84 lines
2.6 KiB
Python
Executable file
84 lines
2.6 KiB
Python
Executable file
# SPDX-FileCopyrightText: Copyright (c) 2023 Erin St. Blaine for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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from random import randint
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import board
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import neopixel
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import fontio
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from adafruit_display_text.bitmap_label import Label
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from adafruit_bitmap_font import bitmap_font
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from displayio import Bitmap
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from rainbowio import colorwheel
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tom_thumb = bitmap_font.load_font("tom-thumb.pcf", Bitmap)
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_glyph_keys = ['bitmap', 'tile_index', 'width', 'height', 'dx', 'dy', 'shift_x', 'shift_y']
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def patch_glyph(base, **kw):
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d = {}
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for k in _glyph_keys:
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d[k] = kw.get(k, getattr(base, k))
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return fontio.Glyph(**d)
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class PatchedFont:
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def __init__(self, base_font, patches):
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self.base_font = base_font
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self.patches = patches
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def get_glyph(self, glyph):
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g = self.base_font.get_glyph(glyph)
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patch = self.patches.get(glyph)
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if patch is not None:
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# print("patching", repr(chr(glyph)), g)
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g = patch_glyph(g, **patch)
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# print("patched", g)
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return g
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def get_bounding_box(self):
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return self.base_font.get_bounding_box()
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font = PatchedFont(tom_thumb,
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{32: {'shift_x': 1, 'dx': 0},
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105: {'dx': 0, 'shift_x': 2},
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33: {'dx': 0, 'shift_x': 2},
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})
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# List of text strings
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text_strings = [" love bun ", " dear me ", " my bear ",
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" my my ", " you are babe "]
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# Create a label object
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label = Label(text="text", font=font)
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bitmap = label.bitmap
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heart_bitmap = [
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0, 1, 1, 0, 0,
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1, 1, 1, 1, 0,
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0, 1, 1, 1, 1,
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1, 1, 1, 1, 0,
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0, 1, 1, 0, 0
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]
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pixels = neopixel.NeoPixel(board.A1, 5*5, brightness=.08, auto_write=False)
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while True:
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for hue in range(0, 255, 3):
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color = colorwheel(hue)
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pixels[:] = [pixel * color for pixel in heart_bitmap]
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pixels.show()
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time.sleep(.05)
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hue = 0
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string_index = randint(0, 4)
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label.text = text_strings[string_index]
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bitmap = label.bitmap
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print(string_index)
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for i in range(bitmap.width):
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# Use a rainbow of colors, shifting each column of pixels
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hue = hue + 7
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if hue >= 256:
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hue = hue - 256
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color = colorwheel(hue)
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# Scoot the old text left by 1 pixel
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pixels[:20] = pixels[5:]
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# Draw in the next line of text
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for y in range(5):
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# Select black or color depending on the bitmap pixel
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pixels[20+y] = color * bitmap[i,y]
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pixels.show()
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time.sleep(.2)
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