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Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeflickable.cpp')
-rw-r--r--src/declarative/graphicsitems/qdeclarativeflickable.cpp32
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();