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365 lines
9.6 KiB
365 lines
9.6 KiB
/*
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* timespinbox.cpp - time spinbox widget
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* Program: kalarm
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* Copyright © 2001-2004,2007,2008 by David Jarvie <djarvie@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "kalarm.h"
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#include <tqvalidator.h>
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#include <tqlineedit.h>
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#include <klocale.h>
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#include "timespinbox.moc"
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class TimeSpinBox::TimeValidator : public QValidator
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{
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public:
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TimeValidator(int minMin, int maxMin, TQWidget* parent, const char* name = 0)
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: TQValidator(parent, name),
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minMinute(minMin), maxMinute(maxMin), m12Hour(false), mPm(false) { }
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virtual State validate(TQString&, int&) const;
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int minMinute, maxMinute;
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bool m12Hour;
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bool mPm;
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};
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/*=============================================================================
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= Class TimeSpinBox
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= This is a spin box displaying a time in the format hh:mm, with a pair of
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= spin buttons for each of the hour and minute values.
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= It can operate in 3 modes:
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= 1) a time of day using the 24-hour clock.
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= 2) a time of day using the 12-hour clock. The value is held as 0:00 - 23:59,
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= but is displayed as 12:00 - 11:59. This is for use in a TimeEdit widget.
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= 3) a length of time, not restricted to the length of a day.
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=============================================================================*/
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/******************************************************************************
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* Construct a wrapping 00:00 - 23:59, or 12:00 - 11:59 time spin box.
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*/
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TimeSpinBox::TimeSpinBox(bool use24hour, TQWidget* parent, const char* name)
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: SpinBox2(0, 1439, 1, 60, parent, name),
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mMinimumValue(0),
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m12Hour(!use24hour),
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mPm(false),
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mInvalid(false),
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mEnteredSetValue(false)
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{
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mValidator = new TimeValidator(0, 1439, this, "TimeSpinBox validator");
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mValidator->m12Hour = m12Hour;
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setValidator(mValidator);
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setWrapping(true);
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setReverseWithLayout(false); // keep buttons the same way round even if right-to-left language
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setShiftSteps(5, 360); // shift-left button increments 5 min / 6 hours
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setSelectOnStep(false);
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setAlignment(Qt::AlignHCenter);
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connect(this, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(slotValueChanged(int)));
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}
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/******************************************************************************
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* Construct a non-wrapping time spin box.
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*/
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TimeSpinBox::TimeSpinBox(int minMinute, int maxMinute, TQWidget* parent, const char* name)
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: SpinBox2(minMinute, maxMinute, 1, 60, parent, name),
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mMinimumValue(minMinute),
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m12Hour(false),
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mInvalid(false),
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mEnteredSetValue(false)
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{
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mValidator = new TimeValidator(minMinute, maxMinute, this, "TimeSpinBox validator");
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setValidator(mValidator);
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setReverseWithLayout(false); // keep buttons the same way round even if right-to-left language
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setShiftSteps(5, 300); // shift-left button increments 5 min / 5 hours
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setSelectOnStep(false);
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setAlignment(TQApplication::reverseLayout() ? Qt::AlignLeft : Qt::AlignRight);
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}
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TQString TimeSpinBox::shiftWhatsThis()
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{
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return i18n("Press the Shift key while clicking the spin buttons to adjust the time by a larger step (6 hours / 5 minutes).");
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}
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TQTime TimeSpinBox::time() const
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{
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return TQTime(value() / 60, value() % 60);
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}
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TQString TimeSpinBox::mapValueToText(int v)
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{
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if (m12Hour)
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{
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if (v < 60)
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v += 720; // convert 0:nn to 12:nn
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else if (v >= 780)
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v -= 720; // convert 13 - 23 hours to 1 - 11
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}
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TQString s;
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s.sprintf((wrapping() ? "%02d:%02d" : "%d:%02d"), v/60, v%60);
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return s;
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}
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/******************************************************************************
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* Convert the user-entered text to a value in minutes.
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* The allowed formats are:
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* [hour]:[minute], where minute must be non-blank, or
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* hhmm, 4 digits, where hour < 24.
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*/
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int TimeSpinBox::mapTextToValue(bool* ok)
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{
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TQString text = cleanText();
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int colon = text.find(':');
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if (colon >= 0)
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{
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// [h]:m format for any time value
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TQString hour = text.left(colon).stripWhiteSpace();
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TQString minute = text.mid(colon + 1).stripWhiteSpace();
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if (!minute.isEmpty())
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{
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bool okmin;
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bool okhour = true;
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int m = minute.toUInt(&okmin);
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int h = 0;
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if (!hour.isEmpty())
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h = hour.toUInt(&okhour);
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if (okhour && okmin && m < 60)
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{
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if (m12Hour)
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{
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if (h == 0 || h > 12)
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h = 100; // error
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else if (h == 12)
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h = 0; // convert 12:nn to 0:nn
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if (mPm)
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h += 12; // convert to PM
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}
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int t = h * 60 + m;
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if (t >= mMinimumValue && t <= maxValue())
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{
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if (ok)
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*ok = true;
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return t;
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}
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}
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}
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}
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else if (text.length() == 4)
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{
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// hhmm format for time of day
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bool okn;
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int mins = text.toUInt(&okn);
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if (okn)
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{
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int m = mins % 100;
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int h = mins / 100;
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if (m12Hour)
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{
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if (h == 0 || h > 12)
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h = 100; // error
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else if (h == 12)
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h = 0; // convert 12:nn to 0:nn
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if (mPm)
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h += 12; // convert to PM
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}
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int t = h * 60 + m;
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if (h < 24 && m < 60 && t >= mMinimumValue && t <= maxValue())
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{
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if (ok)
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*ok = true;
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return t;
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}
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}
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}
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if (ok)
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*ok = false;
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return 0;
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}
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/******************************************************************************
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* Set the spin box as valid or invalid.
