Context menu for tray icon + switching of main window.

src/core/systemfactory.cpp

@@ -88,15 +88,16 @@ bool SystemFactory::setAutoStartStatus(const AutoStartStatus &new_status) {
   }
 
 #if defined(Q_OS_WIN)
-  QSettings registy_key("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run",
+  QSettings registry_key("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run",
                          QSettings::NativeFormat);
   switch (new_status) {
     case SystemFactory::Enabled:
-      registy_key.setValue(APP_LOW_NAME,
+      registry_key.setValue(APP_LOW_NAME,
-                           QtSingleApplication::applicationFilePath().replace('/', '\\'));
+                            QtSingleApplication::applicationFilePath().replace('/',
+                                                                               '\\'));
       return true;
     case SystemFactory::Disabled:
-      registy_key.remove(APP_LOW_NAME);
+      registry_key.remove(APP_LOW_NAME);
       return true;
     default:
       return false;

src/gui/formmain.cpp

@@ -22,6 +22,8 @@ FormMain::FormMain(QWidget *parent) : QMainWindow(parent), m_ui(new Ui::FormMain
 
   // Establish connections.
   createConnections();
+
+  prepareMenus();
 }
 
 FormMain::~FormMain() {
@@ -32,6 +34,21 @@ FormMain *FormMain::getInstance() {
   return m_this;
 }
 
+QMenu *FormMain::getTrayMenu() {
+  return m_trayMenu;
+}
+
+void FormMain::prepareMenus() {
+  // Setup menu for tray icon.
+  if (SystemTrayIcon::isSystemTrayAvailable()) {
+    m_trayMenu = new QMenu(APP_NAME, this);
+
+    // Add needed items to the menu.
+    m_trayMenu->addAction(m_ui->m_actionSettings);
+    m_trayMenu->addAction(m_ui->m_actionQuit);
+  }
+}
+
 void FormMain::processExecutionMessage(const QString &message) {
   // TODO: Implement proper reaction when application is launched more than once.
   qDebug("Received '%s' execution message from another application instance.",
@@ -44,6 +61,15 @@ void FormMain::quit() {
   qApp->quit();
 }
 
+void FormMain::switchVisibility() {
+  if (isVisible()) {
+    hide();
+  }
+  else {
+    display();
+  }
+}
+
 void FormMain::display() {
   // Make sure window is not minimized.
   setWindowState(windowState() & ~Qt::WindowMinimized);

src/gui/formmain.h

@@ -13,9 +13,13 @@ class FormMain : public QMainWindow {
     explicit FormMain(QWidget *parent = 0);
     ~FormMain();
 
+    // Returns menu for the tray icon.
+    QMenu *getTrayMenu();
+
     static FormMain *getInstance();
 
   protected:
+    void prepareMenus();
     void createConnections();
     void closeEvent(QCloseEvent *event);
 
@@ -30,6 +34,7 @@ class FormMain : public QMainWindow {
     void processExecutionMessage(const QString &message);
     void quit();
     void display();
+    void switchVisibility();
 
   protected slots:
     void cleanupResources();
@@ -37,6 +42,7 @@ class FormMain : public QMainWindow {
     
   private:
     Ui::FormMain *m_ui;
+    QMenu *m_trayMenu;
 
     static FormMain *m_this;
 };

src/gui/systemtrayicon.cpp

@@ -1,5 +1,6 @@
 #include <QPainter>
 #include <QTimer>
+#include <QMessageBox>
 
 #include "gui/systemtrayicon.h"
 #include "gui/formmain.h"
@@ -18,6 +19,10 @@ SystemTrayIcon::SystemTrayIcon(const QString &normal_icon,
 
   // Initialize icon.
   setNumber();
+  setContextMenu(parent->getTrayMenu());
+
+  // Create necessary connections.
+  connect(this, &SystemTrayIcon::activated, this, &SystemTrayIcon::onActivated);
 }
 
 SystemTrayIcon::~SystemTrayIcon() {
@@ -25,6 +30,17 @@ SystemTrayIcon::~SystemTrayIcon() {
   hide();
 }
 
+void SystemTrayIcon::onActivated(const ActivationReason &reason) {
+  switch (reason) {
+    case SystemTrayIcon::Trigger:
+    case SystemTrayIcon::DoubleClick:
+    case SystemTrayIcon::MiddleClick:
+      static_cast<FormMain*>(parent())->switchVisibility();
+    default:
+      break;
+  }
+}
+
 bool SystemTrayIcon::isSystemTrayAvailable() {
   return QSystemTrayIcon::isSystemTrayAvailable() && QSystemTrayIcon::supportsMessages();
 }
@@ -53,7 +69,7 @@ void SystemTrayIcon::deleteInstance() {
   }
 }
 
-void SystemTrayIcon::show_private() {
+void SystemTrayIcon::showPrivate() {
   QSystemTrayIcon::show();
   qDebug("Tray icon displayed.");
 }
@@ -68,7 +84,7 @@ void SystemTrayIcon::show() {
   qDebug("Showing tray icon with 1000 ms delay.");
   QTimer::singleShot(1000,
                      Qt::CoarseTimer,
-                     this, SLOT(show_private()));
+                     this, SLOT(showPrivate()));
 #endif
 
 

src/gui/systemtrayicon.h

@@ -30,16 +30,15 @@ class SystemTrayIcon : public QSystemTrayIcon {
     // Sets the number to be visible in the tray icon, -1 removes it.
     void setNumber(int number = -1);
 
-    // TODO: Implement method for manual clearing of the tray icon. Creating of tray icon
+    // Explicitle clears SystemTrayIcon instance from the memory.
-    // handled by getInstance().
     static void deleteInstance();
-  signals:
     
   public slots:
     void show();
 
   private slots:
-    void show_private();
+    void showPrivate();
+    void onActivated(const ActivationReason &reason);
 
   private:
     QString m_normalIcon;