Setting CSS Padding Overrides BackgroundRole

[Qt_User72653]

I'm not sure if it's actually being overridden or if it's just defaulting to white, but, I have a model that returns a specific background role for certain items, but when setting the left padding of the table items using:

QTableView::item {
    padding-left: 20px;
}

The color I set using the BackgroundRole becomes white.

Do I have to implement a custom delegate just to add padding?

[mrjj]

@Qt_User72653
But is it not because you add padding and that is not part of
the area painted with background (content) ?
Just wondering. Not sure what constitutes "background" for an item.

[Qt_User72653]

I made an error in the CSS I used; I need to set a border for the padding to work:

QTableView:item {
    border: none;
    padding-left: 20px;
}

I also tried just setting the left border, thinking that I might be able to use that to simulate padding, but it completely removes the background color, too, using:

QTableView::item {
  border-left: 10px solid transparent;
}

@mrjj said in Setting CSS Padding Overrides BackgroundRole:

@Qt_User72653
But is it not because you add padding and that is not part of
the area painted with background (content) ?
Just wondering. Not sure what constitutes "background" for an item.)

I could understand if the background was only blank where the padding would be, but when setting the padding through CSS it completely removes the background color.

[mrjj]

If wondering if you are seeing the viewport().
When you say completely remove background , it means all for the
the area or just the pad part ?

Anyway, i just realized that setting Stylesheet on widgets, disables the normal drawing.
Im wondering if that also applies to BackgroundRole handling for *views.

[Qt_User72653]

Yeah, it completely removes the item background.

Is there a simpler way to do this, or do I have to implement a custom delegate?

[qwasder85]

We stumbled over this recently, seems to be a bug. No matter what kind of property you set for an item in the CSS, the background role becomes useless.

[Christian Ehrlicher]

See https://bugreports.qt.io/browse/QTBUG-75191 and my comment there.