Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 364 insertions, 0 deletions

diff --git a/kalarm/lib/timespinbox.cpp b/kalarm/lib/timespinbox.cpp
new file mode 100644
index 000000000..7a22cd230
--- /dev/null
+++ b/kalarm/lib/timespinbox.cpp
@@ -0,0 +1,364 @@
+/*
+ *  timespinbox.cpp  -  time spinbox widget
+ *  Program:  kalarm
+ *  Copyright © 2001-2004,2007,2008 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.
+ */
+
+#include "kalarm.h"
+
+#include <qvalidator.h>
+#include <qlineedit.h>
+#include <klocale.h>
+
+#include "timespinbox.moc"
+
+
+class TimeSpinBox::TimeValidator : public QValidator
+{
+	public:
+		TimeValidator(int minMin, int maxMin, QWidget* parent, const char* name = 0)
+			: QValidator(parent, name),
+		          minMinute(minMin), maxMinute(maxMin), m12Hour(false), mPm(false) { }
+		virtual State validate(QString&, int&) const;
+		int  minMinute, maxMinute;
+		bool m12Hour;
+		bool mPm;
+};
+
+
+/*=============================================================================
+= Class TimeSpinBox
+= This is a spin box displaying a time in the format hh:mm, with a pair of
+= spin buttons for each of the hour and minute values.
+= It can operate in 3 modes:
+=  1) a time of day using the 24-hour clock.
+=  2) a time of day using the 12-hour clock. The value is held as 0:00 - 23:59,
+=     but is displayed as 12:00 - 11:59. This is for use in a TimeEdit widget.
+=  3) a length of time, not restricted to the length of a day.
+=============================================================================*/
+
+/******************************************************************************
+ * Construct a wrapping 00:00 - 23:59, or 12:00 - 11:59 time spin box.
+ */
+TimeSpinBox::TimeSpinBox(bool use24hour, QWidget* parent, const char* name)
+	: SpinBox2(0, 1439, 1, 60, parent, name),
+	  mMinimumValue(0),
+	  m12Hour(!use24hour),
+	  mPm(false),
+	  mInvalid(false),
+	  mEnteredSetValue(false)
+{
+	mValidator = new TimeValidator(0, 1439, this, "TimeSpinBox validator");
+	mValidator->m12Hour = m12Hour;
+	setValidator(mValidator);
+	setWrapping(true);
+	setReverseWithLayout(false);   // keep buttons the same way round even if right-to-left language
+	setShiftSteps(5, 360);    // shift-left button increments 5 min / 6 hours
+	setSelectOnStep(false);
+	setAlignment(Qt::AlignHCenter);
+	connect(this, SIGNAL(valueChanged(int)), SLOT(slotValueChanged(int)));
+}
+
+/******************************************************************************
+ * Construct a non-wrapping time spin box.
+ */
+TimeSpinBox::TimeSpinBox(int minMinute, int maxMinute, QWidget* parent, const char* name)
+	: SpinBox2(minMinute, maxMinute, 1, 60, parent, name),
+	  mMinimumValue(minMinute),
+	  m12Hour(false),
+	  mInvalid(false),
+	  mEnteredSetValue(false)
+{
+	mValidator = new TimeValidator(minMinute, maxMinute, this, "TimeSpinBox validator");
+	setValidator(mValidator);
+	setReverseWithLayout(false);   // keep buttons the same way round even if right-to-left language
+	setShiftSteps(5, 300);    // shift-left button increments 5 min / 5 hours
+	setSelectOnStep(false);
+	setAlignment(QApplication::reverseLayout() ? Qt::AlignLeft : Qt::AlignRight);
+}
+
+QString TimeSpinBox::shiftWhatsThis()
+{
+	return i18n("Press the Shift key while clicking the spin buttons to adjust the time by a larger step (6 hours / 5 minutes).");
+}
+
+QTime TimeSpinBox::time() const
+{
+	return QTime(value() / 60, value() % 60);
+}
+
+QString TimeSpinBox::mapValueToText(int v)
+{
+	if (m12Hour)
+	{
+		if (v < 60)
+			v += 720;      // convert 0:nn to 12:nn
+		else if (v >= 780)
+			v -= 720;      // convert 13 - 23 hours to 1 - 11
+	}
+	QString s;
+	s.sprintf((wrapping() ? "%02d:%02d" : "%d:%02d"), v/60, v%60);
+	return s;
+}
+
+/******************************************************************************
+ * Convert the user-entered text to a value in minutes.
