workspace/plasma/scriptengines/python/examples/dataengines/pytime/contents/code/main.py

   1 #
   2 # Copyright 2007 Aaron Seigo <aseigo@kde.org>
   3 # Copyright 2008 Alex Merry <alex.merry@kdemail.net>
   4 # Copyright 2008 Simon Edwards <simon@simonzone.com> (Translated to Python)
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU Library General Public License as
   8 # published by the Free Software Foundation; either version 2, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details
  15 #
  16 # You should have received a copy of the GNU Library General Public
  17 # License along with this program; if not, write to the
  18 # Free Software Foundation, Inc.,
  19 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20 #
  21
  22 from PyQt4.QtCore import *
  23 from PyKDE4.kdecore import *
  24 from PyKDE4 import plasmascript
  25
  26 class PyTimeEngine(plasmascript.DataEngine):
  27     def __init__(self,parent,args=None):
  28         plasmascript.DataEngine.__init__(self,parent)
  29
  30     def init(self):
  31         self.setMinimumPollingInterval(333)
  32
  33     def sources(self):
  34         sources = ["Local"]
  35         sources.extend(KSystemTimeZones.zones().keys())
  36         return sources
  37
  38     def sourceRequestEvent(self, name):
  39         return self.updateSourceEvent(name)
  40
  41     def updateSourceEvent(self, tz):
  42         localName = "Local"
  43         if tz == localName:
  44             self.setData(localName, "Time", QVariant(QTime.currentTime()))
  45             self.setData(localName, "Date", QVariant(QDate.currentDate()))
  46             # this is relatively cheap - KSTZ::local() is cached
  47             timezone = KSystemTimeZones.local().name()
  48         else:
  49             newTz = KSystemTimeZones.zone(tz)
  50             if not newTz.isValid():
  51                 return False
  52             dt = KDateTime.currentDateTime(KDateTime.Spec(newTz))
  53             self.setData(tz, "Time", QVariant(dt.time()))
  54             self.setData(tz, "Date", QVariant(dt.date()))
  55             timezone = tz
  56
  57         trTimezone = timezone
  58         self.setData(tz, "Timezone", QVariant(trTimezone));
  59         tzParts = str(trTimezone).split("/")
  60         if len(tzParts)>=2:
  61             self.setData(tz, "Timezone Continent", QVariant(tzParts[0]))
  62             self.setData(tz, "Timezone City", QVariant(tzParts[1]))
  63
  64         return True
  65
  66 def CreateDataEngine(parent):
  67     return PyTimeEngine(parent)