Details
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Bug
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Resolution: Unresolved
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P2: Important
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None
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6.7
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None
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Fedora 39
Description
The following code behaves differently in Qt 6.7 compared to 6.6:
import QtQuick import QtQuick.Controls Page { id: root header: Rectangle { color: "red" height: 20 anchors.top: globalToolBar.visible ? globalToolBar.bottom : root.top } contentItem: ScrollView { id: scrollView anchors { top: root.header.bottom bottom: parent.bottom left: parent.left right: parent.right } contentItem: ListView { id: locationView model: 40 delegate: Text { text: "Hello " + index width: ListView.view.width } } } data: [ Rectangle { id: globalToolBar color: "blue" implicitHeight: 40 z: 9999 anchors { left: parent.left right: parent.right top: parent.top } } ] }
This is a much reduced version of what KDE's Kirigami framework does internally.
In Qt 6.6 it first shows a blue header, then a red header, then the list items starting at index 0, as expected
In 6.7 the blue header is shown, but the red header is missing, and the first visible list item is index 1. Dragging the List down via touch reveals the missing first item.
With 6.7 the warning "QML QQuickRectangle: Possible anchor loop detected on vertical anchor." is printed.
QtBase commit 61566fa52d260e9246a2c487ba9048222ceed24f
QtDeclarative commit ac0bbf86c979ab3faef102890ceaceb0378f8ed4
Attachments
Gerrit Reviews
For Gerrit Dashboard: QTBUG-120197 | ||||||
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# | Subject | Branch | Project | Status | CR | V |
528862,2 | Don't change header position if anchored | dev | qt/qtdeclarative | Status: NEW | 0 | 0 |