1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #include "xfa/src/fgas/src/fgas_base.h"
8 const uint8_t g_FXDaysPerMonth[12] = {31, 28, 31, 30, 31, 30,
9                                       31, 31, 30, 31, 30, 31};
10 const uint8_t g_FXDaysPerLeapMonth[12] = {31, 29, 31, 30, 31, 30,
11                                           31, 31, 30, 31, 30, 31};
12 const int32_t g_FXDaysBeforeMonth[12] = {0,   31,  59,  90,  120, 151,
13                                          181, 212, 243, 273, 304, 334};
14 const int32_t g_FXDaysBeforeLeapMonth[12] = {0,   31,  60,  91,  121, 152,
15                                              182, 213, 244, 274, 305, 335};
16 const int32_t g_FXDaysPerYear = 365;
17 const int32_t g_FXDaysPerLeapYear = 366;
18 const int32_t g_FXDaysPer4Years = 1461;
19 const int32_t g_FXDaysPer100Years = 36524;
20 const int32_t g_FXDaysPer400Years = 146097;
21 const int64_t g_FXMillisecondsPerSecond = 1000;
22 const int64_t g_FXMillisecondsPerMinute = 60000;
23 const int64_t g_FXMillisecondsPerHour = 3600000;
24 const int64_t g_FXMillisecondsPerDay = 86400000;
25 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || \
26     _FX_OS_ == _FX_WIN64_
27 const int64_t g_FXMillisecondsPerYear = 0x0757B12C00;
28 const int64_t g_FXMillisecondsPerLeapYear = 0x075CD78800;
29 const int64_t g_FXMillisecondsPer4Years = 0x1D63EB0C00;
30 const int64_t g_FXMillisecondsPer100Years = 0x02DEBCCDD000;
31 const int64_t g_FXMillisecondsPer400Years = 0x0B7AF85D9C00;
32 #endif
FX_IsLeapYear(int32_t iYear)33 FX_BOOL FX_IsLeapYear(int32_t iYear) {
34   FXSYS_assert(iYear != 0);
35   return ((iYear % 4) == 0 && (iYear % 100) != 0) || (iYear % 400) == 0;
36 }
FX_DaysInYear(int32_t iYear)37 int32_t FX_DaysInYear(int32_t iYear) {
38   FXSYS_assert(iYear != 0);
39   return FX_IsLeapYear(iYear) ? g_FXDaysPerLeapYear : g_FXDaysPerYear;
40 }
FX_DaysInMonth(int32_t iYear,uint8_t iMonth)41 uint8_t FX_DaysInMonth(int32_t iYear, uint8_t iMonth) {
42   FXSYS_assert(iYear != 0);
43   FXSYS_assert(iMonth >= 1 && iMonth <= 12);
44   const uint8_t* p =
45       FX_IsLeapYear(iYear) ? g_FXDaysPerLeapMonth : g_FXDaysPerMonth;
46   return p[iMonth - 1];
47 }
FX_DaysBeforeMonthInYear(int32_t iYear,uint8_t iMonth)48 static int32_t FX_DaysBeforeMonthInYear(int32_t iYear, uint8_t iMonth) {
49   FXSYS_assert(iYear != 0);
50   FXSYS_assert(iMonth >= 1 && iMonth <= 12);
51   const int32_t* p =
52       FX_IsLeapYear(iYear) ? g_FXDaysBeforeLeapMonth : g_FXDaysBeforeMonth;
53   return p[iMonth - 1];
54 }
FX_DateToDays(int32_t iYear,uint8_t iMonth,uint8_t iDay,FX_BOOL bIncludeThisDay=FALSE)55 static int64_t FX_DateToDays(int32_t iYear,
56                              uint8_t iMonth,
57                              uint8_t iDay,
58                              FX_BOOL bIncludeThisDay = FALSE) {
59   FXSYS_assert(iYear != 0);
60   FXSYS_assert(iMonth >= 1 && iMonth <= 12);
61   FXSYS_assert(iDay >= 1 && iDay <= FX_DaysInMonth(iYear, iMonth));
62   int64_t iDays = FX_DaysBeforeMonthInYear(iYear, iMonth);
63   iDays += iDay;
64   if (!bIncludeThisDay) {
65     iDays--;
66   }
67   if (iYear > 0) {
68     iYear--;
69   } else {
70     iDays -= FX_DaysInYear(iYear);
71     iYear++;
72   }
73   return iDays + (int64_t)iYear * 365 + iYear / 4 - iYear / 100 + iYear / 400;
74 }
FX_DaysToDate(int64_t iDays,int32_t & iYear,uint8_t & iMonth,uint8_t & iDay)75 static void FX_DaysToDate(int64_t iDays,
