content: package com.japisoft.xmlpad.bookmark;
  
  import java.awt.Color;
  import java.awt.FontMetrics;
  import java.awt.Graphics;
  import java.awt.Rectangle;
  import java.awt.Shape;
  
  import javax.swing.Icon;
  import javax.swing.text.Document;
  import javax.swing.text.JTextComponent;
  import javax.swing.text.Highlighter.HighlightPainter;
  
  import com.japisoft.framework.toolkit.FileToolkit;
  import com.japisoft.xmlpad.XMLContainer;
  import com.japisoft.xmlpad.editor.XMLPadDocument;
  
  /**
  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 DefaultBookmarkContext implements BookmarkContext {
  
  	private Icon icon;
  	private Color lineColor;
  
  	/**
  	 * @param icon
  	 *            A small icon for each bookmark
  	 * @param Color
  	 *            lineColor color for each bookmarked line
  	 */
  	public DefaultBookmarkContext(Icon icon, Color lineColor) {
  		this.icon = icon;
  		this.lineColor = lineColor;
  	}
  
  	public Icon getIcon() {
  		return icon;
  	}
  
  	public Color getColor() {
  		return lineColor;
  	}
  	
  	BookmarkModel model = null;
  
  	public BookmarkModel getModel() {
  		if (model == null)
  			model = new DefaultBookmarkModel();
  		return model;
  	}
  
  	/** @return <code>true</code> if this line (starting from 0) match one bookmark */
  	public boolean matchLine( 
  			String uri, 
  			int line, 
  			XMLContainer container ) {
  		if ( model == null )
  			return false;
  		for ( int i = 0; i < model.getBookmarkCount(); i++ ) {
  			BookmarkPosition pos = model.getBookmarkPositionAt( i );
  			int offset = pos.getOffset();
  			XMLContainer container2 = container;
  			if ( pos.getSource() instanceof XMLContainer ) {
  				container2 = ( XMLContainer )pos.getSource();
  				if ( !FileToolkit.sameFileName( 
  						container2.getCurrentDocumentLocation(), uri ) )
  					continue;
  			}
  			XMLPadDocument document = 
  				container2.getXMLDocument();
  			int line2 = 
  				document.getDefaultRootElement().getElementIndex( offset );
  			if ( line == line2 )
  				return true;
  		}
  		return false;
  	}
  	
  	private DefaultHighlighter defaultHighlight;
  	
  	public HighlightPainter getHighlightPainter() {
  		if ( defaultHighlight == null )
  			defaultHighlight = new DefaultHighlighter();
  		return defaultHighlight;
  	}
  	
  	class DefaultHighlighter implements HighlightPainter {
  
  		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);
  
  		}
  
  	}
  
  }
  