Method placeExpandingWidget

plugins/quickopen/expandingtree/expandingwidgetmodel.cpp:407–455

}

void ExpandingWidgetModel::placeExpandingWidget(const QModelIndex& idx_)
{
    Q_ASSERT(idx_.model() == this);

    QModelIndex idx(firstColumn(idx_));

    QWidget* w = nullptr;
    const auto widgetIt = m_expandingWidgets.constFind(idx);
    if (widgetIt != m_expandingWidgets.constEnd()) {
        w = *widgetIt;
    }

    if (w && isExpanded(idx)) {
        if (!idx.isValid()) {
            return;
        }

        const QModelIndex viewIndex = mapFromSource(idx_);
        QRect rect = treeView()->visualRect(viewIndex);

        if (!rect.isValid() || rect.bottom() < 0 || rect.top() >= treeView()->height()) {
            //The item is currently not visible
            w->hide();
            return;
        }

        QModelIndex rightMostIndex = viewIndex;
        QModelIndex tempIndex = viewIndex;
        while ((tempIndex = rightMostIndex.sibling(rightMostIndex.row(), rightMostIndex.column() + 1)).isValid())
            rightMostIndex = tempIndex;

        QRect rightMostRect = treeView()->visualRect(rightMostIndex);

        //Find out the basic height of the row
        rect.setLeft(rect.left() + 20);
        rect.setRight(rightMostRect.right() - 5);

        //These offsets must match exactly those used in KateCompletionDeleage::sizeHint()
        rect.setTop(rect.top() + basicRowHeight(viewIndex) + 5);
        rect.setHeight(w->height());

        if (w->parent() != treeView()->viewport() || w->geometry() != rect || !w->isVisible()) {
            w->setParent(treeView()->viewport());

            w->setGeometry(rect);
            w->show();
        }
    }
}

void ExpandingWidgetModel::placeExpandingWidgets()
{