Luma Core Virtual Issue Gist

import time

from PIL import ImageFont

from luma.core.interface.serial import spi, noop
from luma.core.render import canvas
from luma.core.virtual import viewport
from luma.led_matrix.device import max7219

font = ImageFont.truetype("pixelmix.ttf", 8)

serial = spi(port=0, device=0, gpio=noop())
device = max7219(serial, cascaded=4, block_orientation=-90)

virtual = viewport(device, width=100, height=8)

text = "Hello World"

while True:
    with canvas(virtual) as draw:
        draw.text((32,0), str(text), fill="white", font=font)
        width,height = font.font.getsize(text)
        print(width, height, width[0])

    for offset in range(100):
        print(f'Offset: {offset}')
        virtual.set_position((offset,0))
        time.sleep(.1)