used to contain the number of years, hours, minutes, seconds and
milliseconds.
-
- @section datetime_constants Constants
-
- Global constant wxDefaultDateTime and synonym for it wxInvalidDateTime are
+ Global constant ::wxDefaultDateTime and synonym for it ::wxInvalidDateTime are
defined. This constant will be different from any valid wxDateTime object.
- All the following constants are defined inside wxDateTime class (i.e., to
- refer to them you should prepend their names with "wxDateTime::").
-
- Time zone symbolic names:
-
- @code
- enum TZ
- {
- // the time in the current time zone
- Local,
-
- // zones from GMT (= Greenwhich Mean Time): they're guaranteed to be
- // consequent numbers, so writing something like `GMT0 + offset' is
- // safe if abs(offset) <= 12
-
- // underscore stands for minus
- GMT_12, GMT_11, GMT_10, GMT_9, GMT_8, GMT_7,
- GMT_6, GMT_5, GMT_4, GMT_3, GMT_2, GMT_1,
- GMT0,
- GMT1, GMT2, GMT3, GMT4, GMT5, GMT6,
- GMT7, GMT8, GMT9, GMT10, GMT11, GMT12, GMT13,
- // Note that GMT12 and GMT_12 are not the same: there is a difference
- // of exactly one day between them
-
- // some symbolic names for TZ
-
- // Europe
- WET = GMT0, // Western Europe Time
- WEST = GMT1, // Western Europe Summer Time
- CET = GMT1, // Central Europe Time
- CEST = GMT2, // Central Europe Summer Time
- EET = GMT2, // Eastern Europe Time
- EEST = GMT3, // Eastern Europe Summer Time
- MSK = GMT3, // Moscow Time
- MSD = GMT4, // Moscow Summer Time
-
- // US and Canada
- AST = GMT_4, // Atlantic Standard Time
- ADT = GMT_3, // Atlantic Daylight Time
- EST = GMT_5, // Eastern Standard Time
- EDT = GMT_4, // Eastern Daylight Saving Time
- CST = GMT_6, // Central Standard Time
- CDT = GMT_5, // Central Daylight Saving Time
- MST = GMT_7, // Mountain Standard Time
- MDT = GMT_6, // Mountain Daylight Saving Time
- PST = GMT_8, // Pacific Standard Time
- PDT = GMT_7, // Pacific Daylight Saving Time
- HST = GMT_10, // Hawaiian Standard Time
- AKST = GMT_9, // Alaska Standard Time
- AKDT = GMT_8, // Alaska Daylight Saving Time
-
- // Australia
-
- A_WST = GMT8, // Western Standard Time
- A_CST = GMT13 + 1, // Central Standard Time (+9.5)
- A_EST = GMT10, // Eastern Standard Time
- A_ESST = GMT11, // Eastern Summer Time
-
- // New Zealand
- NZST = GMT12, // Standard Time
- NZDT = GMT13, // Daylight Saving Time
-
- // Universal Coordinated Time = the new and politically correct name
- // for GMT
- UTC = GMT0
- };
- @endcode
-
- Month names: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec and
- Inv_Month for an invalid month are the values of @c wxDateTime::Month enum.
-
- Likewise, Sun, Mon, Tue, Wed, Thu, Fri, Sat, and Inv_WeekDay are the values
- in @c wxDateTime::WeekDay enum.
-
- Finally, Inv_Year is defined to be an invalid value for year parameter.
