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Thread: Any way to disable the whole plot (gray-out)?

  1. #1
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    Default Any way to disable the whole plot (gray-out)?

    As the title suggests, I have a long operation where I read file data from a thread to plot. During this, I disable the UI so the user can't click. However, I'm unable to disable my Qwt plot.

    I've tried:

    QwtPlot->setEnabled(false);
    QwtPlot->canvas()->setEnabled(false);

    Neither disable (aka gray-out) the plot area.

    Is there a way to disable the plot area?

    Thanks )

  2. #2
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    Default Re: Any way to disable the whole plot (gray-out)?

    "plot->setEnabled( false );" should be fine, but you need to assign a palette to the plot canvas, where the brush is different for QColorGroup::Disabled.

    Qt Code:
    1. pal.setBrush( QPalette::Window, Qt::blue );
    2. pal.setBrush( QPalette::Disabled, QPalette::Window, Qt::gray );
    3. plot->canvas()->setPalette( pal );
    To copy to clipboard, switch view to plain text mode 
    Uwe

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

    alketi (12th April 2020)

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