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 ImportMatrixFromFileAction extends ObjectAction { 040 private static final long serialVersionUID = 8110915004887885053L; 041 042 public ImportMatrixFromFileAction(JComponent c, GUIObject m) { 043 super(c, m); 044 putValue(Action.NAME, "from File..."); 045 putValue(Action.SHORT_DESCRIPTION, 046 "import a matrix from a location on disk"); 047 putValue(Action.MNEMONIC_KEY, KeyEvent.VK_F); 048 } 049 050 051 public Object call() { 052 try { 053 File file = null; 054 FileFormat fileFormat = 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("Import"); 064 065 int returnVal = chooser.showOpenDialog(null); 066 if (returnVal == JFileChooser.APPROVE_OPTION) { 067 file = chooser.getSelectedFile(); 068 FileFilter filter = chooser.getFileFilter(); 069 for (FileFormat f : FileFormat.values()) { 070 if (filter.equals(f.getFileFilter())) { 071 fileFormat = f; 072 } 073 } 074 075 } 076 077 if (file == null) 078 return null; 079 080 Matrix m = MatrixFactory.importFromFile(fileFormat, file); 081 m.showGUI(); 082 return m; 083 } catch (Exception e) { 084 e.printStackTrace(); 085 return null; 086 } 087 } 088 }