com.google.gwt.user.client.ui
Interface HasWidgets

All Superinterfaces:

java.lang.Iterable<Widget>

All Known Subinterfaces:

HasWidgets.ForIsWidget

All Known Implementing Classes:

AbsolutePanel, CaptionPanel, CellGridImpl, CellPanel, ComplexPanel, CustomScrollPanel, DeckLayoutPanel, DeckPanel, DecoratedPopupPanel, DecoratedStackPanel, DecoratedTabPanel, DecoratorPanel, DefaultCalendarView.CellGrid, DialogBox, DisclosurePanel, DockLayoutPanel, DockPanel, FlexTable, FlowPanel, FocusPanel, FormPanel, Grid, HeaderPanel, HorizontalPanel, HorizontalSplitPanel, HTMLPanel, HTMLTable, LayoutPanel, LazyPanel, LoggingPopup, Panel, PopupPanel, RenderablePanel, ResizeLayoutPanel, RootLayoutPanel, RootPanel, ScrollPanel, SimpleLayoutPanel, SimplePanel, SplitLayoutPanel, SplitPanel, StackLayoutPanel, StackPanel, TabLayoutPanel, TabPanel, Tree, VerticalPanel, VerticalSplitPanel

public interface HasWidgets
extends java.lang.Iterable<Widget>

A widget that implements this interface contains widgets and can enumerate them.

add

void add(Widget w)

Adds a child widget.

Parameters:

w - the widget to be added

Throws:

java.lang.UnsupportedOperationException - if this method is not supported (most often this means that a specific overload must be called)

clear

void clear()

Removes all child widgets.

iterator

java.util.Iterator<Widget> iterator()

Gets an iterator for the contained widgets. This iterator is required to implement Iterator.remove().

Specified by:

iterator in interface java.lang.Iterable<Widget>

remove

boolean remove(Widget w)

Removes a child widget.

Parameters:

w - the widget to be removed

Returns:

true if the widget was present