Implement QDesktopWidget::screenCountChanged signal on desktop platforms,

and add manual testcase.

Provide replacement "screenCount" for numScreens and document numScreens
as obsolete to be more consistent with other APIs.

1 files changed, 2 insertions, 11 deletions

diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index cc41299..a07ccdd 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -3441,19 +3441,10 @@ int QApplication::x11ProcessEvent(XEvent* event)
         QSize oldSize(w->size());
         w->data->crect.setWidth(DisplayWidth(X11->display, scr));
         w->data->crect.setHeight(DisplayHeight(X11->display, scr));
-        QVarLengthArray<QRect> oldSizes(desktop->numScreens());
-        for (int i = 0; i < desktop->numScreens(); ++i)
-            oldSizes[i] = desktop->screenGeometry(i);
         QResizeEvent e(w->size(), oldSize);
         QApplication::sendEvent(w, &e);
-        for (int i = 0; i < qMin(oldSizes.count(), desktop->numScreens()); ++i) {
-            if (oldSizes[i] != desktop->screenGeometry(i))
-                emit desktop->resized(i);
-        }
-        for (int i = oldSizes.count(); i < desktop->numScreens(); ++i)
-            emit desktop->resized(i); // added
-        for (int i = desktop->numScreens(); i < oldSizes.count(); ++i)
-            emit desktop->resized(i); // removed
+        if (w != desktop)
+            QApplication::sendEvent(desktop, &e);
     }
 #endif // QT_NO_XRANDR