classicui_plat/queries_api/inc/AknQueryValueDate.h
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     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: 
       
    15 *
       
    16 */
       
    17 
       
    18 // AknQueryValueDate.h
       
    19 //
       
    20 // Copyright (c) 2001 Symbian Ltd.  All rights reserved.
       
    21 //
       
    22 
       
    23 #if !defined(__AKNQUERYVALUEDATE_H__)
       
    24 #define __AKNQUERYVALUEDATE_H__
       
    25 
       
    26 #include <bamdesca.h>
       
    27 #include <eikdialg.h>
       
    28 #include "AknQueryValue.h"
       
    29 
       
    30 class CAknQueryValueDateArray;
       
    31 
       
    32 /**
       
    33  * Encapsulates a date value. Provides an interface to create a dialog
       
    34  * containing a time query control, which will edit the value. Optionally 
       
    35  * Allows the value to be changed by selecting from a list of values. 
       
    36  *
       
    37  */
       
    38 NONSHARABLE_CLASS(CAknQueryValueDate) : public CAknQueryValue
       
    39     {
       
    40 public:
       
    41     /**
       
    42      * Two-phased constructor.
       
    43      *
       
    44     */
       
    45 	IMPORT_C static CAknQueryValueDate* NewL();
       
    46 	
       
    47     /**
       
    48      * Two-phased constructor.
       
    49      *
       
    50     */	
       
    51 	IMPORT_C static CAknQueryValueDate* NewLC();
       
    52 
       
    53     /**
       
    54      * destructor
       
    55      *
       
    56     */
       
    57 	IMPORT_C virtual ~CAknQueryValueDate();
       
    58 	
       
    59     /**
       
    60      * Set the array.
       
    61      * 
       
    62      * @param aArray pointer to array, ownership is not passed
       
    63     */	
       
    64 	IMPORT_C void SetArrayL(const CAknQueryValueDateArray* aArray);
       
    65 	
       
    66     /**
       
    67      * Set the string used for the query caption to be a string other than the default.
       
    68      *
       
    69      * @param aResourceId		resource id of string to use for caption.
       
    70      *
       
    71     */	
       
    72 	IMPORT_C void SetQueryCaption(TInt aResourceId);
       
    73 	
       
    74     /**
       
    75      * Return the current value, which may have been set by the user
       
    76      *
       
    77     */	
       
    78 	IMPORT_C TTime Value() const;
       
    79 
       
    80 public: // from MAknQueryValue
       
    81     IMPORT_C virtual const MDesCArray* MdcArray() const;
       
    82     IMPORT_C virtual HBufC* CurrentValueTextLC();
       
    83     IMPORT_C virtual TInt CurrentValueIndex() const;
       
    84     IMPORT_C virtual void SetCurrentValueIndex(const TInt aIndex);
       
    85     IMPORT_C virtual TBool CreateEditorL();
       
    86     
       
    87 protected:
       
    88 	CAknQueryValueDate();
       
    89 	
       
    90 	/**
       
    91      * 2nd stage construction.
       
    92      *
       
    93     */
       
    94 	void ConstructL();
       
    95 	
       
    96     /**
       
    97      * Search for the current time in the list, and set the current index 
       
    98      * to be the found index. If not found, set current index to 1 after the size of the array.
       
    99      *
       
   100     */	
       
   101 	void CalculateCurrentIndex();
       
   102 	
       
   103 	virtual void AppendValueIfNewL();
       
   104 	
       
   105 private: // from MAknQueryValue
       
   106 	IMPORT_C void Reserved_MAknQueryValue();
       
   107 
       
   108 private:
       
   109 	// the following are member variables
       
   110 	TInt iQueryCaptionId;
       
   111 	TTime iTime;
       
   112 	TInt iCurrentIndex;
       
   113 	// the following are not owned
       
   114 	const CAknQueryValueDateArray* iArray;
       
   115     };
       
   116 
       
   117 
       
   118 /**
       
   119  * Wraps an array of dates, adapts it into a descriptor array.
       
