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.JOptionPane;
033    import javax.swing.KeyStroke;
034    import javax.swing.filechooser.FileFilter;
035    
036    import org.ujmp.core.enums.FileFormat;
037    import org.ujmp.core.interfaces.GUIObject;
038    import org.ujmp.core.util.io.UJMPFileFilter;
039    import org.ujmp.gui.MatrixGUIObject;
040    
041    public class SaveMatrixAction extends ObjectAction {
042            private static final long serialVersionUID = -212812956173346428L;
043    
044            public SaveMatrixAction(JComponent c, GUIObject o) {
045                    super(c, o);
046                    putValue(Action.NAME, "Save...");
047                    putValue(Action.SHORT_DESCRIPTION, "Save this Matrix");
048                    putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_S,
049                                    KeyEvent.CTRL_DOWN_MASK));
050            }
051    
052            public Object call() {
053                    try {
054                            File file = null;
055                            JFileChooser chooser = new JFileChooser();
056    
057                            for (FileFormat f : FileFormat.values()) {
058                                    chooser.addChoosableFileFilter(f.getFileFilter());
059                            }
060    
061                            chooser.setFileFilter(FileFormat.CSV.getFileFilter());
062                            chooser.setAcceptAllFileFilterUsed(false);
063                            chooser.setDialogTitle("Save");
064    
065                            int returnVal = chooser.showSaveDialog(null);
066                            if (returnVal == JFileChooser.APPROVE_OPTION) {
067                                    file = chooser.getSelectedFile();
068    
069                                    FileFilter filter = chooser.getFileFilter();
070    
071                                    String suffix = ((UJMPFileFilter) filter).getSuffix()[0];
072                                    if (!file.getAbsolutePath().toLowerCase().endsWith(suffix)) {
073                                            file = new File(file.getAbsolutePath() + "." + suffix);
074                                    }
075                            }
076    
077                            if (file == null)
078                                    return null;
079    
080                            if (file.exists()) {
081                                    int result = JOptionPane.showConfirmDialog(null,
082                                                    "File already exists. Overwrite?", "Warning",
083                                                    JOptionPane.YES_NO_OPTION);
084                                    if (result != JOptionPane.YES_OPTION)
085                                            return null;
086                            }
087    
088                            GUIObject o = getGUIObject();
089    
090                            if (o instanceof MatrixGUIObject) {
091                                    MatrixGUIObject m = (MatrixGUIObject) o;
092                                    try {
093                                            m.getMatrix().exportToFile(file);
094                                    } catch (Exception e) {
095                                    }
096                            }
097    
098                            return null;
099                    } catch (Exception e) {
100                            e.printStackTrace();
101                            return null;
102                    }
103            }
104    
105    }