diff options
| author | Gatis Paeglis <gatis.paeglis@digia.com> | 2013-11-05 12:06:28 +0100 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2014-01-10 15:37:51 +0100 |
| commit | b088e4827f427189334e8a1c5b4f2b8b0b713fc2 (patch) | |
| tree | e792c60db729c186f739b9e8e1553d9184272c58 /src/widgets/kernel/qwidget_qpa.cpp | |
| parent | eb5c0f4b1266702c016b032e281bb92a3a642da6 (diff) | |
Fix bug on X11 with WA_TranslucentBackground and native child windows.
The native child windows need to inherit the parent's visual in order
to have a translucent background as well.
Surface with type QSurface::OpenGLSurface should not be forced to use
the parent window's visual - the parent visual for instance, might not
even be GL capable.
Changing WA_TranslucentBackground during runtime is not supported, for
two reasons:
1) Other platform plugins seem not to support it
2) It would require recreating X windows.
Task-number: QTBUG-29625
Change-Id: Ic1474dd2de99069027481c7db6bf865f9b8d616d
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Diffstat (limited to 'src/widgets/kernel/qwidget_qpa.cpp')
| -rw-r--r-- | src/widgets/kernel/qwidget_qpa.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/widgets/kernel/qwidget_qpa.cpp b/src/widgets/kernel/qwidget_qpa.cpp index 3281e0c6f7..0fd794cc02 100644 --- a/src/widgets/kernel/qwidget_qpa.cpp +++ b/src/widgets/kernel/qwidget_qpa.cpp @@ -118,11 +118,12 @@ void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyO win->resize(q->size()); win->setScreen(QGuiApplication::screens().value(topData()->screenIndex, 0)); - if (q->testAttribute(Qt::WA_TranslucentBackground)) { - QSurfaceFormat format; + QSurfaceFormat format = win->requestedFormat(); + if ((flags & Qt::Window) && win->surfaceType() != QSurface::OpenGLSurface + && q->testAttribute(Qt::WA_TranslucentBackground)) { format.setAlphaBufferSize(8); - win->setFormat(format); } + win->setFormat(format); if (QWidget *nativeParent = q->nativeParentWidget()) { if (nativeParent->windowHandle()) { |