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1   /*******************************************************************************
2    * Copyright 2013 Universidad Politécnica de Madrid
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   ******************************************************************************/
16  
17  package org.universAAL.ui.handler.gui.swing.model.FormControl.support;
18  
19  import java.util.List;
20  
21  import org.universAAL.middleware.ui.rdf.Form;
22  import org.universAAL.middleware.ui.rdf.FormControl;
23  import org.universAAL.middleware.ui.rdf.Group;
24  import org.universAAL.middleware.ui.rdf.Repeat;
25  
26  /**
27   * This support class is used to generate a list of virtual forms (one per row) so each element of 
28   * the repeat ({@link FormControl}) can be Modeled as the rest of {@link FormControl}.
29   * @author amedrano
30   * 
31   */
32  public class RepeatSubdivider {
33  
34  	/**
35  	 * {@link Repeat} object to be used.
36  	 */
37  	private Repeat repeat;
38  
39  	/**
40  	 * container for children of {@link #repeat}
41  	 */
42  	private FormControl[] elems;
43  
44  	/**
45  	 * Constructor
46  	 */
47  	public RepeatSubdivider(Repeat repeat) {
48  		this.repeat = repeat;
49  		elems = repeat.getChildren();
50  		if (elems == null || elems.length != 1) {
51  			throw new IllegalArgumentException("Malformed argument!");
52  		}
53  		if (elems[0] instanceof Group) {
54  			elems = ((Group) elems[0]).getChildren();
55  			if (elems == null || elems.length == 0)
56  				throw new IllegalArgumentException("Malformed argument!");
57  		} else if (elems[0] == null)
58  			throw new IllegalArgumentException("Malformed argument!");
59  
60  	}
61  
62  	public FormControl[] getElems(){
63  		return elems;
64  	}
65  	
66  	/**
67  	 * Generates a {@link List} of (virtual) {@link Form}s which each contains in its IOControls group
68  	 * the corresponding row of {@link FormControl}.
69  	 * This works because the dataRoot of each form is the corresponding for the row, so each {@link FormControl}
70  	 * can be modeled as usual.
71  	 * @return
72  	 */
73  	public List generateSubForms() {
74  		return repeat.virtualFormExpansion();
75  	}
76  }