include/wx/date.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/date.h
   3 // Purpose:     wxDate class: this class is deprecated, use wxDateTime instead!
   4 // Author:      Julian Smart, Steve Marcus, Eric Simon, Chris Hill,
   5 //              Charles D. Price
   6 // Modified by: 18.12.99 by VZ to use the new wxDateTime class
   7 // Created:     01/02/97
   8 // RCS-ID:      $Id$
   9 // Copyright:(c)
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_DATE_H_
  14 #define _WX_DATE_H_
  15
  16 #ifdef __GNUG__
  17     #pragma interface "date.h"
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #if wxUSE_TIMEDATE
  23
  24 #include "wx/object.h"
  25 #include "wx/string.h"
  26 #include "wx/datetime.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // constants
  30 // ----------------------------------------------------------------------------
  31
  32 enum wxdate_format_type
  33 {
  34     wxMDY,
  35     wxDAY,
  36     wxMONTH,
  37     wxFULL,
  38     wxEUROPEAN
  39 };
  40
  41 enum // wxdate_format_flags
  42 {
  43     wxNO_CENTURY = 0x02,
  44     wxDATE_ABBR  = 0x04
  45 };
  46
  47 // ----------------------------------------------------------------------------
  48 // wxDate
  49 // ----------------------------------------------------------------------------
  50
  51 class WXDLLEXPORT wxDate : public wxObject
  52 {
  53 public:
  54     wxDate() { Init(); }
  55     wxDate(long j) : m_date((double)(j + 0.5)) { Init(); }
  56     wxDate(int m, int d, int y) : m_date(d, (wxDateTime::Month)m, y) { Init(); }
  57     wxDate(const wxString& dat) { Init(); (void)m_date.ParseDate(dat); }
  58     wxDate(const wxDate &date) { *this = date; }
  59
  60     wxDate(const wxDateTime& dt) { Init(); m_date = dt; }
  61
  62 #ifndef __SALFORDC__
  63     operator wxString() const { return FormatDate(); }
  64 #endif
  65
  66     void operator=(const wxDate& date)
  67     {
  68         m_date = date.m_date;
  69         m_displayFormat = date.m_displayFormat;
  70         m_displayOptions = date.m_displayOptions;
  71     }
  72
  73     void operator=(const wxString& dat) { (void)m_date.ParseDate(dat); }
  74
  75     wxDate operator+(long i) { return wxDate(GetJulianDate() + i); }
  76     wxDate operator+(int  i) { return wxDate(GetJulianDate() + (long)i); }
  77
  78     wxDate operator-(long i) { return wxDate(GetJulianDate() - i); }
  79     wxDate operator-(int  i) { return wxDate(GetJulianDate() - (long)i); }
  80
  81     long operator-(const wxDate &dt) const
  82         { return GetJulianDate() - dt.GetJulianDate(); }
  83
  84     wxDate &operator+=(long i) { m_date += wxTimeSpan::Days(i); return *this; }
  85     wxDate &operator-=(long i) { m_date -= wxTimeSpan::Days(i); return *this; }
  86
  87     wxDate &operator++() { return *this += 1; }
  88     wxDate &operator++(int) { return *this += 1; }
  89     wxDate &operator--() { return *this -= 1; }
  90     wxDate &operator--(int) { return *this -= 1; }
  91
  92 #if wxUSE_STD_IOSTREAM
  93     friend ostream WXDLLEXPORT & operator <<(ostream &os, const wxDate &dt)
  94         { return os << dt.FormatDate().mb_str(); }
  95 #endif
  96
  97     void  SetFormat(int format) { m_displayFormat = format; }
  98     int   SetOption(int option, bool enable = TRUE)
  99     {
 100         if ( enable )
 101             m_displayOptions |= option;
 102         else
 103             m_displayOptions &= ~option;
 104
 105         return 1; // (VZ: whatever it means)
 106     }
 107
 108     // returns julian date (VZ: the integral part of Julian Day Number)
 109     long GetJulianDate() const
 110         { return (long)(m_date.GetJulianDayNumber() - 0.5); }
 111
 112     // returns relative date since Jan. 1
 113     int GetDayOfYear() const
 114         { return m_date.GetDayOfYear(); }
 115
 116     // returns TRUE if leap year, FALSE if not
 117     bool IsLeapYear() const
 118         { return wxDateTime::IsLeapYear(m_date.GetYear()); }
 119
 120     // Sets to current system date
 121     wxDate &Set()
 122         { m_date = wxDateTime::Today(); return (wxDate&)*this; }
 123     wxDate &Set(long lJulian)
 124         { m_date.Set((double)(lJulian + 0.5)); return (wxDate&)*this; }
 125     wxDate &Set(int nMonth, int nDay, int nYear)
 126         { m_date.Set(nDay, (wxDateTime::Month)nMonth, nYear); return *this; }
 127
 128     // May also pass neg# to decrement
 129     wxDate &AddWeeks(int nCount = 1)
 130         { m_date += wxDateSpan::Weeks(nCount); return *this; }
 131     wxDate &AddMonths(int nCount = 1)
 132         { m_date += wxDateSpan::Months(nCount); return *this; }
 133     wxDate &AddYears(int nCount = 1)
 134         { m_date += wxDateSpan::Years(nCount); return *this; }
 135
 136     // Numeric Day of date object
 137     int GetDay() const { return m_date.GetDay(); }
