content: package com.japisoft.editix.ui.xslt;
  
  import java.awt.Color;
  import java.awt.FontMetrics;
  import java.awt.Graphics;
  import java.awt.Rectangle;
  import java.awt.Shape;
  
  import javax.swing.text.Document;
  import javax.swing.text.JTextComponent;
  import javax.swing.text.Highlighter.HighlightPainter;
  
  /**
  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 CurrentHighlighter implements HighlightPainter {
  
  	static Color lineColor = new Color( 150, 220, 150 );
  	
  	public void paint(Graphics g, int p0, int p1, Shape bounds,
  			JTextComponent textComponent) {
  
  		FontMetrics metrics = g.getFontMetrics();
  		Document doc = textComponent.getDocument();
  		int lineNo = doc.getDefaultRootElement().getElementIndex(p0);
  
  		Rectangle rect = (Rectangle) bounds;
  		int height = metrics.getHeight();
  		int x = rect.x;
  		int y = rect.y + height * lineNo;
  		int width = textComponent.getWidth();
  
  		g.setColor(lineColor);
  		g.fillRect( x, y, width, height );
  		g.draw3DRect( x, y, width, height, true );		
  
  	}
  	
  	
  }
  