From f4b8697c40bd476ef6bf83418e144adce7c7d4a3 Mon Sep 17 00:00:00 2001 From: Shawn Rutledge Date: Tue, 3 Feb 2015 13:05:20 +0100 Subject: Handle gracefully the removal and re-attachment of all QScreens MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Don't crash; restore windows when all screens are removed and re-added. xcb: on configure notify, check for screen change: it may be that a window belonging to a screen which was removed has now gotten mapped to the new screen. On screen change, send a synthetic expose event, because the real expose events already happened. Task-number: QTBUG-38326 Task-number: QTBUG-32973 Task-number: QTBUG-42985 Change-Id: If334f55c248468ad3c95e7066bb14eca377d2050 Reviewed-by: Jørgen Lind --- src/widgets/kernel/qwidgetwindow.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/widgets/kernel/qwidgetwindow.cpp') diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp index ed5d56c689..5724df6c55 100644 --- a/src/widgets/kernel/qwidgetwindow.cpp +++ b/src/widgets/kernel/qwidgetwindow.cpp @@ -635,7 +635,8 @@ void QWidgetWindow::handleScreenChange() sendScreenChangeRecursively(m_widget); // Invalidate the backing store buffer and repaint immediately. - repaintWindow(); + if (screen()) + repaintWindow(); } void QWidgetWindow::repaintWindow() -- cgit v1.2.3