DolphinQt: Rework TAS input threading, part 2 (analog inputs)

Source/Core/DolphinQt/TAS/TASSpinBox.cpp

@@ -0,0 +1,33 @@
+// Copyright 2019 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "DolphinQt/TAS/TASSpinBox.h"
+
+#include "DolphinQt/QtUtils/QueueOnObject.h"
+
+TASSpinBox::TASSpinBox(QWidget* parent) : QSpinBox(parent)
+{
+  connect(this, QOverload<int>::of(&TASSpinBox::valueChanged), this, &TASSpinBox::OnUIValueChanged);
+}
+
+int TASSpinBox::GetValue() const
+{
+  return m_state.GetValue();
+}
+
+void TASSpinBox::OnControllerValueChanged(int new_value)
+{
+  if (m_state.OnControllerValueChanged(static_cast<u16>(new_value)))
+    QueueOnObject(this, &TASSpinBox::ApplyControllerValueChange);
+}
+
+void TASSpinBox::OnUIValueChanged(int new_value)
+{
+  m_state.OnUIValueChanged(static_cast<u16>(new_value));
+}
+
+void TASSpinBox::ApplyControllerValueChange()
+{
+  const QSignalBlocker blocker(this);
+  setValue(m_state.ApplyControllerValueChange());
+}