|
1 /* |
|
2 * Copyright (c) 1997-2001 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: |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 #ifndef __EIKFPNE_H__ |
|
20 #define __EIKFPNE_H__ |
|
21 |
|
22 #ifndef __EIKEDWIN_H__ |
|
23 #include <eikedwin.h> |
|
24 #endif |
|
25 |
|
26 #ifndef __AKNNUMEDWIN_H__ |
|
27 #include <aknnumed.h> |
|
28 #endif |
|
29 |
|
30 /** |
|
31 * This class presents an editor modifying a real. The decimal place can occur anywhere. |
|
32 * Exponential notation is allowed. |
|
33 * |
|
34 * Validation, consisting of a check that the contents are parsable as a number |
|
35 * (using TLex::Val()) and a range check, is carried out when PrepareForFocusLossL is called. |
|
36 * Invalid contents cause a leave of that method. |
|
37 * |
|
38 * Value() only returns a value corresponding reliably to the value in the editor after a |
|
39 * non-leaving call to PrepareForFocusLossL. |
|
40 * |
|
41 */ |
|
42 class CEikFloatingPointEditor : public CAknNumericEdwin |
|
43 { |
|
44 public: |
|
45 /** |
|
46 * C++ constructor |
|
47 */ |
|
48 IMPORT_C CEikFloatingPointEditor(); |
|
49 /** |
|
50 * 2nd stage constructor |
|
51 */ |
|
52 IMPORT_C void ConstructL(const TReal& aMin,const TReal& aMax,TInt aTextLimit); |
|
53 /** |
|
54 * Read out the value from the editor as a Real. Value can only be relied on after |
|
55 * a non-leaving call to PrepareForFocusLossL(). |
|
56 * |
|
57 * @return Value in the editor |
|
58 */ |
|
59 IMPORT_C TReal Value() const; |
|
60 /** |
|
61 * Read out the value from the editor as a Real. |
|
62 * @return Validation status of the current value |
|
63 */ |
|
64 IMPORT_C TValidationStatus GetValueAsReal( TReal& aValue ); |
|
65 /** |
|
66 * Set the value in the editor. |
|
67 * |
|
68 * @param aValue pointer to value to set |
|
69 */ |
|
70 IMPORT_C void SetValueL(const TReal* aValue); |
|
71 /** |
|
72 * Set minimum and maximum valid values. |
|
73 * |
|
74 * @param aMin TInt minimum value |
|
75 * @param aMax TInt maximum value |
|
76 */ |
|
77 IMPORT_C void SetMinMax(TReal aMin,TReal aMax); |
|
78 /** |
|
79 * Get minimum and maximum valid values. |
|
80 * |
|
81 * @param aMin TReal& minimum value |
|
82 * @param aMax TReal& maximum value |
|
83 */ |
|
84 IMPORT_C void GetMinMax(TReal& aMin,TReal& aMax) const; |
|
85 public: // framework |
|
86 /** |
|
87 * From resource constructor. Refer to eikon.rh for the FLPTED resource structure |
|
88 * |
|
89 * @param aReader Resource reader positioned at a FLPTED resource location |
|
90 */ |
|
91 IMPORT_C virtual void ConstructFromResourceL(TResourceReader& aReader); |
|
92 /** |
|
93 * Called by framework when focus is being taken off editor. May be called |
|
94 * by client code. |
|
95 */ |
|
96 IMPORT_C virtual void PrepareForFocusLossL(); |
|
97 /** |
|
98 * Sets the input capabilities of the editor |
|
99 */ |
|
100 IMPORT_C virtual TCoeInputCapabilities InputCapabilities() const; |
|
101 |
|
102 |
|
103 /** |
|
104 * Specific Key handling for numeric editor |
|
105 */ |
|
106 IMPORT_C virtual TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType); |
|
107 |
|
108 /** |
|
109 * Update contents of editor on certain resource change events |
|
110 */ |
|
111 IMPORT_C virtual void HandleResourceChange(TInt aType); |
|
112 |
|
113 /** |
|
114 * From CCoeControl. |
|
115 * Handles pointer events |
|
116 * @param aPointerEvent The pointer event. |
|
117 */ |
|
118 IMPORT_C void HandlePointerEventL(const TPointerEvent& aPointerEvent); |
|
119 private: |
|
120 /** |
|
121 * From CAknControl |
|
122 */ |
|
123 IMPORT_C void* ExtensionInterface( TUid aInterface ); |
|
124 private: // from CEikEdwin |
|
125 IMPORT_C void Reserved_3(); |
|
126 |
|
127 private: |
|
128 TReal iValue; |
|
129 TReal iMin; |
|
130 TReal iMax; |
|
131 TInt iSpare; |
|
132 }; |
|
133 |
|
134 |
|
135 /** |
|
136 * This class presents an editor modifying a real. A fixed number of decimal places is |
|
137 * permitted, set by API. Exponential notation is not permitted. |
|
138 * |
|
139 * Validation, consisting of a check that the contents are parsable as a number |
|
140 * (using TLex::Val()) and a range check, is carried out when PrepareForFocusLossL is called. |
|
141 * Invalid contents cause a leave of that method. |
|
142 * |
|
143 * Value() only returns a value corresponding reliably to the value in the editor after a |
|
144 * non-leaving call to PrepareForFocusLossL. |
|
145 * |
|
146 * All values, defaults, minima and maxima set by API or resource are TInts. The Real value |
|
147 * is obtained by dividing by 10^<number of decimal places> |
|
148 * |
|
149 * The number of characters in the editor is calculated from the number of allowed decimal places. |
