vcl/qt5/QtWidget.cxx | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
New commits:
commit b20d0f9b3797f6e1e33076d386608fa5eecd1106
Author: Michael Weghorn <m.wegh...@posteo.de>
AuthorDate: Sat Feb 8 14:11:10 2025 +0100
Commit: Michael Weghorn <m.wegh...@posteo.de>
CommitDate: Sat Feb 8 18:00:17 2025 +0100
tdf#165062 qt: Make only floating window/popup widget bg translucent
For QtWidget, only set the window attributes needed for
translucent background for floating windows and popups,
not all QtWidgets.
This fixes rendering issues when resizing a Window
with Notebookbar (Groupedbar Compact) active (tdf#165062).
Setting those flags was introduced in
commit 9ea767cb568cef1b142190d2adb0e301baa382e2
Date: Thu May 26 13:48:38 2022 +0200
tdf#132350 Qt implement SalMenu button interface
whose commit message explains:
> This also includes the transparency flags for our QtWidget, so the
> updater "bubble window" is properly alpha-masked / shaped.
Indeed, the BubbleWindow doesn't properly use alpha
on X11 if those flags are not set in a quick test with demo change [1]
applied
locally to trigger the update notification.
(Even without those flags set, the window still uses
a translucent background on Wayland in my tests. It has
a different problem of being misplaced there, but that's
a completely independent issue, see tdf#158994.)
[1] https://gerrit.libreoffice.org/c/core/+/106922/4
Change-Id: Ibda381985c0dc562d7548656146f99f01fca1964
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/181292
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.wegh...@posteo.de>
diff --git a/vcl/qt5/QtWidget.cxx b/vcl/qt5/QtWidget.cxx
index f6a932068ba2..d3cc46d34e05 100644
--- a/vcl/qt5/QtWidget.cxx
+++ b/vcl/qt5/QtWidget.cxx
@@ -716,9 +716,15 @@ QtWidget::QtWidget(QtFrame& rFrame, Qt::WindowFlags f)
, m_nDeltaX(0)
, m_nDeltaY(0)
{
- setAttribute(Qt::WA_TranslucentBackground);
- setAttribute(Qt::WA_OpaquePaintEvent);
- setAttribute(Qt::WA_NoSystemBackground);
+ // make floating windows translucent, needed at least by BubbleWindow
+ // (used for update notifications) on X11
+ if (f & Qt::FramelessWindowHint)
+ {
+ setAttribute(Qt::WA_TranslucentBackground);
+ setAttribute(Qt::WA_OpaquePaintEvent);
+ setAttribute(Qt::WA_NoSystemBackground);
+ }
+
setMouseTracking(true);
if (!rFrame.isPopup())
setFocusPolicy(Qt::StrongFocus);
