MenuList -> List

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/python/Components/Sources/List.py b/lib/python/Components/Sources/List.py
new file mode 100644
index 00000000..6d083f05
--- /dev/null
+++ b/lib/python/Components/Sources/List.py
@@ -0,0 +1,72 @@
+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"