighlightIncrement); |
|
251 break; |
|
252 } |
|
253 case EKeyBackspace: |
|
254 { |
|
255 if (textLength) |
|
256 { |
|
257 iFlags |= EIsBeingEditedWithCursor; |
|
258 text.SetLength(textLength-1); |
|
259 aDataAltered = ETrue; |
|
260 iFlags &= ~EIsUninitialised; |
|
261 } |
|
262 break; |
|
263 } |
|
264 default: |
|
265 { |
|
266 // Number key: |
|
267 if (ch.GetNumericValue() != KErrNotFound) |
|
268 { |
|
269 if (~iFlags & EIsBeingEditedWithCursor) |
|
270 { |
|
271 // If only one number field, do not change to cursor mode. |
|
272 if (iMaxDigits > 1) |
|
273 { |
|
274 iFlags |= EIsBeingEditedWithCursor; |
|
275 } |
|
276 text.SetLength(0); |
|
277 } |
|
278 |
|
279 TBuf<1> normCh; |
|
280 normCh.Append(ch); |
|
281 NumberConversion::ConvertDigits(normCh, iDigitType); |
|
282 text.Append(normCh[0]); |
|
283 aDataAltered = ETrue; |
|
284 iFlags &= ~EIsUninitialised; |
|
285 if (iText->Length() >= iMaxDigits) |
|
286 { |
|
287 aHighlightIncrement = 1; |
|
288 } |
|
289 } |
|
290 break; |
|
291 } |
|
292 } |
|
293 } |
|
294 |
|
295 // --------------------------------------------------------- |
|
296 // CFMRadioFrequencyNumber::HandleDeHighlight |
|
297 // ?implementation_description |
|
298 // (other items were commented in a header). |
|
299 // --------------------------------------------------------- |
|
300 // |
|
301 void CFMRadioFrequencyNumber::HandleDeHighlight(const CFont& aFont, CEikonEnv& aEikonEnv, TBool& aDataAltered, TBool& aError) |
|
302 { |
|
303 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::HandleDeHighlight") ) ); |
|
304 iFlags &= ~EIsBeingEditedWithCursor; |
|
305 |
|
306 if (iText->Length() == 0) |
|
307 { |
|
308 SetValue(iMaximumValue, aFont); |
|
309 aDataAltered = ETrue; |
|
310 aError = ETrue; |
|
311 aEikonEnv.InfoMsg(R_EIK_TBUF_NO_NUMBER_ENTERED); |
|
312 return; |
|
313 } |
|
314 |
|
315 TInt value = ValueFromText(); |
|
316 TBuf<128> oldText = *iText; |
|
317 TBool unInit = iFlags & EIsUninitialised; |
|
318 SetValue(value, aFont); |
|
319 |
|
320 if (oldText != *iText) |
|
321 { |
|
322 aDataAltered = ETrue; |
|
323 } |
|
324 else |
|
325 { |
|
326 if (unInit) |
|
327 { |
|
328 iFlags |= EIsUninitialised; |
|
329 } |
|
330 else |
|
331 { |
|
332 iFlags &= ~EIsUninitialised; |
|
333 } |
|
334 } |
|
335 } |
|
336 |
|
337 // --------------------------------------------------------- |
|
338 // CFMRadioFrequencyNumber::ValueFromText |
|
339 // ?implementation_description |
|
340 // (other items were commented in a header). |
|
341 // --------------------------------------------------------- |
|
342 // |
|
343 TInt CFMRadioFrequencyNumber::ValueFromText() const |
|
344 { |
|
345 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::ValueFromText") ) ); |
|
346 if (!iText->Length()) |
|
347 { |
|
348 return iMinimumValue; |
|
349 } |
|
350 |
|
351 TInt i = 0; |
|
352 TInt valueFromText = 0; |
|
353 TInt textLength = iText->Length(); |
|
354 |
|
355 for (; i<textLength; ++i) |
|
356 { |
|
357 TText digit = (*iText)[i]; |
|
358 valueFromText = (valueFromText * 10) + (TInt)(digit - TText(iDigitType)); |
|
359 } |
|
360 |
|
361 return valueFromText; |
|
362 } |
|
363 |
|
364 // --------------------------------------------------------- |
|
365 // CFMRadioFrequencyNumber::SetDigitType |
|
366 // ?implementation_description |
|
367 // (other items were commented in a header). |
|
368 // --------------------------------------------------------- |
|
369 // |
|
370 void CFMRadioFrequencyNumber::SetDigitType(TDigitType aDigitType, const CFont& aFont) |
|
371 { |
|
372 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::SetDigitType") ) ); |
|
373 TInt value = Value(); |
|
374 iDigitType = aDigitType; |
|
375 SetValue(value, aFont); |
|
376 } |
|
377 |
|
378 // --------------------------------------------------------- |
|
379 // CFMRadioFrequencyNumber::DigitType |
|
380 // ?implementation_description |
|
381 // (other items were commented in a header). |
|
382 // --------------------------------------------------------- |
|
383 // |
|
384 TDigitType CFMRadioFrequencyNumber::DigitType() const |
|
385 { |
|
386 FTRACE( FPrint( _L(" *** FM Radio -- CFMRadioFrequencyNumber::DigitType") ) ); |
|
387 return iDigitType; |
|
388 } |
|
389 |
|
390 // End of File |
|