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QT_SCREEN_SCALE_FACTORS in many cases set on behalf of the user, instead of by the user, so we should make it less sharp and more in line with standard high-dpi configuration. Specifically, make it subject to the rounding policy set by QGuiApplication::setHighDpiScaleFactorRoundingPolicy(). This means that applications which support integer scale factors only will see integers only, also when QT_SCREEN_SCALE_FACTORS specifies a fractional factor. Users who want to override can set QT_SCALE_FACTOR_ROUNDING_POLICY=PassThrough to restore the default Qt rounding behavior. [ChangeLog][QtGui] The high-DPI scale factor rounding policy (settable with QGuiApplication::setHighDpiScaleFactorRoundingPolicy() or QT_SCALE_FACTOR_ROUNDING_POLICY) now applies to scale factors set with QT_SCREEN_SCALE_FACTORS. Fixes: QTBUG-95930 Fixes: QTBUG-99546 Change-Id: Ibb0aa5cb9d3a356d33429d0efe69d984b2530728 Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io> (cherry picked from commit 1c0a56a2f3300750978f2d6c703b2b917e03e718) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This directory contains autotests and benchmarks based on Qt Test. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.