From 5d35de4e847bb5fa095d14f8940b0adc386f606b Mon Sep 17 00:00:00 2001
From: Gary Wang <wzc782970009@gmail.com>
Date: Sun, 6 Oct 2019 12:57:38 +0800
Subject: [PATCH] able to toggle stay on top

---
 mainwindow.cpp | 17 +++++++++++++++++
 mainwindow.h   |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/mainwindow.cpp b/mainwindow.cpp
index ce52483..2a18406 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -250,12 +250,19 @@ void MainWindow::resizeEvent(QResizeEvent *event)
 void MainWindow::contextMenuEvent(QContextMenuEvent *event)
 {
     QMenu * menu = new QMenu;
+    QAction * stayOnTopMode = new QAction(tr("Stay on top"));
+    connect(stayOnTopMode, &QAction::triggered, this, [ = ](){
+        toggleStayOnTop();
+    });
+    stayOnTopMode->setCheckable(true);
+    stayOnTopMode->setChecked(stayOnTop());
     QAction * protectedMode = new QAction(tr("Protected mode"));
     connect(protectedMode, &QAction::triggered, this, [ = ](){
         toggleProtectedMode();
     });
     protectedMode->setCheckable(true);
     protectedMode->setChecked(m_protectedMode);
+    menu->addAction(stayOnTopMode);
     menu->addAction(protectedMode);
     menu->exec(mapToGlobal(event->pos()));
     menu->deleteLater();
@@ -385,3 +392,13 @@ void MainWindow::toggleProtectedMode()
     m_protectedMode = !m_protectedMode;
     m_closeButton->setVisible(!m_protectedMode);
 }
+
+void MainWindow::toggleStayOnTop()
+{
+    setWindowFlag(Qt::WindowStaysOnTopHint, !stayOnTop());
+}
+
+bool MainWindow::stayOnTop()
+{
+    return windowFlags().testFlag(Qt::WindowStaysOnTopHint);
+}
diff --git a/mainwindow.h b/mainwindow.h
index 3c47175..7687b1a 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -43,6 +43,8 @@ protected slots:
     void closeWindow();
     void updateWidgetsPosition();
     void toggleProtectedMode();
+    void toggleStayOnTop();
+    bool stayOnTop();
 
 private:
     QPoint m_oldMousePos;