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  1. Qt
  2. QTBUG-55619

Bad defaults for QScroller on Windows

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Details

    • Suggestion
    • Resolution: Unresolved
    • P5: Not important
    • None
    • 5.7.0
    • Widgets: Gesture Support
    • None

    • Windows 8.1

    Description

      Comparing with scrolling on the other platforms (like iOS and Android), current defaults for QScroller overshoots extremely and scrolls with too much velocity. Properties provided below (taken from http://www.qtcentre.org/threads/57352-QScroller-speed-and-touch-screen) resembles other platforms. I think these properties deserves to be defaults compared to the current defaults.

      prop.setScrollMetric(QScrollerProperties::AxisLockThreshold, 0.66);
prop.setScrollMetric(QScrollerProperties::ScrollingCurve, QEasingCurve(QEasingCurve::OutExpo));
prop.setScrollMetric(QScrollerProperties::DecelerationFactor, 0.05);
prop.setScrollMetric(QScrollerProperties::MaximumVelocity, 0.635);
prop.setScrollMetric(QScrollerProperties::OvershootDragResistanceFactor, 0.33);
prop.setScrollMetric(QScrollerProperties::OvershootScrollDistanceFactor, 0.33);
prop.setScrollMetric(QScrollerProperties::SnapPositionRatio, 0.93);
prop.setScrollMetric(QScrollerProperties::DragStartDistance, 0.001);

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-60192 QScroller is too fast on widgets with scrollMode QAbstractItemView::ScrollPerItem

          • P4: Low - Would be nice to fix, but it's not very important.
          • Reported
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              qt.team.quick.subscriptions Qt Quick and Widgets Team
              bdemirkir Berk Demirkir
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                Created:
                Updated:

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