96 lines
3.6 KiB
Python
96 lines
3.6 KiB
Python
from machine import I2C, Pin, Timer
|
|
import time
|
|
|
|
|
|
class CounterScreen:
|
|
def __init__(self, lcd, counterArray):
|
|
self.lcd = lcd
|
|
self.lcd.clear()
|
|
self.counterArray = counterArray
|
|
self._zfill = lambda s, length: '{:0>{w}}'.format(s, w=length)
|
|
self.last_line1 = ""
|
|
self.last_line2 = ""
|
|
self.too_many_counters_warning_shown = False
|
|
|
|
def _too_many_counters_warning(self):
|
|
# Function:
|
|
# show a short message saying that not more that 5 counters can be displayed.
|
|
# WARNING:
|
|
# This is a INTERNAL class function, don't call from outside!
|
|
# Stops program flow for approx. 15s
|
|
|
|
self.lcd.move_to(0,0)
|
|
self.lcd.putstr(" WARNING! ")
|
|
message = "Can't display more than 5 counters. Cutting the overflow. "
|
|
message = message + " +++ " + message
|
|
while message != " ":
|
|
self.lcd.move_to(0,1)
|
|
self.lcd.putstr(message[:16])
|
|
message = message[1:]
|
|
time.sleep(0.07)
|
|
|
|
self.lcd.clear()
|
|
self.too_many_counters_warning_shown = True
|
|
|
|
def show_screen(self):
|
|
# Function:
|
|
# show a screen on the lcd, table layout: row 1 shows the short names of the counters,
|
|
# row 2 shows the values.
|
|
# WARNING:
|
|
# This function SHALL be called once at init of the class as it can stop execution for
|
|
# approx. 15s at first run!
|
|
|
|
line1 = ""
|
|
line2 = ""
|
|
number_counters = len(self.counterArray._counters)
|
|
if number_counters > 5:
|
|
if not self.too_many_counters_warning_shown:
|
|
self._too_many_counters_warning()
|
|
number_counters = 5
|
|
|
|
|
|
## show different views depending on how many counters exist
|
|
if number_counters < 1:
|
|
line1 = " WARNING! "
|
|
line2 = " No counters. "
|
|
|
|
elif number_counters == 1:
|
|
line1 = "* C1 "
|
|
line2 = "* " + str(list(self.counterArray._counters.items())[0][1].value)
|
|
|
|
elif number_counters == 2:
|
|
v0 = str(list(self.counterArray._counters.items())[0][1].value)
|
|
v1 = str(list(self.counterArray._counters.items())[1][1].value)
|
|
line1 = "* C1 * C2 "
|
|
line2 = "* " + v0 + (6-len(v0))*" " + "* " + v1 + (6-len(v1)) * " "
|
|
|
|
elif number_counters == 3:
|
|
v0 = str(list(self.counterArray._counters.items())[0][1].value)
|
|
v1 = str(list(self.counterArray._counters.items())[1][1].value)
|
|
v2 = str(list(self.counterArray._counters.items())[2][1].value)
|
|
line1 = "C1 * C2 * C3 "
|
|
line2 = v0 + (3-len(v0))*" " + " * " + v1 + (3-len(v1))*" " + " * " + v2 + (4-len(v2))*" "
|
|
|
|
elif number_counters == 4:
|
|
line1 = "|C1 |C2 |C3 |C4 "
|
|
for i in range(4):
|
|
line2 += "|" + self._zfill(list(self.counterArray._counters.items())[i][1].value, 3)[:3]
|
|
|
|
else:
|
|
line1 = "|C1|C2|C3|C4|C5|"
|
|
for i in range(5):
|
|
line2 += "|" + self._zfill(list(self.counterArray._counters.items())[i][1].value, 2)[:2]
|
|
line2 += "|"
|
|
|
|
|
|
# check if something changed, if so, redraw it
|
|
if line1 != self.last_line1:
|
|
self.lcd.putstr(line1[:16])
|
|
self.last_line1 = line1
|
|
self.lcd.move_to(0,1)
|
|
if line2 != self.last_line2:
|
|
self.lcd.putstr(line2[:16])
|
|
self.last_line2 = line2
|
|
|
|
|