diff options
author | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2022-05-16 18:16:04 +0300 |
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committer | Tarja Sundqvist <tarja.sundqvist@qt.io> | 2022-05-16 18:16:04 +0300 |
commit | 231d3670981a33ec42b91ad1cb33c1fc50551066 (patch) | |
tree | b1ef1096f4e279baaa2ea0d2daf14b5c4185a82f /src/plugins/platforms/xcb/qxcbscreen.cpp | |
parent | ffdd372c7bbda62e9d937f406319f38e3e982774 (diff) | |
parent | 8fc1a885d19a2dfb1a3a684aea1cfa41967e041f (diff) |
Merge remote-tracking branch 'origin/tqtc/lts-5.15.5' into tqtc/lts-5.15-opensourcev5.15.5-lts-lgpl
Change-Id: I0cdb390124e783dc9cd832a9954baa76a0e9eb6b
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbscreen.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbscreen.cpp | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp index 707896b457..464d038671 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.cpp +++ b/src/plugins/platforms/xcb/qxcbscreen.cpp @@ -114,17 +114,13 @@ QXcbVirtualDesktop::QXcbVirtualDesktop(QXcbConnection *connection, xcb_screen_t } auto dpiChangedCallback = [](QXcbVirtualDesktop *desktop, const QByteArray &, const QVariant &property, void *) { - bool ok; - int dpiTimes1k = property.toInt(&ok); - if (!ok) + if (!desktop->setDpiFromXSettings(property)) return; - int dpi = dpiTimes1k / 1024; - if (desktop->m_forcedDpi == dpi) - return; - desktop->m_forcedDpi = dpi; + const auto dpi = desktop->forcedDpi(); for (QXcbScreen *screen : desktop->connection()->screens()) QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(screen->QPlatformScreen::screen(), dpi, dpi); }; + setDpiFromXSettings(xSettings()->setting("Xft/DPI")); xSettings()->registerCallbackForProperty("Xft/DPI", dpiChangedCallback, nullptr); } @@ -425,6 +421,19 @@ void QXcbVirtualDesktop::readXResources() } } +bool QXcbVirtualDesktop::setDpiFromXSettings(const QVariant &property) +{ + bool ok; + int dpiTimes1k = property.toInt(&ok); + if (!ok) + return false; + int dpi = dpiTimes1k / 1024; + if (m_forcedDpi == dpi) + return false; + m_forcedDpi = dpi; + return true; +} + QSurfaceFormat QXcbVirtualDesktop::surfaceFormatFor(const QSurfaceFormat &format) const { const xcb_visualid_t xcb_visualid = connection()->hasDefaultVisualId() ? connection()->defaultVisualId() |