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Diffstat (limited to 'kalarm/lib/timeperiod.h')
| -rw-r--r-- | kalarm/lib/timeperiod.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/kalarm/lib/timeperiod.h b/kalarm/lib/timeperiod.h new file mode 100644 index 000000000..ef1a3b5c3 --- /dev/null +++ b/kalarm/lib/timeperiod.h @@ -0,0 +1,146 @@ +/* + * timeperiod.cpp - time period data entry widget + * Program: kalarm + * Copyright © 2003,2004,2007,2008 by David Jarvie <[email protected]> + * + * 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 <qhbox.h> +#include <qstring.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 <[email protected]> + */ +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, QWidget* 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 QString& units, const QString& dayWeek, const QString& hourMin = QString::null); + + static QString i18n_minutes(); // text of 'minutes' units, lower case + static QString i18n_Minutes(); // text of 'Minutes' units, initial capitals + static QString i18n_hours_mins(); // text of 'hours/minutes' units, lower case + static QString i18n_Hours_Mins(); // text of 'Hours/Minutes' units, initial capitals + static QString i18n_days(); // text of 'days' units, lower case + static QString i18n_Days(); // text of 'Days' units, initial capital + static QString i18n_weeks(); // text of 'weeks' units, lower case + static QString 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(); + + QWidgetStack* 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 |