Question

如何让QTreeView选中行的颜色拓展到整个width

Answer 1

这个问题终于解决了：

void KNMusicTreeViewBase::drawRow(QPainter *painter,
const QStyleOptionViewItem &options,
const QModelIndex &index) const
{
if(index.row()&1)
{
//Draw the alternative background.
painter->fillRect(QRect(options.rect.x(),
options.rect.y(),
width(),
options.rect.height()),
m_alternateColor);
}
QTreeView::drawRow(painter, options, index);