feat: show drag cursor

src/MainWindow.cpp

@@ -27,6 +27,9 @@ MainWindow::MainWindow(QWidget *parent)
   ui = new Ui::MainWindow;
   ui->setupUi(this);
 
+  QWidget *topBar = ui->widget;
+  topBar->setCursor(Qt::OpenHandCursor);
+
   // Enable frameless window for edge-to-edge experience
   setWindowFlags(Qt::FramelessWindowHint | Qt::Window);
   setAttribute(Qt::WA_TranslucentBackground, false);
@@ -373,6 +376,7 @@ void MainWindow::mousePressEvent(QMouseEvent *event)
     if (topBar && topBar->geometry().contains(event->pos()))
     {
       m_isDragging = true;
+      setCursor(Qt::ClosedHandCursor);
       m_dragPosition = event->globalPosition().toPoint() - frameGeometry().topLeft();
       event->accept();
       return;
@@ -397,6 +401,7 @@ void MainWindow::mouseReleaseEvent(QMouseEvent *event)
   if (event->button() == Qt::LeftButton)
   {
     m_isDragging = false;
+    unsetCursor();
   }
   QMainWindow::mouseReleaseEvent(event);
 }