svgColourManager.py
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	# takes an SVG file as input. Creates a table associating geographic identifiers and their colours.
	# Writes an SVG file with new colours.

	#from bs4 import BeautifulSoup
	#import re


	class SvgColourManager:
	# Just used in constructor to fill self.listOfIDs
	def fillListOfIDs(self):
	from idTagDetector import IdTagDetector
	detector = IdTagDetector(self.inputSVG)
	detector.detect()
	return detector.detectedTags

	def __init__(self, arg):
	#self.inputSVG = open(arg, 'r').read()
	self.inputSVG = arg
	self.tagsAndColours = {}
	self.listOfIDs = self.fillListOfIDs()



	# sets all subdivision in white
	def colourAllWhite(self):
	for area in self.listOfIDs:
	self.tagsAndColours[area] = "#FFFFFF"

	# I see a red door and I want to paint it blaaaack.
	# Sorry.
	# sets all subdivision in black
	def colourAllBlack(self):
	for area in self.listOfIDs:
	self.tagsAndColours[area] = "#000000"

	# sets all subdivision in white
	def colourAllRandom(self):
	import random
	for area in self.listOfIDs:
	self.tagsAndColours[area] = "#"+hex(random.randint(0, 16777215))[2:].upper()

	# sets all subdivision in white
	def colourAllRandomRed(self):
	import random
	for area in self.listOfIDs:
	#self.tagsAndColours[area] = hex(random.randint(0, 16777215))[2:].upper()
	redValue = random.randint(100, 255)
	rgbTuple = (255, 255-redValue, 255-redValue)
	hexColour = '%02x%02x%02x' % rgbTuple
	self.tagsAndColours[area] = "#"+hexColour

	# Outputs content of self.tagsAndColours to standard output.
	def listTagsAndColours(self):
	for tag in self.tagsAndColours.keys():
	print(tag+"\t\t"+self.tagsAndColours[tag])

	# blanks (sets "fill=None") the elements in the list. Useful for borders etc.
	def blankElementsInList(self, arg):
	for i in arg:
	if i in self.tagsAndColours.keys():
	self.tagsAndColours[i] = "none"

	# Inserts CSS style instructions between header and body of the SVG file.
	def editMap(self):
	import re

	#Assembles output line, inserting CSS style instructions between header and body of the SVG file.
	regex = re.compile("(^.?<svg.?>)(.*)", re.DOTALL)
	m = regex.match(self.inputSVG)
	splitFile = re.split (regex, self.inputSVG)
	outputString = m.group(1) + "\n"
	outputString = outputString+"<style type=\"text/css\"><![CDATA[\n"
	for tag in self.tagsAndColours.keys():
	outputString = outputString+"\t#"+tag+" { fill: "+self.tagsAndColours[tag]+" }\n"
	outputString = outputString+"]]></style>\n"+m.group(2)

	print(outputString)

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