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main: directly set Xwayland scale, instead of starting a KCM to do the same

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This commit is contained in:
Xaver Hugl 2023-10-04 13:24:22 +02:00
parent 3654b76ec2
commit 2eb72d0820
1 changed files with 9 additions and 2 deletions
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11
src/main.cpp
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@ -383,8 +383,15 @@ void Application::setXwaylandScale(qreal scale)
{
if (scale != m_xwaylandScale) {
m_xwaylandScale = scale;
// rerun the fonts kcm init that does the appropriate xrdb call with the new settings
QProcess::startDetached("kcminit", {"kcm_fonts", "kcm_style"});
// change the font dpi to match
const int dpi = std::round(scale * 96);
const QByteArray input = "Xft.dpi: " + QByteArray::number(dpi);
QProcess p;
p.start(QStringLiteral("xrdb"), {QStringLiteral("-quiet"), QStringLiteral("-merge"), QStringLiteral("-nocpp")});
p.setProcessChannelMode(QProcess::ForwardedChannels);
p.write(input);
p.closeWriteChannel();
p.waitForFinished(-1);
Q_EMIT xwaylandScaleChanged();
}
}