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Viewing changes to plasma/generic/scriptengines/python/pydataengine.py

  • Committer: Bazaar Package Importer
  • Author(s): Michał Zając
  • Date: 2011-07-09 08:31:15 UTC
  • Revision ID: james.westby@ubuntu.com-20110709083115-ohyxn6z93mily9fc
Tags: upstream-4.6.90
Import upstream version 4.6.90

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plasma/generic/scriptengines/python/pydataengine.py
 
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# -*- coding: utf-8 -*-
 
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#
 
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# Copyright 2008 Simon Edwards <simon@simonzone.com>
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU Library General Public License as
 
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# published by the Free Software Foundation; either version 2, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details
 
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#
 
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# You should have received a copy of the GNU Library General Public
 
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# License along with this program; if not, write to the
 
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# Free Software Foundation, Inc.,
 
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# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
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#
 
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from PyQt4.QtCore import *
 
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from PyQt4.QtGui import *
 
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from PyKDE4.plasma import Plasma
 
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import plasma_importer
 
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import os.path
 
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class PythonDataEngineScript(Plasma.DataEngineScript):
 
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    importer = None
 
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    def __init__(self, parent):
 
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        Plasma.DataEngineScript.__init__(self,parent)
 
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        if PythonDataEngineScript.importer is None:
 
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            PythonDataEngineScript.importer = plasma_importer.PlasmaImporter()
 
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        self.initialized = False
 
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    def init(self):
 
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        self.moduleName = str(self.dataEngine().pluginName())
 
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        self.pluginName = 'dataengine_' + self.moduleName.replace('-','_')
 
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        PythonDataEngineScript.importer.register_top_level(self.pluginName, str(self.dataEngine().package().path()))
 
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        # import the code at the file name reported by mainScript()
 
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        relpath = os.path.relpath(str(self.mainScript()),str(self.dataEngine().package().path()))
 
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        if relpath.startswith("contents/code/"):
 
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            relpath = relpath[14:]
 
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        if relpath.endswith(".py"):
 
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            relpath = relpath[:-3]
 
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        relpath = relpath.replace("/",".")
 
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        self.module = __import__(self.pluginName+'.'+relpath)
 
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        # The script may not necessarily be called "main"
 
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        # So we use __dict__ to look up the right name
 
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        basename = os.path.basename(str(self.mainScript()))
 
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        basename = os.path.splitext(basename)[0]
 
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        self.pydataengine = self.module.__dict__[basename].CreateDataEngine(None)
 
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        self.pydataengine.setDataEngine(self.dataEngine())
 
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        self.pydataengine.setDataEngineScript(self)
 
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        self.pydataengine.init()
 
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        self.initialized = True
 
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        return True
 
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    def __dtor__(self):
 
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        PythonDataEngineScript.importer.unregister_top_level(self.pluginName)
 
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        self.pydataengine = None
 
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    def sources(self):
 
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        return self.pydataengine.sources()
 
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    def serviceForSource(self,source):
 
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        return self.pydataengine.serviceForSource(source)
 
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    def sourceRequestEvent(self,name):
 
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        return self.pydataengine.sourceRequestEvent(name)
 
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    def updateSourceEvent(self,source):
 
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        return self.pydataengine.updateSourceEvent(source)
 
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def CreatePlugin(widget_parent, parent, component_data):
 
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    return PythonDataEngineScript(parent)