From a75e8fcde56fb8f2c255eeb96d1b98206aada1c4 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Thu, 26 Mar 2020 00:34:01 +1100
Subject: [PATCH] timebasedwidget: don't update the viewer if it's the same

Minor optimization, since changing the viewer can be a complex process it should
only be done if absolutely necessary.
---
 app/widget/timebased/timebased.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/widget/timebased/timebased.cpp b/app/widget/timebased/timebased.cpp
index cbb859576..c17b3cbdb 100644
--- a/app/widget/timebased/timebased.cpp
+++ b/app/widget/timebased/timebased.cpp
@@ -48,6 +48,10 @@ ViewerOutput *TimeBasedWidget::GetConnectedNode() const
 
 void TimeBasedWidget::ConnectViewerNode(ViewerOutput *node)
 {
+  if (viewer_node_ == node) {
+    return;
+  }
+
   if (viewer_node_) {
     DisconnectNodeInternal(viewer_node_);