From 3967899a2a81e91bd6b9c0a4ef7fd2ed9babd054 Mon Sep 17 00:00:00 2001
From: Sergiusz Bazanski <q3k@q3k.org>
Date: Fri, 27 Jul 2018 02:17:04 +0100
Subject: gui: don't keep stale hover selections

---
 gui/fpgaviewwidget.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'gui/fpgaviewwidget.cc')

diff --git a/gui/fpgaviewwidget.cc b/gui/fpgaviewwidget.cc
index 5d7cb8ed..6dd911f4 100644
--- a/gui/fpgaviewwidget.cc
+++ b/gui/fpgaviewwidget.cc
@@ -612,8 +612,14 @@ void FPGAViewWidget::mouseMoveEvent(QMouseEvent *event)
 
     auto world = mouseToWorldCoordinates(event->x(), event->y());
     auto closestOr = pickElement(world.x(), world.y());
-    if (!closestOr)
+    // No elements? No decal.
+    if (!closestOr) {
+        QMutexLocker locked(&rendererArgsLock_);
+        rendererArgs_->hoveredDecal = DecalXY();
+        rendererArgs_->changed = true;
+        pokeRenderer();
         return;
+    }
 
     auto closest = closestOr.value();
 
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