private void update() {
if (currentCanvas != null) {
currentCanvas.hide();
}
currentComponent = components.get(currentType);
currentCanvas = currentComponent.get();
currentCanvas.show();
}
private void reset(final UploadComponentOptions options) {
resetComponents(options);
clear();
final Set<String> types = components.keySet();
currentType = types.iterator().next();
parentCanvas = new Canvas();
layout = new VLayout();
final SelectItem typeItem = new SelectItem("uploadType", "Upload Type");
typeItem.setValueMap(types.toArray(new String[types.size()]));
typeItem.setValue(currentType);
typeItem.setWidth(250);
typeItem.addChangedHandler(
new ChangedHandler() {
public void onChanged(final ChangedEvent event) {
currentType = typeItem.getValue().toString();
update();
}
});
final Form form =
new Form(
DomConstants.buildConstant(DomConstants.UPLOAD_COMPONENT_TYPE, uploadComponentNumber),
typeItem);
form.setPadding(0);
form.setMargin(0);
form.setCellSpacing(0);
form.setCellPadding(0);
form.setAlign(Alignment.RIGHT);
form.setWidth(350);
form.setHeight(20);
final HLayout header = new HLayout();
header.setAlign(Alignment.RIGHT);
header.addMember(form);
header.setHeight(20);
layout.setAlign(Alignment.RIGHT);
layout.addMember(header);
layout.addMember(parentCanvas);
layout.setGroupTitle("File Chooser");
layout.setIsGroup(true);
layout.setHeight("185px");
layout.setPadding(2);
layout.setLayoutAlign(Alignment.CENTER);
layout.setAlign(Alignment.CENTER);
for (final UploadComponent uploadComponent : components.values()) {
final Canvas childCanvas = uploadComponent.get();
childCanvas.hide();
parentCanvas.addChild(childCanvas);
}
update();
wrapperLayout.addMember(layout);
}