Hide Mouse after Timeout in Qt GUI

gui/include/avopenglwidget.h

@@ -59,6 +59,8 @@ class AVOpenGLWidget: public QOpenGLWidget
 		AVOpenGLFrameUploader *frame_uploader;
 		QThread *frame_uploader_thread;
 
+		QTimer *mouse_timer;
+
 	public:
 		static QSurfaceFormat CreateSurfaceFormat();
 
@@ -69,8 +71,15 @@ class AVOpenGLWidget: public QOpenGLWidget
 		AVOpenGLFrame *GetBackgroundFrame()	{ return &frames[1 - frame_fg]; }
 
 	protected:
+		void mouseMoveEvent(QMouseEvent *event) override;
+
 		void initializeGL() override;
 		void paintGL() override;
+
+	private slots:
+		void ResetMouseTimeout();
+	public slots:
+		void HideMouse();
 };
 
 #endif // CHIAKI_AVOPENGLWIDGET_H

gui/src/avopenglwidget.cpp

@@ -23,6 +23,9 @@
 #include <QOpenGLExtraFunctions>
 #include <QOpenGLDebugLogger>
 #include <QThread>
+#include <QTimer>
+
+#define MOUSE_TIMEOUT_MS 1000
 
 //#define DEBUG_OPENGL
 
@@ -96,6 +99,11 @@ AVOpenGLWidget::AVOpenGLWidget(VideoDecoder *decoder, QWidget *parent)
 	frame_uploader = nullptr;
 	frame_uploader_thread = nullptr;
 	frame_fg = 0;
+
+	setMouseTracking(true);
+	mouse_timer = new QTimer(this);
+	connect(mouse_timer, &QTimer::timeout, this, &AVOpenGLWidget::HideMouse);
+	ResetMouseTimeout();
 }
 
 AVOpenGLWidget::~AVOpenGLWidget()
@@ -110,6 +118,23 @@ AVOpenGLWidget::~AVOpenGLWidget()
 	delete frame_uploader_context;
 }
 
+void AVOpenGLWidget::mouseMoveEvent(QMouseEvent *event)
+{
+	QOpenGLWidget::mouseMoveEvent(event);
+	ResetMouseTimeout();
+}
+
+void AVOpenGLWidget::ResetMouseTimeout()
+{
+	unsetCursor();
+	mouse_timer->start(MOUSE_TIMEOUT_MS);
+}
+
+void AVOpenGLWidget::HideMouse()
+{
+	setCursor(Qt::BlankCursor);
+}
+
 void AVOpenGLWidget::SwapFrames()
 {
 	QMutexLocker lock(&frames_mutex);

gui/src/streamwindow.cpp

@@ -126,13 +126,11 @@ void StreamWindow::LoginPINRequested(bool incorrect)
 void StreamWindow::ToggleFullscreen()
 {
 	if(isFullScreen())
-	{
-		setCursor(Qt::ArrowCursor);
 		showNormal();
-	}
 	else
 	{
-		setCursor(Qt::BlankCursor);
 		showFullScreen();
+		if(av_widget)
+			av_widget->HideMouse();
 	}
 }