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Thread: QGraphicsItem, QLineF Precise Selection

  1. #1
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    Default QGraphicsItem, QLineF Precise Selection

    Related to: PyQt4.6

    In a custom QGraphicsItem class, I am drawing a line using QLineF. This item is selectable. The problem is that QGraphicsItem's selection is based on bounding box and in case when line is drawn almost diagonally, Clicking even far away from line also make it selectable. Is there any way to make the line selectable when precisely clicking on it. (even margin of 1 or 2 pixel would be fine in case)
    Prashant


    qt-sdk-win-opensource-2009.03.1.exe
    Python 2.6.3
    PyQt-Py2.6-gpl-4.6-1
    Win XP, 32 Bit

  2. #2
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    Default Re: QGraphicsItem, QLineF Precise Selection

    Override QGraphicsItem::shape of your graphics item

    Also have a look at the diagram scene example in Qt Demos. (Qt Demos --> Graphics View --> Diagram Scene)

  3. The following user says thank you to aamer4yu for this useful post:

    prashant (30th October 2009)

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