001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.gui.actions;
025    
026    import java.awt.event.KeyEvent;
027    import java.io.File;
028    
029    import javax.swing.Action;
030    import javax.swing.JComponent;
031    import javax.swing.JFileChooser;
032    import javax.swing.filechooser.FileFilter;
033    
034    import org.ujmp.core.Matrix;
035    import org.ujmp.core.MatrixFactory;
036    import org.ujmp.core.enums.FileFormat;
037    import org.ujmp.core.interfaces.GUIObject;
038    
039    public class LinkMatrixToFileAction extends ObjectAction {
040            private static final long serialVersionUID = -5948577771230452714L;
041    
042            public LinkMatrixToFileAction(JComponent c, GUIObject m) {
043                    super(c, m);
044                    putValue(Action.NAME, "to File...");
045                    putValue(Action.SHORT_DESCRIPTION, "link a matrix to a file on disk");
046                    putValue(Action.MNEMONIC_KEY, KeyEvent.VK_F);
047            }
048    
049            
050            public Object call() {
051                    try {
052                            File file = null;
053                            FileFormat fileFormat = null;
054                            JFileChooser chooser = new JFileChooser();
055    
056                            for (FileFormat f : FileFormat.values()) {
057                                    chooser.addChoosableFileFilter(f.getFileFilter());
058                            }
059    
060                            chooser.setFileFilter(FileFormat.CSV.getFileFilter());
061                            chooser.setAcceptAllFileFilterUsed(false);
062                            chooser.setDialogTitle("Link");
063    
064                            int returnVal = chooser.showOpenDialog(null);
065                            if (returnVal == JFileChooser.APPROVE_OPTION) {
066                                    file = chooser.getSelectedFile();
067                                    FileFilter filter = chooser.getFileFilter();
068                                    for (FileFormat f : FileFormat.values()) {
069                                            if (filter.equals(f.getFileFilter())) {
070                                                    fileFormat = f;
071                                            }
072                                    }
073    
074                            }
075    
076                            if (file == null)
077                                    return null;
078    
079                            Matrix m = MatrixFactory.linkToFile(fileFormat, file);
080                            m.showGUI();
081                            return m;
082                    } catch (Exception e) {
083                            e.printStackTrace();
084                            return null;
085                    }
086            }
087    }