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Avoid calculating column position offset per-char

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Guldoman 2021-09-03 19:59:10 +02:00
parent 8866a5dddf
commit aa3ecd9555
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GPG Key ID: C08A498EC7F1AFDD
1 changed files with 5 additions and 7 deletions
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12
data/core/docview.lua
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@ -161,15 +161,13 @@ function DocView:get_col_x_offset(line, col)
local xoffset = 0
for _, type, text in self.doc.highlighter:each_token(line) do
local font = style.syntax_fonts[type] or default_font
for char in common.utf8_chars(text) do
if column == col then
return xoffset / font:subpixel_scale()
end
xoffset = xoffset + font:get_width_subpixel(char)
column = column + #char
local remainder = math.min(col - column, #text)
xoffset = xoffset + font:get_width_subpixel(string.sub(text, 1, remainder))
column = column + remainder
if column == col then
return xoffset / font:subpixel_scale()
end
end
return xoffset / default_font:subpixel_scale()
end