diff options
-rw-r--r-- | src/quick/items/qquickitemview.cpp | 6 | ||||
-rw-r--r-- | src/quick/items/qquickitemview_p_p.h | 6 | ||||
-rw-r--r-- | src/quick/items/qquicklistview.cpp | 1 |
3 files changed, 12 insertions, 1 deletions
diff --git a/src/quick/items/qquickitemview.cpp b/src/quick/items/qquickitemview.cpp index 120eeb13d5..370ecee01d 100644 --- a/src/quick/items/qquickitemview.cpp +++ b/src/quick/items/qquickitemview.cpp @@ -1784,6 +1784,7 @@ void QQuickItemViewPrivate::refill(qreal from, qreal to) if (prevCount != itemCount) emit q->countChanged(); } while (currentChanges.hasPendingChanges() || bufferedChanges.hasPendingChanges()); + storeFirstVisibleItemPosition(); } void QQuickItemViewPrivate::regenerate(bool orientationChanged) @@ -1870,6 +1871,7 @@ void QQuickItemViewPrivate::layout() updateSections(); layoutVisibleItems(); + storeFirstVisibleItemPosition(); int lastIndexInView = findLastIndexInView(); refill(); @@ -1954,7 +1956,7 @@ bool QQuickItemViewPrivate::applyModelChanges(ChangeResult *totalInsertionResult prevFirstItemInViewPos = prevFirstItemInView->position(); prevFirstItemInViewIndex = prevFirstItemInView->index; } - qreal prevVisibleItemsFirstPos = visibleItems.count() ? visibleItems.constFirst()->position() : 0.0; + qreal prevVisibleItemsFirstPos = visibleItems.count() ? firstVisibleItemPosition : 0.0; totalInsertionResult->visiblePos = prevFirstItemInViewPos; totalRemovalResult->visiblePos = prevFirstItemInViewPos; @@ -2000,6 +2002,7 @@ bool QQuickItemViewPrivate::applyModelChanges(ChangeResult *totalInsertionResult if (!insertions.isEmpty()) { repositionFirstItem(prevVisibleItemsFirst, prevVisibleItemsFirstPos, prevFirstItemInView, &insertionResult, &removalResult); layoutVisibleItems(removals.first().index); + storeFirstVisibleItemPosition(); } } @@ -2020,6 +2023,7 @@ bool QQuickItemViewPrivate::applyModelChanges(ChangeResult *totalInsertionResult if (i < insertions.count() - 1) { repositionFirstItem(prevVisibleItemsFirst, prevVisibleItemsFirstPos, prevFirstItemInView, &insertionResult, &removalResult); layoutVisibleItems(insertions[i].index); + storeFirstVisibleItemPosition(); } itemCount += insertions[i].count; } diff --git a/src/quick/items/qquickitemview_p_p.h b/src/quick/items/qquickitemview_p_p.h index 1f42c847b3..325b91d190 100644 --- a/src/quick/items/qquickitemview_p_p.h +++ b/src/quick/items/qquickitemview_p_p.h @@ -258,6 +258,12 @@ public: MovementReason moveReason; QList<FxViewItem *> visibleItems; + qreal firstVisibleItemPosition = 0; + void storeFirstVisibleItemPosition() { + if (!visibleItems.isEmpty()) { + firstVisibleItemPosition = visibleItems.constFirst()->position(); + } + } int visibleIndex; int currentIndex; FxViewItem *currentItem; diff --git a/src/quick/items/qquicklistview.cpp b/src/quick/items/qquicklistview.cpp index 8b70ffd0d7..ebae4d14ea 100644 --- a/src/quick/items/qquicklistview.cpp +++ b/src/quick/items/qquicklistview.cpp @@ -805,6 +805,7 @@ void QQuickListViewPrivate::layoutVisibleItems(int fromModelIndex) FxViewItem *firstItem = *visibleItems.constBegin(); bool fixedCurrent = currentItem && firstItem->item == currentItem->item; + firstVisibleItemPosition = firstItem->position(); qreal sum = firstItem->size(); qreal pos = firstItem->position() + firstItem->size() + spacing; firstItem->setVisible(firstItem->endPosition() >= from && firstItem->position() <= to); |