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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ********************************************************************************
5 *   Copyright (C) 2005-2015, International Business Machines
6 *   Corporation and others.  All Rights Reserved.
7 ********************************************************************************
8 *
9 * File WINDTFMT.H
10 *
11 ********************************************************************************
12 */
13 
14 #ifndef __WINDTFMT
15 #define __WINDTFMT
16 
17 #include "unicode/utypes.h"
18 
19 #if U_PLATFORM_USES_ONLY_WIN32_API
20 
21 #if !UCONFIG_NO_FORMATTING
22 
23 #include "unicode/format.h"
24 #include "unicode/datefmt.h"
25 #include "unicode/calendar.h"
26 #include "unicode/ustring.h"
27 #include "unicode/locid.h"
28 
29 /**
30  * \file
31  * \brief C++ API: Format dates using Windows API.
32  */
33 
34 U_CDECL_BEGIN
35 // Forward declarations for Windows types...
36 typedef struct _SYSTEMTIME SYSTEMTIME;
37 typedef struct _TIME_ZONE_INFORMATION TIME_ZONE_INFORMATION;
38 U_CDECL_END
39 
40 U_NAMESPACE_BEGIN
41 
42 class Win32DateFormat : public DateFormat
43 {
44 public:
45     Win32DateFormat(DateFormat::EStyle timeStyle, DateFormat::EStyle dateStyle, const Locale &locale, UErrorCode &status);
46 
47     Win32DateFormat(const Win32DateFormat &other);
48 
49     virtual ~Win32DateFormat();
50 
51     virtual Win32DateFormat *clone() const;
52 
53     Win32DateFormat &operator=(const Win32DateFormat &other);
54 
55     UnicodeString &format(Calendar &cal, UnicodeString &appendTo, FieldPosition &pos) const;
56 
57     using DateFormat::format;
58 
59     void parse(const UnicodeString& text, Calendar& cal, ParsePosition& pos) const;
60 
61     /**
62      * Set the calendar to be used by this date format. Initially, the default
63      * calendar for the specified or default locale is used.  The caller should
64      * not delete the Calendar object after it is adopted by this call.
65      *
66      * @param calendarToAdopt    Calendar object to be adopted.
67      */
68     virtual void adoptCalendar(Calendar* calendarToAdopt);
69 
70     /**
71      * Set the calendar to be used by this date format. Initially, the default
72      * calendar for the specified or default locale is used.
73      *
74      * @param newCalendar Calendar object to be set.
75      */
76     virtual void setCalendar(const Calendar& newCalendar);
77 
78     /**
79      * Sets the time zone for the calendar of this DateFormat object. The caller
80      * no longer owns the TimeZone object and should not delete it after this call.
81      *
82      * @param zoneToAdopt the TimeZone to be adopted.
83      */
84     virtual void adoptTimeZone(TimeZone* zoneToAdopt);
85 
86     /**
87      * Sets the time zone for the calendar of this DateFormat object.
88      * @param zone the new time zone.
89      */
90     virtual void setTimeZone(const TimeZone& zone);
91 
92     /**
93      * Return the class ID for this class. This is useful only for comparing to
94      * a return value from getDynamicClassID(). For example:
95      * <pre>
96      * .   Base* polymorphic_pointer = createPolymorphicObject();
97      * .   if (polymorphic_pointer->getDynamicClassID() ==
98      * .       derived::getStaticClassID()) ...
99      * </pre>
100      * @return          The class ID for all objects of this class.
101      */
102     U_I18N_API static UClassID U_EXPORT2 getStaticClassID(void);
103 
104     /**
105      * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This
106      * method is to implement a simple version of RTTI, since not all C++
107      * compilers support genuine RTTI. Polymorphic operator==() and clone()
108      * methods call this method.
109      *
110      * @return          The class ID for this object. All objects of a
111      *                  given class have the same class ID.  Objects of
112      *                  other classes have different class IDs.
113      */
114     virtual UClassID getDynamicClassID(void) const;
115 
116 private:
117     void formatDate(const SYSTEMTIME *st, UnicodeString &appendTo) const;
118     void formatTime(const SYSTEMTIME *st, UnicodeString &appendTo) const;
119 
120     UnicodeString setTimeZoneInfo(TIME_ZONE_INFORMATION *tzi, const TimeZone &zone) const;
121     UnicodeString* getTimeDateFormat(const Calendar *cal, const Locale *locale, UErrorCode &status) const;
122 
123     UnicodeString *fDateTimeMsg;
124     DateFormat::EStyle fTimeStyle;
125     DateFormat::EStyle fDateStyle;
126     Locale fLocale;
127     UnicodeString fZoneID;
128     TIME_ZONE_INFORMATION *fTZI;
129 
130     UnicodeString* fWindowsLocaleName; // Stores the equivalent Windows locale name.
131 };
132 
133 U_NAMESPACE_END
134 
135 #endif /* #if !UCONFIG_NO_FORMATTING */
136 
137 #endif // U_PLATFORM_USES_ONLY_WIN32_API
138 
139 #endif // __WINDTFMT
140