From 8b4b9d396b60f023065d8ff0f548292c49f32f02 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Thu, 6 Feb 2020 10:31:17 +0100
Subject: [PATCH] magnifier: Apply scale factor to crosshair length

On hidpi displays the length is double as advertised, make it match
the advertised length.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/984
---
 js/ui/magnifier.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/js/ui/magnifier.js b/js/ui/magnifier.js
index d7d3506a5..af6c2567d 100644
--- a/js/ui/magnifier.js
+++ b/js/ui/magnifier.js
@@ -430,8 +430,10 @@ var Magnifier = class Magnifier {
      *     lines making up the crosshairs.
      */
     setCrosshairsLength(length) {
-        if (this._crossHairs)
-            this._crossHairs.setLength(length);
+        if (this._crossHairs) {
+            let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
+            this._crossHairs.setLength(length / scaleFactor);
+        }
     }
 
     /**