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  1. Qt
  2. QTBUG-122782

Infinite polish loop in ColumnLayout + GridLayout since "Adapt layouts to take advantage of new size policy information"

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Details

    • Bug
    • Resolution: Duplicate
    • P2: Important
    • None
    • 6.7
    • Quick: Layouts
    • None
    • Linux/X11
    • dd72694b6046d98a64bd99361ed9cb4613af78f8

    Description

      Since https://invent.kde.org/qt/qt/qtdeclarative/-/commit/dd72694b6046d98a64bd99361ed9cb4613af78f8 , the following QML code will cause infinite polish loop.

      import QtQuick
import QtQuick.Layouts
import QtQuick.Controls as QQC2

Window {
    id: root
    width: 16 * 29
    height: 16 * 35
    visible: true
    ColumnLayout {
        spacing: 0
        QQC2.ComboBox {
            id: modeSwitcher
            Layout.minimumWidth: 16 * 17
            currentIndex: 0
            model: ["Always off"]
        }
        GridLayout {
            columns: 2
            QQC2.Label {
                // Match combobox width
                Layout.minimumWidth: modeSwitcher.width
                text: "Current temperature: "
            }
            QQC2.Label {
                text: `100K`
                textFormat: Text.PlainText
            }
        }
    }
}

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        Issue Links

          relates to

          Suggestion - Public suggestions QTBUG-116634 Add functionality to help to identify causes of polish loops

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-126740 found the simplest way yet to create an infinite polish loop

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-126474 QQuickLayout Recursive Rearrange Locks Application

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          resulted from

          Suggestion - Public suggestions QTBUG-117597 Add sensible defaults for layout properties to Qt Quick Controls

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              santhoshkumar Santhosh Kumar Selvaraj
              fusionfuture Yuanzheng Wang
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              Dates

                Created:
                Updated:
                Resolved:

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