-
- GetMonthName() and GetWeekDayName() functions use the following flags:
-
- @code
- enum NameFlags
- {
- Name_Full = 0x01, // return full name
- Name_Abbr = 0x02 // return abbreviated name
- };
- @endcode
-
- Several functions accept an extra parameter specifying the calendar to use
- (although most of them only support now the Gregorian calendar). This
- parameters is one of the following values:
-
- @code
- enum Calendar
- {
- Gregorian, // calendar currently in use in Western countries
- Julian // calendar in use since -45 until the 1582 (or later)
- };
- @endcode
-
- Date calculations often depend on the country and wxDateTime allows to set
- the country whose conventions should be used using SetCountry(). It takes
- one of the following values as parameter:
-
- @code
- enum Country
- {
- Country_Unknown, // no special information for this country
- Country_Default, // set the default country with SetCountry() method
- // or use the default country with any other
-
- Country_WesternEurope_Start,
- Country_EEC = Country_WesternEurope_Start,
- France,
- Germany,
- UK,
- Country_WesternEurope_End = UK,
-
- Russia,
-
- USA
- };
- @endcode
-
- Different parts of the world use different conventions for the week start.
- In some countries, the week starts on Sunday, while in others -- on Monday.
- The ISO standard doesn't address this issue, so we support both conventions
- in the functions whose result depends on it (GetWeekOfYear() and
- GetWeekOfMonth()).
-
- The desired behvaiour may be specified by giving one of the following
- constants as argument to these functions:
-
- @code
- enum WeekFlags
- {
- Default_First, // Sunday_First for US, Monday_First for the rest
- Monday_First, // week starts with a Monday
- Sunday_First // week starts with a Sunday
- };
- @endcode
-
@section datetime_static Static Functions
class wxDateTime
{
public:
+ /**
+ A small unsigned integer type for storing things like minutes,
+ seconds &c. It should be at least short (i.e. not char) to contain
+ the number of milliseconds - it may also be 'int' because there is
+ no size penalty associated with it in our code, we don't store any
+ data in this format.
+ */
+ typedef unsigned short wxDateTime_t;
+
+
+ /**
+ Time zone symbolic names.
+ */
+ enum TZ
+ {
+ /// the time in the current time zone
+ Local,
+
+ //@{
+ /// zones from GMT (= Greenwhich Mean Time): they're guaranteed to be
+ /// consequent numbers, so writing something like `GMT0 + offset' is
+ /// safe if abs(offset) <= 12
+
+ // underscore stands for minus
+ GMT_12, GMT_11, GMT_10, GMT_9, GMT_8, GMT_7,
+ GMT_6, GMT_5, GMT_4, GMT_3, GMT_2, GMT_1,
+ GMT0,
+ GMT1, GMT2, GMT3, GMT4, GMT5, GMT6,
+ GMT7, GMT8, GMT9, GMT10, GMT11, GMT12, GMT13,
+ // Note that GMT12 and GMT_12 are not the same: there is a difference
+ // of exactly one day between them
+ //@}
+
+ // some symbolic names for TZ
+
+ // Europe
+ WET = GMT0, //!< Western Europe Time
+ WEST = GMT1, //!< Western Europe Summer Time
+ CET = GMT1, //!< Central Europe Time
+ CEST = GMT2, //!< Central Europe Summer Time
+ EET = GMT2, //!< Eastern Europe Time
+ EEST = GMT3, //!< Eastern Europe Summer Time
+ MSK = GMT3, //!< Moscow Time
+ MSD = GMT4, //!< Moscow Summer Time
+
+ // US and Canada
+ AST = GMT_4, //!< Atlantic Standard Time
+ ADT = GMT_3, //!< Atlantic Daylight Time
+ EST = GMT_5, //!< Eastern Standard Time
+ EDT = GMT_4, //!< Eastern Daylight Saving Time
+ CST = GMT_6, //!< Central Standard Time
+ CDT = GMT_5, //!< Central Daylight Saving Time
+ MST = GMT_7, //!< Mountain Standard Time
+ MDT = GMT_6, //!< Mountain Daylight Saving Time
+ PST = GMT_8, //!< Pacific Standard Time
+ PDT = GMT_7, //!< Pacific Daylight Saving Time
+ HST = GMT_10, //!< Hawaiian Standard Time
+ AKST = GMT_9, //!< Alaska Standard Time
+ AKDT = GMT_8, //!< Alaska Daylight Saving Time
+
+ // Australia
+
+ A_WST = GMT8, //!< Western Standard Time
+ A_CST = GMT13 + 1, //!< Central Standard Time (+9.5)
+ A_EST = GMT10, //!< Eastern Standard Time
+ A_ESST = GMT11, //!< Eastern Summer Time
+
+ // New Zealand
+ NZST = GMT12, //!< Standard Time
+ NZDT = GMT13, //!< Daylight Saving Time
+
+ /// Universal Coordinated Time = the new and politically correct name
+ /// for GMT.
