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  1. Qt
  2. QTBUG-71264

MapItemView leaves artifacts when using QSortFilterProxy

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Details

    • Linux/X11
    • d94b6781250ace51e9a857a80ff575be566fcf94 (qt/qtlocation/5.12)

    Description

      When using a QSortFilterProxy that filters according to items being present on QML Map item visibleRegion.boundingRectangle() and zoom below a certain level, moving the map creates artifacts on Map.

      When moving the map, you can see items fade out and in.

      It's best clearly seen when zooming out to when the filter proxy has 0 items, but you still see some on the Map. (See attached images)

      This issue did not occur on Qt 5.10.1, but started in Qt 5.11 and is still present in the current 5.12.0 beta. The Map is also much more responsive in 5.10.1 than the other versions, but I don't know if it's related to this issue.

       

      I've attached the example program I used to test this.

      Attachments

        1. 71264_BrokenMIV.tar.gz
          6 kB
        2. MapTest.zip
          7 kB
        3. PanningExample-5.10.1.mp4
          9.05 MB
        4. PanningExample-5.11.0
          9.45 MB
        5. PanningExample-5.11.2.mp4
          8.64 MB
        6. ZoomedOutMap5.10.png
          ZoomedOutMap5.10.png
          2.74 MB
        7. ZoomedOutMap5.11.png
          ZoomedOutMap5.11.png
          2.64 MB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-71549 DelegateModel leaks m_cache entries when removing incubating elements

          • 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.
          • Reported

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-74616 DelegateModel leaks m_cache entries when using transitions/incubators

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

            People

              paangele Paolo Angelelli
              marianasimint Mariana Marques
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              Dates

                Created:
                Updated:
                Resolved:

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