From ce99361cc0260f9672ebfe92918f2a9727a6db3d Mon Sep 17 00:00:00 2001
From: Marc Mutz <marc.mutz@kdab.com>
Date: Sun, 26 May 2019 17:23:42 +0200
Subject: [PATCH] QEasingCurve: fix missing copy() override
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TCBEase is-a BezierEase, but overrides value(). It only performs additional
checks and then calls the base class' implementation, but it feels wrong,
like a bug waiting to manifest itself, that slicing should occur on cloning
a TCBEase.

Fix by adding the missing reimplmentation.

Change-Id: I2524f51fec1850ff36ed706bc79e9592734d8680
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
---
 src/corelib/tools/qeasingcurve.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp
index 9169b5c7f13..2ae63fe135d 100644
--- a/src/corelib/tools/qeasingcurve.cpp
+++ b/src/corelib/tools/qeasingcurve.cpp
@@ -907,6 +907,10 @@ struct TCBEase : public BezierEase
         return BezierEase::value(x);
     }
 
+    QEasingCurveFunction *copy() const override
+    {
+        return new TCBEase{*this};
+    }
 };
 
 struct ElasticEase : public QEasingCurveFunction