only render visible part of screen

nvimdev · May 6, 2024 · b09ef87 · b09ef87
1 parent deb3a2b
commit b09ef87
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lua/indentmini/init.lua b/lua/indentmini/init.lua
@@ -117,6 +117,11 @@ local function on_line(_, _, bufnr, row)
         if erow < 1 then
           return
         end
+        -- only render visible part of screen
+        local toprow = vim.fn.line('w0') - 2
+        local botrow = vim.fn.line('w$') - 1
+        srow = math.max(math.max(toprow, srow), 0)
+        erow = math.max(math.min(botrow, erow), api.nvim_buf_line_count(data.buf) - 1)
         local level = math.floor(curindent / shiftw)
         for i = srow + 1, erow, 1 do
           api.nvim_set_hl(