diff options
Diffstat (limited to 'src/quick/items/qquickflickable.cpp')
| -rw-r--r-- | src/quick/items/qquickflickable.cpp | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/src/quick/items/qquickflickable.cpp b/src/quick/items/qquickflickable.cpp index fc4a3efb8e..ea4398bc71 100644 --- a/src/quick/items/qquickflickable.cpp +++ b/src/quick/items/qquickflickable.cpp @@ -1004,7 +1004,8 @@ void QQuickFlickablePrivate::maybeBeginDrag(qint64 currentTimestamp, const QPoin } void QQuickFlickablePrivate::drag(qint64 currentTimestamp, QEvent::Type eventType, const QPointF &localPos, - const QVector2D &deltas, bool overThreshold, bool momentum, const QVector2D &velocity) + const QVector2D &deltas, bool overThreshold, bool momentum, + bool velocitySensitiveOverBounds, const QVector2D &velocity) { Q_Q(QQuickFlickable); bool rejectY = false; @@ -1061,9 +1062,13 @@ void QQuickFlickablePrivate::drag(qint64 currentTimestamp, QEvent::Type eventTyp } return; } - qreal overshoot = (newY - minY) * vData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; - overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); - newY = minY + overshoot; + if (velocitySensitiveOverBounds) { + qreal overshoot = (newY - minY) * vData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; + overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); + newY = minY + overshoot; + } else { + newY = minY + (newY - minY) / 2; + } } else if (newY < maxY && maxY - minY <= 0) { // Overshoot beyond the bottom. But don't wait for momentum phase to end before returning to bounds. if (momentum && vData.atEnd) { @@ -1073,9 +1078,13 @@ void QQuickFlickablePrivate::drag(qint64 currentTimestamp, QEvent::Type eventTyp } return; } - qreal overshoot = (newY - maxY) * vData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; - overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); - newY = maxY - overshoot; + if (velocitySensitiveOverBounds) { + qreal overshoot = (newY - maxY) * vData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; + overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); + newY = maxY - overshoot; + } else { + newY = maxY + (newY - maxY) / 2; + } } } if (!rejectY && stealMouse && dy != 0.0 && dy != vData.previousDragDelta) { @@ -1126,9 +1135,13 @@ void QQuickFlickablePrivate::drag(qint64 currentTimestamp, QEvent::Type eventTyp } return; } - qreal overshoot = (newX - minX) * hData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; - overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); - newX = minX + overshoot; + if (velocitySensitiveOverBounds) { + qreal overshoot = (newX - minX) * hData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; + overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); + newX = minX + overshoot; + } else { + newX = minX + (newX - minX) / 2; + } } else if (newX < maxX && maxX - minX <= 0) { // Overshoot beyond the right. But don't wait for momentum phase to end before returning to bounds. if (momentum && hData.atEnd) { @@ -1138,9 +1151,13 @@ void QQuickFlickablePrivate::drag(qint64 currentTimestamp, QEvent::Type eventTyp } return; } - qreal overshoot = (newX - maxX) * hData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; - overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); - newX = maxX - overshoot; + if (velocitySensitiveOverBounds) { + qreal overshoot = (newX - maxX) * hData.velocity / QML_FLICK_DEFAULTMAXVELOCITY / QML_FLICK_OVERSHOOTFRICTION; + overshoot = QML_FLICK_OVERSHOOT * devicePixelRatio() * EaseOvershoot(overshoot / QML_FLICK_OVERSHOOT / devicePixelRatio()); + newX = maxX - overshoot; + } else { + newX = maxX + (newX - maxX) / 2; + } } } @@ -1210,7 +1227,7 @@ void QQuickFlickablePrivate::handleMouseMoveEvent(QMouseEvent *event) if (q->xflick()) overThreshold |= QQuickWindowPrivate::dragOverThreshold(deltas.x(), Qt::XAxis, event); - drag(currentTimestamp, event->type(), event->localPos(), deltas, overThreshold, false, velocity); + drag(currentTimestamp, event->type(), event->localPos(), deltas, overThreshold, false, false, velocity); } void QQuickFlickablePrivate::handleMouseReleaseEvent(QMouseEvent *event) @@ -1433,7 +1450,7 @@ void QQuickFlickable::wheelEvent(QWheelEvent *event) QVector2D velocity(xDelta / elapsed, yDelta / elapsed); d->lastPosTime = currentTimestamp; d->accumulatedWheelPixelDelta += QVector2D(event->pixelDelta()); - d->drag(currentTimestamp, event->type(), event->posF(), d->accumulatedWheelPixelDelta, true, !d->scrollingPhase, velocity); + d->drag(currentTimestamp, event->type(), event->posF(), d->accumulatedWheelPixelDelta, true, !d->scrollingPhase, true, velocity); event->accept(); } |