From 3942c5279e36589cf327a375d24afc6949cf6576 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Tue, 19 Sep 2017 13:57:12 +0200
Subject: [PATCH] don't recreate a null pixmap

if we already have a null pixmap, don't recreate a new one

this saves some pixmap ceation on destructors
reviewed-by:davidedmundson
---
 src/plasma/framesvg.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/plasma/framesvg.cpp b/src/plasma/framesvg.cpp
index 78a4899b8..65af061fc 100644
--- a/src/plasma/framesvg.cpp
+++ b/src/plasma/framesvg.cpp
@@ -837,7 +837,9 @@ void FrameSvgPrivate::updateSizes(FrameData *frame) const
 
     QSize s = q->size();
     q->resize();
-    frame->cachedBackground = QPixmap();
+    if (!frame->cachedBackground.isNull()) {
+        frame->cachedBackground = QPixmap();
+    }
 
     //This has the same size regardless the border is enabled or not
     frame->fixedTopHeight = q->elementSize(frame->prefix % QLatin1String("top")).height();