timestring.h

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/**********************************************************************
** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
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**********************************************************************/

#ifndef _TIMESTRING_H_
#define _TIMESTRING_H_
#include <qdatetime.h>
#include <qstring.h>

#if (QT_VERSION-0 >= 0x030000)
#define DateFormat QPEDateFormat
#endif

// return a string with the time based on whether or not you want
// you want it in 12 hour form.   if ampm is true, then return
// it in 12 hour (am/pm) form otherwise return it in 24 hour form
// in theory Qt 3,0 handles this better (hopefully obsoleteing this)
class DateFormat
{
public:
    // date format type 001,010,100 = day month year
    enum Order {
        DayMonthYear = 0x0111, // 0x001 + 0x010(0x2 << 3) + 0x100(0x4 << 3)
        MonthDayYear = 0x010A,
        YearMonthDay = 0x0054
    };

    DateFormat(QChar s = '/', Order so = MonthDayYear) : _shortOrder(so),
        _longOrder(so), _shortSeparator(s) { }
    DateFormat(QChar s, Order so, Order lo) :  _shortOrder(so),
        _longOrder(lo), _shortSeparator(s) { }
    DateFormat(const DateFormat &o) : _shortOrder(o._shortOrder),
        _longOrder(o._longOrder), _shortSeparator(o._shortSeparator) { }

    bool operator==(const DateFormat &o)
    {
        if (o._shortOrder == _shortOrder && o._longOrder == _longOrder &&
                o._shortSeparator == _shortSeparator)
            return TRUE;
        return FALSE;
    }

    // verbosity specifiers
    enum Verbosity {
        shortNumber = 0x01, // default
        longNumber  = 0x02,

        padNumber = 0x04,

        shortWord = 0x08, // default
        longWord = 0x10,

        showWeekDay = 0x20
    };

    QString toNumberString() const; // the M/D/Y string.
    QString toWordString() const; // the Month day, year string.

    QString numberDate(const QDate &d, int v = 0) const;
    QString wordDate(const QDate &d, int v = 0) const;

#ifndef QT_NO_DATASTREAM
    void load(QDataStream&);
    void save(QDataStream&) const;
#endif

    QChar separator() const { return _shortSeparator; };
    Order shortOrder() const { return _shortOrder; };
    Order longOrder() const { return _longOrder; };

private:
    Order _shortOrder;
    Order _longOrder;
    QChar _shortSeparator;
};

#ifndef QT_NO_DATASTREAM
QDataStream &operator<<(QDataStream &s, const DateFormat&df);
QDataStream &operator>>(QDataStream &s, DateFormat&df);
#endif

class TimeString
{
public:

    //enum DateFormat { MonthDayYear, DayMonthYear, ISO8601,
                      //YearMonthDay = ISO8601 };

    static QString shortDate( const QDate &d )
    { return shortDate( d, currentDateFormat() ); }
    static QString dateString( const QDate &d )
    { return dateString( d, currentDateFormat() ); }
    static QString longDateString( const QDate &d )
    { return longDateString( d, currentDateFormat() ); }
    static QString dateString( const QDateTime &dt, bool ampm, bool seconds )
    { return dateString( dt, ampm, seconds, currentDateFormat() ); }


    static QString dateString( const QDateTime &t, bool ampm = false );
    static QString timeString( const QTime &t, bool ampm, bool seconds );
    static QString timeString( const QTime &t, bool ampm = false );
    static QString shortTime( bool ampm, bool seconds );
    static QString shortTime( bool ampm = false );

    static QString numberDateString( const QDate &d, DateFormat );
    static QString numberDateString( const QDate &d )
    { return numberDateString( d, currentDateFormat() ); }
    static QString longNumberDateString( const QDate &d, DateFormat );
    static QString longNumberDateString( const QDate &d )
    { return longNumberDateString( d, currentDateFormat() ); }

    static QString shortDate( const QDate &, DateFormat );
    static QString dateString( const QDate &, DateFormat  );
    static QString longDateString( const QDate &, DateFormat );

    static DateFormat currentDateFormat();

private:
    static QString dateString( const QDateTime &t, bool ampm, bool seconds, DateFormat );


};

#endif

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