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
@@ -29,48 +29,50 @@
 */
 
 #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 );
 
@@ -256,54 +258,61 @@ void TimeTabWidget::slotUse12HourTime( int i )
 
 		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 );
+	}
 }