From a5b11b9031f9a2a97b65e9a6134244249845491a Mon Sep 17 00:00:00 2001 From: Denis Dzyubenko Date: Tue, 2 Jun 2009 16:29:57 +0200 Subject: Avoid a crash when setting a focus in a widget hierarchy containing both visible and invisible widgets. This is a quick hack to avoid a crash in Qt when setting a focus on a visible widget that has invisible parent. Proper fix was committed into master 1a7da7096bbda17197738061902f4489af234bc0, see it's description for more details. Task-number: 254563 Reviewed-by: Thierry Bastian --- src/gui/kernel/qwidget.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp index bbf6758..baf3278 100644 --- a/src/gui/kernel/qwidget.cpp +++ b/src/gui/kernel/qwidget.cpp @@ -5804,8 +5804,9 @@ void QWidget::setFocus(Qt::FocusReason reason) void QWidget::clearFocus() { QWidget *w = this; - while (w && w->d_func()->focus_child == this) { - w->d_func()->focus_child = 0; + while (w) { + if (w->d_func()->focus_child == this) + w->d_func()->focus_child = 0; w = w->parentWidget(); } #ifndef QT_NO_GRAPHICSVIEW -- cgit v0.12