91 lines
2.7 KiB
Python
91 lines
2.7 KiB
Python
import chutney.colors as colors
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class WeatherDisplayer:
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def __init__(self, symbolDisplayer, topRow):
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self.symbolDisplayer = symbolDisplayer
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self.topRow = topRow
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self.twoDigitStartColumn = 5
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self.oneDigitStartColumn = 7
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self.digitWidth = 4
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self.currentTemperature = ''
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self.color = colors.ORANGE
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self.weatherFile = 'data/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.symbolDisplayer.clearRow(self.topRow)
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if self.isTemperatureValid(temperature):
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self.updateColor(temperature)
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self.showTemperature(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 updateColor(self, temperature):
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if int(temperature) > 0:
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self.color = colors.ORANGE
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else:
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self.color = colors.BLUE
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def showTemperature(self, temperature):
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column = self.getStartColumn(temperature)
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for c in list(temperature):
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if c == '-':
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offset = 2 if self.startsWithOne(temperature) else 3
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self.showNegative(column - offset)
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else:
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self.showDigit(column, c)
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column = column + self.digitWidth
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self.showDegree(column)
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def getStartColumn(self, temperature):
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offset = 1 if self.startsWithOne(temperature) else 0
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startColumn = self.oneDigitStartColumn if self.isOneDigit(temperature) else self.twoDigitStartColumn
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return startColumn - offset
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def startsWithOne(self, temperature):
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absoluteTemperature = abs(int(temperature))
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return absoluteTemperature == 1 or absoluteTemperature//10 == 1
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def isOneDigit(self, temperature):
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return abs(int(temperature))//10 == 0
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def showNegative(self, column):
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self.symbolDisplayer.displayNegative(
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x=column,
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y=self.topRow,
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color=self.color
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)
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def showDigit(self, column, digit):
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self.symbolDisplayer.displayDigit(
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x=column,
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y=self.topRow,
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digit=digit,
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color=self.color
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)
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def showDegree(self, column):
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self.symbolDisplayer.displayDegree(
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x=column,
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y=self.topRow,
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color=self.color
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)
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