Add FPS counter

StatusBar.qml

@@ -39,6 +39,13 @@ Pane {
             }
         }
 
+        Label {
+            Layout.fillWidth: true
+            Layout.fillHeight: true
+
+            text: __controller.performance + ' FPS'
+        }
+
         Button {
             Layout.fillHeight: true
 

dmxcontroller.cpp

@@ -149,6 +149,8 @@ void DmxController::sendDmxBuffer()
     if (m_lastInfo.msecsTo(now) >= 1000)
     {
         qInfo("%i per second", m_counter);
+        m_lastCounter = m_counter;
+        emit performanceChanged(m_counter);
         m_counter = 0;
         m_lastInfo = now;
     }

dmxcontroller.h

@@ -11,6 +11,7 @@
 class DmxController : public QObject
 {
     Q_OBJECT
+    Q_PROPERTY(int performance READ performance NOTIFY performanceChanged)
 
 public:
     explicit DmxController(QObject *parent = nullptr);
@@ -24,6 +25,11 @@ public:
 
     QReadWriteLock &projectLock() { return m_projectLock; }
 
+    int performance() const { return m_lastCounter; }
+
+signals:
+    void performanceChanged(int performance);
+
 protected:
     friend class DmxControllerThread;
 
@@ -41,4 +47,5 @@ private:
 
     QDateTime m_lastInfo;
     int m_counter;
+    std::atomic<int> m_lastCounter;
 };