From 5e6bbbc1b86905c4c64aba34632b668ef44dc8f4 Mon Sep 17 00:00:00 2001 From: Mathieu Velten Date: Wed, 6 Jun 2018 18:07:03 +0200 Subject: xcb: use 128 as a reference DPI for small screens This is a better version of 23b139038a1dc9a769a358ab112453abcdd39290 which was reverted. Task-number: QTBUG-68620 Task-number: QTBUG-53022 Task-number: QTBUG-57211 Change-Id: I0b37fc261945c542bbfb30cecfe4b0a97c655e3c Reviewed-by: Shawn Rutledge --- src/plugins/platforms/xcb/qxcbscreen.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/plugins/platforms') diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp index 8c0ce8dd7e..35e90e4206 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.cpp +++ b/src/plugins/platforms/xcb/qxcbscreen.cpp @@ -747,7 +747,11 @@ void QXcbScreen::updateGeometry(const QRect &geometry, uint8_t rotation) m_sizeMillimeters = sizeInMillimeters(geometry.size(), m_virtualDesktop->dpi()); qreal dpi = geometry.width() / physicalSize().width() * qreal(25.4); - m_pixelDensity = qMax(1, qRound(dpi/96)); + + // Use 128 as a reference DPI on small screens. This favors "small UI" over "large UI". + qreal referenceDpi = physicalSize().width() <= 320 ? 128 : 96; + + m_pixelDensity = qMax(1, qRound(dpi/referenceDpi)); m_geometry = geometry; m_availableGeometry = geometry & m_virtualDesktop->workArea(); QWindowSystemInterface::handleScreenGeometryChange(QPlatformScreen::screen(), m_geometry, m_availableGeometry); -- cgit v1.2.3