CODEWITHSUNDEEP
qtqml
Megidd
Megidd

Reputation: 7989

Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead

There is a QML ToolBar. I can build/run the app with Qt 5.9 without any error. But when building/running the app with Qt 5.11, I received this error:

QML EnableButton: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.

The above error occurs at the ToolbarButton declarations at in tool-bar code:

ToolBar {
    id: mainToolBar
    anchors.fill: parent
    style: ToolBarStyle {
        padding.top: 0
        padding.bottom: 0
        padding.right: 0
        padding.left: 0
        background: Rectangle {
            implicitHeight: newButton.height
            color: editorContent.itemBackgroundColor
        }
    }

    RowLayout {
        spacing: 0

        ToolbarButton {
            id: newButton
            enabledIconSource: "images/new.png"
            tooltip: qsTr("New") + editorScene.emptyString
            onEnabledButtonClicked: editorContent.fileNew()
            Layout.alignment: Qt.AlignLeft
        }
        ToolbarButton {
            enabledIconSource: "images/load.png"
            tooltip: qsTr("Load (Ctrl + O)") + editorScene.emptyString
            onEnabledButtonClicked: editorContent.fileLoad()
            Layout.alignment: Qt.AlignLeft
        }
        // ...
        // ...

I don't have any anchors in the ToolbarButton code whatsoever, instead, I'm actually using Layout.alignment in ToolbarButton code. I don't understand why such an error is thrown.

The whole project I'm trying to build with Qt 5.11 is available here:

https://github.com/qt-labs/qt3d-editor

To resolve the error, I replaced anchors with Layout.alignment, but it didn't help.

Upvotes: 2

Views: 11380

Answers (1)

Andrii
Andrii

Reputation: 1906

The anchors is in the ToolbarButton implementation. It's usually not a good idea to reference somewhere outside a component implementation, especially do any anchoring. It should be done by layout (e.g. Toolbar). Your ToolbarButton doesn't support vertical toolbars.

Upvotes: 3

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