From 6649da7f99a0d35ee2de468e548f54bcdb63ac73 Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Thu, 8 Oct 2020 07:51:31 +0200
Subject: [PATCH] Scope: fixed one shot trigger: Fixes #650

---
 sdrgui/dsp/scopevis.cpp | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/sdrgui/dsp/scopevis.cpp b/sdrgui/dsp/scopevis.cpp
index 9bfffbd71..a2ffa1856 100644
--- a/sdrgui/dsp/scopevis.cpp
+++ b/sdrgui/dsp/scopevis.cpp
@@ -224,6 +224,13 @@ void ScopeVis::feed(const SampleVector::const_iterator& cbegin, const SampleVect
         return;
     }
 
+    if (m_triggerWaitForReset)
+    {
+        m_triggerLocation = 0;
+        m_mutex.unlock();
+        return;
+    }
+
     if (m_freeRun) {
         m_triggerLocation = end - cbegin;
     }
@@ -233,9 +240,6 @@ void ScopeVis::feed(const SampleVector::const_iterator& cbegin, const SampleVect
     else if (m_triggerState == TriggerUntriggered) {
         m_triggerLocation = 0;
     }
-    else if (m_triggerWaitForReset) {
-        m_triggerLocation = 0;
-    }
     else {
         m_triggerLocation = end - cbegin;
     }
@@ -858,11 +862,15 @@ bool ScopeVis::handleMessage(const Message& message)
     }
     else if (MsgScopeVisNGOneShot::match(message))
     {
-        qDebug() << "ScopeVis::handleMessage: MsgScopeVisNGOneShot";
         MsgScopeVisNGOneShot& conf = (MsgScopeVisNGOneShot&) message;
         bool oneShot = conf.getOneShot();
+        qDebug() << "ScopeVis::handleMessage: MsgScopeVisNGOneShot: oneShot:" << oneShot;
         m_triggerOneShot = oneShot;
-        if (m_triggerWaitForReset && !oneShot) m_triggerWaitForReset = false;
+
+        if (m_triggerWaitForReset && !oneShot) {
+            m_triggerWaitForReset = false;
+        }
+
         return true;
     }
     else if (MsgScopeVisNGMemoryTrace::match(message))