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from PIL import ImageFont, Image, ImageDraw, ImageOps
from domestic.utility.write_error import *
def text_to_image(text):
PIXEL_ON = 255
PIXEL_OFF = 1
grayscale = 'L'
lines = tuple(l.rstrip() for l in text.split('\n'))
large_font = 40
font_path = 'cour.ttf'
try:
font = ImageFont.truetype(font_path, size=large_font)
except IOError as err:
write_error(err)
font = ImageFont.load_default()
pt2px = lambda pt: int(round(pt * 96.0 / 72))
max_width_line = max(lines, key=lambda s: font.getsize(s)[0])
test_string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
max_height = pt2px(font.getsize(test_string)[1])
max_width = pt2px(font.getsize(max_width_line)[0])
height = max_height * len(lines)
width = int(round(max_width + 40))
image = Image.new(grayscale, (width, height), color=PIXEL_OFF)
draw = ImageDraw.Draw(image)
vertical_position = 5
horizontal_position = 5
line_spacing = int(round(max_height * 0.8))
for line in lines:
draw.text((horizontal_position, vertical_position), line, fill=PIXEL_ON, font=font)
vertical_position += line_spacing
c_box = ImageOps.invert(image).getbbox()
image = image.crop(c_box)
return image
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