the first time information is somehow displayed again

client-barcode/freitagskasse.py

@@ -56,45 +56,6 @@ SCREENSAVER_OFF     = 2* 10*60
 
 lock = allocate_lock()
 
-#Helper-Function, scrolls text in a specific line.
-def display_scroll_text(line,text):
-	global scroll_line1,scroll_line2
-	global offset_line1,offset_line2
-	global lock
-	lock.acquire()
-	if (line==1): #clear the line on invocation:
-		send_display("\x1f\x24\x01%c\x18" % chr(line) )
-		scroll_line1 = text
-		offset_line1=0
-	if (line==2): #clear the line on invocation:
-		send_display("\x1f\x24\x01%c\x18" % chr(line) )
-		scroll_line2 = text
-		offset_line2=0
-	lock.release()
-	
-
-def display_handle_scroll(line,text,offset):
-	if (text):
-		l = len(text)
-		if (l<21):
-			if (offset == 0):
-				send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
-				offset=1
-		else:
-			send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
-			missing_chars=20+offset-l
-			if (missing_chars>0):
-				send_display(text[:missing_chars])
-			offset=((offset+1)%l)
-	else:
-		offset=0	#reset offset
-	return offset
-
-
-def display_cmd_dim(x):
-	return
-
-
 def send_display(s):
 	global myDisplay
 #	myDisplay.write(s,False)
@@ -102,46 +63,12 @@ def send_display(s):
 #Front-End Funtion to display a Screen
 # with heading
 def display_screen(title,message):
-	global scroll_line1,scroll_line2
-	global offset_line1,offset_line2
-	global screensaver
-
-	offset_line1=0
-	offset_line2=0
-	screensaver=0
-	display_cmd_dim(5)
-
-	if (len(title)<21):
-		scroll_line1=None
-		send_display("\x1f\x24\x01%c\x18%s" % (chr(1),'\xdb'*20) )
-		if (len(title)<20):
-			pos=1+(20-len(title))/2
-		else:
-			pos=1
-		send_display("\x1f\x24%c%c%s" % (chr(pos),chr(1),title) )
-	else:
-		display_scroll_text(1,title)
-
-	display_scroll_text(2,message)
+	myDisplay.display_screen(title,message)
 
 
 #Front-End function to send data to the display.
 def print_display(s):
-	global scroll_line1,scroll_line2
-	global offset_line1,offset_line2
-	global screensaver
-	global myDisplay
-	global lock
-
-	lock.acquire()
-	screensaver=0
-	offset_line1=0
-	offset_line2=0
-	scroll_line1=None
-	scroll_line2=None
-	display_cmd_dim(5)
-#	myDisplay.write(s,False)
-	lock.release()
+	myDisplay.write(s,False)
 
 def clear():
 	os.system('clear')
@@ -517,10 +444,8 @@ def main():
 	myDisplay = Display("/dev/ttyUSB0")
 	myDisplay.start()
 	myDisplay.cmd_reset()
-	myDisplay.display_screen("Nachricht","Hallo Welt! Dies ist eine sehr lange NAchricht!")
-	time.sleep(100)
+	time.sleep(2)
 	myDisplay.cmd_cursor_show(False)
-	start_new_thread(display_thread,(1,))
 
 	display_screen("HINWEIS","Herzlich willkommen bei der Freitagsrunde! *** ")
 	while True: