Merge remote-tracking branch 'origin/display-florian-backup' into display-threading
Conflicts: client-barcode/freitagskasse.py
This commit is contained in:
Florian Streibelt
commit
e7c73198f5
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@ -1,74 +1,291 @@
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import serial
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from thread import start_new_thread, allocate_lock
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import time
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import threading
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class Display:
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class Display(threading.Thread):
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def __init__(self,portname="/dev/ttyUSB0"):
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threading.Thread.__init__(self)
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self.serialport=None
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self.open_port(portname)
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self.runme=True
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self.idlemessage=None
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self.portlock = allocate_lock()
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self.portname=portname
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self.brightness=5
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self.scroll_line1 = None
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self.scroll_line2 = None
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self.offset_line1 = 0
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self.offset_line2 = 0
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self.screensaver = Screensaver(self)
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self.open_port()
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def __del__(self):
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if (not self.screensaver == None):
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self.screensaver = None
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if (not self.serialport == None):
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self.serialport.close()
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self.serialport=None
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def open_port(self,portname):
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self.serialport = serial.Serial(portname,9600,timeout=2,rtscts=True, dsrdtr=True)
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print ("Initializing display:\n %s\n" % self.serialport )
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def open_port(self):
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self.mutex_get()
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try:
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self.serialport = serial.Serial(self.portname,9600,timeout=2,rtscts=True, dsrdtr=True)
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#print ("Initializing display on port:\n %s\n" % self.serialport )
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self.cmd_reset()
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self.write("Hello world")
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self.mutex_release()
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except Exception as e:
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#print ("Exception opening serial port '%s' for display\n" % self.portname)
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#print ("Ignoring and trying to open it again later\n")
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#print (e)
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self.serialport = None
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self.mutex_release()
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pass
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#Helper-Function, scrolls text in a specific line.
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def display_scroll_text(self,line,text):
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if (line==1): #clear the line on invocation:
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self.cmd("\x1f\x24\x01%c\x18" % chr(line) )
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self.scroll_line1 = text
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self.offset_line1=0
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if (line==2): #clear the line on invocation:
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self.cmd("\x1f\x24\x01%c\x18" % chr(line) )
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self.scroll_line2 = text
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self.offset_line2=0
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def display_handle_scroll(self,line,text,offset):
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if (text):
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l = len(text)
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if (l<21):
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if (offset == 0):
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self.cmd("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
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offset=1
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else:
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self.cmd("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
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missing_chars=20+offset-l
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if (missing_chars>0):
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self.cmd(text[:missing_chars])
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offset=((offset+1)%l)
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else:
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offset=0 #reset offset
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return offset
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def run(self):
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#print "Starting Display thread"
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self.screensaver.start()
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while(self.runme):
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#print("display thread loop\n")
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self.mutex_get()
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#print("display got mutex and handles scroll\n")
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self.offset_line1 = self.display_handle_scroll(1,self.scroll_line1,self.offset_line1)
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self.offset_line2 = self.display_handle_scroll(2,self.scroll_line2,self.offset_line2)
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self.mutex_release()
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time.sleep(.5)
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print "Exiting Display thread"
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#Front-End Funtion to display a Screen
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# with heading
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def display_screen(self,title,message):
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self.mutex_get()
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self.offset_line1=0
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self.offset_line2=0
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self.screensaver.idle_reset();
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self.cmd_brightness(5)
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if (len(title)<21):
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self.scroll_line1=None
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self.cmd("\x1f\x24\x01%c\x18%s" % (chr(1),'\xdb'*20) )
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if (len(title)<20):
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pos=1+(20-len(title))/2
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else:
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pos=1
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self.cmd("\x1f\x24%c%c%s" % (chr(pos),chr(1),title) )
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else:
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self.display_scroll_text(1,title)
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self.display_scroll_text(2,message)
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self.mutex_release()
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def cmd_reset(self):
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#reset the display
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self.write("\x1b\x40")
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self.cmd("\x1b\x40")
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def cmd_cursor_show(self,on=True):
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#show or hide the cursor
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if (on):
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self.write("\x1f\x43\x01")
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self.cmd("\x1f\x43\x01")
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else:
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self.write("\x1f\x43\x00")
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self.cmd("\x1f\x43\x00")
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def cmd_blink(self,rate=127):
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self.write("\x1f\x45%c" % rate)
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self.cmd("\x1f\x45%c" % chr(rate))
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def cmd_brightness(self,level):
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if (self.brightness==level):
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return
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#print("setting brightness to %i \n" %level)
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if (level==0): #turn off:
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self.cmd_display_on(False)
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self.brightness = 0
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return
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else:
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if (self.brightness==0): #turn on, then set wanted brightness:
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self.cmd_display_on(True)
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self.brightness = level
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self.cmd("\x1F\x58%c" % chr(level-1) )
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def cmd_display_on(self,on=True):
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# blink-command:
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# where the last value defines the blink rate,
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# with 0=always on, 255=always off
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if (on):
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if (not self.brightness==0):
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return
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#print("setting display to on: %s \n" % str(on))
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self.cmd_blink(0)
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self.brightness=5
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else:
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if (self.brightness==0):
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return
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#print("setting display to on: %s \n" % str(on))
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self.cmd_blink(255)
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self.brightness=0
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def cmd_curmode_overwrite(self):
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cmd_curmode(1)
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self.cmd_curmode(1)
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def cmd_curmode_vscroll(self):
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cmd_curmode(2)
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self.cmd_curmode(2)
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def cmd_curmode_hscroll(self):
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cmd_curmode(3)
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self.cmd_curmode(3)
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def cmd_curmode(self,val=2):
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self.write("\x1f%c" % val)
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self.cmd("\x1f%c" % chr(val))
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def cmd_clear(self):
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self.write("\x0c")
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self.cmd("\x0c")
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def cmd_time(self):
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# activate timer display in lower right corner.
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# actual time has to be set via display_set_timer.
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self.write("\x1f\x55")
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self.cmd("\x1f\x55")
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def cmd_time_set(self,h,m):
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def cmd_time_set(self,h=None,m=None):
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if (h==None or m==None):
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now = time.localtime()
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h=now.tm_hour
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m=now.tm_min
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# configures hour and minutes of the internal clock and
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# displays the time in the lower right corner.
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# turns off when something gets written into the line.
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# two bytes have to follow with hour and minute
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self.write("\x1F\x54%c%c" % (h,m) )
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self.cmd("\x1F\x54%c%c" % (chr(h),chr(m)) )
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self.cmd_curmode_hscroll() # makes the time more robust...
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def cmd(self,text): #for commands: do not reset screensaver timeout
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self.write(text,False)
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def write(self,text):
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def write(self,text,idle_reset=True): #for data: reset screensaver timeout
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if (not self.serialport == None):
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if (idle_reset):
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self.screensaver.idle_reset();
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self.scroll_line1=None
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self.scroll_line2=None
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self.serialport.write(text)
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else:
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self.open_port()
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def setIdlemessage(self,text):
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self.idlemessage=text
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def getIdlemessage(self):
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return self.idlemessage
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def mutex_get(self):
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self.portlock.acquire()
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def mutex_release(self):
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self.portlock.release()
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def terminate(self):
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self.runme=False
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if (not self.screensaver == None):
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self.screensaver.terminate()
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self.screensaver = None
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import threading
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import time
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class Screensaver (threading.Thread):
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def __init__(self,display):
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threading.Thread.__init__(self)
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self.display=display
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self.runme=True
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self.idlecounter=0
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self.timeout_dim=30
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self.timeout_message=60
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self.timeout_off=300
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self.mutex = allocate_lock()
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threading.Thread.__init__(self)
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def run(self):
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#print "Starting Screensaver thread"
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while(self.runme):
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self.mutex.acquire()
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self._main_loop()
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self.mutex.release()
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time.sleep(.5)
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#print "Exiting Screensaver thread"
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def terminate(self):
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self.runme = False
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def idle_reset(self):
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self.mutex.acquire()
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self.idlecounter=0
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self.display.cmd_brightness(5)
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self.mutex.release()
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def _main_loop(self):
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if (self.idlecounter < self.timeout_off):
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self.idlecounter+=1
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if (self.idlecounter>=self.timeout_dim and self.idlecounter <= (self.timeout_dim+7)):
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x = (8-( self.idlecounter - self.timeout_dim))/2
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self.display.mutex_get()
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self.display.cmd_brightness(1+x)
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self.display.mutex_release()
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return
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if (self.idlecounter==self.timeout_message):
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self.display.mutex_get()
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self.display.cmd_time_set()
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self.display.scroll_line1 = self.display.getIdlemessage()
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self.display.mutex_release()
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return
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if (self.idlecounter==self.timeout_off):
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self.display.mutex_get()
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self.display.cmd_display_on(False)
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self.display.mutex_release()
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return
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def __del__(self):
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print("bye")
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@ -42,7 +42,6 @@ display_fifo = None
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scroll_line1 = None
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scroll_line2 = None
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idlemessage = None
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offset_line1 = 0
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offset_line2 = 0
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@ -56,158 +55,6 @@ SCREENSAVER_OFF = 2* 10*60
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lock = allocate_lock()
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#Helper-Function, scrolls text in a specific line.
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def display_scroll_text(line,text):
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global scroll_line1,scroll_line2
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global offset_line1,offset_line2
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lock.acquire()
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if (line==1): #clear the line on invocation:
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send_display("\x1f\x24\x01%c\x18" % chr(line) )
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scroll_line1 = text
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offset_line1=0
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if (line==2): #clear the line on invocation:
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send_display("\x1f\x24\x01%c\x18" % chr(line) )
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scroll_line2 = text
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offset_line2=0
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lock.release()
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def display_handle_scroll(line,text,offset):
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if (text):
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l = len(text)
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if (l<21):
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if (offset == 0):
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send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
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offset=1
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else:
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send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
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missing_chars=20+offset-l
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if (missing_chars>0):
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send_display(text[:missing_chars])
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offset=((offset+1)%l)
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else:
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offset=0 #reset offset
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return offset
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def display_cmd_dim(x):
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global brightness
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if (brightness!=x):
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if (x==0): #turn off:
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send_display("\x1F\x45%c" % chr(255) )
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brightness = x
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return
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else:
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if (brightness==0): #turn on, then set wanted brightness:
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send_display("\x1F\x45%c" % chr(0) )
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brightness = x
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send_display("\x1F\x58%c" % chr(x-1) )
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def display_thread(x):
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global scroll_line1,scroll_line2
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global offset_line1,offset_line2
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global screensaver
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global idlemessage
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offset_line1=0
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offset_line2=0
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while(True):
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lock.acquire()
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offset_line1 = display_handle_scroll(1,scroll_line1,offset_line1)
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offset_line2 = display_handle_scroll(2,scroll_line2,offset_line2)
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if (screensaver <= SCREENSAVER_OFF):
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screensaver=screensaver+1
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if ((screensaver >= SCREENSAVER_DIM) and (screensaver <= (SCREENSAVER_DIM+7))): #activate first stage of screensaver:
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x = (8-( screensaver - SCREENSAVER_DIM))/2
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display_cmd_dim(1+x)
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|
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if (screensaver == SCREENSAVER_TIMEOUT):
|
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now = time.localtime()
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send_display("\x0c\x1F\x54%c%c\x1f\x03" % (chr(now.tm_hour),chr(now.tm_min)));
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if (scroll_line2):
|
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scroll_line1=scroll_line2
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else:
|
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scroll_line1=idlemessage
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scroll_line2=None
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offset_line1=0
|
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offset_line2=0
|
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|
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if (screensaver == SCREENSAVER_OFF):
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display_cmd_dim(0)
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|
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lock.release()
|
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time.sleep(.5)
|
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|
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|
||||
def send_display(s):
|
||||
global display_fifo
|
||||
if not display_fifo:
|
||||
try:
|
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fd = os.open( "/tmp/display", os.O_WRONLY)
|
||||
display_fifo = os.fdopen(fd,"w")
|
||||
except OSError:
|
||||
display_fifo = None
|
||||
pass
|
||||
return
|
||||
except IOError:
|
||||
display_fifo = None
|
||||
pass
|
||||
return
|
||||
try:
|
||||
display_fifo.write(s)
|
||||
display_fifo.flush()
|
||||
except IOError:
|
||||
display_fifo = None
|
||||
pass
|
||||
return
|
||||
|
||||
|
||||
#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)
|
||||
|
||||
|
||||
#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
|
||||
|
||||
lock.acquire()
|
||||
screensaver=0
|
||||
offset_line1=0
|
||||
offset_line2=0
|
||||
scroll_line1=None
|
||||
scroll_line2=None
|
||||
display_cmd_dim(5)
|
||||
send_display(s)
|
||||
lock.release()
|
||||
|
||||
def clear():
|
||||
os.system('clear')
|
||||
|
|
@ -328,7 +175,7 @@ class Status:
|
|||
if self.logged_in():
|
||||
print('Eingeloggt als: %s%s%s' % (COLOR_SOME, self.login_name, COLOR_RESET))
|
||||
print()
|
||||
print_display('\x0cHallo %-14s' % (self.login_name[:13]+"!") )
|
||||
myDisplay.write('\x0cHallo %-14s' % (self.login_name[:13]+"!") )
|
||||
if self.transfers:
|
||||
initial_command, initial_balance = self.transfers[0]
|
||||
|
||||
|
|
@ -360,11 +207,11 @@ class Status:
|
|||
mylabel="Pfand "+command.commodity_label()[:9]
|
||||
if (mycmd==3):
|
||||
mylabel=("%-13s" % (command.commodity_label()[:13]))+"+P"
|
||||
print_display('\x0b%-15s %4.2f' % (asciify(mylabel)[:15],abs(command.difference())));
|
||||
print_display('\x0b\nSUMME: {%02i} %8.2f' % ((i-1),initial_balance - self.balance));
|
||||
myDisplay.write('\x0b%-15s %4.2f' % (asciify(mylabel)[:15],abs(command.difference())));
|
||||
myDisplay.write('\x0b\nSUMME: {%02i} %8.2f' % ((i-1),initial_balance - self.balance));
|
||||
else:
|
||||
print_display('\x0b%-15s %4.2f' % (command.label()[:15],abs(command.difference())));
|
||||
print_display('\x0b\nSUMME: {%02i} %8.2f' % ((i-1),initial_balance - self.balance));
|
||||
myDisplay.write('\x0b%-15s %4.2f' % (command.label()[:15],abs(command.difference())));
|
||||
myDisplay.write('\x0b\nSUMME: {%02i} %8.2f' % ((i-1),initial_balance - self.balance));
|
||||
|
||||
if len(self.transfers) > 1:
|
||||
show_total(self.balance - initial_balance, plus='+')
|
||||
|
|
@ -373,13 +220,13 @@ class Status:
|
|||
|
||||
if self.balance < 0:
|
||||
warn_balance()
|
||||
print_display('\x0b\nKonto: %5.2f!' % (self.balance) )
|
||||
myDisplay.write('\x0b\nKonto: %5.2f!' % (self.balance) )
|
||||
print()
|
||||
|
||||
print(COLOR_MUCH + 'Committen nicht vergessen.' + COLOR_RESET)
|
||||
else:
|
||||
print('Kontostand beträgt: %s%.2f Euro%s' % (COLOR_MUCH, self.balance, COLOR_RESET))
|
||||
display_screen("KONTOSTAND","%s: %.2f Euro" % (self.login_name,self.balance))
|
||||
myDisplay.display_screen("KONTOSTAND","%s: %.2f Euro" % (self.login_name,self.balance))
|
||||
if self.balance < 0:
|
||||
print()
|
||||
warn_balance()
|
||||
|
|
@ -387,7 +234,7 @@ class Status:
|
|||
print(COLOR_MUCH + 'Bitte einloggen.' + COLOR_RESET)
|
||||
print()
|
||||
print('Scanne dazu deine ID-Karte mit dem Barcode-Leser.')
|
||||
display_screen("LOGIN","Bitte scanne Deinen login-Token! *** ")
|
||||
