Automatically scroll to current Index in QTreeView

[sargeslash]

I want to scroll automatically to currentIndex in verticalscrollbar of QTreeView which is populated by QFileSystemModel.
I am trying it with QPropertyAnimation on the verticalScrollBar->setValue().
I have a default index in the QTreeView which I set in a function, and so I want to scroll to it.

void MainWindow::updateTree()
{
QString dir=QFileInfo(ui->lineEdit->text()).path();
QModelIndex idx = model->index(dir);
if (idx.isValid())
{
ui->treeView->setCurrentIndex(model->index(dir));
ui->treeView->expand(idx);
}
}

I am not good with QPropertyAnimation so please help me with this.

[thomas@itest]

???? "QTreeView::scrollTo" is not enough ???

[sargeslash]

I already tried it but nothings happening

[ChrisW67]

So why didn't you ask, "Why isn't QTreeView::scrollTo() scrolling to display the specified index when use like this? <insert your code>"?

Two obvious options:

• It is making sure the specified index is visible but you are expecting something else like automagically keeping the current index in view.
• The index you have given it is not valid.

[sargeslash]

I am just trying to scroll down until the currentIndex is visible, I read it somewhere I need to do it with QPropertyAnimation, if u people have any better solution then plesae tell, I would be glad. Just to say I want to scroll automatically to this folder Screenshot from 2013-03-01 12:54:36.png