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/*
* timeperiod.cpp - time period data entry widget
* Program: kalarm
* Copyright © 2003,2004,2007,2008 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 TIMEPERIOD_H
#define TIMEPERIOD_H
#include <tqhbox.h>
#include <tqstring.h>
class QWidgetStack;
class ComboBox;
class SpinBox;
class TimeSpinBox;
/**
* @short Time period entry widget.
*
* The TimePeriod class provides a widget for entering a time period as a number of
* weeks, days, hours and minutes, or minutes.
*
* It displays a combo box to select the time units (weeks, days, hours and minutes, or
* minutes) alongside a spin box to enter the number of units. The type of spin box
* displayed alters according to the units selection: day, week and minute values are
* entered in a normal spin box, while hours and minutes are entered in a time spin box
* (with two pairs of spin buttons, one for hours and one for minutes).
*
* The widget may be set as read-only. This has the same effect as disabling it, except
* that its appearance is unchanged.
*
* @author David Jarvie <software@astrojar.org.uk>
*/
class TimePeriod : public QHBox
{
Q_OBJECT
public:
/** Units for the time period.
* @li MINUTES - the time period is entered as a number of minutes.
* @li HOURS_MINUTES - the time period is entered as an hours/minutes value.
* @li DAYS - the time period is entered as a number of days.
* @li WEEKS - the time period is entered as a number of weeks.
*/
enum Units { MINUTES, HOURS_MINUTES, DAYS, WEEKS };
/** Constructor.
* @param allowMinute Set false to prevent hours/minutes or minutes from
* being allowed as units; only days and weeks can ever be used,
* regardless of other method calls. Set true to allow minutes,
* hours/minutes, days or weeks as units.
* @param parent The parent object of this widget.
* @param name The name of this widget.
*/
TimePeriod(bool allowMinute, TQWidget* parent, const char* name = 0);
/** Returns true if the widget is read only. */
bool isReadOnly() const { return mReadOnly; }
/** Sets whether the widget is read-only for the user. If read-only,
* the time period cannot be edited and the units combo box is inactive.
* @param readOnly True to set the widget read-only, false to set it read-write.
*/
virtual void setReadOnly(bool readOnly);
/** Gets the entered time period expressed in minutes. */
int minutes() const;
/** Initialises the time period value.
* @param minutes The value of the time period to set, expressed as a number of minutes.
* @param dateOnly True to restrict the units available in the combo box to days or weeks.
* @param defaultUnits The units to display initially in the combo box.
*/
void setMinutes(int minutes, bool dateOnly, Units defaultUnits);
/** Enables or disables minutes and hours/minutes units in the combo box. To
* disable minutes and hours/minutes, set @p dateOnly true; to enable minutes
* and hours/minutes, set @p dateOnly false. But note that minutes and
* hours/minutes cannot be enabled if it was disallowed in the constructor.
*/
void setDateOnly(bool dateOnly) { setDateOnly(minutes(), dateOnly, true); }
/** Sets the maximum values for the minutes and hours/minutes, and days/weeks
* spin boxes.
* Set @p hourmin = 0 to leave the minutes and hours/minutes maximum unchanged.
*/
void setMaximum(int hourmin, int days);
/** Sets whether the editor text is to be selected whenever spin buttons are
* clicked. The default is to select it.
*/
void setSelectOnStep(bool select);
/** Sets the input focus to the count field. */
void setFocusOnCount();
/** Sets separate WhatsThis texts for the count spin boxes and the units combo box.
* If @p hourMin is omitted, both spin boxes are set to the same WhatsThis text.
*/
void setWhatsThis(const TQString& units, const TQString& dayWeek, const TQString& hourMin = TQString::null);
static TQString i18n_minutes(); // text of 'minutes' units, lower case
static TQString i18n_Minutes(); // text of 'Minutes' units, initial capitals
static TQString i18n_hours_mins(); // text of 'hours/minutes' units, lower case
static TQString i18n_Hours_Mins(); // text of 'Hours/Minutes' units, initial capitals
static TQString i18n_days(); // text of 'days' units, lower case
static TQString i18n_Days(); // text of 'Days' units, initial capital
static TQString i18n_weeks(); // text of 'weeks' units, lower case
static TQString i18n_Weeks(); // text of 'Weeks' units, initial capital
signals:
/** This signal is emitted whenever the value held in the widget changes.
* @param minutes The current value of the time period, expressed in minutes.
*/
void valueChanged(int minutes); // value has changed
private slots:
void slotUnitsSelected(int index);
void slotDaysChanged(int);
void slotTimeChanged(int minutes);
private:
Units setDateOnly(int minutes, bool dateOnly, bool signal);
void setUnitRange();
void showHourMin(bool hourMin);
void adjustDayWeekShown();
TQWidgetStack* mSpinStack; // displays either the days/weeks or hours:minutes spinbox
SpinBox* mSpinBox; // the minutes/days/weeks value spinbox
TimeSpinBox* mTimeSpinBox; // the hours:minutes value spinbox
ComboBox* mUnitsCombo;
int mMaxDays; // maximum day count
int mDateOnlyOffset; // for mUnitsCombo: 2 if minutes & hours/minutes are disabled, else 0
Units mMaxUnitShown; // for mUnitsCombo: maximum units shown
bool mNoHourMinute; // hours/minutes cannot be displayed, ever
bool mReadOnly; // the widget is read only
bool mHourMinuteRaised; // hours:minutes spinbox is currently displayed
};
#endif // TIMEPERIOD_H
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