show the ValueMarker Label on Mouseover

[shethab]

I have a XYPlot. In the ChartPanel i have added a ChartMouseListener.

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// mouse listener
chartPanel.addChartMouseListener(new ChartMouseListener() {<implemented methods>});

I have added a a couple of markers to the chart.

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final Marker tempMarker = new ValueMarker(hour.getFirstMillisecond());
tempMarker.setLabel("Event Name");
tempMarker.setLabelAnchor(RectangleAnchor.TOP_LEFT);
tempMarker.setLabelTextAnchor(TextAnchor.TOP_RIGHT);
plot.addDomainMarker(tempMarker);

I want to capture when the mouse goes over the markers.

I have done a bunch of reading and the CharMouseListener only triggers when mouse goes over an Entity. How can i make the ValueMarker an entity so ChartMouseListener knows when i mouse over it.

[paradoxoff]

Short answer: you can´t, unless you changed a couple of JFreeChart classes.
See this thread with a couple of annotation classes that do the same job as a marker.

[shethab]

ok i implemented the annotation classes you pointed to.

I now have the annotations showing. How do i capture the mouseOver event now?

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private void formEventAnnotations(XYPlot plot, Hour hour, int priority) {
        try {
            final XYDomainValueAnnotation tempMarker = new XYDomainValueAnnotation();

            switch (priority) {
                case Constants.HIGH_IMPORTANCE:
                    tempMarker.setPaint(Color.RED);
                    break;
                case Constants.LOW_IMPORTANCE:
                    tempMarker.setPaint(Color.GREEN);
                    break;
                default:
                    tempMarker.setPaint(Color.BLACK);
            }
            tempMarker.setLabel("Event Name");
            tempMarker.setStroke(new BasicStroke(5.0f));
            tempMarker.setValue(hour.getFirstMillisecond());
            tempMarker.setLabelTextAnchor(TextAnchor.TOP_LEFT);
            tempMarker.setLabelAnchor(RectangleAnchor.TOP_LEFT);
            tempMarker.setRotationAnchor(TextAnchor.TOP_LEFT);
            plot.addAnnotation(tempMarker);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

I setup a `chartMouseListener` but when i mouse over the annotations nothing really happens. (i have a println printing out the event.entity )

[shethab]

Got it. My Bad.

added this line

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tempMarker.setToolTipText("Event Name");

[shethab]

Only issues is how do i get it to paint the annotation lines behind the series lines?