Hide legend for a series with grouping

mogwai

<p>As described elsewhere in this forum, the code:</p>
<p> </p>
<div>function beforeDrawLegendItem( lerh, bounds, icsc )</div>
<div>{</div>
<div>if(lerh.getLabel().getCaption().getValue() == "series_name"){</div>
<div>lerh.getLabel().setVisible(false);</div>
<div>bounds.set(0,0,0,0);</div>
<div>} else {</div>
<div>lerh.getLabel().setVisible(true);</div>
<div>}</div>
<div> </div>
<div>}</div>
<div> </div>
<div>will hide the legend for the series with "series_name", IF that series does not have optional Y-series grouping selected.  If optional Y-series grouping is selected, the group category legend entries can be hidden with this code but not the series legend as a whole.  In the attached report, the group category "Ships" is hidden in both series legends, but I am looking for a solution that hides Series 2 as a whole, whilst nothing of Series 1 should be hidden.</div>
<div> </div>
<div>Has anyone done this?</div>
<div>

Clement Wong

<p>Attached is a solution of how to hide the first series, and keep the second series.  It is based on accessing the legend in beforeRendering from Jason W's post @ <a data-ipb='nomediaparse' href='https://www.eclipse.org/forums/index.php?t=msg&th=204397&goto=653725&#msg_653725'>https://www.eclipse.org/forums/index.php?t=msg&th=204397&goto=653725&#msg_653725</a></p&gt;
<pre class="_prettyXprint _lang-">
function beforeRendering( gcs, icsc )
{
//
// Access to legend in beforeRendering based on Jason W's post @ https://www.eclipse.org/forums/index.php?t=msg&th=204397&goto=653725&#msg_653725
//
importPackage(Packages.org.eclipse.birt.chart.computation);

var llh = gcs.getRunTimeContext().getLegendLayoutHints();
//Current legend
var liha = llh.getLegendItemHints();
//New legend construct
var nliha = java.lang.reflect.Array.newInstance(LegendItemHints, 3);

// Series 1
// Planes
// Ships
// Trains
// null
// Series 2
// Planes
// Ships
// Trains

if ( liha.length > 1 ) {

for( idx=0; idx < liha.length; idx++ ) {

var tli = liha[idx];

if (idx >= 6) {
// Build new legend entries

var lih = LegendItemHints.newEntry( tli.getItemText(), tli.getValueText(), tli.getSeriesDefinition(), tli.getSeries(), tli.getIndex() );
lih.top(tli.getTop());
lih.left(tli.getLeft())

nliha[idx-6] = lih;
}
}
}

var nllh = new LegendLayoutHints( llh.getLegendSize(), llh.getTitleSize(), llh.getLaTitle(), llh.isMinSliceApplied(), llh.getMinSliceText(), nliha );

gcs.getRunTimeContext().setLegendLayoutHints(nllh);

}
</pre>