001    /*
002      Copyright (C) 2004 Laurent Martelli <laurent@aopsys.com>
003    
004      This program is free software; you can redistribute it and/or modify
005      it under the terms of the GNU Lesser General Public License as
006      published by the Free Software Foundation; either version 2 of the
007      License, or (at your option) any later version.
008    
009      This program is distributed in the hope that it will be useful,
010      but WITHOUT ANY WARRANTY; without even the implied warranty of
011      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012      GNU Lesser General Public License for more details.
013    
014      You should have received a copy of the GNU Lesser General Public
015      License along with this program; if not, write to the Free Software
016      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
017      USA */
018    
019    package org.objectweb.jac.aspects.gui;
020    
021    import java.io.IOException;
022    import java.io.Writer;
023    import org.jutils.csv.CSVWriter;
024    import org.objectweb.jac.util.Matrix;
025    
026    /**
027     * Gui related matrix utilities.
028     * @see org.objectweb.jac.util.Matrix
029     */
030    public class MatrixUtils {
031        /**
032         * Export a matrix to a CSV (comma separated values) file.
033         * @param matrix the matrix to export
034         * @param writer where to write the CSV data
035         */
036        public static void toCSV(Matrix matrix, Writer writer) throws IOException {
037            CSVWriter out = new CSVWriter(writer);
038            int rowCount = matrix.getRowCount();
039            for (int j=0; j<rowCount; j++) {
040                int colCount = matrix.getColumnCount();
041                for (int i=0; i<colCount; i++) {
042                    out.write(GuiAC.toString(matrix.get(i,j)));
043                }
044                out.writeln();
045            }
046            writer.flush();
047        }
048    }