From 2e98fd0b173f7b6e191f337d613274d7b73e61d2 Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Sat, 19 Jun 2021 12:38:20 +0200
Subject: [PATCH] Scope: reset trigger and traces samples index when trace size
 changes. Fixes #927

---
 sdrbase/dsp/scopevis.cpp | 2 ++
 sdrbase/dsp/scopevis.h   | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/sdrbase/dsp/scopevis.cpp b/sdrbase/dsp/scopevis.cpp
index ac2c3cfa8..ca9775cd0 100644
--- a/sdrbase/dsp/scopevis.cpp
+++ b/sdrbase/dsp/scopevis.cpp
@@ -158,6 +158,8 @@ void ScopeVis::configure(
     {
         setTraceSize(traceSize);
         m_settings.m_traceLen = traceSize;
+        m_triggerState = TriggerUntriggered;
+        m_traces.resetControls();
     }
 
     if (m_timeBase != timeBase)
diff --git a/sdrbase/dsp/scopevis.h b/sdrbase/dsp/scopevis.h
index 41266fc69..e6d0377c9 100644
--- a/sdrbase/dsp/scopevis.h
+++ b/sdrbase/dsp/scopevis.h
@@ -1059,6 +1059,13 @@ private:
             }
         }
 
+        void resetControls()
+        {
+            for (auto traceControl : m_tracesControl) {
+                traceControl->reset();
+            }
+        }
+
     private:
         float *m_x0;
         float *m_x1;