X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7929902d65215d481c59733a5d05b81e373b8237..86ac84b8ce086e6bbda58f422d41f84268606e35:/include/wx/datetime.h diff --git a/include/wx/datetime.h b/include/wx/datetime.h index 5942e0cc33..351ced98ea 100644 --- a/include/wx/datetime.h +++ b/include/wx/datetime.h @@ -26,6 +26,7 @@ #include // for INT_MIN #include "wx/longlong.h" +#include "wx/anystr.h" class WXDLLIMPEXP_FWD_BASE wxDateTime; class WXDLLIMPEXP_FWD_BASE wxTimeSpan; @@ -133,6 +134,19 @@ extern WXDLLIMPEXP_DATA_BASE(const wxDateTime) wxDefaultDateTime; #define wxInvalidDateTime wxDefaultDateTime + +// ---------------------------------------------------------------------------- +// conditional compilation +// ---------------------------------------------------------------------------- + +// if configure detected strftime(), we have it too +#ifdef HAVE_STRFTIME + #define wxHAS_STRFTIME +// suppose everyone else has strftime except Win CE unless VC8 is used +#elif !defined(__WXWINCE__) || defined(__VISUALC8__) + #define wxHAS_STRFTIME +#endif + // ---------------------------------------------------------------------------- // wxDateTime represents an absolute moment in the time // ---------------------------------------------------------------------------- @@ -233,7 +247,7 @@ public: // adoption of the Gregorian calendar (see IsGregorian()) // // All data and comments taken verbatim from "The Calendar FAQ (v 2.0)" - // by Claus Tøndering, http://www.pip.dknet.dk/~c-t/calendar.html + // by Claus T�ndering, http://www.pip.dknet.dk/~c-t/calendar.html // except for the comments "we take". // // Symbol "->" should be read as "was followed by" in the comments @@ -528,16 +542,25 @@ public: int year = Inv_Year, Calendar cal = Gregorian); + // get the full (default) or abbreviated month name in the current // locale, returns empty string on error static wxString GetMonthName(Month month, NameFlags flags = Name_Full); + // get the standard English full (default) or abbreviated month name + static wxString GetEnglishMonthName(Month month, + NameFlags flags = Name_Full); + // get the full (default) or abbreviated weekday name in the current // locale, returns empty string on error static wxString GetWeekDayName(WeekDay weekday, NameFlags flags = Name_Full); + // get the standard English full (default) or abbreviated weekday name + static wxString GetEnglishWeekDayName(WeekDay weekday, + NameFlags flags = Name_Full); + // get the AM and PM strings in the current locale (may be empty) static void GetAmPmStrings(wxString *am, wxString *pm); @@ -1055,104 +1078,42 @@ public: inline wxTimeSpan Subtract(const wxDateTime& dt) const; inline wxTimeSpan operator-(const wxDateTime& dt2) const; - // conversion to/from text: all conversions from text return the pointer to - // the next character following the date specification (i.e. the one where - // the scan had to stop) or NULL on failure; for the versions taking - // wxString or wxCStrData, we don't know if the user code needs char* or - // wchar_t* pointer and so we return char* one for compatibility with the - // existing ANSI code and also return iterator in another output parameter - // (it will be equal to end if the entire string was parsed) + // conversion to/from text // ------------------------------------------------------------------------ + // all conversions functions return true to indicate whether parsing + // succeeded or failed and fill in the provided end iterator, which must + // not be NULL, with the location of the character where the parsing + // stopped (this will be end() of the passed string if everything was + // parsed) + // parse a string in RFC 822 format (found e.g. in mail headers and // having the form "Wed, 10 Feb 1999 19:07:07 +0100") - const char *ParseRfc822Date(const wxString& date, - wxString::const_iterator *end = NULL); - const char *ParseRfc822Date(const wxCStrData& date, - wxString::const_iterator *end = NULL) - { - return ParseRfc822Date(date.AsString(), end); - } - - const wchar_t *ParseRfc822Date(const wchar_t* date) - { - return