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fix: lazy list view overshoot

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2 * r + 2 * t 2026-04-09 17:49:03 +10:00
parent 0682397384
commit 3f72dde918
1 changed files with 14 additions and 2 deletions
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16
plugin/src/Caelestia/Components/lazylistview.cpp
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@ -492,10 +492,22 @@ void LazyListView::relayout() {
} }
QRectF LazyListView::effectiveViewport() const { QRectF LazyListView::effectiveViewport() const {
QRectF vp;
if (m_useCustomViewport) if (m_useCustomViewport)
return m_viewport.adjusted(0, -m_cacheBuffer, 0, m_cacheBuffer); vp = m_viewport;
else
vp = QRectF(0, m_contentY, width(), height());
return QRectF(0, m_contentY - m_cacheBuffer, width(), height() + 2 * m_cacheBuffer); // During Flickable overshoot the viewport can extend entirely beyond content bounds,
// causing all delegates to be culled. Clamp so it always overlaps [0, layoutHeight].
if (m_layoutHeight > 0) {
const qreal top = std::min(vp.y(), m_layoutHeight);
const qreal bottom = std::max(vp.y() + vp.height(), 0.0);
if (bottom > top)
vp = QRectF(vp.x(), top, vp.width(), bottom - top);
}
return vp.adjusted(0, -m_cacheBuffer, 0, m_cacheBuffer);
} }
std::pair<int, int> LazyListView::computeVisibleRange() const { std::pair<int, int> LazyListView::computeVisibleRange() const {