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Merge pull request #481 from Guldoman/h_scroll_size_cache 

Add a simple cache to `DocView:get_h_scrollable_size`
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Adam 2021-09-02 20:01:06 -04:00 committed by GitHub
parent f18629ab64 e559afaefc
commit a0508103b1
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1 changed files with 11 additions and 4 deletions
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9
data/core/docview.lua
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@ -102,11 +102,18 @@ function DocView:get_scrollable_size()
end end
function DocView:get_h_scrollable_size() function DocView:get_h_scrollable_size()
local doc_change_id = self.doc:get_change_id()
if self.last_doc_change_id ~= doc_change_id then
self.last_doc_change_id = doc_change_id
local xmargin = 3 * self:get_font():get_width(' ') -- from DocView:scroll_to_make_visible local xmargin = 3 * self:get_font():get_width(' ') -- from DocView:scroll_to_make_visible
-- TODO: make Doc calculate the real longest line in pixels, not in characters,
-- as the current implementation only works for monospace fonts
local long_line = next(self.doc.long_lines.line_numbers) or 1 local long_line = next(self.doc.long_lines.line_numbers) or 1
return self:get_col_x_offset(long_line, self.doc.long_lines.length) self.h_scrollable_size = self:get_col_x_offset(long_line, self.doc.long_lines.length)
+ self:get_gutter_width() + xmargin + self:get_gutter_width() + xmargin
end end
return self.h_scrollable_size
end
function DocView:get_font() function DocView:get_font()
return style[self.font] return style[self.font]