ReturnEndAsWidePtr(&wxDateTime::ParseRfc822Date, date); - } - - const char *ParseRfc822Date(const char* date) - { - return ParseRfc822Date(wxString(date)); - } + bool ParseRfc822Date(const wxString& date, + wxString::const_iterator *end); // parse a date/time in the given format (see strptime(3)), fill in // the missing (in the string) fields with the values of dateDef (by // default, they will not change if they had valid values or will // default to Today() otherwise) - - // notice that we unfortunately need all those overloads because we use - // the type of the date string to select the return value of the - // function: it's wchar_t if a wide string is passed for compatibility - // with the code doing "const wxChar *p = dt.ParseFormat(_T("..."))", - // but char* in all other cases for compatibility with ANSI build which - // allowed code like "const char *p = dt.ParseFormat("...")" - // - // so we need wchar_t overload and now passing s.c_str() as first - // argument is ambiguous because it's convertible to both wxString and - // wchar_t* and now it's passing char* which becomes ambiguous as it is - // convertible to both wxString and wxCStrData hence we need char* - // overload too - // - // and to make our life more miserable we also pay for having the - // optional dateDef parameter: as it's almost never used, we want to - // allow people to omit it when specifying the end iterator output - // parameter but we still have to allow specifying dateDef too, so we - // need another overload for this - // - // FIXME: all this mess could be avoided by using some class similar to - // wxFormatString, i.e. remembering string [pointer] of any type - // and convertible to either char* or wchar_t* as wxCStrData and - // having only 1 (or 2, because of the last paragraph above) - // overload taking it, see #9560 - const char *ParseFormat(const wxString& date, - const wxString& format = wxDefaultDateTimeFormat, - const wxDateTime& dateDef = wxDefaultDateTime, - wxString::const_iterator *end = NULL); - - const char *ParseFormat(const wxString& date, - const wxString& format, - wxString::const_iterator *end) + bool ParseFormat(const wxString& date, + const wxString& format, + const wxDateTime& dateDef, + wxString::const_iterator *end); + + bool ParseFormat(const wxString& date, + const wxString& format, + wxString::const_iterator *end) { return ParseFormat(date, format, wxDefaultDateTime, end); } - const char *ParseFormat(const wxCStrData& date, - const wxString& format = wxDefaultDateTimeFormat, - const wxDateTime& dateDef = wxDefaultDateTime, - wxString::const_iterator *end = NULL) - { - return ParseFormat(date.AsString(), format, dateDef, end); - } - - const wchar_t *ParseFormat(const wchar_t *date, - const wxString& format = wxDefaultDateTimeFormat, - const wxDateTime& dateDef = wxDefaultDateTime) - { - const wxString datestr(date); - wxString::const_iterator end; - if ( !ParseFormat(datestr, format, dateDef, &end) ) - return NULL; - - return date + (end - datestr.begin()); - } - - const char *ParseFormat(const char *date, - const wxString& format = "%c", - const wxDateTime& dateDef = wxDefaultDateTime) + bool ParseFormat(const wxString& date, + wxString::const_iterator *end) { - return ParseFormat(wxString(date), format, dateDef); + return ParseFormat(date, wxDefaultDateTimeFormat, wxDefaultDateTime, end); } - // parse a string containing date, time or both in ISO 8601 format // // notice that these functions are new in wx 3.0 and so we don't @@ -1178,65 +1139,18 @@ public: // parse a string containing the date/time in "free" format, this // function will try to make an educated guess at the string contents - const char *ParseDateTime(const wxString& datetime, - wxString::const_iterator *end = NULL); - - const char *ParseDateTime(const wxCStrData& datetime, - wxString::const_iterator *end = NULL) - { - return ParseDateTime(datetime.AsString(), end); - } - - const wchar_t *ParseDateTime(const wchar_t *datetime) - { - return ReturnEndAsWidePtr(&wxDateTime::ParseDateTime, datetime); - } - - const char *ParseDateTime(const