/** Sets the selected layer in map has default for first layer. */
private void selectDefaultLayer() {
// gets the selected layer from map in the current context
IToolContext context = getContext();
if (context == null) return;
ILayer selectedLayerInMap = context.getSelectedLayer();
if (selectedLayerInMap == null) return;
this.currentFirstLayer = selectedLayerInMap;
this.featuresInFirstLayer =
presentSelectedFeaturesSum(
this.currentFirstLayer,
this.currentFirstLayer.getFilter(),
this.cLabelFeaturesInFirstLayer);
changeSelectedLayer(this.currentFirstLayer, this.comboFirstLayer);
validate();
}