76                           int32_t& iYear,
77                           uint8_t& iMonth,
78                           uint8_t& iDay) {
79   FX_BOOL bBC = iDays < 0;
80   if (bBC) {
81     iDays = -iDays;
82   }
83   iYear = 1;
84   iMonth = 1;
85   iDay = 1;
86   if (iDays >= g_FXDaysPer400Years) {
87     iYear += (int32_t)(iDays / g_FXDaysPer400Years * 400);
88     iDays %= g_FXDaysPer400Years;
89   }
90   if (iDays >= g_FXDaysPer100Years) {
91     if (iDays == g_FXDaysPer100Years * 4) {
92       iYear += 300;
93       iDays -= g_FXDaysPer100Years * 3;
94     } else {
95       iYear += (int32_t)(iDays / g_FXDaysPer100Years * 100);
96       iDays %= g_FXDaysPer100Years;
97     }
98   }
99   if (iDays >= g_FXDaysPer4Years) {
100     iYear += (int32_t)(iDays / g_FXDaysPer4Years * 4);
101     iDays %= g_FXDaysPer4Years;
102   }
103   while (TRUE) {
104     int32_t iYearDays = FX_DaysInYear(iYear);
105     if (iDays < iYearDays) {
106       if (bBC) {
107         iYear = -iYear;
108         iDays = iYearDays - iDays;
109       }
110       break;
111     }
112     iYear++;
113     iDays -= iYearDays;
114   }
115   while (TRUE) {
116     int32_t iMonthDays = FX_DaysInMonth(iYear, iMonth);
117     if (iDays < iMonthDays) {
118       break;
119     }
120     iMonth++;
121     iDays -= iMonthDays;
122   }
123   iDay += (uint8_t)iDays;
124 }
125 #if _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_ANDROID_ || \
126     _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_
127 #include <time.h>
128 #include <sys/time.h>
129 #endif
130 typedef struct _FXUT_SYSTEMTIME {
131   FX_WORD wYear;
132   FX_WORD wMonth;
133   FX_WORD wDayOfWeek;
134   FX_WORD wDay;
135   FX_WORD wHour;
136   FX_WORD wMinute;
137   FX_WORD wSecond;
138   FX_WORD wMilliseconds;
139 } FXUT_SYSTEMTIME;
Now()140 void CFX_Unitime::Now() {
141   FXUT_SYSTEMTIME utLocal;
142 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || \
143     _FX_OS_ == _FX_WIN64_
144   ::GetLocalTime((LPSYSTEMTIME)&utLocal);
145 #elif _FX_OS_ != _FX_EMBEDDED_
146 #if 1
147   timeval curTime;
148   gettimeofday(&curTime, NULL);
149 #else
150   struct timespec curTime;
151   clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &curTime);
152 #endif
153   struct tm st;
154   localtime_r(&curTime.tv_sec, &st);
155   utLocal.wYear = st.tm_year + 1900;
156   utLocal.wMonth = st.tm_mon + 1;
157   utLocal.wDayOfWeek = st.tm_wday;
158   utLocal.wDay = st.tm_mday;
159   utLocal.wHour = st.tm_hour;
160   utLocal.wMinute = st.tm_min;
161   utLocal.wSecond = st.tm_sec;
162   utLocal.wMilliseconds = curTime.tv_usec / 1000;
163 #endif
164   Set(utLocal.wYear, (uint8_t)utLocal.wMonth, (uint8_t)utLocal.wDay,
165       (uint8_t)utLocal.wHour, (uint8_t)utLocal.wMinute,
166       (uint8_t)utLocal.wSecond, (FX_WORD)utLocal.wMilliseconds);
167 }
SetGMTime()168 void CFX_Unitime::SetGMTime() {
169   FXUT_SYSTEMTIME utLocal;
170 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN32_MOBILE_ || \
171     _FX_OS_ == _FX_WIN64_
172   ::GetSystemTime((LPSYSTEMTIME)&utLocal);
173 #elif _FX_OS_ != _FX_EMBEDDED_
174 #if 1
175   timeval curTime;
176   gettimeofday(&curTime, NULL);
177 #else
178   struct timespec curTime;
179   clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &curTime);
180 #endif
181   struct tm st;
182   gmtime_r(&curTime.tv_sec, &st);
