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Thread: Cann't move movable items on custom graphics view

  1. #1
    Join Date
    Feb 2007
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    Default Cann't move movable items on custom graphics view

    Hi,
    I'm drawing QGraphicsEllipseItem on QGraphicsScene viewed through MyGraphicsView subclassed from QGraphicsView (mouse events are reimplemented to handle zoom in/out by right-click-drag-release).
    The item is supposed to be movable (setFlag(QGraphicsItem::ItemIsMovable,true)) but I cannot move it.

    I'm attaching simple code to illustrate the problem.

    What am I missing?
    Wojtek
    Attached Files Attached Files

  2. #2
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    Default Re: Cann't move movable items on custom graphics view

    You must call the base class implementation in your re-implemented mouse event handlers to let the view know about received events.

    Qt Code:
    1. void MyGraphicsView::mousePressEvent( QMouseEvent *e )
    2. {
    3. ...
    4. QGraphicsView::mousePressEvent(e); // <---
    5. ...
    6. }
    To copy to clipboard, switch view to plain text mode 
    J-P Nurmi

  3. The following user says thank you to jpn for this useful post:

    wojtekw (3rd March 2008)

  4. #3
    Join Date
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    Default Re: Cann't move movable items on custom graphics view

    Big thanks jpn!
    wojtek

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