yea, now screensaver almost works... or sth like that. lets convert the helper funcs

client-barcode/display.py

@@ -8,7 +8,7 @@ class Display:
 		self.portlock = allocate_lock()
 		self.portname=portname
 		self.open_port()
-		self.brightness=0
+		self.brightness=5
 		self.screensaver = Screensaver(self)
 		self.screensaver.start()
 
@@ -56,9 +56,12 @@ class Display:
 
 
 	def cmd_brightness(self,level):
+		if (self.brightness==level):
+			return
+		print("setting brightness to %i \n" %level)
 		if (level==0): #turn off:
 			self.cmd_display_on(False)	
-                        self.brightness = level
+                        self.brightness = 0
                         return
 		else:  
 			if (self.brightness==0): #turn on, then set wanted brightness:
@@ -71,18 +74,26 @@ class Display:
 		# where the last value defines the blink rate, 
 		# with 0=always on, 255=always off
 		if (on):
+			if (not self.brightness==0):
+				return
+			print("setting display to on: %s \n" % str(on))
 			self.cmd_blink(0)
+			self.brightness=5
 		else:
+			if (self.brightness==0):
+				return
+			print("setting display to on: %s \n" % str(on))
 			self.cmd_blink(255)
+			self.brightness=0
 
 	def cmd_curmode_overwrite(self):
-		cmd_curmode(1)			
+		self.cmd_curmode(1)			
 
 	def cmd_curmode_vscroll(self):
-		cmd_curmode(2)			
+		self.cmd_curmode(2)			
 
 	def cmd_curmode_hscroll(self):
-		cmd_curmode(3)			
+		self.cmd_curmode(3)			
 
 	def cmd_curmode(self,val=2):
 		self.cmd("\x1f%c" % chr(val))
@@ -140,9 +151,9 @@ class Screensaver (threading.Thread):
 		self.display=display
 		self.runme=True
 		self.idlecounter=0
-		self.timeout_dim=30
+		self.timeout_dim=10
-		self.timeout_message=60
+		self.timeout_message=20
-		self.timeout_off=120
+		self.timeout_off=32
 		self.mutex = allocate_lock()
 	        threading.Thread.__init__(self)
 
@@ -162,26 +173,30 @@ class Screensaver (threading.Thread):
 	def idle_reset(self):
 		self.mutex.acquire()
 		self.idlecounter=0
+		self.display.cmd_brightness(5)
 		self.mutex.release()
 
 	def _main_loop(self):
 		if (self.idlecounter < self.timeout_off):
 			self.idlecounter+=1
-
 		if (self.idlecounter>=self.timeout_dim and self.idlecounter <= (self.timeout_dim+7)):
 			x = (8-( self.idlecounter - self.timeout_dim))/2
-			self.display.mutax_get()
+			self.display.mutex_get()
 			self.display.cmd_brightness(1+x)
-			self.display.mutax_release()
+			self.display.mutex_release()
 			return
 
 		if (self.idlecounter==self.timeout_message):
+			print("WHAAAAGHAA")
+			self.display.mutex_get()
+			self.display.cmd_time_set()
+			self.display.mutex_release()
 			return
 
 		if (self.idlecounter==self.timeout_off):
-			self.display.mutax_get()
+			self.display.mutex_get()
-                        display.cmd_display_on(False)
+                        self.display.cmd_display_on(False)
-			self.display.mutax_release()
+			self.display.mutex_release()
 			return
 		
 	def __del__(self):

client-barcode/freitagskasse.py

@@ -110,8 +110,8 @@ def display_thread(x):
 		offset_line1 = display_handle_scroll(1,scroll_line1,offset_line1)
 		offset_line2 = display_handle_scroll(2,scroll_line2,offset_line2)
 
-		if (screensaver <= SCREENSAVER_OFF):
+	#	if (screensaver <= SCREENSAVER_OFF):
-			screensaver=screensaver+1
+#			screensaver=screensaver+1
 
 
 		if (screensaver == SCREENSAVER_TIMEOUT):
@@ -131,7 +131,7 @@ def display_thread(x):
 
 def send_display(s):
 	global myDisplay
-	myDisplay.write(s)
+#	myDisplay.write(s,False)
 
 #Front-End Funtion to display a Screen
 # with heading
@@ -174,7 +174,7 @@ def print_display(s):
 	scroll_line1=None
 	scroll_line2=None
 	display_cmd_dim(5)
-	myDisplay.write(s)
+#	myDisplay.write(s,False)
 	lock.release()
 
 def clear():
@@ -550,6 +550,8 @@ def main():
 
 	myDisplay = Display("/dev/ttyUSB0")
 	myDisplay.cmd_reset()
+	myDisplay.write("Hello world!\n")
+	time.sleep(10)
 	myDisplay.cmd_cursor_show(False)
 	start_new_thread(display_thread,(1,))