How to use

setStyle

method

in

org.geomajas.configuration.client.ClientRasterLayerInfo

/**
 * Apply a new opacity on the entire raster layer.
 * 
 * @param opacity
 *            The new opacity value. Must be a value between 0 and 1, where 0 means invisible and 1 is totally
 *            visible.
 */
public void setOpacity(double opacity) {
  getLayerInfo().setStyle(Double.toString(opacity));
  eventBus.fireEvent(new LayerStyleChangedEvent(this));
}

private void saved() {
  if (form.validate()) {
    if (layer.getClientLayerInfo() == null) {
      layer.setClientLayerInfo(layer.getReferencedLayerInfo()); // clone??
    }
    ClientLayerInfo cli = layer.getClientLayerInfo();
    cli.setLayerInfo(null);
    cli.setVisible(defaultVisible.getValueAsBoolean());
    cli.setLabel(label.getValueAsString());
    cli.setMinimumScale(SensibleScaleConverter.stringToScale(minScale.getValueAsString()));
    cli.setMaximumScale(SensibleScaleConverter.stringToScale(maxScale.getValueAsString()));
    if (cli instanceof ClientRasterLayerInfo && opacitySlider != null) {
      float opacityValue = opacitySlider.getValue() / 100;
      ((ClientRasterLayerInfo) cli).setStyle(String.valueOf(opacityValue));
    } else if (cli instanceof ClientVectorLayerInfo && styleHelper != null) {
      styleHelper.apply((ClientVectorLayerInfo) cli);
    }
    for (WidgetEditorHandler h : widgetEditors) {
      h.save(layer);
    }
    hide();
    destroy();
    if (callback != null) {
      callback.execute(true);
    }
  }
}