/**
* Instantiates a new collect field.
*
* @param caption the caption
* @param groups the available groups
*/
public CollectField(String caption, List<String> groups) {
setCaption(caption);
selectField.setRows(10);
selectField.setLeftColumnCaption("Available");
selectField.setRightColumnCaption("Selected");
for (String group : groups) {
selectField.addItem(group);
}
}
void css(VerticalLayout layout) {
// BEGIN-EXAMPLE: component.select.twincolselect.css
// BOOK: components.selecting#twincolselect
final TwinColSelect select = new TwinColSelect("Select Targets to Destroy");
select.addStyleName("twincolselectexample");
// Set the column captions (optional)
select.setLeftColumnCaption("These are left");
select.setRightColumnCaption("These are done for");
// Put some data in the select
String planets[] = {
"Mercury", "Venus", "Earth", "Mars", "Jupiter", "Saturn", "Uranus", "Neptune"
};
for (int pl = 0; pl < planets.length; pl++) select.addItem(planets[pl]);
// Set the number of visible items
select.setHeight("200px");
select.setRows(6);
// Set width by the number of character columns
select.setColumns(10);
// Preselect a few items
HashSet<String> preselected = new HashSet<String>();
Collections.addAll(preselected, "Venus", "Earth", "Mars");
select.setValue(preselected);
select.addListener(
new Property.ValueChangeListener() {
private static final long serialVersionUID = 6081009810084203857L;
public void valueChange(ValueChangeEvent event) {
System.out.println(event.getProperty().getType().getName());
if (event.getProperty().getValue() != null)
System.out.println(event.getProperty().getValue().getClass().getName());
}
});
select.setImmediate(true);
layout.addComponent(select);
// END-EXAMPLE: component.select.twincolselect.css
}