/***************************************************************************
GanttCSVFilter.java
-----------------
begin                : 7 juil. 2004
copyright            : (C) 2004 by Thomas Alexandre
email                : alexthomas@ganttproject.org
***************************************************************************/

/***************************************************************************
*                                                                         *
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU General Public License as published by  *
*   the Free Software Foundation; either version 2 of the License, or     *
*   (at your option) any later version.                                   *
*                                                                         *
***************************************************************************/
package net.sourceforge.ganttproject.filter;

import java.io.File;

import javax.swing.filechooser.FileFilter;

import net.sourceforge.ganttproject.language.GanttLanguage;

/**
 * @author athomas
 *
 * Filter for csv txt file import
 */
public class GanttCSVFilter extends FileFilter {

	/* (non-Javadoc)
	 * @see javax.swing.filechooser.FileFilter#accept(java.io.File)
	 */
	public boolean accept(File f) {
		if (f.isDirectory()) {
			return true;
		}

		String extension = getExtension(f);
		
		if (extension != null && (/*extension.equals("txt") ||*/ extension.equals("csv")) )
			return true;
						
		return false;
	}

	/* (non-Javadoc)
	 * @see javax.swing.filechooser.FileFilter#getDescription()
	 */
	public String getDescription() {
		return GanttLanguage.getInstance().getText("filtercsv");
	}

	/** Extention return */	
	public static String getExtension(File f) {
		String ext = null;
		String s = f.getName();
		int i = s.lastIndexOf('.');

		if (i > 0 &&  i < s.length() - 1) {
			ext = s.substring(i+1).toLowerCase();
		}
		return ext;
	}
}

