Merge pull request #3 from MeshAndrey/SystemTray

System tray

Author: MeshAndrey

resources/images/README.txt

@@ -0,0 +1 @@
+<a href="https://www.flaticon.com/free-icons/timer" title="timer icons">Timer icons created by Freepik - Flaticon</a>

resources/images/timer.png

@@ -1,5 +1,6 @@
 <RCC>
     <qresource prefix="/">
         <file>sounds/mixkit-urgent-simple-tone-loop-2976.wav</file>
+        <file>images/timer.png</file>
     </qresource>
 </RCC>

resources/resources.qrc

@@ -1,6 +1,7 @@
 #include "MainWindow.h"
 #include "widgets/InputWidget.h"
 #include <QScrollArea>
+#include <QCloseEvent>
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
@@ -22,6 +23,28 @@ MainWindow::MainWindow(QWidget *parent)
     area->horizontalScrollBar()->setVisible(false);
     area->setWidget(centralWidget);
 
+    setWindowIcon(QIcon(":/images/timer.png"));
+
+    QAction* showHideAction =
+        new QAction("&Show/Hide Application Window", this);
+
+    connect(showHideAction, &QAction::triggered,
+            this,           &MainWindow::showHideWindow);
+
+    QAction* quitAction = new QAction("&Quit", this);
+    connect(quitAction, &QAction::triggered,
+            qApp,       &QApplication::quit);
+
+    trayIconMenu = new QMenu(this);
+    trayIconMenu->addAction(showHideAction);
+    trayIconMenu->addAction(quitAction);
+
+    trayIcon = new QSystemTrayIcon(this);
+    trayIcon->setContextMenu(trayIconMenu);
+    trayIcon->setToolTip("Timer app");
+    trayIcon->setIcon(QIcon(":/images/timer.png"));
+    trayIcon->show();
+
     setCentralWidget(area);
 }
 
@@ -35,6 +58,11 @@ void MainWindow::addButtonClicked()
 void MainWindow::replaceWidget(QWidget* oldWidget,
                                QWidget* newWidget)
 {
+    if (!this->isVisible())
+    {
+        show();
+    }
+
     auto old = layout->replaceWidget(oldWidget, newWidget, Qt::FindDirectChildrenOnly)->widget();
 
     if (old == nullptr)
@@ -63,6 +91,38 @@ void MainWindow::showMessageBox(QString message)
     msg.exec();
 }
 
+void MainWindow::showHideWindow()
+{
+    setVisible(!isVisible());
+}
+void MainWindow::showEvent(QShowEvent* event)
+{
+    QMainWindow::showEvent(event);
+
+    QSettings settings("MyCompany", "MyApp");
+    this->restoreGeometry(settings.value("geometry").toByteArray());
+    this->restoreState(settings.value("windowState").toByteArray());
+}
+
+void MainWindow::hideEvent(QHideEvent* event)
+{
+    QMainWindow::hideEvent(event);
+
+    QSettings settings("MyCompany", "MyApp");
+    settings.setValue("geometry", saveGeometry());
+    settings.setValue("windowState", saveState());
+}
+
+void MainWindow::closeEvent(QCloseEvent* event)
+{
+    QMainWindow::closeEvent(event);
+
+    if (this->isVisible()) {
+        hide();
+    }
+    event->ignore();
+}
+
 MainWindow::~MainWindow()
 {
 }

src/MainWindow.cpp

@@ -4,6 +4,7 @@
 #include <QMainWindow>
 #include <QVBoxLayout>
 #include <QPushButton>
+#include <QSystemTrayIcon>
 
 class MainWindow : public QMainWindow
 {
@@ -12,9 +13,16 @@ class MainWindow : public QMainWindow
     QVBoxLayout *layout = nullptr;
     QWidget *centralWidget = nullptr;
     QPushButton* addButton = nullptr;
+    QSystemTrayIcon* trayIcon;
+    QMenu*           trayIconMenu;
+
+    void showEvent(QShowEvent* event);
+    void hideEvent(QHideEvent* event);
+    void closeEvent(QCloseEvent* event);
 
 private slots:
     void addButtonClicked();
+    void showHideWindow();
 
 public:
     MainWindow(QWidget *parent = nullptr);