char *datetime) - { - return ParseDateTime(wxString(datetime)); - } + bool ParseDateTime(const wxString& datetime, + wxString::const_iterator *end); // parse a string containing the date only in "free" format (less // flexible than ParseDateTime) - const char *ParseDate(const wxString& date, - wxString::const_iterator *end = NULL); - - const char *ParseDate(const wxCStrData& date, - wxString::const_iterator *end = NULL) - { - return ParseDate(date.AsString(), end); - } - - const wchar_t *ParseDate(const wchar_t *date) - { - return ReturnEndAsWidePtr(&wxDateTime::ParseDate, date); - } - - const char *ParseDate(const char *date) - { - return ParseDate(wxString(date)); - } + bool ParseDate(const wxString& date, + wxString::const_iterator *end); // parse a string containing the time only in "free" format - const char *ParseTime(const wxString& time, - wxString::const_iterator *end = NULL); - - const char *ParseTime(const wxCStrData& time, - wxString::const_iterator *end = NULL) - { - return ParseTime(time.AsString(), end); - } + bool ParseTime(const wxString& time, + wxString::const_iterator *end); - const wchar_t *ParseTime(const wchar_t *time) - { - return ReturnEndAsWidePtr(&wxDateTime::ParseTime, time); - } - - const char *ParseTime(const char *time) - { - return ParseTime(wxString(time)); - } // this function accepts strftime()-like format string (default // argument corresponds to the preferred date and time representation @@ -1260,6 +1174,52 @@ public: wxString FormatISOCombined(char sep = 'T') const { return FormatISODate() + sep + FormatISOTime(); } + + // backwards compatible versions of the parsing functions: they return an + // object representing the next character following the date specification + // (i.e. the one where the scan had to stop) or a special NULL-like object + // on failure + // + // they're not deprecated because a lot of existing code uses them and + // there is no particular harm in keeping them but you should still prefer + // the versions above in the new code + wxAnyStrPtr ParseRfc822Date(const wxString& date) + { + wxString::const_iterator end; + return ParseRfc822Date(date, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseFormat(const wxString& date, + const wxString& format = wxDefaultDateTimeFormat, + const wxDateTime& dateDef = wxDefaultDateTime) + { + wxString::const_iterator end; + return ParseFormat(date, format, dateDef, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseDateTime(const wxString& datetime) + { + wxString::const_iterator end; + return ParseDateTime(datetime, &end) ? wxAnyStrPtr(datetime, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseDate(const wxString& date) + { + wxString::const_iterator end; + return ParseDate(date, &end) ? wxAnyStrPtr(date, end) + : wxAnyStrPtr(); + } + + wxAnyStrPtr ParseTime(const wxString& time) + { + wxString::const_iterator end; + return ParseTime(time, &end) ? wxAnyStrPtr(time, end) + : wxAnyStrPtr(); + } + // implementation // ------------------------------------------------------------------------ @@ -1270,7 +1230,7 @@ public: inline wxLongLong GetValue() const; // a helper function to get the current time_t - static time_t GetTimeNow() { return time((time_t *)NULL); } + static time_t GetTimeNow() { return time(NULL); } // another one to get the current time broken down static struct tm *GetTmNow() @@ -1283,23 +1243,6 @@ public: static struct tm *GetTmNow(struct tm *tmstruct); private: - // helper function for defining backward-compatible wrappers for code - // using wchar_t* pointer instead of wxString iterators - typedef - const char *(wxDateTime::*StringMethod)(const wxString& s, - wxString::const_iterator *end); - - const wchar_t *ReturnEndAsWidePtr(StringMethod func, const wchar_t *p) - { - const wxString s(p); - wxString::const_iterator end; - if ( !(this->*func)(s, &end) ) - return NULL; - - return p + (end - s.begin()); - } - - // the current country - as it's the same for all program objects (unless // it runs on a _really_ big cluster system :-), this is a static member: // see SetCountry() and GetCountry()