Addendum to r6010, adding missing InsertPanel.java
git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@6071 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/src/com/google/gwt/user/client/ui/InsertPanel.java b/user/src/com/google/gwt/user/client/ui/InsertPanel.java
new file mode 100644
index 0000000..c4c7dad
--- /dev/null
+++ b/user/src/com/google/gwt/user/client/ui/InsertPanel.java
@@ -0,0 +1,41 @@
+/*
+ * 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;
+
+/**
+ * A panel that allows indexed insertions.
+ */
+public interface InsertPanel extends IndexedPanel {
+
+ /**
+ * 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);
+}
+
