X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/92e521a30c214ac2e65c6fb68401e90196a6c88b..cd3cd96e2ff4c6e6a9a38393e4d93167d30f74ea:/lib/python/Components/Sources/List.py

diff --git a/lib/python/Components/Sources/List.py b/lib/python/Components/Sources/List.py
index e141da59..23b53957 100644
--- a/lib/python/Components/Sources/List.py
+++ b/lib/python/Components/Sources/List.py
@@ -1,5 +1,4 @@
 from Source import Source
-from Tools.Event import Event
 from Components.Element import cached
 
 class List(Source, object):
@@ -17,6 +16,8 @@ to generate HTML."""
 		self.item_height = item_height
 		self.fonts = fonts
 		self.disable_callbacks = False
+		self.enableWrapAround = enableWrapAround
+		self.__style = "default" # style might be an optional string which can be used to define different visualisations in the skin
 
 	def setList(self, list):
 		self.__list = list
@@ -28,6 +29,13 @@ to generate HTML."""
 		if not self.disable_callbacks:
 			self.downstream_elements.entry_changed(self, index)
 
+	def modifyEntry(self, index, data):
+		self.__list[index] = data
+		self.entry_changed(index)
+
+	def count(self):
+		return len(self.__list)
+
 	def selectionChanged(self, index):
 		if self.disable_callbacks:
 			return
@@ -44,29 +52,50 @@ to generate HTML."""
 	def setIndex(self, index):
 		if self.master is not None:
 			self.master.index = index
+			self.selectionChanged(index)
 
 	@cached
 	def getIndex(self):
 		if self.master is not None:
 			return self.master.index
 		else:
-			return -1
+			return None
 
 	setCurrentIndex = setIndex
 
 	index = property(getIndex, setIndex)
+	
+	def selectNext(self):
+		if self.getIndex() + 1 >= self.count():
+			if self.enableWrapAround:
+				self.index = 0
+		else:
+			self.index += 1
+		self.setIndex(self.index)
+
+	def selectPrevious(self):
+		if self.getIndex() - 1 < 0:
+			if self.enableWrapAround:
+				self.index = self.count() - 1
+		else:
+			self.index -= 1
+		self.setIndex(self.index)
+
+	@cached
+	def getStyle(self):
+		return self.__style
+
+	def setStyle(self, style):
+		self.__style = style
+		self.changed((self.CHANGED_SPECIFIC, "style"))
+
+	style = property(getStyle, setStyle)
 
 	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"