183   utLocal.wYear = st.tm_year + 1900;
184   utLocal.wMonth = st.tm_mon + 1;
185   utLocal.wDayOfWeek = st.tm_wday;
186   utLocal.wDay = st.tm_mday;
187   utLocal.wHour = st.tm_hour;
188   utLocal.wMinute = st.tm_min;
189   utLocal.wSecond = st.tm_sec;
190   utLocal.wMilliseconds = curTime.tv_usec / 1000;
191 #endif
192   Set(utLocal.wYear, (uint8_t)utLocal.wMonth, (uint8_t)utLocal.wDay,
193       (uint8_t)utLocal.wHour, (uint8_t)utLocal.wMinute,
194       (uint8_t)utLocal.wSecond, (FX_WORD)utLocal.wMilliseconds);
195 }
Set(int32_t year,uint8_t month,uint8_t day,uint8_t hour,uint8_t minute,uint8_t second,FX_WORD millisecond)196 void CFX_Unitime::Set(int32_t year,
197                       uint8_t month,
198                       uint8_t day,
199                       uint8_t hour,
200                       uint8_t minute,
201                       uint8_t second,
202                       FX_WORD millisecond) {
203   FXSYS_assert(hour <= 23);
204   FXSYS_assert(minute <= 59);
205   FXSYS_assert(second <= 59);
206   FXSYS_assert(millisecond <= 999);
207   m_iUnitime = (int64_t)hour * g_FXMillisecondsPerHour +
208                (int64_t)minute * g_FXMillisecondsPerMinute +
209                (int64_t)second * g_FXMillisecondsPerSecond + millisecond;
210   if (year > 0) {
211     m_iUnitime =
212         m_iUnitime +
213         FX_DateToDays(year, month, day, FALSE) * g_FXMillisecondsPerDay;
214   }
215 }
Set(FX_UNITIME t)216 void CFX_Unitime::Set(FX_UNITIME t) {
217   m_iUnitime = t;
218 }
GetYear() const219 int32_t CFX_Unitime::GetYear() const {
220   int32_t iYear;
221   uint8_t iMonth, iDay;
222   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
223   return iYear;
224 }
GetMonth() const225 uint8_t CFX_Unitime::GetMonth() const {
226   int32_t iYear;
227   uint8_t iMonth, iDay;
228   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
229   return iMonth;
230 }
GetDay() const231 uint8_t CFX_Unitime::GetDay() const {
232   int32_t iYear;
233   uint8_t iMonth, iDay;
234   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
235   return iDay;
236 }
GetDayOfWeek() const237 FX_WEEKDAY CFX_Unitime::GetDayOfWeek() const {
238   int32_t v = (int32_t)((m_iUnitime / g_FXMillisecondsPerDay + 1) % 7);
239   if (v < 0) {
240     v += 7;
241   }
242   return (FX_WEEKDAY)v;
243 }
GetDayOfYear() const244 FX_WORD CFX_Unitime::GetDayOfYear() const {
245   int32_t iYear;
246   uint8_t iMonth, iDay;
247   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
248   return FX_DaysBeforeMonthInYear(iYear, iMonth) + iDay;
249 }
GetDayOfAD() const250 int64_t CFX_Unitime::GetDayOfAD() const {
251   FX_BOOL bBC = m_iUnitime < 0;
252   int64_t iDays = m_iUnitime / g_FXMillisecondsPerDay;
253   iDays += bBC ? -1 : 0;
254   if (bBC && (m_iUnitime % g_FXMillisecondsPerDay) == 0) {
255     iDays++;
256   }
257   return iDays;
258 }
GetHour() const259 uint8_t CFX_Unitime::GetHour() const {
260   int32_t v = (int32_t)(m_iUnitime % g_FXMillisecondsPerDay);
261   if (v < 0) {
262     v += g_FXMillisecondsPerDay;
263   }
264   return (uint8_t)(v / g_FXMillisecondsPerHour);
265 }
GetMinute() const266 uint8_t CFX_Unitime::GetMinute() const {
267   int32_t v = (int32_t)(m_iUnitime % g_FXMillisecondsPerHour);
268   if (v < 0) {
269     v += g_FXMillisecondsPerHour;
270   }
271   return (uint8_t)(v / g_FXMillisecondsPerMinute);
