From 75f7bbd2f964b6af6930f421a21134b0bea31529 Mon Sep 17 00:00:00 2001
From: Ellpeck <megamaximal@gmail.com>
Date: Mon, 12 Aug 2019 19:46:43 +0200
Subject: [PATCH] made scroll bars only work when the mouse is in their parent

---
 MLEM.Ui/Elements/ScrollBar.cs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/MLEM.Ui/Elements/ScrollBar.cs b/MLEM.Ui/Elements/ScrollBar.cs
index 8121f23..3463c07 100644
--- a/MLEM.Ui/Elements/ScrollBar.cs
+++ b/MLEM.Ui/Elements/ScrollBar.cs
@@ -43,9 +43,12 @@ namespace MLEM.Ui.Elements {
 
         public override void Update(GameTime time) {
             base.Update(time);
-            var scroll = this.Input.LastScrollWheel - this.Input.ScrollWheel;
-            if (scroll != 0)
-                this.CurrentValue += this.StepPerScroll * Math.Sign(scroll);
+            var moused = this.System.MousedElement;
+            if (moused == this.Parent || moused?.Parent == this.Parent) {
+                var scroll = this.Input.LastScrollWheel - this.Input.ScrollWheel;
+                if (scroll != 0)
+                    this.CurrentValue += this.StepPerScroll * Math.Sign(scroll);
+            }
         }
 
         public override void Draw(GameTime time, SpriteBatch batch, float alpha, Point offset) {