1 files changed, 37 insertions, 3 deletions

diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp
index c6753fc19f..5ece7d65c6 100644
--- a/src/gui/kernel/qwidget_x11.cpp
+++ b/src/gui/kernel/qwidget_x11.cpp
@@ -1333,12 +1333,40 @@ QPoint QWidgetPrivate::mapFromGlobal(const QPoint &pos) const
 QPoint QWidget::mapToGlobal(const QPoint &pos) const
 {
     Q_D(const QWidget);
+    QPoint offset = data->crect.topLeft();
+    const QWidget *w = this;
+    const QWidget *p = w->parentWidget();
+    while (!w->isWindow() && p) {
+        w = p;
+        p = p->parentWidget();
+        offset += w->data->crect.topLeft();
+    }
+
+    const QWidgetPrivate *wd = w->d_func();
+    QTLWExtra *tlw = wd->topData();
+    if (!tlw->embedded)
+        return pos + offset;
+
     return d->mapToGlobal(pos);
 }
 
 QPoint QWidget::mapFromGlobal(const QPoint &pos) const
 {
     Q_D(const QWidget);
+    QPoint offset = data->crect.topLeft();
+    const QWidget *w = this;
+    const QWidget *p = w->parentWidget();
+    while (!w->isWindow() && p) {
+        w = p;
+        p = p->parentWidget();
+        offset += w->data->crect.topLeft();
+    }
+
+    const QWidgetPrivate *wd = w->d_func();
+    QTLWExtra *tlw = wd->topData();
+    if (!tlw->embedded)
+        return pos - offset;
+
     return d->mapFromGlobal(pos);
 }
 
@@ -1352,9 +1380,15 @@ void QWidgetPrivate::updateSystemBackground()
     if (brush.style() == Qt::NoBrush
         || q->testAttribute(Qt::WA_NoSystemBackground)
         || q->testAttribute(Qt::WA_UpdatesDisabled)
-        || type == Qt::Popup || type == Qt::ToolTip
-        )
-        XSetWindowBackgroundPixmap(X11->display, q->internalWinId(), XNone);
+        || type == Qt::Popup || type == Qt::ToolTip) {
+            if (QX11Info::isCompositingManagerRunning()
+                && q->testAttribute(Qt::WA_TranslucentBackground)
+                && !(q->parent()))
+                XSetWindowBackground(X11->display, q->internalWinId(),
+                                     QColormap::instance(xinfo.screen()).pixel(Qt::transparent));
+            else
+                XSetWindowBackgroundPixmap(X11->display, q->internalWinId(), XNone);
+        }
     else if (brush.style() == Qt::SolidPattern && brush.isOpaque())
         XSetWindowBackground(X11->display, q->internalWinId(),
                              QColormap::instance(xinfo.screen()).pixel(brush.color()));