Added StringIdler

Factored out into own file MessageKeeper

diff --git a/sql-edition/servers/Idler.py b/sql-edition/servers/Idler.py
index 5ffea0b..80963a8 100755 (executable)
--- a/sql-edition/servers/Idler.py
+++ b/sql-edition/servers/Idler.py
@@ -2,6 +2,7 @@
 
 import string
 from random import random
 
 import string
 from random import random

+from MessageKeeper import MessageKeeper

 
 orderings = None
 
 
 orderings = None
 


@@ -179,3 +180,16 @@ class GrayIdler(Idler):
                self.grayCode = 0
                if self.reorder:
                        self.reorder = int(random()*40319)+1
                self.grayCode = 0
                if self.reorder:
                        self.reorder = int(random()*40319)+1

+
+
+class StringIdler(Idler):
+       def __init__(self, v, text="Hello Cruel World!"):
+               self.v = v
+               self.mk = MessageKeeper(v)
+               self.text = text
+
+       def next(self):
+               self.mk.update_display()
+
+       def reset(self):
+               self.mk.set_message(self.text, True, None)

diff --git a/sql-edition/servers/MessageKeeper.py b/sql-edition/servers/MessageKeeper.py
new file mode 100755 (executable)
index 0000000..e9dee51
--- /dev/null
+++ b/sql-edition/servers/MessageKeeper.py
@@ -0,0 +1,52 @@
+#!/usr/bin/python
+# vim:ts=4
+
+import sys, os, string, re, pwd, signal
+from HorizScroll import HorizScroll
+from random import random, seed
+
+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):
+               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 = 0, wraparound = True)
+                               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
+

diff --git a/sql-edition/servers/VendServer.py b/sql-edition/servers/VendServer.py
index 45288f1..71097bb 100755 (executable)
--- a/sql-edition/servers/VendServer.py
+++ b/sql-edition/servers/VendServer.py
@@ -12,12 +12,22 @@ from time import time, sleep
 from popen2 import popen2
 from LATClient import LATClient, LATClientException
 from VendingMachine import VendingMachine, VendingException
 from popen2 import popen2
 from LATClient import LATClient, LATClientException
 from VendingMachine import VendingMachine, VendingException

+from MessageKeeper import MessageKeeper

 from HorizScroll import HorizScroll
 from random import random, seed
 from HorizScroll import HorizScroll
 from random import random, seed

-from Idler import TrainIdler,GrayIdler
+from Idler import TrainIdler,GrayIdler,StringIdler

 import socket
 from posix import geteuid
 
 import socket
 from posix import geteuid
 

+CREDITS="""
+This vending machine software brought to you by:
+Bernard Blackham
+Mark Tearle
+Nick Bannon
+Cameron Patrick
+and a collective of hungry alpacas.
+"""
+

 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
 


@@ -164,50 +174,7 @@ def center(str):
        LEN = 10
        return ' '*((LEN-len(str))/2)+str
 
        LEN = 10
        return ' '*((LEN-len(str))/2)+str
 

-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):
-               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 = 0, wraparound = True)
-                               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

 
 idlers = []
 idler = None
 
 idlers = []
 idler = None


@@ -215,6 +182,8 @@ def setup_idlers(v):
        global idlers, idler
        idlers = [
                TrainIdler(v),
        global idlers, idler
        idlers = [
                TrainIdler(v),

+               StringIdler(v),
+               StringIdler(v, text=CREDITS),

                GrayIdler(v),
                GrayIdler(v,one="*",zero="-"),
                GrayIdler(v,one="/",zero="\\"),
                GrayIdler(v),
                GrayIdler(v,one="*",zero="-"),
                GrayIdler(v,one="/",zero="\\"),