Adafruit_CircuitPython_fram.../examples/framebuf_simpletest.py
2019-10-20 20:02:34 -04:00

49 lines
1.1 KiB
Python

import adafruit_framebuf
print("framebuf test will draw to the REPL")
WIDTH = 32
HEIGHT = 8
buffer = bytearray(round(WIDTH * HEIGHT / 8))
fb = adafruit_framebuf.FrameBuffer(buffer, WIDTH, HEIGHT,
buf_format=adafruit_framebuf.MVLSB)
# Ascii printer for very small framebufs!
def print_buffer(the_fb):
print("." * (the_fb.width+2))
for y in range(the_fb.height):
print(".", end='')
for x in range(the_fb.width):
if fb.pixel(x, y):
print("*", end='')
else:
print(" ", end='')
print(".")
print("." * (the_fb.width+2))
# Small function to clear the buffer
def clear_buffer():
for i, _ in enumerate(buffer):
buffer[i] = 0
print("Shapes test: ")
fb.pixel(3, 5, True)
fb.rect(0, 0, fb.width, fb.height, True)
fb.line(1, 1, fb.width-2, fb.height-2, True)
fb.fill_rect(25, 2, 2, 2, True)
print_buffer(fb)
print("Text test: ")
# empty
fb.fill_rect(0, 0, WIDTH, HEIGHT, False)
# write some text
fb.text("hello", 0, 0, True)
print_buffer(fb)
clear_buffer()
# write some larger text
fb.text("hello", 8, 0, True, size = 2)
print_buffer(fb)