timespinbox.h

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/*
 *  timespinbox.h  -  time spinbox widget
 *  Program:  kalarm
 *  Copyright © 2001-2008 by David Jarvie <djarvie@kde.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef TIMESPINBOX_H
#define TIMESPINBOX_H

#include "spinbox2.h"
#include <QDateTime>


class TimeSpinBox : public SpinBox2
{
        Q_OBJECT
    public:
        explicit TimeSpinBox(bool use24hour, QWidget* parent = 0);
        TimeSpinBox(int minMinute, int maxMinute, QWidget* parent = 0);
        bool            isValid() const;
        void            setValid(bool);
        virtual QValidator::State validate(QString&, int& pos) const;
        QTime           time() const;
        virtual void    setMinimum(int minutes);
        virtual void    setMaximum(int minutes)      { SpinBox2::setMaximum(minutes); }
        void            setMaximum(const QTime& t)   { SpinBox2::setMaximum(t.hour()*60 + t.minute()); }
        QTime           maxTime() const              { int mv = maximum();  return QTime(mv/60, mv%60); }
        virtual void    stepBy(int increment);
        static QString  shiftWhatsThis();

        virtual QSize   sizeHint() const;
        virtual QSize   minimumSizeHint() const;

    public slots:
        virtual void    setValue(int minutes);
        void            setValue(const QTime& t)     { setValue(t.hour()*60 + t.minute()); }

    protected:
        virtual QString textFromValue(int v) const;
        virtual int     valueFromText(const QString&) const;

    private slots:
        void            slotValueChanged(int value);

    private:
        int             mMinimumValue;       // real minimum value, excluding special value for "**:**"
        bool            m12Hour;             // use 12-hour clock
        bool            mPm;                 // use PM for manually entered values (with 12-hour clock)
        bool            mInvalid;            // value is currently invalid (asterisks)
        bool            mEnteredSetValue;    // to prevent infinite recursion in setValue()
};

#endif // TIMESPINBOX_H

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