Padding/Margin is not applied to last two elements in QTreeView

[JoseTomasTocino]

Hello.

I have a QTreeView with the following styles applied to the items:

QTreeView::item {
    padding: 5px;
    color: red;
}

If you check the following screenshot you'll see the last two items do not have the proper padding. The same happens if I switch from padding to margin. I set the color to red to make sure that rule was getting applied to all items.

I'm not sure what else to test, any clue?

Edit: Ok I've been researching into the bug a little bit more and it's getting stranger. If instead of loading the stylesheet from a file, I do this:

QApplication a(argc, argv);
a.setStyleSheet("QTreeView::item {"
                  "padding: 15px;"
                  "color: red;"
                  "}");

The behavior is the same, last two elements have no padding. However if I apply THE SAME stylesheet in the window's constructor, like this:

ControllerWindow::ControllerWindow(QWidget *parent) :
    QMainWindow(parent), ui(new ::Ui::ControllerWindow)
{
    ui->setupUi(this);

    setStyleSheet("QTreeView::item {"
                  "padding: 15px;"
                  "color: red;"
                  "}");

It works!... ???? I'm baffled, this makes no sense. Is this a bug?

[Taz742]

@JoseTomasTocino
Try setStyleSheet only your QTreeWiev.
like this:

ui->treeView->setStyleSheet("QTreeView::item {"
                  "padding: 15px;"
                  "color: red;"
                  "}");

[JoseTomasTocino]

As I stated in the initial post, if I apply the stylesheet to either the containing window or the QTreeView itself it works, but it doesn't if I apply it to the QApplication, and it makes no sense.

[raven-worx]

@JoseTomasTocino
do you apply a custom item delegate to your view?
is your model static? Or do the items get added dynamically?

[JoseTomasTocino]

@raven-worx I don't use any custom item delegate.

My model doesn't update, its items are fixed.

[Rafeek]

A late reply, but it looks like those elements are different in that they don't have children. Have you checked that you don't have a style with

QTreeView::item:!has-children {
    padding: ...
}

defined anywhere which could be overriding the style when applied at the branch level?