Remove QApplicationPrivate::desktop()

A desktop widget is no longer needed.

Remove the function and the associated static variable, and its
deletion in the QWidget d'tor.

Fixes: QTBUG-124559
Change-Id: I717a93b0f19cb60fd25bef5f5cbb905cd7585194
Reviewed-by: Tor Arne Vestbø <[email protected]>

1 files changed, 0 insertions, 23 deletions

diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index bd0108dd0d3..bcf10ad8ed2 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -357,8 +357,6 @@ Q_GLOBAL_STATIC(FontHash, app_fonts)
 // Exported accessor for use outside of this file
 FontHash *qt_app_fonts_hash() { return app_fonts(); }
 
-QWidget *qt_desktopWidget = nullptr;                // root window widgets
-
 /*!
     \internal
 */
@@ -685,9 +683,6 @@ QApplication::~QApplication()
         delete mySet;
     }
 
-    delete qt_desktopWidget;
-    qt_desktopWidget = nullptr;
-
     QApplicationPrivate::widgetPalettes.clear();
 
     delete QApplicationPrivate::sys_font;
@@ -2438,24 +2433,6 @@ void QApplicationPrivate::sendSyntheticEnterLeave(QWidget *widget)
 #endif // QT_NO_CURSOR
 }
 
-/*!
-    \internal
-
-    Returns the desktop widget (also called the root window).
-
-    The widget represents the entire virtual desktop, and its geometry will
-    be the union of all screens.
-*/
-QWidget *QApplicationPrivate::desktop()
-{
-    CHECK_QAPP_INSTANCE(nullptr)
-    if (!qt_desktopWidget || // not created yet
-         !(qt_desktopWidget->windowType() == Qt::Desktop)) { // reparented away
-        qt_desktopWidget = new QWidget(nullptr, Qt::Desktop);
-    }
-    return qt_desktopWidget;
-}
-
 /*
   Sets the time after which a drag should start to \a ms ms.