+ * The allowed formats are:
+ *    [hour]:[minute], where minute must be non-blank, or
+ *    hhmm, 4 digits, where hour < 24.
+ */
+int TimeSpinBox::mapTextToValue(bool* ok)
+{
+	QString text = cleanText();
+	int colon = text.find(':');
+	if (colon >= 0)
+	{
+		// [h]:m format for any time value
+		QString hour   = text.left(colon).stripWhiteSpace();
+		QString minute = text.mid(colon + 1).stripWhiteSpace();
+		if (!minute.isEmpty())
+		{
+			bool okmin;
+			bool okhour = true;
+			int m = minute.toUInt(&okmin);
+			int h = 0;
+			if (!hour.isEmpty())
+				h = hour.toUInt(&okhour);
+			if (okhour  &&  okmin  &&  m < 60)
+			{
+				if (m12Hour)
+				{
+					if (h == 0  ||  h > 12)
+						h = 100;     // error
+					else if (h == 12)
+						h = 0;       // convert 12:nn to 0:nn
+					if (mPm)
+						h += 12;     // convert to PM
+				}
+				int t = h * 60 + m;
+				if (t >= mMinimumValue  &&  t <= maxValue())
+				{
+					if (ok)
+						*ok = true;
+					return t;
+				}
+			}
+		}
+	}
+	else if (text.length() == 4)
+	{
+		// hhmm format for time of day
+		bool okn;
+		int mins = text.toUInt(&okn);
+		if (okn)
+		{
+			int m = mins % 100;
+			int h = mins / 100;
+			if (m12Hour)
+			{
+				if (h == 0  ||  h > 12)
+					h = 100;    // error
+				else if (h == 12)
+					h = 0;      // convert 12:nn to 0:nn
+				if (mPm)
+					h += 12;    // convert to PM
+			}
+			int t = h * 60 + m;
+			if (h < 24  &&  m < 60  &&  t >= mMinimumValue  &&  t <= maxValue())
+			{
+				if (ok)
+					*ok = true;
+				return t;
+			}
+		}
+
+	}
+	if (ok)
+		*ok = false;
+	return 0;
+}
+
+/******************************************************************************
+ * Set the spin box as valid or invalid.
+ * If newly invalid, the value is displayed as asterisks.
+ * If newly valid, the value is set to the minimum value.
+ */
+void TimeSpinBox::setValid(bool valid)
+{
+	if (valid  &&  mInvalid)
+	{
+		mInvalid = false;
+		if (value() < mMinimumValue)
+			SpinBox2::setValue(mMinimumValue);
+		setSpecialValueText(QString());
+		SpinBox2::setMinValue(mMinimumValue);
+	}
+	else if (!valid  &&  !mInvalid)
+	{
+		mInvalid = true;
+		SpinBox2::setMinValue(mMinimumValue - 1);
+		setSpecialValueText(QString::fromLatin1("**:**"));
+		SpinBox2::setValue(mMinimumValue - 1);
+	}
+}
+
+/******************************************************************************
+* Set the spin box's minimum value.
+*/
+void TimeSpinBox::setMinValue(int minutes)
+{
+	mMinimumValue = minutes;
+	SpinBox2::setMinValue(mMinimumValue - (mInvalid ? 1 : 0));
+}
+
+/******************************************************************************
+ * Set the spin box's value.
