From 5cf6f6276a3a9103876937c300c1adce157eebeb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Trond=20Kjern=C3=A5sen?= Date: Fri, 20 Nov 2009 12:24:06 +0100 Subject: Fixed antialiasing in the GL based QGraphicsView demos under X11. All the examples/demos that used a QGraphicsView with a QGLWidget as a viewport, that had multisampling enabled, was broken after 7b61fbf03e170a7da37d5f57ed4053aae719ec7f. This is because the reparented QGLWidget will be forced to use the parent widget's visual, which in this case does not contain any multisample buffers. The QX11Info structure for QGLWidget is put together based on the QGLFormat that is passed into the QGLWidget constructor and will in most cases always be different from the parent widget visual. Task-number: QTBUG-5998 and QTBUG-6003 Reviewed-by: Eskil --- src/gui/kernel/qwidget_x11.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp index 7461637..0bc9cbc 100644 --- a/src/gui/kernel/qwidget_x11.cpp +++ b/src/gui/kernel/qwidget_x11.cpp @@ -527,8 +527,13 @@ void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyO QX11InfoData *xd = &X11->screens[qt_x11_create_desktop_on_screen]; xinfo.setX11Data(xd); } else if (parentXinfo && (parentXinfo->screen() != xinfo.screen() - || parentXinfo->visual() != xinfo.visual())) + || (parentXinfo->visual() != xinfo.visual() + && !q->inherits("QGLWidget")))) { + // QGLWidgets have to be excluded here as they have a + // specially crafted QX11Info structure which can't be swapped + // out with the parent widgets QX11Info. The parent visual, + // for instance, might not even be GL capable. xinfo = *parentXinfo; } -- cgit v0.12