myDisplay.display_screen("LOGIN","Bitte scanne Deinen login-Token! *** ")
|
||||
print()
|
||||
|
||||
def logged_in(self):
|
||||
|
|
@ -416,7 +263,7 @@ class Status:
|
|||
try:
|
||||
command.run(self.login_name)
|
||||
except urllib2.HTTPError as e:
|
||||
print_display('\x0cFEHLER: Server Error%20s' % str(e)[:20])
|
||||
myDisplay.display_screen("Server error",'Server Error: %s' % str(e))
|
||||
error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
|
||||
break
|
||||
else:
|
||||
|
|
@ -499,11 +346,11 @@ class Status:
|
|||
error_page(_PRODUCT_FIRST)
|
||||
return
|
||||
if prev.includes_deposit():
|
||||
print_display('\x0cFEHLER: schon Pfand %20s' % prev.item_name()[:20])
|
||||
myDisplay.write('\x0cFEHLER: schon Pfand %20s' % prev.item_name()[:20])
|
||||
error_page('FEHLER: Pfand für Produkt "%s" bereits aktiviert' % prev.item_name())
|
||||
return
|
||||
if prev.deposit_value() <= 0:
|
||||
print_display('\x0cFEHLER: Pfandfrei! %20s' % prev.item_name()[:20])
|
||||
myDisplay.write('\x0cFEHLER: Pfandfrei! %20s' % prev.item_name()[:20])
|
||||
error_page('FEHLER: Produkt "%s" hat kein Pfand' % prev.item_name())
|
||||
return
|
||||
before = prev.difference()
|
||||
|
|
@ -545,14 +392,14 @@ def print_prompt():
|
|||
|
||||
|
||||
def handle(line, status):
|
||||
global idlemessage
|
||||
if line == 'exit':
|
||||
clear()
|
||||
print_display("\x0c")
|
||||
myDisplay.write("\x0c")
|
||||
myDisplay.terminate()
|
||||
sys.exit(0)
|
||||
|
||||
if status.logged_in():
|
||||
idlemessage=" Comitten nicht vergessen! ***"
|
||||
myDisplay.setIdlemessage(" Comitten nicht vergessen! ***")
|
||||
if line in CODES:
|
||||
call = CODES[line]
|
||||
method = call[0]
|
||||
|
|
@ -563,15 +410,15 @@ def handle(line, status):
|
|||
item = status.find(line)
|
||||
except urllib2.HTTPError as e:
|
||||
if e.code == 404: # URL not found == item not found with REST
|
||||
print_display('\x0cERROR: %13sCode ist unbekannt' % ( line[:13]))
|
||||
myDisplay.display_screen("FEHLER","Code ist unbekannt: '%s'" % ( line[:23]))
|
||||
error_page('FEHLER: Aktion oder Ware "%s" nicht bekannt' % line)
|
||||
else:
|
||||
print_display('\x0cERROR: Server Error%20s' % str(e)[:20])
|
||||
myDisplay.display_screen("Server error",'%20s' % str(e)[:20])
|
||||
error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
|
||||
else:
|
||||
status.buy(item)
|
||||
else:
|
||||
idlemessage="Mir ist langweilig!"
|
||||
myDisplay.setIdlemessage("Mir ist langweilig!")
|
||||
try:
|
||||
status.login(line)
|
||||
except urllib2.HTTPError as e:
|
||||
|
|
@ -584,7 +431,7 @@ def handle(line, status):
|
|||
pass
|
||||
|
||||
if item is None:
|
||||
display_screen("FEHLER","Nutzer ist unbekannt: '%s' *** " % line)
|
||||
myDisplay.display_screen("FEHLER","Nutzer ist unbekannt: '%s' *** " % line)
|
||||
|
||||
error_page('FEHLER: Produkt oder Nutzer "%s" nicht bekannt' % line,
|
||||
hint_message='Ist in der WebApp unter "Einstellungen" ' \
|
||||
|
|
@ -592,8 +439,9 @@ def handle(line, status):
|
|||
'als erlaubt markiert?')
|
||||
else:
|
||||
item_info_page(item)
|
||||
|
||||
else:
|
||||
print_display('\x0cFEHLER: Server Error%20s' % str(e)[:20])
|
||||
myDisplay.display_screen("FEHLER",'Server Error %20s' % str(e)[:20])
|
||||
error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
|
||||
except urllib2.URLError as e:
|
||||
error_page('FEHLER bei Kommunikation mit Server "%s"' % str(e))
|
||||
|
|
@ -615,21 +463,19 @@ def main():
|
|||
global myDisplay
|
||||
|
||||
myDisplay = Display("/dev/ttyUSB0")
|
||||
myDisplay.start()
|
||||
myDisplay.cmd_reset()
|
||||
myDisplay.cmd_cursor_show(False)
|
||||
|
||||
print_display("\x1b\x40\x1f\x43\x00")
|
||||
start_new_thread(display_thread,(1,))
|
||||
|
||||
#display_scroll_text(1,"Line1: Text, dumm scrollend!")
|
||||
#display_scroll_text(4,"Line2: Und hier Text, auch dumm scrollend!")
|
||||
display_screen("HINWEIS","Herzlich willkommen bei der Freitagsrunde! *** ")
|
||||
myDisplay.display_screen("HINWEIS","Herzlich willkommen bei der Freitagsrunde! *** ")
|
||||
time.sleep(5)
|
||||
while True:
|
||||
clear()
|
||||
status.dump()
|
||||
print_prompt()
|
||||
line = read_line(sys.stdin, timeout=3*60.0, timeout_func=status.logout)
|
||||
if line:
|
||||
print_display('\x0cBarcode:\n%20s' % line[:20])
|
||||
myDisplay.write('\x0cBarcode:\n%20s' % line[:20])
|
||||
handle(line, status)
|
||||
|
||||
|
||||
|
|
@ -637,5 +483,7 @@ if __name__ == '__main__':
|
|||
try:
|
||||
main()
|
||||
except KeyboardInterrupt:
|
||||
myDisplay.terminate()
|
||||
myDisplay.write("\x1b\x40Goodbye!")
|
||||
pass
|
||||
print_display("\x1b\x40Goodbye!")
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue