poemOrg.py

# (c) 2016  Mario Cruz
# please credit me if you modify and/or use this code
# not for commercial use
# lots of help from Giles Booth @blogmywiki
from random import *
from  printer import *
from PIL import Image
import os
import glob
import json

def random_poem():
    path = os.path.join(os.getcwd(), "poems/*.json")
    list = glob.glob(path)
    if (0 < len(list)):
        idx = random.randrange(0, len(list))
        with open(list[idx]) as f:
            return json.loads(f.read())
    else:
        return None

def print_poem(p, poem):
    p.bold()
    p.inverse()
    p.print_text(poem['title'])
    p.linefeed()
    p.bold(False)
    p.inverse(False)
    p.justify("L")
    p.print_text("\n".join(poem['text']))
    p.linefeed()
    p.justify("R")
    p.print_text(poem['author'])
    p.justify("L")
    p.linefeed()

    i = Image.open("o.png")
    data = list(i.getdata())
    w, h = i.size
    p.print_bitmap(data, w, h, True)
    p.linefeed()

    #FONT B IS THE TINY FONT
    p.font_b()
    p.print_text("O, Miami, Random Poems (c) 2016 @mariocruz Code 4 Miami")
    p.font_b(False)
    p.linefeed()
    p.linefeed()
    p.linefeed()

# Run the program
if __name__ == "__main__":
    p = printer.ThermalPrinter(serialport="/dev/ttyAMA0")
    poem = random_poem()
    if (poem is not None):
        print_poem(p, poem)