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  1. Qt
  2. QTBUG-63846

Regression in 5.9.2: Internal dragging in QTableView inside QDialog freezes the dialog

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Affects Version/s: 5.9.2
    • Fix Version/s: 5.9.3
    • Component/s: Widgets: Itemviews
    • Environment:
      I'm on Arch Linux, using x11.  Qt version 5.9.2 exhibits this behavior, whereas 5.9.1 works like a charm.
    • Commits:
      acdb3340321d1b8823b54f2ea492f975c6f942d8

      Description

      I've encountered a bug which is present in 5.9.2 but not 5.9.1.  Specifically, this is related to setting up a QTableView which has a setDragDropMode of InternalMove.  If I add such a widget to a QMainWindow directly, it works fine – if you click and drag inside the QTableView, borders get updated properly and all is well.

      If I add the widget inside a QDialog, however, pretty much the instant my mouse starts to move initially, the entire dialog totally freezes up, my mouse pointer remains the mid-dragging status, and the only way to return control to the dialog (that I've found, anyway) is to hit Escape (which also cancels the drag).

      I've got a full app which is exhibiting this behavior, but I'm also attaching a simple pyqt example which should be pretty well stripped down to the essentials (apologies it's not C++!)

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            Assignee:
            andysh Andy Shaw
            Reporter:
            apocalyptech CJ Kucera
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              Resolved:

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