diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeflickable.cpp')
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativeflickable.cpp | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp index 7fee44e..a710190 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp +++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp @@ -54,7 +54,7 @@ QT_BEGIN_NAMESPACE static const int FlickThreshold = 20; // Really slow flicks can be annoying. -static const int minimumFlickVelocity = 200; +static const int MinimumFlickVelocity = 75; QDeclarativeFlickableVisibleArea::QDeclarativeFlickableVisibleArea(QDeclarativeFlickable *parent) : QObject(parent), flickable(parent), m_xPosition(0.), m_widthRatio(0.) @@ -653,6 +653,8 @@ void QDeclarativeFlickablePrivate::handleMousePressEvent(QGraphicsSceneMouseEven timeline.clear(); hData.velocity = 0; vData.velocity = 0; + hData.dragStartOffset = 0; + vData.dragStartOffset = 0; lastPos = QPoint(); QDeclarativeItemPrivate::start(lastPosTime); pressPos = event->pos(); @@ -675,7 +677,9 @@ void QDeclarativeFlickablePrivate::handleMouseMoveEvent(QGraphicsSceneMouseEvent if (q->yflick()) { int dy = int(event->pos().y() - pressPos.y()); if (qAbs(dy) > QApplication::startDragDistance() || QDeclarativeItemPrivate::elapsed(pressTime) > 200) { - qreal newY = dy + vData.pressPos; + if (!vMoved) + vData.dragStartOffset = dy; + qreal newY = dy + vData.pressPos - vData.dragStartOffset; const qreal minY = q->minYExtent(); const qreal maxY = q->maxYExtent(); if (newY > minY) @@ -705,7 +709,9 @@ void QDeclarativeFlickablePrivate::handleMouseMoveEvent(QGraphicsSceneMouseEvent if (q->xflick()) { int dx = int(event->pos().x() - pressPos.x()); if (qAbs(dx) > QApplication::startDragDistance() || QDeclarativeItemPrivate::elapsed(pressTime) > 200) { - qreal newX = dx + hData.pressPos; + if (!hMoved) + hData.dragStartOffset = dx; + qreal newX = dx + hData.pressPos - hData.dragStartOffset; const qreal minX = q->minXExtent(); const qreal maxX = q->maxXExtent(); if (newX > minX) @@ -779,23 +785,15 @@ void QDeclarativeFlickablePrivate::handleMouseReleaseEvent(QGraphicsSceneMouseEv } vTime = timeline.time(); - if (qAbs(vData.velocity) > 10 && qAbs(event->pos().y() - pressPos.y()) > FlickThreshold) { - qreal velocity = vData.velocity; - if (qAbs(velocity) < minimumFlickVelocity) // Minimum velocity to avoid annoyingly slow flicks. - velocity = velocity < 0 ? -minimumFlickVelocity : minimumFlickVelocity; - flickY(velocity); - } else { + if (qAbs(vData.velocity) > MinimumFlickVelocity && qAbs(event->pos().y() - pressPos.y()) > FlickThreshold) + flickY(vData.velocity); + else fixupY(); - } - if (qAbs(hData.velocity) > 10 && qAbs(event->pos().x() - pressPos.x()) > FlickThreshold) { - qreal velocity = hData.velocity; - if (qAbs(velocity) < minimumFlickVelocity) // Minimum velocity to avoid annoyingly slow flicks. - velocity = velocity < 0 ? -minimumFlickVelocity : minimumFlickVelocity; - flickX(velocity); - } else { + if (qAbs(hData.velocity) > MinimumFlickVelocity && qAbs(event->pos().x() - pressPos.x()) > FlickThreshold) + flickX(hData.velocity); + else fixupX(); - } lastPosTime.invalidate(); |