+ UTC = GMT0
+ };
+
+ /**
+ Several functions accept an extra parameter specifying the calendar to use
+ (although most of them only support now the Gregorian calendar). This
+ parameters is one of the following values.
+ */
+ enum Calendar
+ {
+ Gregorian, ///< calendar currently in use in Western countries
+ Julian ///< calendar in use since -45 until the 1582 (or later)
+ };
+
+ /**
+ Date calculations often depend on the country and wxDateTime allows to set
+ the country whose conventions should be used using SetCountry(). It takes
+ one of the following values as parameter.
+ */
+ enum Country
+ {
+ Country_Unknown, ///< no special information for this country
+ Country_Default, ///< set the default country with SetCountry() method
+ ///< or use the default country with any other
+
+ Country_WesternEurope_Start,
+ Country_EEC = Country_WesternEurope_Start,
+ France,
+ Germany,
+ UK,
+ Country_WesternEurope_End = UK,
+
+ Russia,
+
+ USA
+ };
+
+ /// symbolic names for the months
+ enum Month
+ {
+ Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec,
+
+ /// Invalid month value.
+ Inv_Month
+ };
+
+ /// symbolic names for the weekdays
+ enum WeekDay
+ {
+ Sun, Mon, Tue, Wed, Thu, Fri, Sat,
+
+ /// Invalid week day value.
+ Inv_WeekDay
+ };
+
+ /// invalid value for the year
+ enum Year
+ {
+ Inv_Year = SHRT_MIN // should hold in wxDateTime_t
+ };
+
+ /**
+ Flags to be used with GetMonthName() and GetWeekDayName() functions.
+ */
+ enum NameFlags
+ {
+ Name_Full = 0x01, ///< return full name
+ Name_Abbr = 0x02 ///< return abbreviated name
+ };
+
+ /**
+ Different parts of the world use different conventions for the week start.
+ In some countries, the week starts on Sunday, while in others -- on Monday.
+ The ISO standard doesn't address this issue, so we support both conventions
+ in the functions whose result depends on it (GetWeekOfYear() and
+ GetWeekOfMonth()).
+
+ The desired behvaiour may be specified by giving one of the following
+ constants as argument to these functions.
+ */
+ enum WeekFlags
+ {
+ Default_First, ///< Sunday_First for US, Monday_First for the rest
+ Monday_First, ///< week starts with a Monday
+ Sunday_First ///< week starts with a Sunday
+ };
+
+
/**
@name Constructors, Assignment Operators and Setters
Returns the ordinal number of the week in the month (in 1-5 range).
As GetWeekOfYear(), this function supports both conventions for the
- week start. See the description of these @c WeekFlags in the
- @ref datetime_constants section.
+ week start.
*/
wxDateTime_t GetWeekOfMonth(WeekFlags flags = Monday_First,
const TimeZone& tz = Local) const;
year. Accordingly, the week number will always be in 1-53 range (52 for
non-leap years).
- The function depends on the @ref datetime_constants "week start"
- convention specified by the @a flags argument but its results for
- @c Sunday_First are not well-defined as the ISO definition quoted above
- applies to the weeks starting on Monday only.
+ The function depends on the week start convention specified by the @a flags
+ argument but its results for @c Sunday_First are not well-defined as the
+ ISO definition quoted above applies to the weeks starting on Monday only.
*/
wxDateTime_t GetWeekOfYear(WeekFlags flags = Monday_First,
const TimeZone& tz = Local) const;
/**
This function does the same as the standard ANSI C @c strftime(3)
- function. Please see its description for the meaning of @a format
- parameter.
