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  1. Qt
  2. QTBUG-87253

Quick Layout causes crash if child item Layout.preferredWidth bound to the Layouts width

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    • 4f8041b01445fd4eec0beb133719645d00d0b2ac (qt/qtdeclarative/dev) 0b5ae19f733c7d59e6138c677fe432a0e6f25938 (qt/qtdeclarative/6.0) 8b9bac7125021b57ffc2edecc8482adafcb0b398 (qt/tqtc-qtdeclarative/tqtc/lts-5.15)

      If for example RowLayout or ColumnLayout contains an item with the attached property Layout.preferredWidth bound to the layout width (e.g. Layout.preferredWidth: (parent.width - 30) / 3), the layout will keep changing it's width rapidly and the app will crash shortly.

      Steps to reproduce the issue:

      1. Run the attached project

      The example would work fine if Layout.preferredWidth is not bound to the layout width OR that the layout has width set (e.g. width: 600).

        1. qtbug87253.zip
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          Miika Pernu
        For Gerrit Dashboard: QTBUG-87253
        # Subject Branch Project Status CR V
        329553,4 QuickLayouts: fix crash when layout width depends on parent width dev qt/qtdeclarative Status: MERGED +2 0
        330114,2 QuickLayouts: fix crash when layout width depends on parent width 6.0 qt/qtdeclarative Status: MERGED +2 0
        330116,2 QuickLayouts: fix crash when layout width depends on parent width tqtc/lts-5.15 qt/tqtc-qtdeclarative Status: MERGED +2 0

            ivan.solovev Ivan Solovev
            miikapernu Miika Pernu
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