001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.ui.factory;
020
021import org.jdom2.Element;
022import org.jpos.ui.UI;
023import org.jpos.ui.UIFactory;
024
025import javax.swing.*;
026import java.awt.*;
027import java.util.Iterator;
028
029/**
030 * UIFactory that builds a Swing panel using {@link GridLayout} with {@code <cell>} children.
031 *
032 * @author Alejandro Revilla
033 *
034 * creates a panel with a grid layout
035 * i.e:
036 * <pre>
037 *  &lt;grid rows="yy" columns="xx"&gt;
038 *   &lt;cell&gt;...&lt;/cell&gt;
039 *   &lt;cell&gt;...&lt;/cell&gt;
040 *   &lt;cell&gt;...&lt;/cell&gt;
041 *   ...
042 *   ...
043 *  &lt;/grid&gt;
044 * </pre>
045 * @see org.jpos.ui.UIFactory
046 */
047public class GridLayoutFactory implements UIFactory {
048    /** Default constructor for {@link UIFactory} discovery. */
049    public GridLayoutFactory() {}
050    public JComponent create (UI ui, Element e) {
051        JComponent p;
052        try {
053            int rows = Integer.parseInt (e.getAttributeValue  ("rows", "1"));
054            int cols = Integer.parseInt (e.getAttributeValue ("columns", "1"));
055            p = new JPanel (new GridLayout (rows, cols));
056            Iterator iter = e.getChildren ("cell").iterator ();
057            while (iter.hasNext())
058                p.add (ui.create ((Element) iter.next ()));
059        } catch (Exception ex) {
060            p = new JLabel (ex.getMessage());
061        }
062        return p;
063    }
064}
065