From 8574e7e62a9675eeed2de06d3f8af08044fe5176 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Tue, 4 Nov 2014 18:00:30 +0100
Subject: nix crash on filter settings with no filter

---
 facetracknoir/ui.cpp | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/facetracknoir/ui.cpp b/facetracknoir/ui.cpp
index d1b8ed43..0a11de42 100644
--- a/facetracknoir/ui.cpp
+++ b/facetracknoir/ui.cpp
@@ -359,12 +359,16 @@ void MainWindow::showProtocolSettings() {
 }
 
 void MainWindow::showFilterSettings() {
-    auto dialog = mk_dialog<IFilterDialog>(current_filter());
+    if (libs.pFilter != nullptr)
+    {
+        auto dialog = mk_dialog<IFilterDialog>(current_filter());
 
-    if (dialog) {
-        pFilterDialog = dialog;
-        dialog->register_filter(libs.pFilter.get());
-        dialog->show();
+        if (dialog)
+        {
+            pFilterDialog = dialog;
+            dialog->register_filter(libs.pFilter.get());
+            dialog->show();
+        }
     }
 }
 
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