272 }
GetSecond() const273 uint8_t CFX_Unitime::GetSecond() const {
274   int32_t v = (int32_t)(m_iUnitime % g_FXMillisecondsPerMinute);
275   if (v < 0) {
276     v += g_FXMillisecondsPerMinute;
277   }
278   return (uint8_t)(v / g_FXMillisecondsPerSecond);
279 }
GetMillisecond() const280 FX_WORD CFX_Unitime::GetMillisecond() const {
281   int32_t v = (int32_t)(m_iUnitime % g_FXMillisecondsPerSecond);
282   if (v < 0) {
283     v += g_FXMillisecondsPerSecond;
284   }
285   return (FX_WORD)v;
286 }
AddYears(int32_t iYears)287 FX_BOOL CFX_Unitime::AddYears(int32_t iYears) {
288   FX_UNITIME ut = m_iUnitime;
289   if (ut < 0) {
290     ut = -ut;
291   }
292   FX_UNITIME r = ut % g_FXMillisecondsPerDay;
293   int32_t iYear;
294   uint8_t iMonth, iDay;
295   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
296   iYear += iYears;
297   if (iYear == 0) {
298     iYear = iYears > 0 ? 1 : -1;
299   }
300   m_iUnitime =
301       FX_DateToDays(iYear, iMonth, iDay, FALSE) * g_FXMillisecondsPerDay;
302   m_iUnitime += (iYear < 0) ? -r : r;
303   return TRUE;
304 }
AddMonths(int32_t iMonths)305 FX_BOOL CFX_Unitime::AddMonths(int32_t iMonths) {
306   FX_BOOL b = iMonths > 0;
307   FX_UNITIME ut = m_iUnitime;
308   if (ut < 0) {
309     ut = -ut;
310   }
311   FX_UNITIME r = ut % g_FXMillisecondsPerDay;
312   int32_t iYear;
313   uint8_t iMonth, iDay;
314   FX_DaysToDate(GetDayOfAD(), iYear, iMonth, iDay);
315   iMonths += iMonth;
316   while (iMonths < 1) {
317     iYear--, iMonths += 12;
318   }
319   while (iMonths > 12) {
320     iYear++, iMonths -= 12;
321   }
322   if (iYear == 0) {
323     iYear = b ? 1 : -1;
324   }
325   m_iUnitime = FX_DateToDays(iYear, (uint8_t)iMonths, iDay, FALSE) *
326                g_FXMillisecondsPerDay;
327   m_iUnitime += (iYear < 0) ? -r : r;
328   return TRUE;
329 }
AddDays(int32_t iDays)330 FX_BOOL CFX_Unitime::AddDays(int32_t iDays) {
331   m_iUnitime += (int64_t)iDays * g_FXMillisecondsPerDay;
332   return TRUE;
333 }
AddHours(int32_t iHours)334 FX_BOOL CFX_Unitime::AddHours(int32_t iHours) {
335   m_iUnitime += (int64_t)iHours * g_FXMillisecondsPerHour;
336   return TRUE;
337 }
AddMinutes(int32_t iMinutes)338 FX_BOOL CFX_Unitime::AddMinutes(int32_t iMinutes) {
339   m_iUnitime += (int64_t)iMinutes * g_FXMillisecondsPerMinute;
340   return TRUE;
341 }
AddSeconds(int32_t iSeconds)342 FX_BOOL CFX_Unitime::AddSeconds(int32_t iSeconds) {
343   m_iUnitime += ((int64_t)iSeconds) * g_FXMillisecondsPerSecond;
344   return TRUE;
345 }
AddMilliseconds(int32_t iMilliseconds)346 FX_BOOL CFX_Unitime::AddMilliseconds(int32_t iMilliseconds) {
347   m_iUnitime += iMilliseconds;
348   return TRUE;
349 }
Set(int32_t year,uint8_t month,uint8_t day,uint8_t hour,uint8_t minute,uint8_t second,FX_WORD millisecond)350 FX_BOOL CFX_DateTime::Set(int32_t year,
351                           uint8_t month,
352                           uint8_t day,
353                           uint8_t hour,
354                           uint8_t minute,
355                           uint8_t second,
356                           FX_WORD millisecond) {
357   ASSERT(year != 0);
358   ASSERT(month >= 1 && month <= 12);
359   ASSERT(day >= 1 && day <= FX_DaysInMonth(year, month));
360   ASSERT(hour <= 23);
361   ASSERT(minute <= 59);
362   ASSERT(second <= 59);
363   ASSERT(millisecond <= 999);
