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tdebase/kcontrol/clock/tzone.cpp

201 lines
5.1 KiB

/*
* tzone.cpp
*
* Copyright (C) 1998 Luca Montecchiani <m.luca@usa.net>
*
* 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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <config.h>
#include <qlabel.h>
#include <qfile.h>
#include <kdebug.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kdialog.h>
#include <kio/netaccess.h>
//#include "xpm/world.xpm"
#include "tzone.h"
#include "tzone.moc"
#if defined(USE_SOLARIS)
#include <ktempfile.h>
#include <kstandarddirs.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#endif
Tzone::Tzone(QWidget * parent, const char *name)
: QVGroupBox(parent, name)
{
setTitle(i18n("To change the timezone, select your area from the list below"));
tzonelist = new KTimezoneWidget(this, "ComboBox_1", &m_zoneDb);
connect( tzonelist, SIGNAL(selectionChanged()), SLOT(handleZoneChange()) );
m_local = new QLabel(this);
load();
tzonelist->setEnabled(getuid() == 0);
}
void Tzone::load()
{
currentZone();
// read the currently set time zone
tzonelist->setSelected(m_zoneDb.local()->name(), true);
}
void Tzone::currentZone()
{
QString localZone(i18n("Current local timezone: %1 (%2)"));
QCString result(100);
time_t now = time(0);
tzset();
strftime(result.data(), result.size(), "%Z", localtime(&now));
m_local->setText(localZone.arg(KTimezoneWidget::displayName(m_zoneDb.local())).arg(result));
}
// FIXME: Does the logic in this routine actually work correctly? For example,
// on non-Solaris systems which do not use /etc/timezone?
void Tzone::save()
{
QStringList selectedZones(tzonelist->selection());
if (selectedZones.count() > 0)
{
// Find untranslated selected zone
QString selectedzone(selectedZones[0]);
#if defined(USE_SOLARIS) // MARCO
KTempFile tf( locateLocal( "tmp", "kde-tzone" ) );
tf.setAutoDelete( true );
QTextStream *ts = tf.textStream();
# ifndef INITFILE
# define INITFILE "/etc/default/init"
# endif
QFile fTimezoneFile(INITFILE);
bool updatedFile = false;
if (tf.status() == 0 && fTimezoneFile.open(IO_ReadOnly))
{
bool found = false;
QTextStream is(&fTimezoneFile);
for (QString line = is.readLine(); !line.isNull();
line = is.readLine())
{
if (line.find("TZ=") == 0)
{
*ts << "TZ=" << selectedzone << endl;
found = true;
}
else
{
*ts << line << endl;
}
}
if (!found)
{
*ts << "TZ=" << selectedzone << endl;
}
updatedFile = true;
fTimezoneFile.close();
}
if (updatedFile)
{
ts->device()->reset();
fTimezoneFile.remove();
if (fTimezoneFile.open(IO_WriteOnly | IO_Truncate))
{
QTextStream os(&fTimezoneFile);
for (QString line = ts->readLine(); !line.isNull();
line = ts->readLine())
{
os << line << endl;
}
fchmod(fTimezoneFile.handle(),
S_IXUSR | S_IRUSR | S_IRGRP | S_IXGRP |
S_IROTH | S_IXOTH);
fTimezoneFile.close();
}
}
QString val = selectedzone;
#else
QFile fTimezoneFile("/etc/timezone");
if (fTimezoneFile.open(IO_WriteOnly | IO_Truncate) )
{
QTextStream t(&fTimezoneFile);
t << selectedzone;
fTimezoneFile.close();
}
QString tz = "/usr/share/zoneinfo/" + selectedzone;
kdDebug() << "Set time zone " << tz << endl;
if (!QFile::remove("/etc/localtime"))
{
//After the KDE 3.2 release, need to add an error message
}
else
if (!KIO::NetAccess::file_copy(KURL(tz),KURL("/etc/localtime")))
KMessageBox::error( 0, i18n("Error setting new timezone."),
i18n("Timezone Error"));
QString val = ":" + tz;
#endif // !USE_SOLARIS
setenv("TZ", val.ascii(), 1);
tzset();
} else {
#if !defined(USE_SOLARIS) // Do not update the System!
unlink( "/etc/timezone" );
unlink( "/etc/localtime" );
setenv("TZ", "", 1);
tzset();
#endif // !USE SOLARIS
}
currentZone();
}