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  1. #1
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    Default subclass QSlider to go to a value on one click

    Hi everybody

    I'm writing a video player right now and I need a slider like in media player classic. I've was frustrated when I found that Qt does not have a way to go to the certain value on click. So I've tried to do it by subclassing QSlider like this:
    Qt Code:
    1. void QProgressSlider::mouseReleaseEvent(QMouseEvent* event)
    2. {
    3. event->ignore();
    4. double k = ((double)event->x())/((double)width());
    5. int a = k*(maximum());
    6. setValue(a);
    7. }
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    This is close but some times the handle misses the cursor. I've also tried to use
    int QSliderPrivate:: pixelPosToRangeValue(int pos) function but the results are the same.

    Any suggestions ?
    C++ & AMD forever

  2. #2
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    Default Re: subclass QSlider to go to a value on one click

    One can do it easily with good old [WIKI]proxy style[/WIKI]:
    Qt Code:
    1. int MyStyle::styleHint(StyleHint hint, const QStyleOption* option, const QWidget* widget, QStyleHintReturn* returnData) const
    2. {
    3. if (hint == SH_Slider_AbsoluteSetButtons)
    4. return Qt::LeftButton; // or "Qt::LeftButton | Qt::RightButton"
    5. return ProxyStyle::styleHint(hint, option, widget, returnData);
    6. }
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    Last edited by jpn; 26th May 2008 at 17:00.
    J-P Nurmi

  3. #3
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    Default Re: subclass QSlider to go to a value on one click

    Any details ?
    C++ & AMD forever

  4. #4
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    Default Re: subclass QSlider to go to a value on one click

    READ through the link I gave.
    J-P Nurmi

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