simplewriter.py

from framebuf import FrameBuffer, MONO_HMSB, MONO_HLSB

# currently only works for monochrome (fg, bg in {-1, 0, 1})
class KeyedPalette(FrameBuffer):
	def __init__(self, fg=0, bg=-1):
		buf = bytearray(1)
		if fg == -1:
			self.key = fg = bg^1
		elif bg == -1:
			self.key = bg = fg^1
		else:
			self.key = -1
		buf[0] = (fg << 1) | bg
		super().__init__(buf, 2, 1, MONO_HMSB)

def write(fb, s, x, y, font, palette=None):
	for char in s:
		glyph, char_height, char_width = font.get_ch(char)
		if glyph:
			fbc = FrameBuffer(bytearray(glyph), char_width, char_height, MONO_HMSB if font.reverse() else MONO_HLSB)
			fb.blit(fbc, x, y, getattr(palette, 'key', -1), palette)
			x += char_width

def measure(s, font):
	w = 0
	for char in s:
		glyph, h, cw = font.get_ch(char)
		w += cw
	return w, h

There is a period . where there should be a comma , in this line:

simplewriter.write(oled,'Hello World!', 0.20, freesans20)

If the fonts that come with nano-gui don’t include the ° glyph, you’ll have to make your own that does using font-to-py.py. This utility is not meant for running on the microcontroller, but on your PC. See the instructions.

By the way, see https://github.com/orgs/micropython/discussions/9111 for how to post code in a more readable way.

You're perfectly right: there was a typo and now it works quite fine. Thanks for your patience and apologies for my bizarre code formatting. Have a nice evening

…

Il 21/04/2024 18:43 CEST Christian Walther ***@***.***> ha scritto: @cwalther commented on this gist. --------------------------------------------- There is a period . where there should be a comma , in this line: simplewriter.write(oled,'Hello World!', 0.20, freesans20) If the fonts that come with nano-gui don’t include the ° glyph, you’ll have to make your own that does using font-to-py.py. This utility is not meant for running on the microcontroller, but on your PC. See the instructions https://github.com/peterhinch/micropython-font-to-py#readme. By the way, see micropython/micropython#9111 for how to post code in a more readable way. — Reply to this email directly, view it on GitHub https://gist.github.com/cwalther/fb2b2ca00c59b0577089fbdc4d7e0a88#gistcomment-5031336 or unsubscribe https://github.com/notifications/unsubscribe-auth/A5BIYK22DA27QHFDKZXMSK3Y6PUCDBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDUOJ2WLJDOMFWWLO3UNBZGKYLEL5YGC4TUNFRWS4DBNZ2F6YLDORUXM2LUPGBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVEYTEOJXGY2TAOJTU52HE2LHM5SXFJTDOJSWC5DF. You are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

Glad to help!