//$HeadURL$
/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2008 by:
Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53177 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.igeo.views.swing.util;
import static org.deegree.framework.log.LoggerFactory.getLogger;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import org.deegree.framework.log.ILogger;
/**
*
*
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @author last edited by: $Author$
*
* @version. $Revision$, $Date$
*/
public class IconRegistry {
private static final ILogger LOG = getLogger( IconRegistry.class );
private static final String ICONROOT = "/org/deegree/igeo/views/images/";
private static Map<String, Icon> iconMap;
static {
if ( iconMap == null ) {
iconMap = new HashMap<String, Icon>( 100 );
}
}
/**
* returns an icon for a name. If a icon with passed name is not available within the registy first it will be
* looked if the name is an absolute reference (starting with '/'). If so it will be loaded using
* <code>IconRegistry.class.getResource( name )</code>. If not icon root path (/org/deegree/igeo/views/images/) will
* be added and loadin will be trieed again.
*
* @param name
* e.g. "layer.gif" or "/org/deegree/igeo/views/images/add.gif"
* @return {@link ImageIcon}
*/
public static Icon getIcon( String name ) {
Icon icon = iconMap.get( name );
if ( icon == null ) {
try {
if ( name.startsWith( "/" ) ) {
icon = new ImageIcon( IconRegistry.class.getResource( name ) );
} else {
icon = new ImageIcon( IconRegistry.class.getResource( ICONROOT + name ) );
}
iconMap.put( name, icon );
} catch ( NullPointerException e ) {
LOG.logError( "Error while loading the icon named " + name, e );
}
}
return icon;
}
/**
* returns an icon for a URL. If a icon with passed name is not available within the registy if will be loaded from
* the passed URL.
*
* @param url
* must be absolute
* @return {@link ImageIcon}
*/
public static Icon getIcon( URL url ) {
String urlTxt = null;
try {
urlTxt = url.toURI().toASCIIString();
} catch ( Exception e ) {
e.printStackTrace();
}
Icon icon = iconMap.get( urlTxt );
if ( icon == null ) {
icon = new ImageIcon( url );
iconMap.put( urlTxt, icon );
}
return icon;
}
}