/**

  * Copyright 2010 The Kuali Foundation Licensed under the

  * Educational Community 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.osedu.org/licenses/ECL-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 org.kuali.student.common.ui.client.widgets.buttongroups;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.kuali.student.common.ui.client.mvc.Callback;

 import org.kuali.student.common.ui.client.widgets.KSButton;

 import org.kuali.student.common.ui.client.widgets.buttongroups.ButtonEnumerations.ButtonEnum;

 import org.kuali.student.common.ui.client.widgets.buttonlayout.ButtonLayout;

 import com.google.gwt.user.client.ui.Composite;

 import com.google.gwt.user.client.ui.Widget;

 public abstract class ButtonGroup<T extends ButtonEnum> extends Composite{

     private List<Callback<T>> callbacks = new ArrayList<Callback<T>>();

     protected Map<T, KSButton> buttonMap = new HashMap<T, KSButton>();

     protected ButtonLayout layout;

     public void addCallback(Callback<T> callback) {

         callbacks.add(callback);

     }

     public List<Callback<T>> getCallbacks() {

         return callbacks;

     }

     protected void sendCallbacks(T type){

         for(Callback<T> c: getCallbacks()){

             c.exec(type);

         }

     }

     public void setButtonText(T key, String text){

         buttonMap.get(key).setText(text);

     }

     public KSButton getButton(T key){

         return buttonMap.get(key);

     }

     /**

      * This method is optional, the button panel can be contained inside of a parent panel which

      * will limit it's maximum size.

      * 

      * This method provides an alternative, the button panel will "wrap" the content and become the

      * proper size based on maximum size of the content. 

      * 

      * @param content - the content the button panel will align itself next to

      */

     public void setContent(Widget content){

         layout.setContent(content);

     }

 }