|
150 * TODO but there is a bug - cannot handle + or - signs in front, nor missing leading 0s |
|
151 * before the decimal place. |
|
152 */ |
|
153 class CEikFixedPointEditor : public CAknNumericEdwin |
|
154 { |
|
155 public: |
|
156 /** |
|
157 * C++ constructor |
|
158 */ |
|
159 IMPORT_C CEikFixedPointEditor(); |
|
160 /** |
|
161 * 2nd stage Constructor |
|
162 */ |
|
163 IMPORT_C void ConstructL(TInt aMin,TInt aMax); |
|
164 /** |
|
165 * Access the value in the editor. The returned value is multiplied by 10^(decimal places) |
|
166 * before formatting to text in the editor. |
|
167 * |
|
168 * The value is reliable only immediately after setting and after a non-leaving call to |
|
169 * PrepareForFocusLossL |
|
170 * |
|
171 * @return TInt current value in the editor. |
|
172 */ |
|
173 IMPORT_C TInt Value() const; |
|
174 /** |
|
175 * Read out the value from the editor as a integer. |
|
176 * @return Validation status of the current value |
|
177 */ |
|
178 IMPORT_C TValidationStatus GetValueAsInteger( TInt& aValue ); |
|
179 /** |
|
180 * Set the value in the editor. The passed value is divided by 10^(decimal places) |
|
181 * before formatting to text in the editor. |
|
182 * |
|
183 * @param TInt* pointer to value to set |
|
184 */ |
|
185 IMPORT_C void SetValueL(const TInt* aValue); |
|
186 /** |
|
187 * Set minimum and maximum valid values. |
|
188 * |
|
189 * @param aMin TInt minimum value multiplied by 10^(number of decimal places) |
|
190 * @param aMax TInt maximum value multiplied by 10^(number of decimal places) |
|
191 */ |
|
192 IMPORT_C void SetMinMax(TInt aMin, TInt aMax); |
|
193 /** |
|
194 * Get minimum and maximum valid values. |
|
195 * |
|
196 * @param aMin TInt& minimum value multiplied by 10^(number of decimal places) |
|
197 * @param aMax TInt& maximum value multiplied by 10^(number of decimal places) |
|
198 */ |
|
199 IMPORT_C void GetMinMax(TInt& aMin, TInt& aMax) const; |
|
200 /** |
|
201 * This sets the number of allowed decimal places in the displayed text. The number |
|
202 * is also used to set the power of 10 by which all integer values in the API are divided |
|
203 * by before use, and the power of 10 by which all displayed values are multiplied by |
|
204 * when turning them into integers. |
|
205 * |
|
206 * @param TInt number of decimal places displayed |
|
207 */ |
|
208 IMPORT_C void SetDecimalPlaces(TInt aDecimalPlaces); |
|
209 /** |
|
210 * This returns the number of allowed decimal places in the displayed text. The number |
|
211 * is that used to set the power of 10 by which all integer values in the API are divided |
|
212 * by before use, and the power of 10 by which all displayed values are multiplied by |
|
213 * when turning them into integers. |
|
214 * |
|
215 * @return TInt number of decimal places displayed |
|
216 */ |
|
217 IMPORT_C TInt DecimalPlaces() const; |
|
218 public: // framework |
|
219 /** |
|
220 * From resource constructor. Refer to eikon.rh for the FIXPTED resource structure |
|
221 * |
|
222 * @param aReader Resource reader positioned at FIXPTED resource location |
|
223 */ |
|
224 IMPORT_C virtual void ConstructFromResourceL(TResourceReader& aReader); |
|
225 /** |
|
226 * Called by framework when focus is being taken off editor. May be called |
|
227 * by client code. |
|
228 */ |
|
229 IMPORT_C virtual void PrepareForFocusLossL(); |
|
230 /** |
|
231 * Sets the input capabilities of the editor |
|
232 */ |
|
233 IMPORT_C virtual TCoeInputCapabilities InputCapabilities() const; |
|
234 |
|
235 /** |
|
236 * Specific Key handling for numeric editor |
|
237 */ |
|
238 IMPORT_C virtual TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType); |
|
239 |
|
240 /** |
|
241 * Update contents of editor on certain resource change events |
|
242 */ |
|
243 IMPORT_C virtual void HandleResourceChange(TInt aType); |
|
244 |
|
245 /** |
|
246 * From CCoeControl. |
|
247 * Handles pointer events |
|
248 * @param aPointerEvent The pointer event. |
|
249 */ |
|
250 IMPORT_C void HandlePointerEventL(const TPointerEvent& aPointerEvent); |
|
251 |
|
252 private: |
|
253 /** |
|
254 * Calculates the maximum number of characters needed by the editor. Returned values |
|
255 * is used internally to set CEikEdwin::iTextLimit |
|
256 */ |
|
257 TInt RequiredNumberOfCharacters() const; |
|
258 private: |
|
259 /** |
|
260 * From CAknControl |
|
261 */ |
|
262 IMPORT_C void* ExtensionInterface( TUid aInterface ); |
|
263 private: // from CEikEdwin |
|
264 IMPORT_C void Reserved_3(); |
|
265 private: |
|
266 TInt iValue; |
|
267 TInt iMin; |
|
268 TInt iMax; |
|
269 TInt iDecimalPlaces; |
|
270 TInt iSpare; |
|
271 }; |
|
272 #endif |