QwtPlotPicker on stockchart

[wooosh]

Hey,

I have yet another question regarding QWT.

I added a QwtPlotPicker to my chart like this:

QwtPlotPicker picker_ = new QwtPlotPicker(this->canvas());
picker_->setAxis(QwtPlot::xBottom, QwtPlot::yRight);
picker_->setStateMachine(new QwtPickerTrackerMachine());
picker_->setTrackerMode(QwtPlotPicker::AlwaysOn);
picker_->setRubberBandPen(QColor(Qt::green));
picker_->setRubberBand(QwtPicker::CrossRubberBand);
picker_->setTrackerPen(QColor(Qt::black));

QwtPlotPicker picker_ = new QwtPlotPicker(this->canvas());
picker_->setAxis(QwtPlot::xBottom, QwtPlot::yRight);
picker_->setStateMachine(new QwtPickerTrackerMachine());
picker_->setTrackerMode(QwtPlotPicker::AlwaysOn);
picker_->setRubberBandPen(QColor(Qt::green));
picker_->setRubberBand(QwtPicker::CrossRubberBand);
picker_->setTrackerPen(QColor(Qt::black));

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Now the problem is that the values for the x-axis are shown as milliseconds from the epoch instead of dates. When I add a QwtPlotZoomer it displays values as dates just as I would expect it since my x-axis are dates (the curve is a QwtPlotTradingCurve).
Any ideas what I am doing wrong here?

[Uwe]

Any ideas what I am doing wrong here?

Nothing - the picker doesn't correspond with the scales for how to display values. The same is for the zoomer !

But as your zoomer shows datetime values I guess you have copied the code from the stockchart example, where QwtPlotPicker::trackerTextF() has been overloaded. The same has to be done for your picker.

Uwe

[wooosh]

You are absolutely right. I used the code from the stockchart example. Got it working now. Thanks a lot!