diff options
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativelistview.cpp | 71 |
1 files changed, 56 insertions, 15 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp index 1c634d2..2eae0af 100644 --- a/src/declarative/graphicsitems/qdeclarativelistview.cpp +++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp @@ -105,12 +105,23 @@ public: else return (view->orientation() == QDeclarativeListView::Vertical ? item->y() : item->x()); } + qreal itemPosition() const { + return (view->orientation() == QDeclarativeListView::Vertical ? item->y() : item->x()); + } qreal size() const { if (section) - return (view->orientation() == QDeclarativeListView::Vertical ? item->height()+section->height() : item->width()+section->height()); + return (view->orientation() == QDeclarativeListView::Vertical ? item->height()+section->height() : item->width()+section->width()); else return (view->orientation() == QDeclarativeListView::Vertical ? item->height() : item->width()); } + qreal itemSize() const { + return (view->orientation() == QDeclarativeListView::Vertical ? item->height() : item->width()); + } + qreal sectionSize() const { + if (section) + return (view->orientation() == QDeclarativeListView::Vertical ? section->height() : section->width()); + return 0.0; + } qreal endPosition() const { return (view->orientation() == QDeclarativeListView::Vertical ? item->y() + (item->height() > 0 ? item->height() : 1) @@ -131,6 +142,12 @@ public: item->setX(pos); } } + void setSize(qreal size) { + if (view->orientation() == QDeclarativeListView::Vertical) + item->setHeight(size); + else + item->setWidth(size); + } bool contains(int x, int y) const { return (x >= item->x() && x < item->x() + item->width() && y >= item->y() && y < item->y() + item->height()); @@ -256,7 +273,12 @@ public: if (!visibleItems.isEmpty()) { if (modelIndex < visibleIndex) { int count = visibleIndex - modelIndex; - return (*visibleItems.constBegin())->position() - count * (averageSize + spacing); + qreal cs = 0; + if (modelIndex == currentIndex && currentItem) { + cs = currentItem->size() + spacing; + --count; + } + return (*visibleItems.constBegin())->position() - count * (averageSize + spacing) - cs; } else { int idx = visibleItems.count() - 1; while (idx >= 0 && visibleItems.at(idx)->index == -1) @@ -716,6 +738,11 @@ void QDeclarativeListViewPrivate::refill(qreal from, qreal to, bool doBuffer) if (visibleItems.count()) visiblePos = (*visibleItems.constBegin())->position(); updateAverage(); + if (currentIndex >= 0 && currentItem && !visibleItem(currentIndex)) { + currentItem->setPosition(positionAt(currentIndex)); + updateHighlight(); + } + if (sectionCriteria) updateCurrentSection(); if (header) @@ -885,8 +912,8 @@ void QDeclarativeListViewPrivate::updateHighlight() createHighlight(); if (currentItem && autoHighlight && highlight && !movingHorizontally && !movingVertically) { // auto-update highlight - highlightPosAnimator->to = currentItem->position(); - highlightSizeAnimator->to = currentItem->size(); + highlightPosAnimator->to = currentItem->itemPosition(); + highlightSizeAnimator->to = currentItem->itemSize(); if (orient == QDeclarativeListView::Vertical) { if (highlight->item->width() == 0) highlight->item->setWidth(currentItem->item->width()); @@ -987,7 +1014,7 @@ void QDeclarativeListViewPrivate::updateCurrentSection() return; } int index = 0; - while (visibleItems.at(index)->endPosition() < position() && index < visibleItems.count()) + while (index < visibleItems.count() && visibleItems.at(index)->endPosition() < position()) ++index; if (index < visibleItems.count()) @@ -1172,9 +1199,9 @@ void QDeclarativeListViewPrivate::fixup(AxisData &data, qreal minExtent, qreal m } if (currentItem && haveHighlightRange && highlightRange == QDeclarativeListView::StrictlyEnforceRange) { updateHighlight(); - qreal currPos = currentItem->position(); - if (pos < currPos + currentItem->size() - highlightRangeEnd) - pos = currPos + currentItem->size() - highlightRangeEnd; + qreal currPos = currentItem->itemPosition(); + if (pos < currPos + currentItem->itemSize() - highlightRangeEnd) + pos = currPos + currentItem->itemSize() - highlightRangeEnd; if (pos > currPos - highlightRangeStart) pos = currPos - highlightRangeStart; } @@ -1191,10 +1218,10 @@ void QDeclarativeListViewPrivate::fixup(AxisData &data, qreal minExtent, qreal m } else if (haveHighlightRange && highlightRange == QDeclarativeListView::StrictlyEnforceRange) { if (currentItem) { updateHighlight(); - qreal pos = currentItem->position(); + qreal pos = currentItem->itemPosition(); qreal viewPos = position(); - if (viewPos < pos + currentItem->size() - highlightRangeEnd) - viewPos = pos + currentItem->size() - highlightRangeEnd; + if (viewPos < pos + currentItem->itemSize() - highlightRangeEnd) + viewPos = pos + currentItem->itemSize() - highlightRangeEnd; if (viewPos > pos - highlightRangeStart) viewPos = pos - highlightRangeStart; @@ -2342,6 +2369,10 @@ qreal QDeclarativeListView::minYExtent() const d->minExtent += d->header->size(); if (d->haveHighlightRange && d->highlightRange == StrictlyEnforceRange) { d->minExtent += d->highlightRangeStart; + if (d->sectionCriteria) { + if (d->visibleItem(0)) + d->minExtent -= d->visibleItem(0)->sectionSize(); + } d->minExtent = qMax(d->minExtent, -(d->endPositionAt(0) - d->highlightRangeEnd + 1)); } d->minExtentDirty = false; @@ -2589,6 +2620,11 @@ void QDeclarativeListView::positionViewAtIndex(int index, int mode) d->moveReason = QDeclarativeListViewPrivate::Other; cancelFlick(); d->setPosition(pos); + if (d->highlight) { + d->highlight->setPosition(d->currentItem->itemPosition()); + d->highlight->setSize(d->currentItem->itemSize()); + d->updateHighlight(); + } } d->fixupPosition(); } @@ -2649,7 +2685,12 @@ void QDeclarativeListView::trackedPositionChanged() if (!d->trackedItem || !d->currentItem) return; if (d->moveReason == QDeclarativeListViewPrivate::SetIndex) { - const qreal trackedPos = qCeil(d->trackedItem->position()); + qreal trackedPos = qCeil(d->trackedItem->position()); + qreal trackedSize = d->trackedItem->size(); + if (d->trackedItem != d->currentItem) { + trackedPos -= d->currentItem->sectionSize(); + trackedSize += d->currentItem->sectionSize(); + } const qreal viewPos = d->position(); qreal pos = viewPos; if (d->haveHighlightRange) { @@ -2668,8 +2709,8 @@ void QDeclarativeListView::trackedPositionChanged() } else { if (trackedPos < viewPos + d->highlightRangeStart) { pos = trackedPos - d->highlightRangeStart; - } else if (trackedPos > viewPos + d->highlightRangeEnd - d->trackedItem->size()) { - pos = trackedPos - d->highlightRangeEnd + d->trackedItem->size(); + } else if (trackedPos > viewPos + d->highlightRangeEnd - trackedSize) { + pos = trackedPos - d->highlightRangeEnd + trackedSize; } } } @@ -2680,7 +2721,7 @@ void QDeclarativeListView::trackedPositionChanged() && d->currentItem->endPosition() >= viewPos + d->size()) { if (d->trackedItem->endPosition() <= d->currentItem->endPosition()) { pos = d->trackedItem->endPosition() - d->size() + 1; - if (d->trackedItem->size() > d->size()) + if (trackedSize > d->size()) pos = trackedPos; } else { pos = d->currentItem->endPosition() - d->size() + 1; |