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  1. Qt
  2. QTBUG-121445

[REG 6.6 -> 6.7] Top-level QWidget minimum/maximum size API promise is broken on Wayland

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Details

    • Bug
    • Resolution: Duplicate
    • P1: Critical
    • None
    • 6.7
    • QPA: Wayland
    • None
    • Linux/Wayland

    Description

      https://doc.qt.io/qt-5/qwidget.html#minimumSize-prop

      The widget cannot be resized to a smaller size than the minimum widget size. The widget's size is forced to the minimum size if the current size is smaller.

      https://doc.qt.io/qt-5/qwidget.html#maximumSize-prop

      The widget cannot be resized to a larger size than the maximum widget size.

      https://codereview.qt-project.org/c/qt/qtwayland/+/524982 breaks this API promise because buffer size couldn't be overridden by the compositor but the xdg-shell hints could be ignored just fine and that's something compositors like sway do in the wild.

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          is replaced by

          Suggestion - Public suggestions QTBUG-121536 Consider ways to handle fixed size widgets on systems where this is unsupported

          • Not Evaluated - Not yet evaluated/prioritized
          • Reported
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-120035 [weston] Setting fixed size for the main level widget crashes the application when maximized

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              qt.team.graphics.and.multimedia Qt Graphics Team
              ilya-fedin Ilya Fedin
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                Resolved:

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