 138     // Number of days in month(1..31)
 139     int GetDaysInMonth() const
 140     {
 141         return wxDateTime::GetNumberOfDays((wxDateTime::Month)m_date.GetMonth(),
 142                                            m_date.GetYear());
 143     }
 144
 145     // First Day Of Month(1..7)
 146     int GetFirstDayOfMonth() const
 147         { return wxDate(GetMonth(), 1, GetYear()).GetDayOfWeek(); }
 148
 149     // Character Day Of Week('Sunday'..'Saturday')
 150     wxString GetDayOfWeekName() const { return FormatDate(wxDAY); }
 151     int GetDayOfWeek() const { return (int)m_date.GetWeekDay() + 1; }
 152
 153     // Numeric Week Of Month(1..6) (VZ: I'd love to see a month with 6 weeks)
 154     int GetWeekOfMonth() const { return m_date.GetWeekOfMonth(); }
 155     // Numeric Week Of Year(1..52) (VZ: but there are years with 53 weeks)
 156     int GetWeekOfYear() const { return m_date.GetWeekOfYear(); }
 157
 158     // Character Month name
 159     wxString GetMonthName() { return FormatDate(wxMONTH); }
 160     // Month Number(1..12)
 161     int GetMonth() const { return m_date.GetMonth() + 1; }
 162
 163     // First Date Of Month
 164     wxDate GetMonthStart() const { return(wxDate(GetMonth(), 1, GetYear())); }
 165     // Last Date Of Month
 166     wxDate GetMonthEnd() const { return wxDate(GetMonth()+1, 1, GetYear())-1; }
 167
 168     // eg. 1992
 169     int GetYear() const { return m_date.GetYear(); }
 170     // First Date Of Year
 171     wxDate GetYearStart() const { return wxDate(1, 1, GetYear()); }
 172     // Last Date Of Year
 173     wxDate GetYearEnd() const { return wxDate(1, 1, GetYear()+1) - 1; }
 174
 175     bool IsBetween(const wxDate& first, const wxDate& second) const
 176     {
 177         return m_date.IsBetween(first.m_date, second.m_date);
 178     }
 179
 180     wxDate Previous(int dayOfWeek) const
 181     {
 182         wxDate prev = *this;
 183         int dow = GetDayOfWeek();
 184         prev -= dayOfWeek > dow ? 7 - (dayOfWeek - dow) : dow - dayOfWeek;
 185
 186         return prev;
 187     }
 188
 189     wxString FormatDate(int type = -1) const
 190     {
 191         static const wxChar *formats[] =
 192         {
 193             // MDY          (week)DAY   MONTH   FULL                 EUROPEAN
 194             _T("%m/%d/%Y"), _T("%A"), _T("%B"), _T("%A, %B %d, %Y"), _T("%d %B %Y")
 195         };
 196
 197         wxString fmt = formats[type == -1 ? m_displayFormat : type];
 198
 199         if ( m_displayOptions & wxDATE_ABBR )
 200         {
 201             fmt.Replace(_T("A"), _T("a"));
 202             fmt.Replace(_T("B"), _T("b"));
 203         }
 204         if ( m_displayOptions & wxNO_CENTURY )
 205         {
 206             fmt.Replace(_T("Y"), _T("y"));
 207         }
 208
 209         return m_date.Format(fmt);
 210     }
 211
 212 protected:
 213     void Init() { m_displayFormat = wxMDY; m_displayOptions = 0; }
 214
 215 #if 0 // the old wxDate members - unused any more
 216     unsigned long julian; // see julDate();  days since 1/1/4713 B.C.
 217     int month;            // see NMonth()
 218     int day;              // see Day()
 219     int year;             // see NYear4()
 220     int day_of_week;      // see NDOW();  1 = Sunday, ... 7 = Saturday
 221
 222     void julian_to_mdy();         // convert julian day to mdy
 223     void julian_to_wday();        // convert julian day to day_of_week
 224     void mdy_to_julian();         // convert mdy to julian day
 225 #endif // 0
 226
 227 private:
 228     wxDateTime m_date;
 229
 230     int m_displayFormat;
 231     int m_displayOptions;
 232
 233 private:
 234     DECLARE_DYNAMIC_CLASS(wxDate)
 235 };
 236
 237 // ----------------------------------------------------------------------------
 238 // global functions
 239 // ----------------------------------------------------------------------------
 240
 241 inline bool WXDLLEXPORT operator <(const wxDate &dt1, const wxDate &dt2)
 242     { return dt1.GetJulianDate() < dt2.GetJulianDate(); }
 243 inline bool WXDLLEXPORT operator <=(const wxDate &dt1, const wxDate &dt2)
 244     { return dt1.GetJulianDate() <= dt2.GetJulianDate(); }
 245 inline bool WXDLLEXPORT operator >(const wxDate &dt1, const wxDate &dt2)
 246     { return dt1.GetJulianDate() > dt2.GetJulianDate(); }
 247 inline bool WXDLLEXPORT operator >=(const wxDate &dt1, const wxDate &dt2)
 248     { return dt1.GetJulianDate() >= dt2.GetJulianDate(); }
 249 inline bool WXDLLEXPORT operator ==(const wxDate &dt1, const wxDate &dt2)
 250     { return dt1.GetJulianDate() == dt2.GetJulianDate(); }
 251 inline bool WXDLLEXPORT operator !=(const wxDate &dt1, const wxDate &dt2)
 252     { return dt1.GetJulianDate() != dt2.GetJulianDate(); }
 253
 254 #endif // wxUSE_TIMEDATE
 255 #endif
 256     // _WX_DATE_H_