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optionsutil: Switch to PostScript point

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Because that's what most people are probably thinking of.

But, more importantly, it's what *FreeType* assumes ;).
This commit is contained in:
NiLuJe
2024-09-13 01:45:34 +02:00
parent 9dfd4f949c
commit e47aeb77b7
1 changed files with 9 additions and 5 deletions
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14
frontend/ui/data/optionsutil.lua
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@@ -24,16 +24,20 @@ local function convertSizeTo(px, format)
if format == "px" then
return Screen:scaleBySize(px)
elseif format == "pt" then
format_factor = 1 * (2660 / 1000) -- see https://www.wikiwand.com/en/Metric_typographic_units
-- PostScript point,
-- c.f., https://en.wikipedia.org/wiki/Metric_typographic_units
-- & https://freetype.org/freetype2/docs/glyphs/glyphs-2.html
format_factor = 72
elseif format == "in" then
format_factor = 1 / 25.4
format_factor = 1
else
-- i.e., Metric
format_factor = 1
format_factor = 25.4
end
local display_dpi = Device:getDeviceScreenDPI() or Screen:getDPI() -- use device hardcoded dpi if available
return Screen:scaleBySize(px) / display_dpi * 25.4 * format_factor
-- We want the actual physical screen DPI if available, not a user override
local display_dpi = Device:getDeviceScreenDPI() or Screen:getDPI()
return Screen:scaleBySize(px) / display_dpi * format_factor
end
function optionsutil.formatFlexSize(value, unit)