content: package com.japisoft.editix.editor.svg;
  
  import java.awt.BorderLayout;
  
  import java.awt.event.ActionEvent;
  import java.awt.event.KeyEvent;
  import java.io.StringReader;
  
  import javax.swing.AbstractAction;
  import javax.swing.Action;
  import javax.swing.ImageIcon;
  import javax.swing.KeyStroke;
  
  import javax.swing.JPanel;
  import javax.swing.JToolBar;
  
  import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  
  import org.apache.batik.swing.JSVGCanvas;
  import org.w3c.dom.Document;
  import org.xml.sax.InputSource;
  
  import com.japisoft.xmlpad.IXMLPanel;
  
  /**
  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 SVGPreview extends JPanel {
  
  	private boolean autoRefresh = false;
  	private IXMLPanel editor = null;
  	private JSVGCanvas svgView = null;
  	
  	SVGPreview( IXMLPanel editor ) {
  		this.editor = editor;
  		setLayout( new BorderLayout() );
  
  		editor.getMainContainer().getEditor().getActionMap().put( "refresh", new RefreshAction() );
  		editor.getMainContainer().getEditor().getInputMap().put( KeyStroke.getKeyStroke( KeyEvent.VK_F5, 0), "refresh" );
  
  		JToolBar tb = new JToolBar();
  		tb.add( editor.getMainContainer().getEditor().getActionMap().get( "refresh" ) );
  
  		add( tb, BorderLayout.SOUTH );
  	}
  
  	public void dispose() {
  		editor = null;
  	}
  
  	void refresh() {
  		if ( svgView == null ) {
  			svgView = new JSVGCanvas();
  			add( svgView, BorderLayout.CENTER );
  			invalidate();
  			validate();
  			repaint();
  		}
  
  		try {
  			String xml = editor.getMainContainer().getText();
  			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
  			dbf.setNamespaceAware( true );
  			DocumentBuilder db = dbf.newDocumentBuilder();
  			Document doc = db.parse( new InputSource( new StringReader( xml ) ) );
  			svgView.setDocument( doc );
  		} catch( Exception exc ) {
  			exc.printStackTrace();
  		}
  	}
  	
  	/////////////////////////////////////////////////////////////////////
  	
  	class RefreshAction extends AbstractAction {
  	
  		public RefreshAction() {
  			putValue( 
  				Action.SHORT_DESCRIPTION, 
  				"Refresh the CSS Preview" 
  			);
  			putValue( 
  				Action.SMALL_ICON, 
  				new ImageIcon( 
  					getClass().getResource( "refresh.png" )
  				) 
  			);
  		}
  
  		public void actionPerformed(ActionEvent e) {
  			refresh();
  		}
  		
  	}
  	
  }
  