X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Ftime%2Fdatetime.h;fp=source%2Ftime%2Fdatetime.h;h=4f439e6be7acde84557bf136ee8f05e2c5823239;hp=0000000000000000000000000000000000000000;hb=80bbee2f401b4af71cb1b80508bdb0d2bb61fa40;hpb=7ff2cc6e945c770c64d39089a2c27b33305495dd

diff --git a/source/time/datetime.h b/source/time/datetime.h
new file mode 100644
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--- /dev/null
+++ b/source/time/datetime.h
@@ -0,0 +1,70 @@
+/* $Id$ */
+#ifndef MSP_TIME_DATETIME_H_
+#define MSP_TIME_DATETIME_H_
+
+#include <stdint.h>
+#include <string>
+
+namespace Msp {
+namespace Time {
+
+class TimeDelta;
+class TimeStamp;
+
+/**
+Provides handling of arbitary dates and times.  Can represent a moment of time
+in the range of about ±2.1×10⁹ years.  It can also be formatted into a string
+for presentation to the user.
+
+Due to the complex internal representation, arithmetic operations on a DateTime
+are relatively slow.  For purposes of internal scheduling in a program, a
+TimeStamp is a better choice.
+*/
+class DateTime
+{
+public:
+	DateTime(const TimeStamp &);
+	DateTime(int32_t, uint8_t, uint8_t);
+	DateTime(int32_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t);
+	DateTime(int32_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint32_t);
+	
+	int32_t  get_year() const   { return year; }
+	uint8_t  get_month() const  { return month; }
+	uint8_t  get_mday() const   { return mday; }
+	uint8_t  get_hour() const   { return hour; }
+	uint8_t  get_minute() const { return minute; }
+	uint8_t  get_second() const { return second; }
+	uint32_t get_usec() const   { return usec; }
+
+	void add_days(int32_t);
+
+	DateTime operator+(const TimeDelta &) const;
+	DateTime &operator+=(const TimeDelta &);
+
+	bool operator==(const DateTime &d) const { return cmp(d)==0; }
+	bool operator!=(const DateTime &d) const { return cmp(d)!=0; }
+	bool operator<(const DateTime &d) const { return cmp(d)<0; }
+	bool operator<=(const DateTime &d) const { return cmp(d)<=0; }
+	bool operator>(const DateTime &d) const { return cmp(d)>0; }
+	bool operator>=(const DateTime &d) const { return cmp(d)>=0; }
+
+	int cmp(const DateTime &) const;
+	TimeStamp get_timestamp() const;
+	std::string format(const std::string &) const;
+private:
+	int32_t year;
+	uint8_t month;
+	uint8_t mday;
+	uint8_t hour;
+	uint8_t minute;
+	uint8_t second;
+	uint32_t usec;
+
+	void add_raw(int64_t);
+	void normalize();
+};
+
+} // namespace Time
+} // namespace Msp
+
+#endif