Calendar Plug-in for .dan.g.'s ToDoList - In 10 Easy Steps™

//Written for the ToDoList (http://www.codeproject.com/KB/applications/todolist2.aspx)
//Design and latest version - http://www.codeproject.com/KB/applications/TDL_Calendar.aspx
//by demon.code.monkey@googlemail.com

#ifndef _CALENDARUTILS_H_
#define _CALENDARUTILS_H_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


//CCalendarUtils: a collection of static utils used by the Calendar DLL
class CCalendarUtils
{
//construction
public:
	CCalendarUtils()	{ ASSERT(FALSE); }	//don't instantiate me
	~CCalendarUtils()	{ ASSERT(FALSE); }	//don't instantiate me

//static functions
public:
	static CString	LongToString(long lValue);
	static time_t	DateToTime(const COleDateTime& _dt);
	static time_t	TimeToTime(const time_t& _t);
#ifdef _DEBUG
	static CString	DateToString(const COleDateTime& _dt);
#endif

	static void GetDateOnly(COleDateTime& _dt);
	static void GetToday(COleDateTime& _dt);
	static CString GetWeekday(int _iDayOfWeek, BOOL _bShort);
	static void	GetWeekdays(CStringList& _listDays, BOOL _bShort, BOOL _bWeekendsHidden);

	static int	CompareDates(const COleDateTime& _dt1, const COleDateTime& _dt2);

	static BOOL IsDateValid(const COleDateTime& _dt);
	static int	GetDaysInMonth(int _iMonth, int _iYear);

	static void	AddDay(COleDateTime& _dt, int _nNumDays=1);
	static void	SubtractDay(COleDateTime& _dt, int _nNumDays=1);
	static void AddMonth(COleDateTime& _dt, int _nNumMonths=1);
	static void SubtractMonth(COleDateTime& _dt, int _nNumMonths=1);
};


#endif//_CALENDARUTILS_H_