When selecting a time zone, warn the user if the time zone file in /usr/share/zoneinfo for the selected time zone is missing

1 files changed, 35 insertions, 26 deletions

diff --git a/noncore/settings/netsystemtime/timetabwidget.cpp b/noncore/settings/netsystemtime/timetabwidget.cpp
index bcfbdf7..895514b 100644
--- a/noncore/settings/netsystemtime/timetabwidget.cpp
+++ b/noncore/settings/netsystemtime/timetabwidget.cpp
@@ -5,96 +5,98 @@
               =.
             .=l.
            .>+-=
  _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=          redistribute it and/or  modify it under
 :`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       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
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
 :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 */
 
 #include "timetabwidget.h"
 
 #include <opie2/oresource.h>
 
 #include <qpe/applnk.h>
 #include <qpe/config.h>
 #include <qpe/datebookmonth.h>
 #include <qpe/global.h>
 #include <qpe/tzselect.h>
 
 #if ( defined Q_WS_QWS || defined(_WS_QWS_) ) && !defined(QT_NO_COP)
 #include <qpe/qcopenvelope_qws.h>
 #endif
 
 #include <qcombobox.h>
 #include <qdatetime.h>
 #include <qframe.h>
 #include <qlabel.h>
 #include <qlayout.h>
 #include <qpushbutton.h>
 #include <qscrollview.h>
 #include <qspinbox.h>
+#include <qmessagebox.h>
+#include <qfile.h>
 
 #include <stdlib.h>
 #include <sys/time.h>
 
 static const int ValueAM = 0;
 static const int ValuePM = 1;
 
 TimeTabWidget::TimeTabWidget( QWidget *parent )
 	: QWidget( parent, 0x0, 0 )
 {
 	// Synchronize HW clock to systemtime
 	// This app will update systemtime
 	//  - if Cancel is clicked, will reset systemtime to HW clock's time
 	//  - if Ok is clicked, will leave systemtime as is
 	system("/sbin/hwclock --systohc --utc");
 
 	QVBoxLayout *tmpvb = new QVBoxLayout( this );
 	QScrollView *sv = new QScrollView( this );
 	tmpvb->addWidget( sv, 0, 0 );
 	sv->setResizePolicy( QScrollView::AutoOneFit );
 	sv->setFrameStyle( QFrame::NoFrame );
 	QWidget *container = new QWidget( sv->viewport() );
 	sv->addChild( container );
 
 	QGridLayout *layout = new QGridLayout( container );
 	layout->setMargin( 2 );
 	layout->setSpacing( 4 );
 
 	// Hours
 	layout->addMultiCellWidget( new QLabel( tr( "Hour" ), container ), 1, 1, 0, 1 );
 	sbHour = new QSpinBox( container );
 	sbHour->setWrapping( TRUE );
 	layout->addMultiCellWidget( sbHour, 2, 2, 0, 1 );
 
 	// Minutes
 	layout->addMultiCellWidget( new QLabel( tr( "Minute" ), container ), 1, 1, 2, 3 );
 	sbMin = new QSpinBox( container );
 	sbMin->setWrapping( TRUE );
 	sbMin->setMinValue( 0 );
 	sbMin->setMaxValue( 59 );
 	layout->addMultiCellWidget( sbMin, 2, 2, 2, 3 );
 
 	// AM/PM
 	cbAmpm = new QComboBox( container );
 	cbAmpm->insertItem( tr( "AM" ), ValueAM );
 	cbAmpm->insertItem( tr( "PM" ), ValuePM );
 	layout->addMultiCellWidget( cbAmpm, 2, 2, 4, 5 );
 
@@ -232,78 +234,85 @@ void TimeTabWidget::slotUse12HourTime( int i )
 
 	int show_hour = sbHour->value();
 
 	if ( use12HourTime )
 	{
 		sbHour->setMinValue( 1 );
 		sbHour->setMaxValue( 12 );
 
 		if ( show_hour >= 12 )
 		{
 			show_hour -= 12;
 			cbAmpm->setCurrentItem( ValuePM );
 		}
 		else
 		{
 			cbAmpm->setCurrentItem( ValueAM );
 		}
 		if ( show_hour == 0 )
 			show_hour = 12;
 	}
 	else
 	{
 		sbHour->setMinValue( 0 );
 		sbHour->setMaxValue( 23 );
 
 		if ( cbAmpm->currentItem() == ValuePM )
 		{
 			show_hour += 12;
 			if ( show_hour == 24 )
 				show_hour = 0;
 		}
 	}
 
 	sbHour->setValue( show_hour );
 }
 
 void TimeTabWidget::slotDateFormatChanged( const DateFormat &df )
 {
 	btnDate->setDateFormat( df );
 }
 
 void TimeTabWidget::slotWeekStartChanged( int monday )
 {
 	btnDate->setWeekStartsMonday( monday );
 }
 
 void TimeTabWidget::slotTZChanged( const QString &newtz )
 {
-	// If controls have a valid date & time, update systemtime
-	int hour = sbHour->value();
-	if ( use12HourTime && cbAmpm->currentItem() == ValuePM )
-		hour += 12;
-	QDateTime dt( btnDate->date(), QTime ( hour, sbMin->value(), QTime::currentTime().second() ) );
-	setSystemTime( dt );
-	QCopEnvelope setTimeZone( "QPE/System", "timeChange(QString)" );
-	setTimeZone << newtz;
-
-	// Set system timezone
-	QString currtz = getenv( "TZ" );
-	setenv( "TZ", newtz, 1 );
-
-	// Get new date/time
-	hour = sbHour->value();
-	if ( use12HourTime && cbAmpm->currentItem() == ValuePM )
-		hour += 12;
-	dt = QDateTime::currentDateTime();
-
-	// Reset system timezone
-	if ( !currtz.isNull() )
-	{
-		setenv( "TZ", currtz, 1 );
+	// Check timezone has a valid file in /usr/share/zoneinfo
+	if(!QFile::exists("/usr/share/zoneinfo/" + newtz)) {
+		QMessageBox::warning(this, tr("Time zone file missing"), 
+				(tr("There is no time zone file for the\nselected time zone (%1).\nYou will need to install it before the\nsystem time zone can be set correctly.")).arg(newtz));
 	}
+	else {
+		// If controls have a valid date & time, update systemtime
+		int hour = sbHour->value();
+		if ( use12HourTime && cbAmpm->currentItem() == ValuePM )
+			hour += 12;
+		QDateTime dt( btnDate->date(), QTime ( hour, sbMin->value(), QTime::currentTime().second() ) );
+		setSystemTime( dt );
+		QCopEnvelope setTimeZone( "QPE/System", "timeChange(QString)" );
+		setTimeZone << newtz;
 
-	// Set controls to new time
-	setDateTime( dt );
+		// Set system timezone
+		QString currtz = getenv( "TZ" );
+		setenv( "TZ", newtz, 1 );
 
-	emit tzChanged( newtz );
+		// Get new date/time
+		hour = sbHour->value();
+		if ( use12HourTime && cbAmpm->currentItem() == ValuePM )
+			hour += 12;
+		dt = QDateTime::currentDateTime();
+
+		// Reset system timezone
+		if ( !currtz.isNull() )
+		{
+			setenv( "TZ", currtz, 1 );
+		}
+
+		// Set controls to new time
+		setDateTime( dt );
+
+		emit tzChanged( newtz );
+	}
 }