diff options
Diffstat (limited to 'tests/manual/qscreen/main.cpp')
-rw-r--r-- | tests/manual/qscreen/main.cpp | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/tests/manual/qscreen/main.cpp b/tests/manual/qscreen/main.cpp index 6f672ee422..1047ffcdfc 100644 --- a/tests/manual/qscreen/main.cpp +++ b/tests/manual/qscreen/main.cpp @@ -38,6 +38,7 @@ #include <QDebug> #include <QFormLayout> #include <QLineEdit> +#include <QDesktopWidget> int i = 0; @@ -66,19 +67,17 @@ void screenAdded(QScreen* screen) w->layout()->insertRow(0, "virtualSiblings", siblingsField); updateSiblings(w); - // This doesn't work. If the multiple screens are part of - // a virtual desktop (i.e. they are virtual siblings), then - // setScreen has no effect, and we need the code below to - // change the window geometry. If on the other hand the - // screens are really separate, so that windows are not - // portable between them, XCreateWindow needs to have not just - // a different root Window but also a different Display, in order to - // put the window on the other screen. That would require a - // different QXcbConnection. So this setScreen call doesn't seem useful. - //w->windowHandle()->setScreen(screen); + // Set the screen via QDesktopWidget. This corresponds to setScreen() for the underlying + // QWindow. This is essential when having separate X screens since the the positioning below is + // not sufficient to get the windows show up on the desired screen. + QList<QScreen *> screens = QGuiApplication::screens(); + int screenNumber = screens.indexOf(screen); + Q_ASSERT(screenNumber >= 0); + w->setParent(qApp->desktop()->screen(screenNumber)); - // But this works as long as the screens are all virtual siblings w->show(); + + // Position the windows so that they end up at the center of the corresponding screen. QRect geom = w->geometry(); geom.setSize(w->sizeHint()); if (geom.height() > screen->geometry().height()) |