mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-08 22:45:43 +00:00
63 lines
2.8 KiB
Diff
63 lines
2.8 KiB
Diff
|
From 7989a04cee3b614d493a5acbd1ff0363596efc00 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Michael Weghorn <m.weghorn@posteo.de>
|
||
|
|
Date: Wed, 13 Mar 2024 12:27:12 +0100
|
||
|
|
Subject: tdf#159915 qt: Force Qt::HighDpiScaleFactorRoundingPolicy::Round
|
||
|
|
|
||
|
|
For now, force `Qt::HighDpiScaleFactorRoundingPolicy::Round`
|
||
|
|
for the HighDPI-scale factor rounding policy [1], which is the default
|
||
|
|
for Qt 5, while Qt 6 defaults to `Qt::HighDpiScaleFactorRoundingPolicy::PassThrough`
|
||
|
|
(see [2]), which resulted in broken rendering (e.g. "Help" -> "About"
|
||
|
|
dialog not showing the whole content) when fractional display scaling like 150 %
|
||
|
|
is configured in the KDE Plasma display settings (in contrast to manually setting the
|
||
|
|
`QT_SCALE_FACTOR=1.5` env variable to apply scaling, which was working
|
||
|
|
fine).
|
||
|
|
|
||
|
|
Quoting from [3]:
|
||
|
|
|
||
|
|
> The two principal options are whether fractional scale factors should be
|
||
|
|
> rounded to an integer or not. Keeping the scale factor as-is will make
|
||
|
|
> the user interface size match the OS setting exactly, but may cause
|
||
|
|
> painting errors, for example with the Windows style.
|
||
|
|
|
||
|
|
Manually setting the env variable `QT_SCALE_FACTOR_ROUNDING_POLICY="Round"`
|
||
|
|
has the same effect (and can be used with LO versions not yet
|
||
|
|
containing this fix).
|
||
|
|
|
||
|
|
(There might be a way to adjust the way that scaling happens
|
||
|
|
to make other policies work, but for now, just hard-code to
|
||
|
|
the policy that is known to work.)
|
||
|
|
|
||
|
|
[1] https://doc.qt.io/qt-6/qt.html#HighDpiScaleFactorRoundingPolicy-enum
|
||
|
|
[2] https://doc.qt.io/qt-6/highdpi.html#environment-variable-reference
|
||
|
|
[3] https://doc.qt.io/qt-6/qguiapplication.html#setHighDpiScaleFactorRoundingPolicy
|
||
|
|
|
||
|
|
Change-Id: I8eb6911d4dd5faf00912b8f15a58e0bdace1995a
|
||
|
|
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164768
|
||
|
|
Tested-by: Jenkins
|
||
|
|
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
|
||
|
|
(cherry picked from commit 07688e864c913e005dcae366cf10702404a73d80)
|
||
|
|
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/164744
|
||
|
|
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
|
||
|
|
---
|
||
|
|
vcl/qt5/QtInstance.cxx | 5 +++++
|
||
|
|
1 file changed, 5 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/vcl/qt5/QtInstance.cxx b/vcl/qt5/QtInstance.cxx
|
||
|
|
index 4880c1bdec55..f87cdef9348e 100644
|
||
|
|
--- a/vcl/qt5/QtInstance.cxx
|
||
|
|
+++ b/vcl/qt5/QtInstance.cxx
|
||
|
|
@@ -708,6 +708,11 @@ std::unique_ptr<QApplication> QtInstance::CreateQApplication(int& nArgc, char**
|
||
|
|
// for scaled icons in the native menus
|
||
|
|
QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
|
||
|
|
#endif
|
||
|
|
+ // force Qt::HighDpiScaleFactorRoundingPolicy::Round, which is the Qt 5 default
|
||
|
|
+ // policy and prevents incorrect rendering with the Qt 6 default policy
|
||
|
|
+ // Qt::HighDpiScaleFactorRoundingPolicy::PassThrough (tdf#159915)
|
||
|
|
+ QGuiApplication::setHighDpiScaleFactorRoundingPolicy(
|
||
|
|
+ Qt::HighDpiScaleFactorRoundingPolicy::Round);
|
||
|
|
|
||
|
|
FreeableCStr session_manager;
|
||
|
|
if (getenv("SESSION_MANAGER") != nullptr)
|
||
|
|
--
|
||
|
|
cgit v1.2.3
|