QSlider mouse direct jump

Question

Instead of stepping when the user clicks somewhere on the qslider I want to make the slider jump to that position. How can this be implemented ?

Answer 1

I needed this too and tried spyke solution, but it's missing two things:

• inverted appearance
• handle picking (when the mouse is over the handle, direct jump is not necessary)

So, here's the reviewed code:

void MySlider::mousePressEvent ( QMouseEvent * event )
{
  QStyleOptionSlider opt;
  initStyleOption(&opt);
  QRect sr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);

  if (event->button() == Qt::LeftButton &&
      sr.contains(event->pos()) == false)
  {
    int newVal;
    if (orientation() == Qt::Vertical)
       newVal = minimum() + ((maximum()-minimum()) * (height()-event->y())) / height();
    else
       newVal = minimum() + ((maximum()-minimum()) * event->x()) / width();

    if (invertedAppearance() == true)
        setValue( maximum() - newVal );
    else
        setValue(newVal);

    event->accept();
  }
  QSlider::mousePressEvent(event);
}