1 from Source import Source
2 from Components.Element import cached
4 class List(Source, object):
5 """The datasource of a listbox. Currently, the format depends on the used converter. So
6 if you put a simple string list in here, you need to use a StringList converter, if you are
7 using a "multi content list styled"-list, you need to use the StaticMultiList converter, and
10 This has been done so another converter could convert the list to a different format, for example
12 def __init__(self, list = [ ], enableWrapAround = False, item_height = 25, fonts = [ ]):
15 self.onSelectionChanged = [ ]
16 self.item_height = item_height
18 self.disable_callbacks = False
20 def setList(self, list):
22 self.changed((self.CHANGED_ALL,))
24 list = property(lambda self: self.__list, setList)
26 def entry_changed(self, index):
27 if not self.disable_callbacks:
28 self.downstream_elements.entry_changed(self, index)
30 def selectionChanged(self, index):
31 if self.disable_callbacks:
34 for x in self.onSelectionChanged:
39 return self.master is not None and self.master.current
41 current = property(getCurrent)
43 def setIndex(self, index):
44 if self.master is not None:
45 self.master.index = index
49 if self.master is not None:
50 return self.master.index
54 setCurrentIndex = setIndex
56 index = property(getIndex, setIndex)
58 def updateList(self, list):
59 """Changes the list without changing the selection or emitting changed Events"""
60 assert len(list) == len(self.__list)
62 old_index = self.index
63 print "disable callback"
64 self.disable_callbacks = True
68 self.index = old_index
69 print "reenable callbacks"
70 self.disable_callbacks = False