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windtfmt.h (4519B)

      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();
    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() 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