66 lines
2.0 KiB
Python
66 lines
2.0 KiB
Python
import colors
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class WeatherDisplay:
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def __init__(self, characterDisplay, topRow):
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self.characterDisplay = characterDisplay
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self.topRow = topRow
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self.twoDigitStartColumn = 6
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self.oneDigitStartColumn = 10
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self.digitWidth = 4
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self.currentTemperature = ''
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self.color = colors.BLUE
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self.weatherFile = 'weather.txt'
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def showWeather(self):
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temperature = self.getTemperature()
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if temperature != self.currentTemperature:
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self.currentTemperature = temperature
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self.characterDisplay.clearRow(self.topRow)
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if self.isTemperatureValid(temperature):
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self.showTemperature(list(temperature))
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def getTemperature(self):
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try:
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with open(self.weatherFile) as file:
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return file.readline().strip()
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except Exception as e:
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print(e, flush=True)
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return 'error'
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def isTemperatureValid(self, temperature):
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return not (temperature == 'error' or temperature == 'init' or temperature == 'halted')
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def showTemperature(self, temperature):
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start = self.getStartColumn(temperature)
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for c in temperature:
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if c == '-':
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self.characterDisplay.displayNegative(
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x=start-3,
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y=self.topRow,
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color=self.color
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)
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else:
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self.characterDisplay.displayDigit(
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x=start,
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y=self.topRow,
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digit=c,
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color=self.color
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)
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start = start + self.digitWidth
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self.characterDisplay.displayDegree(
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x=start,
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y=self.topRow,
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color=self.color
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)
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def getStartColumn(self, temperature):
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return self.oneDigitStartColumn if (self.isOneDigit(temperature)) else self.twoDigitStartColumn
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def isOneDigit(self, temperature):
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return (len(temperature) == 2 and temperature[0] == '-') or len(temperature) == 1
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