workspace/plasma/dataengines/time/timeengine.cpp

   1 /*
   2  *   Copyright 2007 Aaron Seigo <aseigo@kde.org>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library General Public License as
   6  *   published by the Free Software Foundation; either version 2 or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details
  13  *
  14  *   You should have received a copy of the GNU Library General Public
  15  *   License along with this program; if not, write to the
  16  *   Free Software Foundation, Inc.,
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "timeengine.h"
  21
  22 #include <QDate>
  23 #include <QStringList>
  24 #include <QTime>
  25 #include <QTimer>
  26
  27 #include <KDebug>
  28 #include <KLocale>
  29 #include <KSystemTimeZones>
  30 #include <KDateTime>
  31
  32 #include "plasma/datacontainer.h"
  33
  34 TimeEngine::TimeEngine(QObject* parent, const QVariantList& args)
  35     : Plasma::DataEngine(parent, args)
  36 {
  37     Q_UNUSED(args)
  38     setMinimumUpdateInterval(333);
  39
  40     // To have translated timezone names
  41     // (effectively a noop if the catalog is already present).
  42     KGlobal::locale()->insertCatalog("timezones4");
  43 }
  44
  45 TimeEngine::~TimeEngine()
  46 {
  47 }
  48
  49 bool TimeEngine::sourceRequested(const QString &name)
  50 {
  51     //kDebug() << "TimeEngine::sourceRequested " << name;
  52
  53     return updateSource(name);
  54 }
  55
  56 bool TimeEngine::updateSource(const QString &tz)
  57 {
  58     //kDebug() << "TimeEngine::updateTime()";
  59
  60     QString timezone;
  61
  62     static const QString localName = I18N_NOOP("Local");
  63     if (tz == localName) {
  64         setData(localName, I18N_NOOP("Time"), QTime::currentTime());
  65         setData(localName, I18N_NOOP("Date"), QDate::currentDate());
  66         // this is relatively cheap - KSTZ::local() is cached
  67         timezone = KSystemTimeZones::local().name();
  68     } else {
  69         KTimeZone newTz = KSystemTimeZones::zone(tz);
  70         if (!newTz.isValid()) {
  71             return false;
  72         }
  73
  74         KDateTime dt = KDateTime::currentDateTime(newTz);
  75         setData(tz, I18N_NOOP("Time"), dt.time());
  76         setData(tz, I18N_NOOP("Date"), dt.date());
  77         timezone = tz;
  78     }
  79
  80     QString trTimezone = i18n(timezone.toUtf8());
  81     setData(tz, I18N_NOOP("Timezone"), trTimezone);
  82     QStringList tzParts = trTimezone.split("/");
  83
  84     setData(tz, I18N_NOOP("Timezone Continent"), tzParts.value(0));
  85     setData(tz, I18N_NOOP("Timezone City"), tzParts.value(1));
  86
  87     return true;
  88 }
  89
  90 #include "timeengine.moc"