2 files changed, 23 insertions, 28 deletions

diff --git a/options/tie.cpp b/options/tie.cpp
index 337843b1..493ff551 100644
--- a/options/tie.cpp
+++ b/options/tie.cpp
@@ -125,19 +125,30 @@ void tie_setting(value<slider_value>& v, QSlider* w)
 
     value_::connect(w, &QSlider::valueChanged, &v, [=, &v](int pos)
     {
-        int q_min = w->minimum();
-        int q_max = w->maximum();
-        v = v->update_from_slider(pos, q_min, q_max);
+        run_in_thread_sync(w, [&]()
+        {
+            const int q_min = w->minimum();
+            const int q_max = w->maximum();
+            v = v().update_from_slider(pos, q_min, q_max);
+            w->setValue(v().to_slider_pos(q_min, q_max));
+        });
     },
     v.DIRECT_CONNTYPE);
 
-    value_::connect(&v, value_::value_changed<slider_value>(), w, [=, &v](double) {
-        const int q_min = w->minimum();
-        const int q_max = w->maximum();
-        const int pos = v->to_slider_pos(q_min, q_max);
-        w->setValue(pos);
+    value_::connect(&v,
+                    value_::value_changed<slider_value>(),
+                    w,
+                    [=, &v](double) {
+        run_in_thread_sync(w, [=, &v]()
+        {
+            const int q_min = w->minimum();
+            const int q_max = w->maximum();
+            const int pos = v->to_slider_pos(q_min, q_max);
+            v = v->update_from_slider(pos, q_min, q_max);
+            w->setValue(pos);
+        });
     },
-    v.SAFE_CONNTYPE);
+    v.DIRECT_CONNTYPE);
 }
 
 } // ns options
diff --git a/options/value.hpp b/options/value.hpp
index 849611d3..10903b19 100644
--- a/options/value.hpp
+++ b/options/value.hpp
@@ -39,9 +39,7 @@ template<typename t>
 class value final : public value_
 {
     static_assert(std::is_same_v<t, remove_cvref_t<t>>);
-    mutable QMutex mtx;
     const t def;
-    mutable t cached_value = def;
     using traits = detail::value_traits<t>;
 
     never_inline
@@ -97,24 +95,10 @@ public:
     never_inline
     void notify() const override
     {
-        if (is_null())
-            return;
-
-        auto x = get();
-
-        bool b = progn(
-            QMutexLocker l(&mtx);
-            if (!traits::is_equal(x, cached_value))
-            {
-                cached_value = x;
-                return true;
-            }
-            return false;
-        );
-
-        if (b) {
+        if (!is_null())
+        {
             maybe_trace(true);
-            emit valueChanged(traits::storage_from_value(x));
+            emit valueChanged(traits::storage_from_value(get()));
             maybe_trace(false);
         }
     }