+ function (http://www.cplusplus.com/reference/clibrary/ctime/strftime.html).
+ Please see its description for the meaning of @a format parameter.
It also accepts a few wxWidgets-specific extensions: you can optionally
specify the width of the field to follow using @c printf(3)-like syntax
/**
This function is like ParseDateTime(), but it only allows the date to
- be specified. It is thus less flexible then ParseDateTime(), but also
- has less chances to misinterpret the user input.
+ be specified.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const char* ParseDate(const wxString& date,
- wxString::const_iterator* end = NULL);
- /**
- This function is like ParseDateTime(), but it only allows the date to
- be specified. It is thus less flexible then ParseDateTime(), but also
- has less chances to misinterpret the user input.
+ It is thus less flexible then ParseDateTime(), but also has less
+ chances to misinterpret the user input.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const char* ParseDate(const char* date);
- /**
- This function is like ParseDateTime(), but it only allows the date to
- be specified. It is thus less flexible then ParseDateTime(), but also
- has less chances to misinterpret the user input.
+ See ParseFormat() for the description of function parameters and return
+ value.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ @see Format()
*/
- const wchar_t* ParseDate(const wchar_t* date);
+ bool ParseDate(const wxString& date, wxString::const_iterator *end);
/**
Parses the string @a datetime containing the date and time in free
- format. This function tries as hard as it can to interpret the given
- string as date and time. Unlike ParseRfc822Date(), it will accept
- anything that may be accepted and will only reject strings which can
- not be parsed in any way at all.
+ format.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const char* ParseDateTime(const wxString& datetime,
- wxString::const_iterator* end = NULL);
- /**
- Parses the string @a datetime containing the date and time in free
- format. This function tries as hard as it can to interpret the given
- string as date and time. Unlike ParseRfc822Date(), it will accept
- anything that may be accepted and will only reject strings which can
- not be parsed in any way at all.
+ This function tries as hard as it can to interpret the given string as
+ date and time. Unlike ParseRfc822Date(), it will accept anything that
+ may be accepted and will only reject strings which can not be parsed in
+ any way at all.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ See ParseFormat() for the description of function parameters and return
+ value.
*/
- const char* ParseDateTime(const char* datetime);
- /**
- Parses the string @a datetime containing the date and time in free
- format. This function tries as hard as it can to interpret the given
- string as date and time. Unlike ParseRfc822Date(), it will accept
- anything that may be accepted and will only reject strings which can
- not be parsed in any way at all.
-
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const wchar_t* ParseDateTime(const wchar_t* datetime);
+ bool ParseDateTime(const wxString& datetime, wxString::const_iterator *end);
/**
This function parses the string @a date according to the given
@a dateDef. If it is not specified, Today() is used as the default
date.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const char* ParseFormat(const wxString& date,
- const wxString& format = wxDefaultDateTimeFormat,
- const wxDateTime& dateDef = wxDefaultDateTime,
- wxString::const_iterator* end = NULL);
- /**
- This function parses the string @a date according to the given
- @e format. The system @c strptime(3) function is used whenever
- available, but even if it is not, this function is still implemented,
- although support for locale-dependent format specifiers such as
- @c "%c", @c "%x" or @c "%X" may not be perfect and GNU extensions such
- as @c "%z" and @c "%Z" are not implemented. This function does handle
- the month and weekday names in the current locale on all platforms,
- however.
+ Example of using this function:
+ @code
+ wxDateTime dt;
+ wxString str = "...";
+ wxString::const_iterator end;
+ if ( !dt.ParseFormat(str, "%Y-%m-%d", &end) )
+ ... parsing failed ...
+ else if ( end == str.end() )
+ ... entire string parsed ...
+ else
+ ... wxString(end, str.end()) left over ...
+ @endcode
- Please see the description of the ANSI C function @c strftime(3) for
- the syntax of the format string.
+ @param date
+ The string to be parsed.
+ @param format
+ strptime()-like format string.