364   m_DateTime.Date.sDate.year = year;
365   m_DateTime.Date.sDate.month = month;
366   m_DateTime.Date.sDate.day = day;
367   m_DateTime.Time.sTime.hour = hour;
368   m_DateTime.Time.sTime.minute = minute;
369   m_DateTime.Time.sTime.second = second;
370   m_DateTime.Time.sTime.millisecond = millisecond;
371   return TRUE;
372 }
FromUnitime(FX_UNITIME t)373 FX_BOOL CFX_DateTime::FromUnitime(FX_UNITIME t) {
374   CFX_Unitime ut(t);
375   FX_DaysToDate(ut.GetDayOfAD(), m_DateTime.Date.sDate.year,
376                 m_DateTime.Date.sDate.month, m_DateTime.Date.sDate.day);
377   m_DateTime.Date.sDate.day = ut.GetHour();
378   m_DateTime.Time.sTime.minute = ut.GetMinute();
379   m_DateTime.Time.sTime.second = ut.GetSecond();
380   m_DateTime.Time.sTime.millisecond = ut.GetMillisecond();
381   return TRUE;
382 }
ToUnitime() const383 FX_UNITIME CFX_DateTime::ToUnitime() const {
384   FX_UNITIME v =
385       (int64_t)m_DateTime.Date.sDate.day * g_FXMillisecondsPerHour +
386       (int64_t)m_DateTime.Time.sTime.minute * g_FXMillisecondsPerMinute +
387       (int64_t)m_DateTime.Time.sTime.second * g_FXMillisecondsPerSecond +
388       m_DateTime.Time.sTime.millisecond;
389   v += FX_DateToDays(m_DateTime.Date.sDate.year, m_DateTime.Date.sDate.month,
390                      m_DateTime.Date.sDate.day, FALSE) *
391        g_FXMillisecondsPerDay;
392   return v;
393 }
GetYear() const394 int32_t CFX_DateTime::GetYear() const {
395   return m_DateTime.Date.sDate.year;
396 }
GetMonth() const397 uint8_t CFX_DateTime::GetMonth() const {
398   return m_DateTime.Date.sDate.month;
399 }
GetDay() const400 uint8_t CFX_DateTime::GetDay() const {
401   return m_DateTime.Date.sDate.day;
402 }
GetDayOfWeek() const403 FX_WEEKDAY CFX_DateTime::GetDayOfWeek() const {
404   int32_t v = (int32_t)(FX_DateToDays(m_DateTime.Date.sDate.year,
405                                       m_DateTime.Date.sDate.month,
406                                       m_DateTime.Date.sDate.day, TRUE) %
407                         7);
408   if (v < 0) {
409     v += 7;
410   }
411   return (FX_WEEKDAY)v;
412 }
GetDayOfYear() const413 FX_WORD CFX_DateTime::GetDayOfYear() const {
414   return FX_DaysBeforeMonthInYear(m_DateTime.Date.sDate.year,
415                                   m_DateTime.Date.sDate.month) +
416          m_DateTime.Date.sDate.day;
417 }
GetDayOfAD() const418 int64_t CFX_DateTime::GetDayOfAD() const {
419   return FX_DateToDays(m_DateTime.Date.sDate.year, m_DateTime.Date.sDate.month,
420                        m_DateTime.Date.sDate.day, TRUE);
421 }
GetHour() const422 uint8_t CFX_DateTime::GetHour() const {
423   return m_DateTime.Date.sDate.day;
424 }
GetMinute() const425 uint8_t CFX_DateTime::GetMinute() const {
426   return m_DateTime.Time.sTime.minute;
427 }
GetSecond() const428 uint8_t CFX_DateTime::GetSecond() const {
429   return m_DateTime.Time.sTime.second;
430 }
GetMillisecond() const431 FX_WORD CFX_DateTime::GetMillisecond() const {
432   return m_DateTime.Time.sTime.millisecond;
433 }
AddYears(int32_t iYears)434 FX_BOOL CFX_DateTime::AddYears(int32_t iYears) {
435   if (iYears == 0) {
436     return FALSE;
437   }
438   int32_t v = m_DateTime.Date.sDate.year + iYears;
439   if (v >= 0 && m_DateTime.Date.sDate.year < 0) {
440     v++;
441   } else if (v <= 0 && m_DateTime.Date.sDate.year > 0) {
442     v--;
443   }
444   m_DateTime.Date.sDate.year = v;
