support date display type (Gregorian and Buddhist)

pkg/core/calendar.go

@@ -0,0 +1,54 @@
+package core
+
+import "fmt"
+
+// CalendarDisplayType represents calendar display type
+type CalendarDisplayType byte
+
+// Calendar Display Type
+const (
+	CALENDAR_DISPLAY_TYPE_DEFAULT   CalendarDisplayType = 0
+	CALENDAR_DISPLAY_TYPE_GREGORAIN CalendarDisplayType = 1
+	CALENDAR_DISPLAY_TYPE_INVALID   CalendarDisplayType = 255
+)
+
+// String returns a textual representation of the calendar display type enum
+func (f CalendarDisplayType) String() string {
+	switch f {
+	case CALENDAR_DISPLAY_TYPE_DEFAULT:
+		return "Default"
+	case CALENDAR_DISPLAY_TYPE_GREGORAIN:
+		return "Gregorian"
+	case CALENDAR_DISPLAY_TYPE_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}
+
+// DateDisplayType represents date display type
+type DateDisplayType byte
+
+// Date Display Type
+const (
+	DATE_DISPLAY_TYPE_DEFAULT   DateDisplayType = 0
+	DATE_DISPLAY_TYPE_GREGORAIN DateDisplayType = 1
+	DATE_DISPLAY_TYPE_BUDDHIST  DateDisplayType = 2
+	DATE_DISPLAY_TYPE_INVALID   DateDisplayType = 255
+)
+
+// String returns a textual representation of the date display type enum
+func (f DateDisplayType) String() string {
+	switch f {
+	case DATE_DISPLAY_TYPE_DEFAULT:
+		return "Default"
+	case DATE_DISPLAY_TYPE_GREGORAIN:
+		return "Gregorian"
+	case DATE_DISPLAY_TYPE_BUDDHIST:
+		return "Buddhist"
+	case DATE_DISPLAY_TYPE_INVALID:
+		return "Invalid"
+	default:
+		return fmt.Sprintf("Invalid(%d)", int(f))
+	}
+}