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  1. Qt
  2. QTBUG-82308

Right click menu clears selection if flag QGraphicsItem::ItemIsMovable is set to false

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P3: Somewhat important
    • Resolution: Unresolved
    • Affects Version/s: 5.6.3, 5.12
    • Fix Version/s: None
    • Component/s: Widgets: GraphicsView
    • Labels:
      None
    • Platform/s:
      macOS

      Description

      This bug can be reproduced using the 40000 Chips QT example, but changing this line in chip.cpp:
      setFlags(ItemIsSelectable | ItemIsMovable);
      to:
      setFlag(ItemIsSelectable, true);
      setFlag(ItemIsMovable, false);

      After that, any selected items are cleared on right clicking with the mouse.

      This bug is related to
      https://bugreports.qt.io/browse/QTBUG-10138
      and:
      https://bugreports.qt.io/browse/QTBUG-2305

      However, one thing that was not informed in the previous bug reports, or documented anywhere, is that it only happens if QGraphicsItem::ItemIsMovable is set to false.
      This is a non expected behaviour when QGraphicsItem::ItemIsSelectable is set to true.

      In my case I have non movable items where I would like to add actions to the selected items on right click. And as of today it is impossible unless I do some ugly hacking.

      The workaround described here (https://www.qtcentre.org/threads/36953-QGraphicsItem-deselected-on-contextMenuEvent) does not work perfectly for me since selectedItems() and focusItem() are not updated.

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            Assignee:
            bibr Andreas Aardal Hanssen
            Reporter:
            ahi Adriel Jr.
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              Dates

              Created:
              Updated:

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