diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativelistview.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativelistview.cpp | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp index 9dbbb749b5..3190d7e209 100644 --- a/src/declarative/graphicsitems/qdeclarativelistview.cpp +++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp @@ -744,6 +744,28 @@ void QDeclarativeListViewPrivate::refill(qreal from, qreal to, bool doBuffer) if (visibleItems.at(i)->index != -1) modelIndex = visibleItems.at(i)->index + 1; } + + if (visibleItems.count() && (fillFrom > itemEnd+averageSize+spacing + || fillTo < visiblePos - averageSize - spacing)) { + // We've jumped more than a page. Estimate which items are now + // visible and fill from there. + int count = (fillFrom - itemEnd) / (averageSize + spacing); + for (int i = 0; i < visibleItems.count(); ++i) + releaseItem(visibleItems.at(i)); + visibleItems.clear(); + modelIndex += count; + if (modelIndex >= model->count()) { + count -= modelIndex - model->count() + 1; + modelIndex = model->count() - 1; + } else if (modelIndex < 0) { + count -= modelIndex; + modelIndex = 0; + } + visibleIndex = modelIndex; + visiblePos = itemEnd + count * (averageSize + spacing) + 1; + itemEnd = visiblePos-1; + } + bool changed = false; FxListItem *item = 0; qreal pos = itemEnd + 1; @@ -2119,9 +2141,11 @@ void QDeclarativeListView::setOrientation(QDeclarativeListView::Orientation orie if (d->orient == QDeclarativeListView::Vertical) { setContentWidth(-1); setFlickableDirection(VerticalFlick); + setContentX(0); } else { setContentHeight(-1); setFlickableDirection(HorizontalFlick); + setContentY(0); } d->regenerate(); emit orientationChanged(); @@ -2278,11 +2302,19 @@ void QDeclarativeListView::setCacheBuffer(int b) depending on the "size" property of the model item. The \c sectionHeading delegate component provides the light blue bar that marks the beginning of each section. + \snippet examples/declarative/modelviews/listview/sections.qml 0 \image qml-listview-sections-example.png + \note Adding sections to a ListView does not automatically re-order the + list items by the section criteria. + If the model is not ordered by section, then it is possible that + the sections created will not be unique; each boundary between + differing sections will result in a section header being created + even if that section exists elsewhere. + \sa {declarative/modelviews/listview}{ListView examples} */ QDeclarativeViewSection *QDeclarativeListView::sectionCriteria() @@ -2768,7 +2800,7 @@ void QDeclarativeListView::keyPressEvent(QKeyEvent *event) return; if (d->model && d->model->count() && d->interactive) { - if ((!d->isRightToLeft() && event->key() == Qt::Key_Left) + if ((d->orient == QDeclarativeListView::Horizontal && !d->isRightToLeft() && event->key() == Qt::Key_Left) || (d->orient == QDeclarativeListView::Horizontal && d->isRightToLeft() && event->key() == Qt::Key_Right) || (d->orient == QDeclarativeListView::Vertical && event->key() == Qt::Key_Up)) { if (currentIndex() > 0 || (d->wrap && !event->isAutoRepeat())) { @@ -2779,7 +2811,7 @@ void QDeclarativeListView::keyPressEvent(QKeyEvent *event) event->accept(); return; } - } else if ((!d->isRightToLeft() && event->key() == Qt::Key_Right) + } else if ((d->orient == QDeclarativeListView::Horizontal && !d->isRightToLeft() && event->key() == Qt::Key_Right) || (d->orient == QDeclarativeListView::Horizontal && d->isRightToLeft() && event->key() == Qt::Key_Left) || (d->orient == QDeclarativeListView::Vertical && event->key() == Qt::Key_Down)) { if (currentIndex() < d->model->count() - 1 || (d->wrap && !event->isAutoRepeat())) { |