content: package com.japisoft.editix.ui;
  
  import java.awt.event.ActionEvent;
  
  import javax.swing.AbstractAction;
  import javax.swing.Action;
  import javax.swing.ButtonGroup;
  import javax.swing.JMenu;
  import javax.swing.JRadioButtonMenuItem;
  
  import com.japisoft.framework.application.descriptor.helpers.MenuBuilderDelegate;
  import com.japisoft.framework.preferences.Preferences;
  import com.japisoft.framework.xml.Encoding;
  
  /**
  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 TabSizeBuilder implements MenuBuilderDelegate {
  
  	public void build(JMenu menu) {
  		
  		menu.setEnabled( true );
  		String[] encoding = Encoding.XML_ENCODINGS;
  		ButtonGroup bg = new ButtonGroup();
  		
  		int tabSize = Preferences.getPreference( "file", "tab-size", 4 );
  
  		for ( int i = 1; i < 8; i++ ) {
  			ChangeTabSizeAction action = new ChangeTabSizeAction( i );
  			JRadioButtonMenuItem item = new JRadioButtonMenuItem( action );
  			if ( i == tabSize )
  				item.setSelected( true );
  			bg.add( item );
  			menu.add( item );
  		}
  
  	}
  
  	class ChangeTabSizeAction extends AbstractAction {
  		int size;
  		ChangeTabSizeAction( int size ) {
  			this.size = size;
  			putValue( Action.NAME, "" + size + " whitespace" + ( ( size > 1 ) ? "s":"" ) );
  		}
  		public void actionPerformed(ActionEvent e) {
  			Preferences.setPreference( "file", "tab-size", size );
  			EditixFactory.buildAndShowInformationDialog( "Please restart EditiX for applying" );
  		}
  	}
  
  }
  