325 lines
7.3 KiB
TeX
325 lines
7.3 KiB
TeX
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\appendix
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\chapter{Python code base display module}
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\label{app:base_py}
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\textbf{\emph{All figures, \LaTeX\ and Python files are available on the dedicated \hreffn{https://github.com/LordBaryhobal/5D\_Heredero\_Louis\_TM2022}{GitHub repository}}}
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\vspace{12pt}
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This module is used by the other generator scripts to display codes.
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\begin{tcolorbox}[breakable,colback=white,title=base.py]
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\begin{minted}{python}
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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This module provides a base class to display codes and enable saving
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(C) 2022 Louis Heredero louis.heredero@edu.vs.ch
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"""
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import pygame
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class Base:
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def __init__(self, width, height, caption):
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pygame.init()
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pygame.display.set_caption(caption)
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self.w = pygame.display.set_mode([width, height])
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self.controls([
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"CTRL + S: save as",
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"ESC: quit"
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])
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def controls(self, controls, margin=2):
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longest = max(list(map(len, controls))+[10])
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print("┌─" + "─"*(longest+margin) + "─┐")
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_ = "\x1b[1;4mControls:\x1b[0m"
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_ += " "*(longest+margin-9)
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print(f"│ " + _ + " │")
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for c in controls:
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print("│ " + " "*margin + c.ljust(longest) + " │")
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print("└─" + "─"*(longest+margin) + "─┘")
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def main(self):
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pygame.display.flip()
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stop = False
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while not stop:
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event = pygame.event.wait()
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# ESC or close button -> quit
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if event.type == pygame.QUIT:
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stop = True
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elif event.type == pygame.KEYDOWN:
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if event.key == pygame.K_ESCAPE:
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stop = True
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# CTRL+S -> save image
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elif event.key == pygame.K_s and \
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event.mod & pygame.KMOD_CTRL:
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self.save()
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def save(self):
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path = input("Save as: ")
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pygame.image.save(self.w, path)
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\end{minted}
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\end{tcolorbox}
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\chapter{Code 39 python implementation}
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\label{app:code39_py}
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\begin{tcolorbox}[breakable,colback=white,title=code39.py]
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\begin{minted}{python}
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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This module can generate Code-39 barcodes
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(C) 2022 Louis Heredero louis.heredero@edu.vs.ch
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"""
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import pygame
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code39_dict = {
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"A": "100001001", "B": "001001001",
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"C": "101001000", "D": "000011001",
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"E": "100011000", "F": "001011000",
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"G": "000001101", "H": "100001100",
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"I": "001001100", "J": "000011100",
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"K": "100000011", "L": "001000011",
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"M": "101000010", "N": "000010011",
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"O": "100010010", "P": "001010010",
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"Q": "000000111", "R": "100000110",
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"S": "001000110", "T": "000010110",
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"U": "110000001", "V": "011000001",
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"W": "111000000", "X": "010010001",
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"Y": "110010000", "Z": "011010000",
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"0": "000110100", "1": "100100001",
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"2": "001100001", "3": "101100000",
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"4": "000110001", "5": "100110000",
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"6": "001110000", "7": "000100101",
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"8": "100100100", "9": "001100100",
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" ": "011000100", "-": "010000101",
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"$": "010101000", "%": "000101010",
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".": "110000100", "/": "010100010",
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"+": "010001010", "*": "010010100"
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}
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def code39(text):
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text = text.upper()
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text = list(map(lambda c: code39_dict[c], text))
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return "0".join(text)
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def draw_barcode(barcode, win):
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barcode = list(map(int, barcode))
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width = win.get_width()*0.8
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height = win.get_height()*0.5
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thicks = sum(barcode)
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thins = len(barcode)-thicks
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bar_w = width/(thicks*2+thins)
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win.fill((255,255,255))
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x = win.get_width()*0.1
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y = win.get_height()*0.25
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for i, c in enumerate(barcode):
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w = 2*bar_w if c else bar_w
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if i%2 == 0:
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pygame.draw.rect(win, (0,0,0), [x, y, w, height])
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x += w
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if __name__ == "__main__":
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import base
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b = base.Base(800, 500, "Code-39 barcode generator")
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barcode = code39("*CODE-39*")
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draw_barcode(barcode, b.w)
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b.main()
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\end{minted}
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\end{tcolorbox}
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\chapter{EAN python implementation}
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\label{app:ean_py}
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\begin{tcolorbox}[breakable,colback=white,title=ean.py]
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\begin{minted}{python}
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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This module can generate EAN-8 and EAN-13 barcodes
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(C) 2022 Louis Heredero louis.heredero@edu.vs.ch
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"""
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import pygame
