From 56a5bb7594471b08af43ebda8c8df2ba9bc9037a Mon Sep 17 00:00:00 2001
From: Dusk-92 <romain.thomas92@proton.me>
Date: Sat, 5 Sep 2026 19:02:00 +0200
Subject: [PATCH] Limit Metric Range scans to visible tooltip lines

---
 mods/metric-range.lua | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/mods/metric-range.lua b/mods/metric-range.lua
index c68d35c..1860664 100644
--- a/mods/metric-range.lua
+++ b/mods/metric-range.lua
@@ -31,7 +31,15 @@ module.enable = function(self)
     local name = tooltip:GetName()
     if not name then return end
 
-    for i = 1, 30 do
+    -- GameTooltip-style frames expose NumLines() in Vanilla. Only inspect the
+    -- lines that actually exist instead of probing 30 left/right font strings
+    -- on every tooltip show. Keep the historical 30-line ceiling as fallback.
+    local lines = 30
+    if tooltip.NumLines then
+      lines = math.min(tooltip:NumLines() or 0, 30)
+    end
+
+    for i = 1, lines do
       local left = _G[name .. "TextLeft" .. i]
       if left then
         local old = left:GetText()