diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativelistview.cpp')
-rw-r--r-- | src/declarative/graphicsitems/qdeclarativelistview.cpp | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp index 845da79..2a7f508 100644 --- a/src/declarative/graphicsitems/qdeclarativelistview.cpp +++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp @@ -265,6 +265,8 @@ public: } } pos = (*(--visibleItems.constEnd()))->endPosition() + invisibleCount * (averageSize + spacing); + } else if (model && model->count()) { + pos = model->count() * averageSize + (model->count()-1) * spacing; } return pos; } @@ -739,16 +741,20 @@ void QDeclarativeListViewPrivate::layout() return; } if (!visibleItems.isEmpty()) { - qreal oldEnd = visibleItems.last()->endPosition(); + bool fixedCurrent = currentItem && visibleItems.first()->item == currentItem->item; + qreal sum = visibleItems.first()->size(); qreal pos = visibleItems.first()->position() + visibleItems.first()->size() + spacing; for (int i=1; i < visibleItems.count(); ++i) { FxListItem *item = visibleItems.at(i); item->setPosition(pos); pos += item->size() + spacing; + sum += item->size(); + fixedCurrent = fixedCurrent || (currentItem && item->item == currentItem->item); } - // move current item if it is after the visible items. - if (currentItem && currentIndex > lastVisibleIndex()) - currentItem->setPosition(currentItem->position() + (visibleItems.last()->endPosition() - oldEnd)); + averageSize = qRound(sum / visibleItems.count()); + // move current item if it is not a visible item. + if (currentIndex >= 0 && currentItem && !fixedCurrent) + currentItem->setPosition(positionAt(currentIndex)); } q->refill(); minExtentDirty = true; @@ -1046,6 +1052,8 @@ void QDeclarativeListViewPrivate::updateCurrent(int modelIndex) // This is slightly sub-optimal, but section heading caching minimizes the impact. if (currentItem->section) currentItem->section->setVisible(false); + if (visibleItems.isEmpty()) + averageSize = currentItem->size(); } updateHighlight(); emit q->currentIndexChanged(); @@ -1567,10 +1575,12 @@ void QDeclarativeListView::setModel(const QVariant &model) d->moveReason = QDeclarativeListViewPrivate::SetIndex; d->updateCurrent(d->currentIndex); if (d->highlight && d->currentItem) { - d->highlight->setPosition(d->currentItem->position()); + if (d->autoHighlight) + d->highlight->setPosition(d->currentItem->position()); d->updateTrackedItem(); } } + d->updateViewport(); } connect(d->model, SIGNAL(itemsInserted(int,int)), this, SLOT(itemsInserted(int,int))); connect(d->model, SIGNAL(itemsRemoved(int,int)), this, SLOT(itemsRemoved(int,int))); @@ -1638,9 +1648,11 @@ void QDeclarativeListView::setDelegate(QDeclarativeComponent *delegate) d->moveReason = QDeclarativeListViewPrivate::SetIndex; d->updateCurrent(d->currentIndex); if (d->highlight && d->currentItem) { - d->highlight->setPosition(d->currentItem->position()); + if (d->autoHighlight) + d->highlight->setPosition(d->currentItem->position()); d->updateTrackedItem(); } + d->updateViewport(); } } emit delegateChanged(); @@ -2628,8 +2640,10 @@ void QDeclarativeListView::positionViewAtIndex(int index, int mode) cancelFlick(); d->setPosition(pos); if (d->highlight) { - d->highlight->setPosition(d->currentItem->itemPosition()); - d->highlight->setSize(d->currentItem->itemSize()); + if (d->autoHighlight) { + d->highlight->setPosition(d->currentItem->itemPosition()); + d->highlight->setSize(d->currentItem->itemSize()); + } d->updateHighlight(); } } @@ -2675,7 +2689,8 @@ void QDeclarativeListView::componentComplete() else d->updateCurrent(d->currentIndex); if (d->highlight && d->currentItem) { - d->highlight->setPosition(d->currentItem->position()); + if (d->autoHighlight) + d->highlight->setPosition(d->currentItem->position()); d->updateTrackedItem(); } d->moveReason = QDeclarativeListViewPrivate::Other; @@ -3138,7 +3153,8 @@ void QDeclarativeListView::modelReset() d->moveReason = QDeclarativeListViewPrivate::SetIndex; d->updateCurrent(d->currentIndex); if (d->highlight && d->currentItem) { - d->highlight->setPosition(d->currentItem->position()); + if (d->autoHighlight) + d->highlight->setPosition(d->currentItem->position()); d->updateTrackedItem(); } d->moveReason = QDeclarativeListViewPrivate::Other; |