Awkward way to have legend-less chart

[rob walker]

Can this be done dynamically. I get a legend-less chart fine if I do this at chart create time, but setting enabled false once rendered doesn't seem to "hide" an already displayed legend.

[rob walker]

Highcharts have come back with a way to do this in JS:

$('#b0').click(function() {
    console.log(chart);
    chart.legend.box.hide();
    chart.legend.group.hide();
    chart.legend.display = false;
    chart.series[0].show(false);
});
$('#b1').click(function() {
    chart.legend.box.show();
    chart.legend.group.show();
    chart.legend.display = true;
    chart.series[0].show(false);

But I can't see any GWT bindings in the moxie layer that would let me do an equivalent from Java?

[rob walker]

With help from the Highcharts guys - I managed to get dynamic enable/disable of legends working. It needs some native code:

    public static native void nativeEnableLegend(JavaScriptObject chart, boolean show) /*-{

        if (show) {
            chart.legend.box.show();
            chart.legend.group.show();
            chart.legend.display = true;
            chart.series[0].show(false);
        } else {
            chart.legend.box.hide();
            chart.legend.group.hide();
            chart.legend.display = false;
            chart.series[0].show(false);
        }
    }-*/;

Which you then call from your Java code e.g.

    nativeEnableLegend(myChart.getNativeChart(), false);

The original JS fiddle example they sent me is here:

http://jsfiddle.net/5m9JW/162/

Note that the above needed Highstock 1.1.6 to work. Superficially it seems ok with current GWT wrapper although there could be incompatibilities I haven't noticed yet.

[Shawn Quinn]

Yeah, what you did there should work well with GWT Highcharts. If/when the Highcharts guys add a specific API method to enable/disable the legend on the fly, we can get an equivalent wrapper method added to GWT Highcharts.

Thanks for posting your solution!

[rob walker]

Welcome.

Overall Highstock 1.1.6 seems to work in place of 1.1.5 in current release. Have observed one oddity where a stacked area plot has color fill on first plot, but on later the fill seems to get lost and just show stacked lines with a white fill.