Fixed Designer property editor selection bug.

When the editor had been created inside the QtPropertyEditorView (inheriting
QTreeWidget), the subsequent show sent a synthetic mouse move event down to
the QLineEdit, and a new selection was made on the text because the mouse
button was marked as pressed in the event.

QApplicationPrivate::sendSyntheticEnterLeave() now sends a mouse move event
without any button pressed. Auto-test included in tst_QWidget.

Task-number: QTBUG-4055
Task-number: 253159
Task-number: QT-659
Task-number: 245398
Reviewed-by: bnilsen

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 37150590f9..832d829d9b 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -3002,7 +3002,7 @@ void QApplicationPrivate::sendSyntheticEnterLeave(QWidget *widget)
         qt_button_down = 0;
 
     // Send enter/leave events followed by a mouse move on the entered widget.
-    QMouseEvent e(QEvent::MouseMove, pos, globalPos, Qt::NoButton, mouse_buttons, modifier_buttons);
+    QMouseEvent e(QEvent::MouseMove, pos, globalPos, Qt::NoButton, Qt::NoButton, Qt::NoModifier);
     sendMouseEvent(widgetUnderCursor, &e, widgetUnderCursor, tlw, &qt_button_down, qt_last_mouse_receiver);
 #endif // QT_NO_CURSOR
 }