content: package com.japisoft.framework.ui;
  
  import java.awt.Component;
  import java.awt.Container;
  import java.awt.Dimension;
  import java.awt.Window;
  import java.net.URL;
  import java.util.HashMap;
  import java.util.Iterator;
  
  import javax.swing.Icon;
  import javax.swing.ImageIcon;
  import javax.swing.JLabel;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  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 3 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class Toolkit {
  
  	public static void center( Window frame ) {
  		Dimension screen = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
  		frame.setLocation(
  				( screen.width - frame.getWidth() ) / 2,
  				( screen.height - frame.getHeight() ) / 2 );
  	}
  
  	public static void mapper( HashMap state, Container container ) {
  		Iterator keys = state.keySet().iterator();
  		while (keys.hasNext()) {
  			String name = (String) keys.next();
  			Object value = state.get(name);
  									
  			for (int i = 0; i < container.getComponentCount(); i++) {
  				Component c = container.getComponent( i );				
  				if ( name.equals( c.getName() ) ) {
  					if (c instanceof JLabel) {
  						JLabel l = (JLabel) c;
  						if (value instanceof Icon) {
  							l.setIcon( ( Icon ) value );							
  						} else
  							l.setText( value.toString() );
  					}
  				}
  				if ( c instanceof Container && ( ( Container )c ).getComponentCount() > 0 )
  					mapper( state, ( Container )c );
  			}
  		}
  	}
  
  	public static Icon getIconFromClasspath( String path ) {
  		URL url = ClassLoader.getSystemResource( path );
  		if ( url == null ) {
  			System.err.println( "Can't find " + path );
  			return null;
  		}
  		return new ImageIcon( url ); 
  	}
  
  }
  