From 2a4e59fd6da212bcb0859f7ee8f3a554a07ae6a5 Mon Sep 17 00:00:00 2001
From: Mike Walters <mike@flomp.net>
Date: Thu, 2 Feb 2017 15:36:52 +0000
Subject: [PATCH] Limit tuner to within plot area on move

---
 tuner.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tuner.cpp b/tuner.cpp
index 9e9bfa7..521ee55 100644
--- a/tuner.cpp
+++ b/tuner.cpp
@@ -50,6 +50,9 @@ void Tuner::cursorMoved()
         // Limit deviation range to half of total BW (either side of centre)
         auto deviationRange = range_t<int>{2, height / 2};
         _deviation = deviationRange.clip(std::abs(sender->pos() - cfCursor->pos()));
+    } else {
+        auto cfRange = range_t<int>{_deviation, height - _deviation};
+        sender->setPos(cfRange.clip(sender->pos()));
     }
 
     updateCursors();