diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativeflickable.cpp')
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativeflickable.cpp | 85 |
1 files changed, 45 insertions, 40 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp index c3898da..f32d62b 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp +++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp @@ -122,7 +122,7 @@ void QDeclarativeFlickableVisibleArea::updateVisible() QDeclarativeFlickablePrivate::QDeclarativeFlickablePrivate() - : viewport(new QDeclarativeItem) + : contentItem(new QDeclarativeItem) , hData(this, &QDeclarativeFlickablePrivate::setRoundedViewportX) , vData(this, &QDeclarativeFlickablePrivate::setRoundedViewportY) , flickingHorizontally(false), flickingVertically(false) @@ -140,8 +140,8 @@ QDeclarativeFlickablePrivate::QDeclarativeFlickablePrivate() void QDeclarativeFlickablePrivate::init() { Q_Q(QDeclarativeFlickable); - QDeclarative_setParent_noEvent(viewport, q); - viewport->setParentItem(q); + QDeclarative_setParent_noEvent(contentItem, q); + contentItem->setParentItem(q); static int timelineUpdatedIdx = -1; static int timelineCompletedIdx = -1; static int flickableTickedIdx = -1; @@ -158,7 +158,7 @@ void QDeclarativeFlickablePrivate::init() q, flickableMovementEndingIdx, Qt::DirectConnection); q->setAcceptedMouseButtons(Qt::LeftButton); q->setFiltersChildEvents(true); - QDeclarativeItemPrivate *viewportPrivate = static_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(viewport)); + QDeclarativeItemPrivate *viewportPrivate = static_cast<QDeclarativeItemPrivate*>(QGraphicsItemPrivate::get(contentItem)); viewportPrivate->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry); lastPosTime.invalidate(); } @@ -182,7 +182,7 @@ qreal QDeclarativeFlickablePrivate::overShootDistance(qreal velocity, qreal size void QDeclarativeFlickablePrivate::itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeom, const QRectF &oldGeom) { Q_Q(QDeclarativeFlickable); - if (item == viewport) { + if (item == contentItem) { if (newGeom.x() != oldGeom.x()) emit q->contentXChanged(); if (newGeom.y() != oldGeom.y()) @@ -579,10 +579,28 @@ void QDeclarativeFlickable::ticked() viewportMoved(); } -QDeclarativeItem *QDeclarativeFlickable::viewport() +/*! + \qmlproperty Item Flickable::contentItem + + The internal item that contains the Items to be moved in the Flickable. + + Items declared as children of a Flickable are automatically parented to the Flickable's contentItem. + + Items created dynamically need to be explicitly parented to the \e contentItem: + \code + Flickable { + id: myFlickable + function addItem(file) { + var component = Qt.createComponent(file) + component.createObject(myFlickable.contentItem); + } + } + \endcode +*/ +QDeclarativeItem *QDeclarativeFlickable::contentItem() { Q_D(QDeclarativeFlickable); - return d->viewport; + return d->contentItem; } QDeclarativeFlickableVisibleArea *QDeclarativeFlickable::visibleArea() @@ -623,18 +641,6 @@ void QDeclarativeFlickable::setFlickableDirection(FlickableDirection direction) } } -QDeclarativeFlickable::FlickableDirection QDeclarativeFlickable::flickDirection() const -{ - qmlInfo(this) << "'flickDirection' is deprecated. Please use 'flickableDirection' instead."; - return flickableDirection(); -} - -void QDeclarativeFlickable::setFlickDirection(FlickableDirection direction) -{ - qmlInfo(this) << "'flickDirection' is deprecated. Please use 'flickableDirection' instead."; - setFlickableDirection(direction); -} - void QDeclarativeFlickablePrivate::handleMousePressEvent(QGraphicsSceneMouseEvent *event) { if (interactive && timeline.isActive() && (qAbs(hData.velocity) > 10 || qAbs(vData.velocity) > 10)) @@ -899,12 +905,12 @@ void QDeclarativeFlickablePrivate::clearDelayedPress() void QDeclarativeFlickablePrivate::setRoundedViewportX(qreal x) { - viewport->setX(qRound(x)); + contentItem->setX(qRound(x)); } void QDeclarativeFlickablePrivate::setRoundedViewportY(qreal y) { - viewport->setY(qRound(y)); + contentItem->setY(qRound(y)); } void QDeclarativeFlickable::timerEvent(QTimerEvent *event) @@ -953,20 +959,19 @@ void QDeclarativeFlickable::viewportMoved() { Q_D(QDeclarativeFlickable); - int elapsed = QDeclarativeItemPrivate::restart(d->velocityTime); - if (!elapsed) - return; - qreal prevY = d->lastFlickablePosition.x(); qreal prevX = d->lastFlickablePosition.y(); d->velocityTimeline.clear(); if (d->pressed) { - qreal horizontalVelocity = (prevX - d->hData.move.value()) * 1000 / elapsed; - qreal verticalVelocity = (prevY - d->vData.move.value()) * 1000 / elapsed; - d->velocityTimeline.move(d->hData.smoothVelocity, horizontalVelocity, d->reportedVelocitySmoothing); - d->velocityTimeline.move(d->hData.smoothVelocity, 0, d->reportedVelocitySmoothing); - d->velocityTimeline.move(d->vData.smoothVelocity, verticalVelocity, d->reportedVelocitySmoothing); - d->velocityTimeline.move(d->vData.smoothVelocity, 0, d->reportedVelocitySmoothing); + int elapsed = QDeclarativeItemPrivate::restart(d->velocityTime); + if (elapsed > 0) { + qreal horizontalVelocity = (prevX - d->hData.move.value()) * 1000 / elapsed; + qreal verticalVelocity = (prevY - d->vData.move.value()) * 1000 / elapsed; + d->velocityTimeline.move(d->hData.smoothVelocity, horizontalVelocity, d->reportedVelocitySmoothing); + d->velocityTimeline.move(d->hData.smoothVelocity, 0, d->reportedVelocitySmoothing); + d->velocityTimeline.move(d->vData.smoothVelocity, verticalVelocity, d->reportedVelocitySmoothing); + d->velocityTimeline.move(d->vData.smoothVelocity, 0, d->reportedVelocitySmoothing); + } } else { if (d->timeline.time() > d->vTime) { qreal horizontalVelocity = (prevX - d->hData.move.value()) * 1000 / (d->timeline.time() - d->vTime); @@ -991,13 +996,13 @@ void QDeclarativeFlickable::geometryChanged(const QRectF &newGeometry, bool changed = false; if (newGeometry.width() != oldGeometry.width()) { if (d->hData.viewSize < 0) { - d->viewport->setWidth(width()); + d->contentItem->setWidth(width()); emit contentWidthChanged(); } } if (newGeometry.height() != oldGeometry.height()) { if (d->vData.viewSize < 0) { - d->viewport->setHeight(height()); + d->contentItem->setHeight(height()); emit contentHeightChanged(); } } @@ -1018,7 +1023,7 @@ void QDeclarativeFlickablePrivate::data_append(QDeclarativeListProperty<QObject> { QDeclarativeItem *i = qobject_cast<QDeclarativeItem *>(o); if (i) - i->setParentItem(static_cast<QDeclarativeFlickablePrivate*>(prop->data)->viewport); + i->setParentItem(static_cast<QDeclarativeFlickablePrivate*>(prop->data)->contentItem); else o->setParent(prop->object); } @@ -1072,7 +1077,7 @@ QDeclarativeListProperty<QObject> QDeclarativeFlickable::flickableData() QDeclarativeListProperty<QGraphicsObject> QDeclarativeFlickable::flickableChildren() { Q_D(QDeclarativeFlickable); - return QGraphicsItemPrivate::get(d->viewport)->childrenList(); + return QGraphicsItemPrivate::get(d->contentItem)->childrenList(); } /*! @@ -1142,9 +1147,9 @@ void QDeclarativeFlickable::setContentWidth(qreal w) return; d->hData.viewSize = w; if (w < 0) - d->viewport->setWidth(width()); + d->contentItem->setWidth(width()); else - d->viewport->setWidth(w); + d->contentItem->setWidth(w); // Make sure that we're entirely in view. if (!d->pressed && !d->movingHorizontally && !d->movingVertically) { int oldDuration = d->fixupDuration; @@ -1169,9 +1174,9 @@ void QDeclarativeFlickable::setContentHeight(qreal h) return; d->vData.viewSize = h; if (h < 0) - d->viewport->setHeight(height()); + d->contentItem->setHeight(height()); else - d->viewport->setHeight(h); + d->contentItem->setHeight(h); // Make sure that we're entirely in view. if (!d->pressed && !d->movingHorizontally && !d->movingVertically) { int oldDuration = d->fixupDuration; @@ -1377,7 +1382,7 @@ bool QDeclarativeFlickable::isFlickingVertically() const This property holds the time to delay (ms) delivering a press to children of the Flickable. This can be useful where reacting - to a press before a flicking action has undesireable effects. + to a press before a flicking action has undesirable effects. If the flickable is dragged/flicked before the delay times out the press event will not be delivered. If the button is released |