lib/python/Components/Converter/StringList.py

   1 from Converter import Converter
   2 from enigma import eListboxPythonStringContent
   3 from Components.Element import cached
   4
   5 class StringList(Converter):
   6         """Turns a simple python list into a list which can be used in a listbox."""
   7         def __init__(self, type):
   8                 Converter.__init__(self, type)
   9                 self.content = None
  10
  11         def changed(self, what):
  12                 if not self.content:
  13                         self.content = eListboxPythonStringContent()
  14
  15                 if self.source:
  16                         self.content.setList(self.source.list)
  17                 self.downstream_elements.changed(what)
  18
  19         def selectionChanged(self, index):
  20                 self.source.selectionChanged(index)
  21
  22         def setIndex(self, index):
  23                 # update all non-master targets
  24                 for x in self.downstream_elements:
  25                         if x is not self.master:
  26                                 x.index = index
  27
  28         def getIndex(self, index):
  29                 return None
  30
  31         index = property(getIndex, setIndex)
  32
  33         @cached
  34         def getCurrent(self):
  35                 if self.source is None or self.index is None or self.index >= len(self.source.list):
  36                         return None
  37                 return self.source.list[self.index]
  38
  39         current = property(getCurrent)
  40
  41         # pass through: getIndex / setIndex to master
  42         @cached
  43         def getIndex(self):
  44                 if self.master is None:
  45                         return None
  46                 return self.master.index
  47
  48         def setIndex(self, index):
  49                 if self.master is not None:
  50                         self.master.index = index
  51
  52         index = property(getIndex, setIndex)
  53
  54         def entry_changed(self, index):
  55                 self.downstream_elements.entry_changed(index)