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                 # update all non-master targets
  22                 print "changed selection in listbox!"
  23                 for x in self.downstream_elements:
  24                         print "downstream element", x
  25                         if x is not self.master:
  26                                 print "is not master, so update to index", index
  27                                 x.index = index
  28
  29         @cached
  30         def getCurrent(self):
  31                 if self.source is None or self.index is None or self.index >= len(self.source.list):
  32                         return None
  33                 return self.source.list[self.index]
  34
  35         current = property(getCurrent)
  36
  37         # pass through: getIndex / setIndex to master
  38         @cached
  39         def getIndex(self):
  40                 if self.master is None:
  41                         return None
  42                 return self.master.index
  43
  44         def setIndex(self, index):
  45                 if self.master is not None:
  46                         self.master.index = index
  47
  48         index = property(getIndex, setIndex)
  49
  50         def entry_changed(self, index):
  51                 self.downstream_elements.entry_changed(index)