/*--------------------------------------------------------------------------------------- ITESM - Campus MonterreyMaestria en Sistemas Inteligentes Proyecto de Tesis : Seguimiento Visual de Multiples Objetos con Camara Movil en Ambientes DinamicosCreado por        : Hugo Ortega Hernandez - hugorteg@yahoo.comFecha             : 15/02/2004 -----------------------------------------------------------------------------------------*/package itesm.gvision.tools;import java.io.File;import javax.swing.ImageIcon;//----------------------------------------------------------------------------------/** * Utils.java is a 1.4 example used by FileChooserDemo2.java. */public class Utils {	public final static String jpeg = "jpeg";	public final static String jpg  = "jpg";	public final static String gif  = "gif";	public final static String tiff = "tiff";	public final static String tif  = "tif";	public final static String png  = "png";		//----------------------------------------------------------------------------------	/**	 * Get the extension of a file.	 */	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;	}		//----------------------------------------------------------------------------------	/**	 * Returns an ImageIcon, or null if the path was invalid.	 */	protected static ImageIcon createImageIcon(String path) 	{		java.net.URL imgURL = Utils.class.getResource(path);		if (imgURL != null){			return new ImageIcon(imgURL);		}		else{			System.err.println("Couldn't find file: " + path);			return null;		}	}		//----------------------------------------------------------------------------------	/**	 * Obtiene el nombre del archivo de un directorio/archivo completo.	 */	public static String getFileFromPath(String p) 	{		int last = p.lastIndexOf(File.separatorChar);		if (last != -1){			return p.substring(last+1);		}		else{			return p;		}	}		//----------------------------------------------------------------------------------	/**	 *	 */	public static String getDirFromPath(String p) 	{		int last = p.lastIndexOf(File.separatorChar);		if (last != -1){			return p.substring(0, last);		}		else{			return p;		}	}}