Make hellowindow multi display capable on embedded

Platforms like eglfs allow a single window per screen. Thus the behavior of
--multiple is not suitable since it tries to open multiple windows on the
primary screen. Instead, introduce --multiscreen.

Add also --timeout to quit the app after 10 seconds. This is essential on
platforms that do not have windows with decorations that can be used to
close windows.

With eglfs' kms/drm hooks, starting with --multiscreen will now show a
rotating logo on all connected displays, with some random background color.

Change-Id: I53f2651f05620e752c289038a9b3ff4508273173
Reviewed-by: Louai Al-Khanji <louai.al-khanji@digia.com>
Reviewed-by: Andy Nichols <andy.nichols@digia.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/examples/opengl/hellowindow/hellowindow.h b/examples/opengl/hellowindow/hellowindow.h
index 6a6fa275e2..cba4b34db6 100644
--- a/examples/opengl/hellowindow/hellowindow.h
+++ b/examples/opengl/hellowindow/hellowindow.h
@@ -90,12 +90,14 @@ private:
     int m_currentWindow;
 
     QMutex m_windowLock;
+
+    QColor m_backgroundColor;
 };
 
 class HelloWindow : public QWindow
 {
 public:
-    explicit HelloWindow(const QSharedPointer<Renderer> &renderer);
+    explicit HelloWindow(const QSharedPointer<Renderer> &renderer, QScreen *screen = 0);
 
     QColor color() const;
     void updateColor();