X-Git-Url: https://git.ucc.asn.au/?p=uccvend-vendserver.git;a=blobdiff_plain;f=VendServer%2FMessageKeeper.py;fp=VendServer%2FMessageKeeper.py;h=60d2b9e2b331bee93bffe25f0edecedf3ddddb97;hp=0000000000000000000000000000000000000000;hb=6c130dc942392ccc8b7ffa0ec2ede5f9327f99e6;hpb=e423f11f190d685156cb557319b169d2b79b752f;ds=sidebyside

diff --git a/VendServer/MessageKeeper.py b/VendServer/MessageKeeper.py
new file mode 100755
index 0000000..60d2b9e
--- /dev/null
+++ b/VendServer/MessageKeeper.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+# vim:ts=4
+
+import sys, os, string, re, pwd, signal
+from HorizScroll import HorizScroll
+from random import random, seed
+from time import time, sleep
+
+class MessageKeeper:
+	def __init__(self, vendie):
+		# Each element of scrolling_message should be a 3-tuple of
+		# ('message', True/False if it is to be repeated, time to display)
+		self.scrolling_message = []
+		self.v = vendie
+		self.next_update = None
+
+	def set_message(self, string):
+		self.scrolling_message = [(string, False, None)]
+		self.update_display(True)
+
+	def set_messages(self, strings):
+		self.scrolling_message = strings
+		self.update_display(True)
+
+	def update_display(self, forced = False, padding = 0):
+		if not forced and self.next_update != None and time() < self.next_update:
+			return
+		if len(self.scrolling_message) > 0:
+			if len(self.scrolling_message[0][0]) > 10:
+				(m, r, t) = self.scrolling_message[0]
+				a = []
+				exp = HorizScroll(m).expand(padding, wraparound = r)
+				if t == None:
+					t = 0.1
+				else:
+					t = t / len(exp)
+				for x in exp:
+					a.append((x, r, t))
+				del self.scrolling_message[0]
+				self.scrolling_message = a + self.scrolling_message
+			newmsg = self.scrolling_message[0]
+			if newmsg[2] != None:
+				self.next_update = time() + newmsg[2]
+			else:
+				self.next_update = None
+			self.v.display(self.scrolling_message[0][0])
+			if self.scrolling_message[0][1]:
+				self.scrolling_message.append(self.scrolling_message[0])
+			del self.scrolling_message[0]
+
+	def done(self):
+		return len(self.scrolling_message) == 0
+