diff options
Diffstat (limited to 'src/declarative/graphicsitems')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativegridview.cpp | 4 | ||||
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativelistview.cpp | 46 |
2 files changed, 35 insertions, 15 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativegridview.cpp b/src/declarative/graphicsitems/qdeclarativegridview.cpp index 12ede34..30f04f6 100644 --- a/src/declarative/graphicsitems/qdeclarativegridview.cpp +++ b/src/declarative/graphicsitems/qdeclarativegridview.cpp @@ -815,7 +815,7 @@ void QDeclarativeGridViewPrivate::flick(AxisData &data, qreal minExtent, qreal m if (snapMode != QDeclarativeGridView::SnapToRow && highlightRange != QDeclarativeGridView::StrictlyEnforceRange) data.flickTarget = maxExtent; } - if ((maxDistance > 0 || overShoot) && (snapMode != QDeclarativeGridView::NoSnap || highlightRange == QDeclarativeGridView::StrictlyEnforceRange)) { + if (maxDistance > 0 || overShoot) { // This mode requires the grid to stop exactly on a row boundary. qreal v = velocity; if (maxVelocity != -1 && maxVelocity < qAbs(v)) { @@ -1856,6 +1856,8 @@ void QDeclarativeGridView::itemsInserted(int modelIndex, int count) if (d->currentItem) d->currentItem->index = d->currentIndex; emit currentIndexChanged(); + } else if (d->currentIndex < 0) { + d->updateCurrent(0); } emit countChanged(); return; diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp index cbf8eac..308612f 100644 --- a/src/declarative/graphicsitems/qdeclarativelistview.cpp +++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp @@ -305,7 +305,7 @@ public: if (item->index == -1) continue; qreal itemTop = item->position(); - if (item->index == model->count()-1 || (itemTop+item->size()/2 >= pos)) + if (itemTop+item->size()/2 >= pos && itemTop <= pos) return item->position(); } if (visibleItems.count()) { @@ -1153,7 +1153,7 @@ void QDeclarativeListViewPrivate::flick(AxisData &data, qreal minExtent, qreal m maxDistance = qAbs(minExtent - data.move.value()); } } - if (snapMode != QDeclarativeListView::SnapToItem && highlightRange != QDeclarativeListView::StrictlyEnforceRange) + if (snapMode == QDeclarativeListView::NoSnap && highlightRange != QDeclarativeListView::StrictlyEnforceRange) data.flickTarget = minExtent; } else { if (data.move.value() > maxExtent) { @@ -1164,10 +1164,10 @@ void QDeclarativeListViewPrivate::flick(AxisData &data, qreal minExtent, qreal m maxDistance = qAbs(maxExtent - data.move.value()); } } - if (snapMode != QDeclarativeListView::SnapToItem && highlightRange != QDeclarativeListView::StrictlyEnforceRange) + if (snapMode == QDeclarativeListView::NoSnap && highlightRange != QDeclarativeListView::StrictlyEnforceRange) data.flickTarget = maxExtent; } - if ((maxDistance > 0 || overShoot) && (snapMode != QDeclarativeListView::NoSnap || highlightRange == QDeclarativeListView::StrictlyEnforceRange)) { + if (maxDistance > 0 || overShoot) { // These modes require the list to stop exactly on an item boundary. // The initial flick will estimate the boundary to stop on. // Since list items can have variable sizes, the boundary will be @@ -1183,18 +1183,35 @@ void QDeclarativeListViewPrivate::flick(AxisData &data, qreal minExtent, qreal m // the initial flick - estimate boundary qreal accel = deceleration; qreal v2 = v * v; - if (maxDistance > 0.0 && v2 / (2.0f * maxDistance) < accel) { - // + averageSize/4 to encourage moving at least one item in the flick direction - qreal dist = v2 / (accel * 2.0) + averageSize/4; - if (v > 0) - dist = -dist; + overshootDist = 0.0; + // + averageSize/4 to encourage moving at least one item in the flick direction + qreal dist = v2 / (accel * 2.0) + averageSize/4; + if (maxDistance > 0) + dist = qMin(dist, maxDistance); + if (v > 0) + dist = -dist; + if ((maxDistance > 0.0 && v2 / (2.0f * maxDistance) < accel) || snapMode == QDeclarativeListView::SnapOneItem) { data.flickTarget = -snapPosAt(-(data.move.value() - highlightRangeStart) + dist) + highlightRangeStart; + if (overShoot) { + if (data.flickTarget >= minExtent) { + overshootDist = overShootDistance(v, vSize); + data.flickTarget += overshootDist; + } else if (data.flickTarget <= maxExtent) { + overshootDist = overShootDistance(v, vSize); + data.flickTarget -= overshootDist; + } + } dist = -data.flickTarget + data.move.value(); accel = v2 / (2.0f * qAbs(dist)); - overshootDist = 0.0; - } else { - data.flickTarget = velocity > 0 ? minExtent : maxExtent; - overshootDist = overShoot ? overShootDistance(v, vSize) : 0; + } else if (overShoot) { + data.flickTarget = data.move.value() - dist; + if (data.flickTarget >= minExtent) { + overshootDist = overShootDistance(v, vSize); + data.flickTarget += overshootDist; + } else if (data.flickTarget <= maxExtent) { + overshootDist = overShootDistance(v, vSize); + data.flickTarget -= overshootDist; + } } timeline.reset(data.move); timeline.accel(data.move, v, accel, maxDistance + overshootDist); @@ -2381,6 +2398,8 @@ void QDeclarativeListView::itemsInserted(int modelIndex, int count) if (d->currentItem) d->currentItem->index = d->currentIndex; emit currentIndexChanged(); + } else if (d->currentIndex < 0) { + d->updateCurrent(0); } emit countChanged(); return; @@ -2743,7 +2762,6 @@ void QDeclarativeListView::destroyingItem(QDeclarativeItem *item) void QDeclarativeListView::animStopped() { Q_D(QDeclarativeListView); - d->moveReason = QDeclarativeListViewPrivate::Other; d->bufferMode = QDeclarativeListViewPrivate::NoBuffer; } |