+ @param dateDef
+ Used to fill in the date components not specified in the @a date
+ string.
+ @param end
+ Will be filled with the iterator pointing to the location where the
+ parsing stopped if the function returns @true. If the entire string
+ was consumed, it is set to @c date.end(). Notice that this argument
+ must be non-@NULL.
+ @return
+ @true if at least part of the string was parsed successfully,
+ @false otherwise.
- The @a dateDef parameter is used to fill in the fields which could not
- be determined from the format string. For example, if the format is
- @c "%d" (the day of the month), the month and the year are taken from
- @a dateDef. If it is not specified, Today() is used as the default
- date.
-
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ @see Format()
*/
- const char* ParseFormat(const char* date,
- const wxString& format = wxDefaultDateTimeFormat,
- const wxDateTime& dateDef = wxDefaultDateTime);
- /**
- This function parses the string @a date according to the given
- @e format. The system @c strptime(3) function is used whenever
- available, but even if it is not, this function is still implemented,
- although support for locale-dependent format specifiers such as
- @c "%c", @c "%x" or @c "%X" may not be perfect and GNU extensions such
- as @c "%z" and @c "%Z" are not implemented. This function does handle
- the month and weekday names in the current locale on all platforms,
- however.
-
- Please see the description of the ANSI C function @c strftime(3) for
- the syntax of the format string.
+ bool ParseFormat(const wxString& date,
+ const wxString& format = wxDefaultDateTimeFormat,
+ const wxDateTime& dateDef = wxDefaultDateTime,
+ wxString::const_iterator *end);
- The @a dateDef parameter is used to fill in the fields which could not
- be determined from the format string. For example, if the format is
- @c "%d" (the day of the month), the month and the year are taken from
- @a dateDef. If it is not specified, Today() is used as the default
- date.
+ /**
+ @overload
+ */
+ bool ParseFormat(const wxString& date,
+ const wxString& format = wxDefaultDateTimeFormat,
+ wxString::const_iterator *end);
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ /**
+ @overload
*/
- const wchar_t* ParseFormat(const wchar_t* date,
- const wxString& format = wxDefaultDateTimeFormat,
- const wxDateTime& dateDef = wxDefaultDateTime);
+ bool ParseFormat(const wxString& date, wxString::const_iterator *end);
/**
This function parses the string containing the date and time in ISO
string which is not RFC 822 compliant. If you need to parse date
formatted in more free ways, you should use ParseDateTime() or
ParseDate() instead.
- */
- const char* ParseRfc822Date(const wxString& date,
- wxString::const_iterator* end = NULL);
- /**
- Parses the string @a date looking for a date formatted according to the
- RFC 822 in it. The exact description of this format may, of course, be
- found in the RFC (section 5), but, briefly, this is the format used in
- the headers of Internet email messages and one of the most common
- strings expressing date in this format may be something like
- @c "Sat, 18 Dec 1999 00:48:30 +0100".
-
- Returns @NULL if the conversion failed, otherwise return the pointer to
- the character immediately following the part of the string which could
- be parsed. If the entire string contains only the date in RFC 822
- format, the returned pointer will be pointing to a @c NUL character.
-
- This function is intentionally strict, it will return an error for any
- string which is not RFC 822 compliant. If you need to parse date
- formatted in more free ways, you should use ParseDateTime() or
- ParseDate() instead.
- */
- const char* ParseRfc822Date(const char* date);
- /**
- Parses the string @a date looking for a date formatted according to the
- RFC 822 in it. The exact description of this format may, of course, be
- found in the RFC (section 5), but, briefly, this is the format used in
- the headers of Internet email messages and one of the most common
- strings expressing date in this format may be something like
- @c "Sat, 18 Dec 1999 00:48:30 +0100".
-
- Returns @NULL if the conversion failed, otherwise return the pointer to
- the character immediately following the part of the string which could
- be parsed. If the entire string contains only the date in RFC 822
- format, the returned pointer will be pointing to a @c NUL character.
