C++ (Cpp) VtkVisPipelineItem::actor示例

void VtkVisPipelineView::selectionChanged( const QItemSelection &selected,
                                           const QItemSelection &deselected )
{
	QTreeView::selectionChanged(selected, deselected);

	if (selected.empty())
		return;

	QModelIndex index = *selected.indexes().begin();
	if (index.isValid())
	{
		VtkVisPipelineItem* item = static_cast<VtkVisPipelineItem*>(index.internalPointer());
		emit actorSelected(item->actor());
		emit itemSelected(item);
		if (item->transformFilter())
			emit dataObjectSelected(vtkDataObject::SafeDownCast(
				item->transformFilter()->GetOutputDataObject(0)));
	}
	else
	{
		emit actorSelected(NULL);
		emit itemSelected(NULL);
		emit dataObjectSelected(NULL);
	}
}