| /* |
| * Copyright 2009 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.user.client.ui; |
| |
| /** |
| * Implemented by {@link IndexedPanel}s that also allow insertions. |
| */ |
| public interface InsertPanel extends IndexedPanel { |
| |
| /** |
| * Extends this interface with convenience methods to handle {@link IsWidget}. |
| */ |
| interface ForIsWidget extends InsertPanel, IndexedPanel.ForIsWidget { |
| void add(IsWidget w); |
| |
| void insert(IsWidget w, int beforeIndex); |
| } |
| |
| /** |
| * Adds a child widget to this panel. |
| * |
| * @param w the child widget to be added |
| */ |
| void add(Widget w); |
| |
| /** |
| * Inserts a child widget before the specified index. If the widget is already |
| * a child of this panel, it will be moved to the specified index. |
| * |
| * @param w the child widget to be inserted |
| * @param beforeIndex the index before which it will be inserted |
| * @throws IndexOutOfBoundsException if <code>beforeIndex</code> is out of |
| * range |
| */ |
| void insert(Widget w, int beforeIndex); |
| } |