/**

  * 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.pagetable;

 import java.util.Set;

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

 import com.google.gwt.gen2.table.client.FixedWidthGrid;

 import com.google.gwt.gen2.table.event.client.RowSelectionEvent;

 import com.google.gwt.gen2.table.event.client.RowSelectionHandler;

 /**

  * When this event handler is added to a table that extends 

  * @see class com.google.gwt.gen2.table.client.AbstractScrollTable

  * Where all columns contain text, the text of every selected row is copied

  * to a Label

  * @author Kuali Student Team (gstruthers@berkeley.edu)

  *

  */

 public class TableSelectionToLabelHandler implements RowSelectionHandler {

     private FixedWidthGrid dataTable;

     private KSLabel selection;

     private String labelPrefix;

     public TableSelectionToLabelHandler(FixedWidthGrid dataTable, KSLabel selection) {

         this.dataTable = dataTable;

         this.selection = selection;

         this.labelPrefix = selection.getText();

     }

     /**

      * Copy the text from every column in every selected row to a Label

      * 

      * @see com.google.gwt.gen2.table.event.client.RowSelectionHandler#onRowSelection(com.google.gwt.gen2.table.event.client.RowSelectionEvent)

      */

     @Override

     public void onRowSelection(RowSelectionEvent event) {

         Set<Integer>selectedRows = dataTable.getSelectedRows();

         //Set<Row>selectedRows = event.getSelectedRows();

         int colCount = dataTable.getColumnCount();

         StringBuilder sb = new StringBuilder(labelPrefix);

         sb.append('\n');

         for(Integer row:selectedRows){            

             selection.setText(labelPrefix);

             for(int column = 0; column < colCount; column++) {

                sb.append(dataTable.getText(row, column)).append(' '); 

             }

             sb.append('\n');

         }

         selection.setText(sb.toString());

     }

 }