445   return TRUE;
446 }
AddMonths(int32_t iMonths)447 FX_BOOL CFX_DateTime::AddMonths(int32_t iMonths) {
448   if (iMonths == 0) {
449     return FALSE;
450   }
451   FX_BOOL b = iMonths > 0;
452   iMonths += m_DateTime.Date.sDate.month;
453   while (iMonths < 1) {
454     m_DateTime.Date.sDate.year--;
455     if (m_DateTime.Date.sDate.year == 0) {
456       m_DateTime.Date.sDate.year = -1;
457     }
458     iMonths += 12;
459   }
460   while (iMonths > 12) {
461     m_DateTime.Date.sDate.year++;
462     if (m_DateTime.Date.sDate.year == 0) {
463       m_DateTime.Date.sDate.year = 1;
464     }
465     iMonths -= 12;
466   }
467   if (m_DateTime.Date.sDate.year == 0) {
468     m_DateTime.Date.sDate.year = b ? 1 : -1;
469   }
470   m_DateTime.Date.sDate.month = (uint8_t)iMonths;
471   return TRUE;
472 }
AddDays(int32_t iDays)473 FX_BOOL CFX_DateTime::AddDays(int32_t iDays) {
474   if (iDays == 0) {
475     return FALSE;
476   }
477   int64_t v1 =
478       FX_DateToDays(m_DateTime.Date.sDate.year, m_DateTime.Date.sDate.month,
479                     m_DateTime.Date.sDate.day, TRUE);
480   int64_t v2 = v1 + iDays;
481   if (v2 <= 0 && v1 > 0) {
482     v2--;
483   } else if (v2 >= 0 && v1 < 0) {
484     v2++;
485   }
486   FX_DaysToDate(v2, m_DateTime.Date.sDate.year, m_DateTime.Date.sDate.month,
487                 m_DateTime.Date.sDate.day);
488   return TRUE;
489 }
AddHours(int32_t iHours)490 FX_BOOL CFX_DateTime::AddHours(int32_t iHours) {
491   if (iHours == 0) {
492     return FALSE;
493   }
494   iHours += m_DateTime.Date.sDate.day;
495   int32_t iDays = iHours / 24;
496   iHours %= 24;
497   if (iHours < 0) {
498     iDays--, iHours += 24;
499   }
500   m_DateTime.Date.sDate.day = (uint8_t)iHours;
501   if (iDays != 0) {
502     AddDays(iDays);
503   }
504   return TRUE;
505 }
AddMinutes(int32_t iMinutes)506 FX_BOOL CFX_DateTime::AddMinutes(int32_t iMinutes) {
507   if (iMinutes == 0) {
508     return FALSE;
509   }
510   iMinutes += m_DateTime.Time.sTime.minute;
511   int32_t iHours = iMinutes / 60;
512   iMinutes %= 60;
513   if (iMinutes < 0) {
514     iHours--, iMinutes += 60;
515   }
516   m_DateTime.Time.sTime.minute = (uint8_t)iMinutes;
517   if (iHours != 0) {
518     AddHours(iHours);
519   }
520   return TRUE;
521 }
AddSeconds(int32_t iSeconds)522 FX_BOOL CFX_DateTime::AddSeconds(int32_t iSeconds) {
523   if (iSeconds == 0) {
524     return FALSE;
525   }
526   iSeconds += m_DateTime.Time.sTime.second;
527   int32_t iMinutes = iSeconds / 60;
528   iSeconds %= 60;
529   if (iSeconds < 0) {
530     iMinutes--, iSeconds += 60;
531   }
532   m_DateTime.Time.sTime.second = (uint8_t)iSeconds;
533   if (iMinutes != 0) {
534     AddMinutes(iMinutes);
535   }
536   return TRUE;
537 }
AddMilliseconds(int32_t iMilliseconds)538 FX_BOOL CFX_DateTime::AddMilliseconds(int32_t iMilliseconds) {
539   if (iMilliseconds == 0) {
540     return FALSE;
541   }
542   iMilliseconds += m_DateTime.Time.sTime.millisecond;
543   int32_t iSeconds = (int32_t)(iMilliseconds / g_FXMillisecondsPerSecond);
544   iMilliseconds %= g_FXMillisecondsPerSecond;
545   if (iMilliseconds < 0) {
546     iSeconds--, iMilliseconds += g_FXMillisecondsPerSecond;
547   }
548   m_DateTime.Time.sTime.millisecond = (FX_WORD)iMilliseconds;
549   if (iSeconds != 0) {
550     AddSeconds(iSeconds);
551   }
552   return TRUE;
553 }
554