Add tray icon

AdaptiveBrightness/AdaptiveBrightness.cpp

@@ -3,4 +3,10 @@
 AdaptiveBrightness::AdaptiveBrightness(QWidget* parent) : QMainWindow(parent)
 {
     m_ui.setupUi(this);
+
+    m_icon = std::make_unique<QIcon>(":/AdaptiveBrightness/resources/brightness_system.ico");
+    m_trayIcon = new QSystemTrayIcon(this);
+
+    m_trayIcon->setIcon(*m_icon);
+    m_trayIcon->show();
 }

AdaptiveBrightness/AdaptiveBrightness.hpp

@@ -1,6 +1,10 @@
 #pragma once
 
-#include <QtWidgets/QMainWindow>
+#include <memory>
+
+#include <QIcon>
+#include <QMainWindow>
+#include <QSystemTrayIcon>
 
 #include "ui_AdaptiveBrightness.h"
 
@@ -12,4 +16,7 @@ class AdaptiveBrightness : public QMainWindow {
 
   private:
     Ui::AdaptiveBrightnessClass m_ui;
+
+    std::unique_ptr<QIcon> m_icon;
+    QSystemTrayIcon* m_trayIcon;
 };