245 lines
6.7 KiB
Python
245 lines
6.7 KiB
Python
# import sys
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import argparse
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# Order of types must match order of arguments defined
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# (or else arg validation will no longer work properly)
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TYPES = ['hex', 'rgb', 'cmyk']
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# look into CMY, HSL, HSV
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HEX_LETTERS = ['a', 'b', 'c', 'd', 'e', 'f']
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def main():
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# Set up arguments
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parser = argparse.ArgumentParser()
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parser.add_argument('-hex', action='store_true', help='convert from hex (accepts hexadecimal input [ffffff] or string ["#ffffff"] (both are case insensitive)')
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parser.add_argument('-rgb', action='store_true', help='convert from RGB (accepts integer input [R G B], or string [\"rgb(R, G, B)\"] (case/whitespace insensitive)')
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parser.add_argument('-cmyk', action='store_true', help='convert from CMYK (accepts integer input [C M Y K], or string [\"cmyk(C, M, Y, K)\"] (case/whitespace insensitive)')
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parser.add_argument('color', nargs='*', help='accepts a color in Hex, RGB, CMYK, or HSL and performs format conversions (does not support CMYK profiles, conversions are uncalibrated)')
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args = parser.parse_args()
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# debug print
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print('args type: ', type(vars(args)))
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print(args, '\n')
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# INPUT SYNTAX VALIDATION
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if not validateArguments(args) :
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return;
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color = args.color
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# HANDLE HEX INPUT
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if args.hex :
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color = color[0].lower().replace(' ', '').strip('#')
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if not validateHex(color) :
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return
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convertFromHex(color)
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# HANDLE RGB INPUT
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if args.rgb :
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# cleanse any non-numerical stuff
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if len(color) == 1 :
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color = color[0].lower().strip('rgb(').strip(')').replace(' ', '').split(',')
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if not validateRGB(color) :
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return
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for i in range(len(color)) :
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color[i] = int(color[i])
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convertFromRGB(color)
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# HANDLE CMYK INPUT
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if args.cmyk :
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# cleanse any non-numerical stuff
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if len(color) == 1 :
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color = color[0].lower().strip('cmyk(').strip(')').replace('%', '').replace(' ', '').split(',')
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if not validateCMYK(color) :
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return
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print('convert cmyk: ', color)
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convertFromCMYK(color)
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##
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# HEX CONVERSION SECTION
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##
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# Takes in valid RGB code and converts it to the other formats
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def convertFromHex(hexCode) :
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print('convert hex: ', hexCode)
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rgbValues = hexToRGB(hexCode)
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print("RGB: ", rgbValues)
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cmykValues = rgbToCMYK(rgbValues)
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print("CMYK: ", cmykValues)
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# convertToHSL('hex', code)
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def rgbToHex(rgbValues) :
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hexValue = ''
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for rgbValue in rgbValues :
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hexValue += hex(int(rgbValue / 16))
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hexValue += hex(int(rgbValue % 16))
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return hexValue
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##
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# RGB CONVERSION SECTION
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##
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# Takes in valid RGB code and converts it to the other formats
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def convertFromRGB(rgbValues) :
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print('convert RGB: ', rgbValues)
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hexCode = rgbToHex(rgbValues)
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print('Hex: ', hexCode)
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cmykValues = rgbToCMYK(rgbValues)
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print('CMYK: ', cmykValues)
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# convertToHSL('rgb', rgbValues)
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def hexToRGB(hexCode) :
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rgbValues = []
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tempSum = 0
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i = 0
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while i < 6 :
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tempSum += int(hexCode[i], 16) * 16
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tempSum += int(hexCode[i+1], 16)
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rgbValues.append(tempSum)
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i = i + 2
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tempSum = 0
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return rgbValues
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##
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# CMYK CONVERSION SECTION
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##
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def convertFromCMYK() :
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print('huh')
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def rgbToCMYK(rgbValues) :
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# Normalize RGB values
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normalRed = rgbValues[0] / 255
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normalGreen = rgbValues[1] / 255
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normalBlue = rgbValues[2] / 255
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# Establish black
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black = 1 - max(normalRed, normalGreen, normalBlue)
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x = 1 - black
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# Convert
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cyan = (1 - normalRed - black) / x
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magenta = (1 - normalGreen - black) / x
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yellow = (1 - normalBlue - black) / x
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return [cyan, magenta, yellow, black]
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def cmykToRGB(cmykValues) :
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print('ddf')
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##
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# INPUT VALIDATION SECTION
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##
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# Takes in a string. Returns True if valid Hex color code.
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def validateHex(value) :
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if len(value) != 6 :
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print('ERROR: Improper number of values for hex (should be 6 digits)')
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return False
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for i in range(len(value)):
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if value[i-1].isnumeric() :
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continue
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elif HEX_LETTERS.count(value[i-1]) != 0 :
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continue
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else :
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print('ERROR: Invalid character in hex code')
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return False
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return True
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# Takes in a list of numerical strings. Returns True if valid RGB values.
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def validateRGB(values) :
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if len(values) != 3 :
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print('ERROR: Improper number of values for RGB (should be 3)')
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return False
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for value in values :
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if not value.strip().isnumeric() :
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print('ERROR: Improper format for RGB value(s)')
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return False
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value = int(value)
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if (value < 0) or (value > 255) :
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print('ERROR: Each RBG value must be between 0-255')
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return False
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return True
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# Takes in a string. Returns True if valid CMYK values.
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def validateCMYK(values) :
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if len(values) != 4 :
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print('ERROR: Improper number of values for CMYK (should be 4)')
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return False
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for value in values :
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if not value.isnumeric() :
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print('ERROR: Improper format for CMYK value(s). All values must be numeric and between 0-100(%)!')
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return False
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value = int(value)
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if (value < 0) or (value > 100) :
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print('ERROR: Each CMYK value must be between 0-100(%)')
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return False
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return True
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##
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# GENERAL UTILITIES
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##
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# Takes in the program's arguments generated by argparse. Returns True if valid arguments
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def validateArguments(args) :
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# First, check that only one input flag is being used
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flagsActive = 0
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for flag in range(len(vars(args))-1) :
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# this uses our TYPES list to key into the args dictionary and determine how many flags are True
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if vars(args)[TYPES[flag]] :
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flagsActive += 1
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if flagsActive > 1 :
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print('ERROR: Currently this tool only supports one input type at a time. Too many flags!')
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return False
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# Second, check that there is a color code to convert
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if len(args.color) == 0 :
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print('ERROR: Must enter both an input flag and color code (did you forget to wrap color code in quotes?)\nFor more info, use the \'-h\' or \'--help\' flag.')
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return False
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return True
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# Takes in a decimal number and converts it to hexadecimal
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def hex(number) :
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number = int(number)
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if number > 16 :
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print("ERROR: Decimal to Hexidecimal conversion failed")
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return "ERROR: Decimal to Hexidecimal conversion failed"
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if number < 10 :
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return str(number)
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return HEX_LETTERS[number % 10]
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if __name__ == '__main__' :
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main()
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