From 7e2f302909f541e4b8753724f7f39049941ca3ff Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Mon, 30 Oct 2017 01:48:36 +0100
Subject: [PATCH] DeviceSourceAPI: effectively delete the UI when changing the
 PluginInstanceGUI reference

---
 sdrgui/device/devicesourceapi.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sdrgui/device/devicesourceapi.cpp b/sdrgui/device/devicesourceapi.cpp
index 5c9601193..89f0e503c 100644
--- a/sdrgui/device/devicesourceapi.cpp
+++ b/sdrgui/device/devicesourceapi.cpp
@@ -176,6 +176,10 @@ void DeviceSourceAPI::setSampleSourcePluginInterface(PluginInterface *iface)
 
 void DeviceSourceAPI::setSampleSourcePluginInstanceGUI(PluginInstanceGUI *gui)
 {
+    if (m_sampleSourcePluginInstanceUI && (gui != m_sampleSourcePluginInstanceUI)) {
+        m_sampleSourcePluginInstanceUI->destroy();
+    }
+
     m_sampleSourcePluginInstanceUI = gui;
 }