Qt 4.8.6 - Parent Window on Linux

[JoNo_21]

On Windows if I create 2 windows, with one being the parent of the other the child window becomes a floating window. Namely the child cannot go underneath the parent window. On my Linux box this behavior doesn't seem to work. My code is:

@
#include <QApplication>
#include <QWidget>

int main(int argc, char **argv)
{
QApplication app(argc, argv);

QWidget widget;
widget.setWindowTitle("win1");
widget.show();

QWidget widget2;
widget2.setWindowTitle("win2");
widget2.setParent(&widget, widget.windowFlags());
widget2.show();

}
@

Any suggestions?

[andreyc]

I guess it depends on a window manager.
For example in Gnome3 a widget window from your example is always below widget2 window.
But widget gets focus when mouse goes over it and I can put it above widget2 if I select "Always on Top" from a titlebar menu.

[JoNo_21]

Ok, but is there a way to make windows on Linux behave in the same floating manor as on Windows?

The closest I can see is to set the always on top flag for child windows, but that won't really work with children of children correctly.

[DBoosalis]

Could always do something like this for the first window:

Declare widget1 to have a member childWidget.virtual method for

@ widget1.childWidget = &widget2;@

And write out its virtual method for the focusInEvent() with something like:

@void MainWindow::focusInEvent(QFocusEvent *)
{
if (childWidget)
childWidget->raise();
}
@

Can propigate the raise for all other children as well.