void Date::setDateAsWeekday(int yy,int nn,int ww)
{
int d;
if(nn>0)
{
setDate(yy,1,1);
int w=getWeekday();
if(ww>=w)
{
d=(nn-1)*7+ww-w;
}
else
{
d=(nn-1)*7+7+ww-w;
}
}
else
{
setDate(yy,12,31);
int w=getWeekday();
if(ww<=w)
{
d=(nn+1)*7+ww-w;
}
else
{
d=(nn+1)*7-7+ww-w;
}
}
addDays(d);
}
void Date::setDateAsWeekday(int yy,int mm,int nn,int ww)
{
int d;
setDate(yy,mm,1);
if(nn>0)
{
int w=getWeekday();
if(ww>=w)
{
d=(nn-1)*7+ww-w;
}
else
{
d=(nn-1)*7+7+ww-w;
}
}
else
{
setDate(yy,mm,getDaysOfMonth());
int w=getWeekday();
if(ww<=w)
{
d=(nn+1)*7+ww-w;
}
else
{
d=(nn+1)*7-7+ww-w;
}
}
addDays(d);
}
// #3: Sun Nov 6 08:49:37 1994 ;ANSI C's asctime() format
time_t atotime3 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s ); // need getLongWeekday()?
while ( isalpha(*s) ) s++;
while ( isspace(*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
while ( *s && ! isspace (*s) ) s++;
while ( isspace (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t tt = mktime ( &t );
return tt;
}
// #1: Sun, 06 Nov 1994 08:49:37 GMT ;RFC 822, updated by RFC 1123
time_t atotime1 ( char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s );
while ( *s && ! isdigit(*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t local = mktime ( &t );
// now, convert to utc
//time_t utc = time(NULL);
// get time here locally
//time_t here = localtime(&utc);
// what is the diff?
//long delta = here - utc;
// modify our time to make it into utc
//return local - delta;
return local;
}
// #2: Sunday, 06-Nov-94 08:49:37 GMT ;RFC 850,obsoleted by RFC1036
static time_t atotime2 ( const char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s ); // need getLongWeekday()?
while ( *s && ! isdigit ( *s ) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t global = timegm ( &t );
// skip HH:MM:SS
while ( ! isspace (*s) ) s++;
// skip spaces
while ( isspace (*s) ) s++;
// convert local time to "utc" or whatever timezone "s" points to,
// which is usually gmt or utc
int32_t tzoff = getTimeZone ( s ) ;
if ( tzoff != BADTIMEZONE ) global += tzoff;
return global;
}
void print_time(time_t tim) {
std::cout << getWeekday(tim) << std::endl;
std::cout << getSec(tim) << std::endl;
std::cout << getMin(tim) << std::endl;
std::cout << getHour(tim) << std::endl;
std::cout << getYear(tim) << std::endl;
std::cout << getDay(tim) << std::endl;
std::cout << getMonth(tim) << std::endl;
}
// #1: Sun, 06 Nov 1994 08:49:37 GMT ;RFC 822, updated by RFC 1123
time_t atotime1 ( const char *s ) {
// this time structure, once filled, will help yield a time_t
struct tm t;
// DAY OF WEEK
t.tm_wday = getWeekday ( s );
while ( *s && ! isdigit(*s) ) s++;
// DAY OF MONTH
t.tm_mday = atol ( s );
while ( *s && ! isalpha (*s) ) s++;
// MONTH
t.tm_mon = getMonth ( s );
while ( *s && ! isdigit (*s) ) s++;
// YEAR
t.tm_year = atol ( s ) - 1900 ; // # of years since 1900
while ( isdigit (*s) ) s++;
while ( isspace (*s) ) s++;
// TIME
getTime ( s , &t.tm_sec , &t.tm_min , &t.tm_hour );
// unknown if we're in daylight savings time
t.tm_isdst = -1;
// translate using mktime
time_t global = timegm ( &t );
// skip HH:MM:SS
while ( *s && ! isspace (*s) ) s++;
// no timezone following??? fix core.
if ( ! *s ) return global;
// skip spaces
while ( isspace (*s) ) s++;
// convert local time to "utc" or whatever timezone "s" points to,
// which is usually gmt or utc
int32_t tzoff = getTimeZone ( s ) ;
if ( tzoff != BADTIMEZONE ) global += tzoff;
return global;
// now, convert to utc
//time_t utc = time(NULL);
// get time here locally
//time_t here = localtime(&utc);
// what is the diff?
//int32_t delta = here - utc;
// modify our time to make it into utc
//return local - delta;
}
void setTime(TimeVal* timeVal)
{
/*
WRITE: 0xD0 ACK<< DS1307 write address
WRITE: 0x00 ACK<< location to write
WRITE: 0x00 ACK<< 0 seconds, reset CH bit to 0
WRITE: 0x30 ACK<< 30 minutes
WRITE: 0x09 ACK<< 9 hours, 24 hour clock mode
WRITE: 0x02 ACK<< Monday (day 2)
WRITE: 0x07 ACK<< 7th (date)
WRITE: 0x09 ACK<< September (month)
WRITE: 0x09 ACK<< '09 (year)
WRITE: 0x00 ACK<< Set control register to 0'
I2C STOP BIT
*/
// Compute the BCD data
uint8_t yearByte = toBCD(timeVal->year - 2000);
uint8_t monthByte = toBCD(timeVal->month);
uint8_t dateByte = toBCD(timeVal->date);
uint8_t dayByte = toBCD(getWeekday(timeVal) + 1);
uint8_t hourByte = toBCD(timeVal->hour);
uint8_t minByte = toBCD(timeVal->min);
uint8_t secByte = toBCD(timeVal->sec);
// Set device address and write mode
i2c_start_wait(DEV_DS1307 + I2C_WRITE);
// Write at address 0
i2c_write(0x00);
i2c_write(secByte); // Seconds, CH bit
i2c_write(minByte); // Minutes
i2c_write(hourByte); // Hours, 12/24h clock mode
i2c_write(dayByte); // Weekday
i2c_write(dateByte); // Date
i2c_write(monthByte); // Month
i2c_write(yearByte); // Year
// Set control register to 0
i2c_write(0x00);
// Stop, release bus
i2c_stop();
}
void printCalendar(int year, int month)
{
int i,j,weekday;
int months[2][13]={{0,31,28,31,30,31,30,31,31,30,31,30,31}, //平年
{0,31,29,31,30,31,30,31,31,30,31,30,31}}; //闰年
weekday = getWeekday(year,month,1);
printf(" %4d年%2d月 \n",year,month);
printf("日 一 二 三 四 五 六\n");
for(i = 0; i < weekday; i++)
{
printf(" ");
}
for(j = 1; j <= months[isLeapYear(year)][month]; j++, i = (i + 1) % 7)
{
printf("%2d%s",j,i == 6 ? "\n":" ");
}
printf("\n\n");
}
const char* getDayStr(TimeVal* time)
{
return dayNames[getWeekday(time)];
}