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  1. Qt
  2. QTBUG-15832

QLayoutItem, QLayout sizeHint is incorrect if parent widget already visible/show

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Details

    • Bug
    • Resolution: Out of scope
    • Not Evaluated
    • None
    • 4.6.3
    • Widgets: Layout, Widgets: Widgets and Dialogs
    • None
    • Fedora 13
      Linux 2.6.34.7-61.fc13.x86_64 #1 SMP Tue Oct 19 04:06:30 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux

    Description

      The sizeHint of the created QLayoutItem in a QLayoutBox is incorrect if the parent widget of the layout is already visible (show has already been called). This in turn causes the sizeHint of the QLayoutBox itself to be invalid. At some point they correct themselves, but if you need the size immediately (as I do) it doesn't work.

      No workaround is known.

      The attached code demonstrates the issue (compare with/without the "show" line).

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-43617 sizeHint() of QDialogButtonBox changes with first button added but not of enclosing layout

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

            People

              vfm Thierry Bastian (closed Nokia identity) (Inactive)
              mortoray edA-qa mort-ora-y
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              Dates

                Created:
                Updated:
                Resolved:

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