   120  *
       
   121  */
       
   122 NONSHARABLE_CLASS(CAknQueryValueDateArray) : public CBase, public MDesCArray
       
   123 	{
       
   124 public:
       
   125     /**
       
   126      * Typedef for array containing TTime items
       
   127      *
       
   128     */
       
   129 	typedef CArrayFix<TTime> TimeArray;
       
   130 	
       
   131 
       
   132 	enum {KSafeSizeOfDescriptorForTTimeFormat = 128};
       
   133 	
       
   134 public:
       
   135     /**
       
   136      * Two-phased constructor.
       
   137      *
       
   138     */
       
   139 	IMPORT_C static CAknQueryValueDateArray* NewL(TInt aResourceId);
       
   140 	
       
   141     /**
       
   142      * Two-phased constructor.
       
   143      *
       
   144     */	
       
   145 	IMPORT_C static CAknQueryValueDateArray* NewLC(TInt aResourceId);
       
   146 	
       
   147 	IMPORT_C ~CAknQueryValueDateArray();
       
   148 	
       
   149     /**
       
   150      * Set the array of values. 
       
   151      * Note that client can use any implementation of array class, but must pass in a 
       
   152      * TArray generated from it (by calling the Array() method on the array class)
       
   153      *
       
   154      * @param aArray  array of values, ownership is not passed
       
   155     */
       
   156 	IMPORT_C void SetArray(TimeArray& aArray);
       
   157 	
       
   158 	/**
       
   159      * Get the array of values as a TArray. 
       
   160      * Note that client can use any implementation of array class, but the array is 
       
   161      * treated as a TArray.
       
   162      *
       
   163      * @return array of values, ownership is not passed
       
   164     */
       
   165 	IMPORT_C TimeArray* Array() const;
       
   166 	
       
   167     /**
       
   168      * Return the TTime format string that is used to generate MDesCArray values
       
   169      *
       
   170      * @return format string
       
   171     */	
       
   172 	IMPORT_C const HBufC* FormatString() const;
       
   173 	
       
   174 #ifdef __WINS__
       
   175     /**
       
   176      * Return the size of a maximal time string formated using the format string 
       
   177      * that was supplied during construction of this instance.
       
   178      * Two versions to eliminate compiler warnings.
       
   179      *	
       
   180      * @return length of formatted string.
       
   181     */
       
   182 	IMPORT_C const TInt FormattedStringSize() const;
       
   183 #else
       
   184     /**
       
   185      * See const TInt FormattedStringSize() const;
       
   186      *
       
   187     */
       
   188 	IMPORT_C TInt FormattedStringSize() const;
       
   189 #endif // __WINS__
       
   190 
       
   191 public:
       
   192 	// from MDesCArray
       
   193     /**
       
   194 	 * @return count of contained array
       
   195      *
       
   196     */
       
   197     IMPORT_C virtual TInt MdcaCount() const;
       
   198     
       
   199     /**
       
   200      * Returns array element, converting value to text. 
       
   201      * <p> WARNING: the returned pointer is only valid until the next time this
       
   202      * method is invoked. 
       
   203      *
       
   204      * @param aIndex of element to return
       
   205      * @return descriptor representing array element, ownership is not passed
       
   206     */
       
   207     IMPORT_C virtual TPtrC MdcaPoint(TInt aIndex) const;
       
   208     
       
   209 protected:
       
   210 	CAknQueryValueDateArray();
       
   211 	
       
   212     /**
       
   213      * 2nd stage construction.
       
   214      *
       
   215     */
       
   216 	void ConstructL(TInt aResourceId);
       
   217 	
       
   218 private:
       
   219 	// the following members are owned
       
   220 	HBufC* iLastGeneratedTextValue;
       
   221 	HBufC* iFormatString;
       
   222 	// the following members are not owned
       
   223 	TimeArray* iArray;
       
   224 	TInt iFormattedStringSize;
       
   225 	};
       
   226 
       
   227 #endif // __AKNQUERYVALUEDATE_H__
       
   228