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Please please please let this dpi scaling hack work

py3.10_support
Tyler Goodlet 2021-10-22 12:13:38 -04:00
parent 8b12329479
commit e178c18745
1 changed files with 17 additions and 9 deletions
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20
piker/ui/_style.py
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@ -110,7 +110,7 @@ class DpiAwareFont:
mx_dpi = max(pdpi, ldpi)
mn_dpi = min(pdpi, ldpi)
scale = round(ldpi/pdpi)
scale = round(ldpi/pdpi, ndigits=2)
if mx_dpi <= 97: # for low dpi use larger font sizes
inches = _font_sizes['lo'][self._font_size]
@ -121,20 +121,28 @@ class DpiAwareFont:
dpi = mn_dpi
# dpi is likely somewhat scaled down so use slightly larger font size
if scale > 1 and self._font_size:
if scale >= 1.1 and self._font_size:
if 1.2 <= scale:
inches *= (1 / scale) * 1.0616
if scale < 1.4 or scale >= 1.5:
# TODO: this denominator should probably be determined from
# relative aspect ratios or something?
inches = inches * (1 + 6/16)
if scale < 2:
inches *= (1 / scale)
dpi = mx_dpi
log.info(f'USING MAX DPI {dpi}')
# TODO: we might want to fiddle with incrementing font size by
# +1 for the edge cases above. it seems doing it via scaling is
# always going to hit that error in range mapping from inches:
# float to px size: int.
self._font_inches = inches
font_size = math.floor(inches * dpi)
log.info(
f"\nscreen:{screen.name()}"
f"screen:{screen.name()}]\n"
f"pDPI: {pdpi}, lDPI: {ldpi}, scale: {scale}\n"
f"\nOur best guess font size is {font_size}\n"
)