--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/date.cpp	Sat Aug 12 03:16:26 2023 -0400
@@ -0,0 +1,54 @@
+#include "date.h"
+#include <QDate>
+#include <cstdint>
+
+#define MIN(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __a : __b; })
+#define MAX(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
+
+#define CLAMP(x, low, high) ({\
+  __typeof__(x) __x = (x); \
+  __typeof__(low) __low = (low);\
+  __typeof__(high) __high = (high);\
+  __x > __high ? __high : (__x < __low ? __low : __x);\
+  })
+
+Date::Date() {
+}
+
+Date::Date(int32_t y) {
+	year = MAX(0, y);
+}
+
+Date::Date(int32_t y, int8_t m, int8_t d) {
+	year = MAX(0, y);
+	month = CLAMP(m, 1, 12);
+	day = CLAMP(d, 1, 31);
+}
+
+void Date::SetYear(int32_t y) {
+	year = MAX(0, y);
+}
+
+void Date::SetMonth(int8_t m) {
+	month = CLAMP(m, 1, 12);
+}
+
+void Date::SetDay(int8_t d) {
+	day = CLAMP(d, 1, 31);
+}
+
+int32_t Date::GetYear() {
+	return year;
+}
+
+int8_t Date::GetMonth() {
+	return month;
+}
+
+int8_t Date::GetDay() {
+	return day;
+}
+
+QDate Date::GetAsQDate() {
+	return QDate(year, month, day);
+}