-
- This function is intentionally strict, it will return an error for any
- string which is not RFC 822 compliant. If you need to parse date
- formatted in more free ways, you should use ParseDateTime() or
- ParseDate() instead.
- */
- const wchar_t* ParseRfc822Date(const wchar_t* date);
-
- /**
- This functions is like ParseDateTime(), but only allows the time to be
- specified in the input string.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ See ParseFormat() for the description of function parameters and return
+ value.
*/
- const char* ParseTime(const wxString& time,
- wxString::const_iterator* end = NULL);
- /**
- This functions is like ParseDateTime(), but only allows the time to be
- specified in the input string.
+ bool ParseRfc822Date(const wxString& date, wxString::const_iterator *end);
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
- */
- const char* ParseTime(const char* time);
/**
This functions is like ParseDateTime(), but only allows the time to be
specified in the input string.
- @return @NULL if the conversion failed, otherwise return the pointer
- to the character which stopped the scan.
+ See ParseFormat() for the description of function parameters and return
+ value.
*/
- const wchar_t* ParseTime(const wchar_t* time);
+ bool ParseTime(const wxString& time, wxString::const_iterator *end);
//@}
static int GetCurrentYear(Calendar cal = Gregorian);
/**
- Gets the full (default) or abbreviated (specify @c Name_Abbr name of
- the given month.
+ Return the standard English name of the given month.
+
+ This function always returns "January" or "Jan" for January, use
+ GetMonthName() to retrieve the name of the month in the users current
+ locale.
+
+ @param month
+ One of wxDateTime::Jan, ..., wxDateTime::Dec values.
+ @param flags
+ Either Name_Full (default) or Name_Abbr.
+
+ @see GetEnglishWeekDayName()
+
+ @since 2.9.0
+ */
+ static wxString GetEnglishMonthName(Month month,
+ NameFlags flags = Name_Full);
+
+ /**
+ Return the standard English name of the given week day.
+
+ This function always returns "Monday" or "Mon" for Monday, use
+ GetWeekDayName() to retrieve the name of the month in the users current
+ locale.
+
+ @param weekday
+ One of wxDateTime::Sun, ..., wxDateTime::Sat values.
+ @param flags
+ Either Name_Full (default) or Name_Abbr.
+
+ @see GetEnglishMonthName()
+
+ @since 2.9.0
+ */
+ static wxString GetEnglishWeekDayName(WeekDay weekday,
+ NameFlags flags = Name_Full);
+
+ /**
+ Gets the full (default) or abbreviated name of the given month.
+
+ This function returns the name in the current locale, use
+ GetEnglishMonthName() to get the untranslated name if necessary.
+
+ @param month
+ One of wxDateTime::Jan, ..., wxDateTime::Dec values.
+ @param flags
+ Either Name_Full (default) or Name_Abbr.
@see GetWeekDayName()
*/
static tm* GetTmNow();
/**
- Gets the full (default) or abbreviated (specify @c Name_Abbr) name of
- the given week day.
+ Gets the full (default) or abbreviated name of the given week day.
+
+ This function returns the name in the current locale, use
+ GetEnglishWeekDayName() to get the untranslated name if necessary.
+
+ @param weekday
+ One of wxDateTime::Sun, ..., wxDateTime::Sat values.
+ @param flags
+ Either Name_Full (default) or Name_Abbr.
@see GetMonthName()
*/
static wxString GetWeekDayName(WeekDay weekday,
- NameFlags flags = Name_Full);
+ NameFlags flags = Name_Full);
/**
Returns @true if DST was used in the given year (the current one by
Sets the country to use by default. This setting influences the DST
calculations, date formatting and other things.
- The possible values for @a country parameter are enumerated in the
- @ref datetime_constants section.
-
@see GetCountry()
*/
static void SetCountry(Country country);
@todo Write wxDateTimeHolidayAuthority documentation.
@library{wxbase}
- @category{misc}
+ @category{data}
*/
class wxDateTimeHolidayAuthority
{
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