qmllint or any alternative to avoid anchor warnings

Pradeep P N

Hi All,

Small & dirty use case considering below code.

I have a Component which is inteded to sit always on top of its parent when used

// dummy code - Top.qml
Rectangle {                 
    width: parent?.width;              
    height: 100;             
    color: 'red'            
    anchors.top: parent?.top
}

When used it in any other component its straight forward it works.
i.e.

Window {
    width: 100
    height: 100
    
    Top { }
}

But the user who is using this Top {} don't check or have some other logic & start using it in a ColumnLayout {} as below`

ColumnLayout {
    ..
    Top { ... }
    Text { ... }
    Button { ... }
}

Which throw the warning for the usage ( which is valid 100% )
QML Rectangle: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.

Removing the anchors within Top {} works and no warnings, but has to be used when using the Top in other component.

Still i just want to check is there a way from QML, that I don't show this warning in log with out changing my present code if possible
Tried using qqmllint which did not help in this case.

Thanks in advance.

dheerendra

qmllint cannot help here as this programming error.
Inside the top you reset the anchor

Top {
anchors.top : undefined.
}

This is the only way.

KH-219Design

This may or may not be of interest to you. I have previously posted about the mechanism I use for enforcing a "total ban" on QML warnings.

You can see that older post (which is still all accurate and applicable) here:

https://forum.qt.io/topic/113028/is-it-possible-to-use-any-qml-parser-tool