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A = [
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0b0001101,
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0b0011001,
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0b0010011,
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0b0111101,
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0b0100011,
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0b0110001,
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0b0101111,
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0b0111011,
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0b0110111,
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0b0001011
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]
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# XOR 0b1111111
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C = list(map(lambda a: a^127, A))
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# Reverse bit order
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B = list(map(lambda c: int(f"{c:07b}"[::-1],2), C))
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ean13_patterns = [
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"AAAAAA",
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"AABABB",
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"AABBAB",
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"AABBBA",
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"ABAABB",
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"ABBAAB",
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"ABBBAA",
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"ABABAB",
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"ABABBA",
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"ABBABA"
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]
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def bin_list(n):
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return list(map(int,f"{n:07b}"))
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def luhn(digits):
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checksum = sum([
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digits[-i-1]*(3-i%2*2)
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for i in range(len(digits))
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])
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ctrl_key = 10 - checksum%10
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if ctrl_key == 10:
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ctrl_key = 0
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return ctrl_key
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def ean8(digits):
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digits.append(luhn(digits))
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elmts = []
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elmts += [1,0,1] #delimiter
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for digit in digits[:4]:
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elmts += bin_list(A[digit])
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elmts += [0,1,0,1,0] #middle delimiter
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for digit in digits[4:]:
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elmts += bin_list(C[digit])
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elmts += [1,0,1] #delimiter
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return elmts
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def ean13(digits):
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pattern = ean13_patterns[digits[0]]
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digits.append(luhn(digits))
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elmts = []
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elmts += [1,0,1] #delimiter
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for d in range(1,7):
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_ = A if pattern[d-1] == "A" else B
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digit = digits[d]
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elmts += bin_list(_[digit])
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elmts += [0,1,0,1,0] #middle delimiter
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for digit in digits[7:]:
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elmts += bin_list(C[digit])
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elmts += [1,0,1] #delimiter
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return elmts
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def draw_barcode(barcode, win):
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width = win.get_width()*0.8
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height = win.get_height()*0.5
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bar_w = width/len(barcode)
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rnd_bar_w = round(bar_w)
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win.fill((255,255,255))
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x = win.get_width()*0.1
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y = win.get_height()*0.25
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for c in barcode:
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if c:
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pygame.draw.rect(win, (0,0,0), [x, y, rnd_bar_w, height])
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x += bar_w
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if __name__ == "__main__":
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import base
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b = base.Base(800, 500, "EAN-8 / EAN-13 barcode generator")
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#barcode = ean8([8,4,2,7,3,7,2])
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barcode = ean13([9,7,8,2,9,4,0,6,2,1,0,5])
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draw_barcode(barcode, b.w)
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b.main()
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\end{minted}
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\end{tcolorbox}
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\chapter{QR-Code tables}
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\label{app:qr_tabs}
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\def\arraystretch{1.2}
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\begin{table}[H]
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\centering
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\begin{tabu}{|[2pt]c|c|[2pt]c|c|[2pt]c|c|[2pt]}
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\tabucline[2pt]{-}
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Index & Char & Index & Char & Index & Char \\
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\hline
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0 & 0 & 15 & F & 30 & U \\
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\hline
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1 & 1 & 16 & G & 31 & V \\
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\hline
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2 & 2 & 17 & H & 32 & W \\
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\hline
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3 & 3 & 18 & I & 33 & X \\
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\hline
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4 & 4 & 19 & J & 34 & Y \\
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\hline
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5 & 5 & 20 & K & 35 & Z \\
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\hline
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6 & 6 & 21 & L & 36 & \emph{space} \\
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\hline
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7 & 7 & 22 & M & 37 & \$ \\
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\hline
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8 & 8 & 23 & N & 38 & \% \\
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\hline
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9 & 9 & 24 & O & 39 & * \\
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\hline
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10 & A & 25 & P & 40 & + \\
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\hline
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11 & B & 26 & Q & 41 & - \\
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\hline
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12 & C & 27 & R & 42 & . \\
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\hline
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13 & D & 28 & S & 43 & / \\
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\hline
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14 & E & 29 & T & 44 & : \\
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\tabucline[2pt]{-}
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\end{tabu}
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\caption{List of alphanumerical characters}
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\label{tab:qr_alphanum}
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\end{table}
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\def\arraystretch{1}
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\input{appendices/qr_versions}
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% Rotated headers
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% https://tex.stackexchange.com/a/98439
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\input{appendices/error_correction}
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\input{appendices/alignment}
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