Determine tray icon locataion on screen.

[Dariusz]

Hey

So this is a hippi wippi one. I want to have a popup widget when user click on tray. But for that I need to know where I should position the widget...
Now the icon can be in 4 different "areas" on screen, depending on taskbar settings, top/left/right/bottom. On top of that the icon can be on any number of screens... so if there is 5 screen config... tray can be anywhere or on all of them...

I was looking over screens 1st:

        auto app = qobject_cast<QGuiApplication *>(QApplication::instance());
        QScreen *s = nullptr;
        auto tg = mTrayIcon->geometry();
        for (auto &a: app->screens()) {
            if (a->geometry().contains(tg)) {
                s = a;
                break;
            }
        }

To determine which screen I'm on.
Now this does not sadly tell me if its left of primary/right/etc etc as far as I can tell...
So finding out the position of tray is a little hard...

As once I find it, I have to place the widget properly next to it/above it/below it/ etc...

Now so far I was trying to determine that using widget.geo().x()/y() and then finding its on a screen.
But screen x/y coordinates are in... "global" space, not per sreen... so screen to right would have screen0.width()+screen1.width()==screen2.x()
And not 0...

Anyway, u'm fairly sure I lost you already... maybe to "simplify it" how can I find out in which corner given tray icon is on screen?

TIA

[SGaist]

Hi,

I would go check the contextual menu handling in QSystemTrayIcon's sources, there might something there to help you.

[Chris Kawa]

You can do something like this:

QPoint tray_center   = mTrayIcon->geometry().center();
QRect  screen_rect   = qApp->screenAt(tray_center)->geometry();
QPoint screen_center = screen_rect.center();

Qt::Corner corner = Qt::TopLeftCorner;
if (tray_center.x() > screen_center.x() && tray_center.y() <= screen_center.y())
    corner = Qt::TopRightCorner;
else if (tray_center.x() > screen_center.x() && tray_center.y() > screen_center.y())
    corner = Qt::BottomRightCorner;
else if (tray_center.x() <= screen_center.x() && tray_center.y() > screen_center.y())
    corner = Qt::BottomLeftCorner;

So yeah, screenAt will give you the screen you're on and corner will tell you which corner of the screen are you in.

Then you can use qApp->screenAt(tray_center)->availableGeometry() to determine the workable area of that screen and use the corner information to place your widget. You don't need to know if it's a primary , left or right screen. The available geometry is enough for your purpose.