kopia lustrzana https://github.com/peterhinch/micropython-samples
35 wiersze
1.4 KiB
Python
35 wiersze
1.4 KiB
Python
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class PyFont(object):
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def __init__(self, font, vert, horiz, nchars):
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self.bits_horiz = horiz
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self.bits_vert = vert
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div, mod = divmod(self.bits_vert, 8)
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self.bytes_vert = div if mod == 0 else div +1
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self.bytes_per_ch = self.bytes_vert * self.bits_horiz +1
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self.nchars = nchars
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self.font = font
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self.monospaced = False
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def render(self, ch): # enter with ord(ch)
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relch = ch -32
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if relch > self.nchars:
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raise ValueError('Illegal character')
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offset = relch * self.bytes_per_ch
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bv = self.bits_vert
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bh = self.bits_horiz if self.monospaced else self.font[offset] # Char width
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offset += 1
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for bit_vert in range(bv): # for each vertical line
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bytenum = bit_vert >> 3
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bit = 1 << (bit_vert & 0x07) # Faster than divmod
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for bit_horiz in range(bh): # horizontal line
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fontbyte = self.font[offset + self.bytes_vert * bit_horiz + bytenum]
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z = '*' if fontbyte & bit else ' '
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print(z, end='')
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# self.setpixelfast(self.char_x +bit_horiz, self.char_y +bit_vert, (fontbyte & bit) > 0)
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print()
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# self.char_x += bh # Somehow account for width of current char
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def test(self, s):
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for c in s:
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self.render(ord(c))
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