Merge pull request #481 from Guldoman/h_scroll_size_cache
Add a simple cache to `DocView:get_h_scrollable_size`
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commit
a0508103b1
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@ -102,10 +102,17 @@ function DocView:get_scrollable_size()
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end
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end
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function DocView:get_h_scrollable_size()
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function DocView:get_h_scrollable_size()
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local doc_change_id = self.doc:get_change_id()
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if self.last_doc_change_id ~= doc_change_id then
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self.last_doc_change_id = doc_change_id
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local xmargin = 3 * self:get_font():get_width(' ') -- from DocView:scroll_to_make_visible
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local xmargin = 3 * self:get_font():get_width(' ') -- from DocView:scroll_to_make_visible
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-- TODO: make Doc calculate the real longest line in pixels, not in characters,
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-- as the current implementation only works for monospace fonts
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local long_line = next(self.doc.long_lines.line_numbers) or 1
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local long_line = next(self.doc.long_lines.line_numbers) or 1
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return self:get_col_x_offset(long_line, self.doc.long_lines.length)
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self.h_scrollable_size = self:get_col_x_offset(long_line, self.doc.long_lines.length)
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+ self:get_gutter_width() + xmargin
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+ self:get_gutter_width() + xmargin
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end
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return self.h_scrollable_size
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end
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end
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function DocView:get_font()
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function DocView:get_font()
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