disabled updates as a test

src/debug/AssertInGuiThread.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <QCoreApplication>
+#include <QThread>
+#include <cassert>
+
+namespace AB_NAMESPACE {
+
+static bool isGuiThread()
+{
+    return QCoreApplication::instance()->thread() == QThread::currentThread();
+}
+
+static void assertInGuiThread()
+{
+#ifdef _DEBUG
+    assert(isGuiThread());
+#endif
+}
+
+}  // namespace AB_NAMESPACE