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`drawwhitespace`: Invalidate cache on config changes

This commit is contained in:
Guldoman 2022-06-16 00:03:25 +02:00
parent f38723ea46
commit 2d3abd2533
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GPG Key ID: EA928C8BDA1A8825
1 changed files with 38 additions and 3 deletions
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41
data/plugins/drawwhitespace.lua
View File

@ -97,13 +97,48 @@ config.plugins.drawwhitespace = common.merge({
}, config.plugins.drawwhitespace)
local ws_cache = setmetatable({}, { __mode = "k" })
local ws_cache
local cached_settings
local function reset_cache()
ws_cache = setmetatable({}, { __mode = "k" })
local settings = config.plugins.drawwhitespace
cached_settings = {
show_leading = settings.show_leading,
show_trailing = settings.show_trailing,
show_middle = settings.show_middle,
show_middle_min = settings.show_middle_min,
color = settings.color,
leading_color = settings.leading_color,
middle_color = settings.middle_color,
trailing_color = settings.trailing_color,
substitutions = settings.substitutions,
}
end
reset_cache()
local function reset_cache_if_needed()
local settings = config.plugins.drawwhitespace
if
not ws_cache or
cached_settings.show_leading ~= settings.show_leading
or cached_settings.show_trailing ~= settings.show_trailing
or cached_settings.show_middle ~= settings.show_middle
or cached_settings.show_middle_min ~= settings.show_middle_min
or cached_settings.color ~= settings.color
or cached_settings.leading_color ~= settings.leading_color
or cached_settings.middle_color ~= settings.middle_color
or cached_settings.trailing_color ~= settings.trailing_color
-- we assume that the entire table changes
or cached_settings.substitutions ~= settings.substitutions
then
reset_cache()
end
end
-- Move cache to make space for new lines
local prev_insert_notify = Highlighter.insert_notify
function Highlighter:insert_notify(line, n, ...)
prev_insert_notify(self, line, n, ...)
local blanks = { }
if not ws_cache[self] then
ws_cache[self] = {}
end
@ -160,8 +195,8 @@ function DocView:draw_line_text(idx, x, y)
end
local font = (self:get_font() or style.syntax_fonts["whitespace"] or style.syntax_fonts["comment"])
local ty = y + self:get_line_text_y_offset()
reset_cache_if_needed()
if
not ws_cache[self.doc.highlighter]
or ws_cache[self.doc.highlighter].font ~= font