+ */
+void TimeSpinBox::setValue(int minutes)
+{
+	if (!mEnteredSetValue)
+	{
+		mEnteredSetValue = true;
+		mPm = (minutes >= 720);
+		if (minutes > maxValue())
+			setValid(false);
+		else
+		{
+			if (mInvalid)
+			{
+				mInvalid = false;
+				setSpecialValueText(QString());
+				SpinBox2::setMinValue(mMinimumValue);
+			}
+			SpinBox2::setValue(minutes);
+			mEnteredSetValue = false;
+		}
+	}
+}
+
+/******************************************************************************
+ * Step the spin box value.
+ * If it was invalid, set it valid and set the value to the minimum.
+ */
+void TimeSpinBox::stepUp()
+{
+	if (mInvalid)
+		setValid(true);
+	else
+		SpinBox2::stepUp();
+}
+
+void TimeSpinBox::stepDown()
+{
+	if (mInvalid)
+		setValid(true);
+	else
+		SpinBox2::stepDown();
+}
+
+bool TimeSpinBox::isValid() const
+{
+	return value() >= mMinimumValue;
+}
+
+void TimeSpinBox::slotValueChanged(int value)
+{
+	mPm = mValidator->mPm = (value >= 720);
+}
+
+QSize TimeSpinBox::sizeHint() const
+{
+	QSize sz = SpinBox2::sizeHint();
+	QFontMetrics fm(font());
+	return QSize(sz.width() + fm.width(":"), sz.height());
+}
+
+QSize TimeSpinBox::minimumSizeHint() const
+{
+	QSize sz = SpinBox2::minimumSizeHint();
+	QFontMetrics fm(font());
+	return QSize(sz.width() + fm.width(":"), sz.height());
+}
+
+/******************************************************************************
+ * Validate the time spin box input.
+ * The entered time must either be 4 digits, or it must contain a colon, but
+ * hours may be blank.
+ */
+QValidator::State TimeSpinBox::TimeValidator::validate(QString& text, int& /*cursorPos*/) const
+{
+	QString cleanText = text.stripWhiteSpace();
+	if (cleanText.isEmpty())
+		return QValidator::Intermediate;
+	QValidator::State state = QValidator::Acceptable;
+	QString hour;
+	bool ok;
+	int hr = 0;
+	int mn = 0;
+	int colon = cleanText.find(':');
+	if (colon >= 0)
+	{
+		QString minute = cleanText.mid(colon + 1);
+		if (minute.isEmpty())
+			state = QValidator::Intermediate;
+		else if ((mn = minute.toUInt(&ok)) >= 60  ||  !ok)
+			return QValidator::Invalid;
+
+		hour = cleanText.left(colon);
+	}
+	else if (maxMinute >= 1440)
+	{
+		// The hhmm form of entry is only allowed for time-of-day, i.e. <= 2359
+		hour = cleanText;
+		state = QValidator::Intermediate;
+	}
+	else
+	{
+		if (cleanText.length() > 4)
+			return QValidator::Invalid;
+		if (cleanText.length() < 4)
+			state = QValidator::Intermediate;
+		hour = cleanText.left(2);
+		QString minute = cleanText.mid(2);
+		if (!minute.isEmpty()
+		&&  ((mn = minute.toUInt(&ok)) >= 60  ||  !ok))
+			return QValidator::Invalid;
+	}
+
+	if (!hour.isEmpty())
+	{
+		hr = hour.toUInt(&ok);
+		if (m12Hour)
+		{
+			if (hr == 0  ||  hr > 12)
+				hr = 100;    // error;
+			else if (hr == 12)
+				hr = 0;      // convert 12:nn to 0:nn
+			if (mPm)
+				hr += 12;    // convert to PM
+		}
+		if (!ok  ||  hr > maxMinute/60)
+			return QValidator::Invalid;
+	}
+	if (state == QValidator::Acceptable)
+	{
+		int t = hr * 60 + mn;
+		if (t < minMinute  ||  t > maxMinute)
+			return QValidator::Invalid;
+	}
+	return state;
+}