01: /*
02: * Copyright 2007 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package com.google.gwt.user.client.ui;
17:
18: import com.google.gwt.user.client.DOM;
19:
20: /**
21: * A panel that formats its child widgets using the default HTML layout
22: * behavior.
23: *
24: * <p>
25: * <img class='gallery' src='FlowPanel.png'/>
26: * </p>
27: */
28: public class FlowPanel extends ComplexPanel {
29:
30: /**
31: * Creates an empty flow panel.
32: */
33: public FlowPanel() {
34: setElement(DOM.createDiv());
35: }
36:
37: /**
38: * Adds a new child widget to the panel.
39: *
40: * @param w the widget to be added
41: */
42: @Override
43: public void add(Widget w) {
44: super .add(w, getElement());
45: }
46:
47: /**
48: * Inserts a widget before the specified index.
49: *
50: * @param w the widget to be inserted
51: * @param beforeIndex the index before which it will be inserted
52: * @throws IndexOutOfBoundsException if <code>beforeIndex</code> is out of
53: * range
54: */
55: public void insert(Widget w, int beforeIndex) {
56: super .insert(w, getElement(), beforeIndex, true);
57: }
58: }
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