From e955cff24f26035027007ab25383f63bd53a3275 Mon Sep 17 00:00:00 2001
From: Jordan Sherer <jordan@widefido.com>
Date: Sat, 21 Jul 2018 02:31:30 -0400
Subject: [PATCH] Make sure selected call exists before using it

---
 mainwindow.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/mainwindow.cpp b/mainwindow.cpp
index eef235f..1191aed 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -6884,9 +6884,11 @@ void MainWindow::on_snrMacroButton_clicked(){
     auto items = ui->tableWidgetCalls->selectedItems();
     if(!items.isEmpty()){
         QString selectedCall = items.first()->text();
-        int snr = m_callActivity[selectedCall].snr;
-        addMessageText(Varicode::formatSNR(snr));
-        return;
+        if(m_callActivity.contains(selectedCall)){
+            int snr = m_callActivity[selectedCall].snr;
+            addMessageText(Varicode::formatSNR(snr));
+            return;
+        }
     }
 
     int offset = currentFreq();