From 2d668d870d4acd90e0ee4ff27e65e92fd311ce22 Mon Sep 17 00:00:00 2001 From: Prasanth Ullattil Date: Fri, 28 Aug 2009 11:00:59 +0200 Subject: Fix crash in backingstore when QWidget::paintEngine() returns 0 Reviewed-by: Samuel --- src/gui/painting/qbackingstore.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp index 4f45c3d..4665b66 100644 --- a/src/gui/painting/qbackingstore.cpp +++ b/src/gui/painting/qbackingstore.cpp @@ -1544,8 +1544,8 @@ void QWidgetPrivate::repaint_sys(const QRegion &rgn) // QGLWidget does not support partial updates if: // 1) The context is double buffered // 2) The context is single buffered and auto-fill background is enabled. - const bool noPartialUpdateSupport = (engine && engine->type() == QPaintEngine::OpenGL - || engine->type() == QPaintEngine::OpenGL2) + const bool noPartialUpdateSupport = (engine && (engine->type() == QPaintEngine::OpenGL + || engine->type() == QPaintEngine::OpenGL2)) && (usesDoubleBufferedGLContext || q->autoFillBackground()); QRegion toBePainted(noPartialUpdateSupport ? q->rect() : rgn); -- cgit v0.12