--- /dev/null
+from Source import Source
+from Tools.Event import Event
+from Components.Element import cached
+
+class List(Source, object):
+ """The datasource of a listbox. Currently, the format depends on the used converter. So
+if you put a simple string list in here, you need to use a StringList converter, if you are
+using a "multi content list styled"-list, you need to use the StaticMultiList converter, and
+setup the "fonts".
+
+This has been done so another converter could convert the list to a different format, for example
+to generate HTML."""
+ def __init__(self, list = [ ], enableWrapAround = False, item_height = 25, fonts = [ ]):
+ Source.__init__(self)
+ self.__list = list
+ self.onSelectionChanged = [ ]
+ self.item_height = item_height
+ self.fonts = fonts
+ self.disable_callbacks = False
+
+ def setList(self, list):
+ self.__list = list
+ self.changed((self.CHANGED_ALL,))
+
+ list = property(lambda self: self.__list, setList)
+
+ def entry_changed(self, index):
+ if not self.disable_callbacks:
+ self.downstream_elements.entry_changed(self, index)
+
+ def selectionChanged(self, index):
+ if self.disable_callbacks:
+ return
+
+ for x in self.onSelectionChanged:
+ x()
+
+ @cached
+ def getCurrent(self):
+ return self.master is not None and self.master.current
+
+ current = property(getCurrent)
+
+ def setIndex(self, index):
+ if self.master is not None:
+ self.master.index = index
+
+ @cached
+ def getIndex(self):
+ if self.master is not None:
+ return self.master.index
+ else:
+ return -1
+
+ setCurrentIndex = setIndex
+
+ index = property(getIndex, setIndex)
+
+ def updateList(self, list):
+ """Changes the list without changing the selection or emitting changed Events"""
+ assert len(list) == len(self.__list)
+ print "get old index"
+ old_index = self.index
+ print "disable callback"
+ self.disable_callbacks = True
+ print "set list"
+ self.list = list
+ print "set index"
+ self.index = old_index
+ print "reenable callbacks"
+ self.disable_callbacks = False
+ print "done"