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* If newly invalid, the value is displayed as asterisks.
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* If newly valid, the value is set to the minimum value.
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*/
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void TimeSpinBox::setValid(bool valid)
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{
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if (valid && mInvalid)
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{
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mInvalid = false;
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if (value() < mMinimumValue)
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SpinBox2::setValue(mMinimumValue);
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setSpecialValueText(TQString());
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SpinBox2::setMinValue(mMinimumValue);
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}
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else if (!valid && !mInvalid)
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{
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mInvalid = true;
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SpinBox2::setMinValue(mMinimumValue - 1);
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setSpecialValueText(TQString::fromLatin1("**:**"));
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SpinBox2::setValue(mMinimumValue - 1);
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}
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}
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/******************************************************************************
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* Set the spin box's minimum value.
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*/
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void TimeSpinBox::setMinValue(int minutes)
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{
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mMinimumValue = minutes;
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SpinBox2::setMinValue(mMinimumValue - (mInvalid ? 1 : 0));
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}
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/******************************************************************************
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* Set the spin box's value.
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*/
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void TimeSpinBox::setValue(int minutes)
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{
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if (!mEnteredSetValue)
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{
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mEnteredSetValue = true;
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mPm = (minutes >= 720);
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if (minutes > maxValue())
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setValid(false);
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else
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{
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if (mInvalid)
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{
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mInvalid = false;
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setSpecialValueText(TQString());
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SpinBox2::setMinValue(mMinimumValue);
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}
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SpinBox2::setValue(minutes);
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mEnteredSetValue = false;
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}
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}
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}
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/******************************************************************************
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* Step the spin box value.
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* If it was invalid, set it valid and set the value to the minimum.
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*/
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void TimeSpinBox::stepUp()
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{
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if (mInvalid)
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setValid(true);
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else
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SpinBox2::stepUp();
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}
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void TimeSpinBox::stepDown()
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{
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if (mInvalid)
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setValid(true);
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else
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SpinBox2::stepDown();
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}
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bool TimeSpinBox::isValid() const
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{
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return value() >= mMinimumValue;
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}
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void TimeSpinBox::slotValueChanged(int value)
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{
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mPm = mValidator->mPm = (value >= 720);
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}
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TQSize TimeSpinBox::sizeHint() const
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{
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TQSize sz = SpinBox2::sizeHint();
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TQFontMetrics fm(font());
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return TQSize(sz.width() + fm.width(":"), sz.height());
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}
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TQSize TimeSpinBox::minimumSizeHint() const
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{
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TQSize sz = SpinBox2::minimumSizeHint();
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TQFontMetrics fm(font());
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return TQSize(sz.width() + fm.width(":"), sz.height());
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}
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/******************************************************************************
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* Validate the time spin box input.
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* The entered time must either be 4 digits, or it must contain a colon, but
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* hours may be blank.
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*/
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TQValidator::State TimeSpinBox::TimeValidator::validate(TQString& text, int& /*cursorPos*/) const
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{
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TQString cleanText = text.stripWhiteSpace();
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if (cleanText.isEmpty())
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return TQValidator::Intermediate;
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TQValidator::State state = TQValidator::Acceptable;
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TQString hour;
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bool ok;
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int hr = 0;
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int mn = 0;
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int colon = cleanText.find(':');
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if (colon >= 0)
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{
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TQString minute = cleanText.mid(colon + 1);
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if (minute.isEmpty())
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state = TQValidator::Intermediate;
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else if ((mn = minute.toUInt(&ok)) >= 60 || !ok)
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return TQValidator::Invalid;
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hour = cleanText.left(colon);
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}
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else if (maxMinute >= 1440)
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{
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// The hhmm form of entry is only allowed for time-of-day, i.e. <= 2359
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hour = cleanText;
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state = TQValidator::Intermediate;
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}
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else
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{
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if (cleanText.length() > 4)
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return TQValidator::Invalid;
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if (cleanText.length() < 4)
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state = TQValidator::Intermediate;
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hour = cleanText.left(2);
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TQString minute = cleanText.mid(2);
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if (!minute.isEmpty()
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&& ((mn = minute.toUInt(&ok)) >= 60 || !ok))
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return TQValidator::Invalid;
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}
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if (!hour.isEmpty())
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{
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hr = hour.toUInt(&ok);
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if (m12Hour)
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{
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if (hr == 0 || hr > 12)
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hr = 100; // error;
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else if (hr == 12)
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hr = 0; // convert 12:nn to 0:nn
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if (mPm)
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hr += 12; // convert to PM
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}
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if (!ok || hr > maxMinute/60)
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return TQValidator::Invalid;
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}
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if (state == TQValidator::Acceptable)
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{
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int t = hr * 60 + mn;
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if (t < minMinute || t > maxMinute)
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return TQValidator::Invalid;
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}
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return state;
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}
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