001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/portal/context/StyleList.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2007 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53115 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042
043 ---------------------------------------------------------------------------*/
044 package org.deegree.portal.context;
045
046 import java.util.HashMap;
047
048
049 /**
050 * encapsulates a StyleList as defined by the OGC Web Map Context specification
051 *
052 * @version $Revision: 6962 $
053 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
054 */
055 public class StyleList {
056 private HashMap<String,Style> styles = new HashMap<String,Style>();
057 private Style current = null;
058
059 /**
060 * Creates a new StyleList object.
061 *
062 * @param styles
063 */
064 public StyleList( Style[] styles ) throws ContextException {
065 setStyles( styles );
066 }
067
068 /**
069 * returns an array of all styles known by a layer
070 *
071 * @return all styles
072 */
073 public Style[] getStyles() {
074 Style[] fr = new Style[styles.size()];
075 return styles.values().toArray( fr );
076 }
077
078 /**
079 * sets alla styles known by a layer
080 *
081 * @param styles
082 *
083 * @throws ContextException
084 */
085 public void setStyles( Style[] styles ) throws ContextException {
086 if ( ( styles == null ) || ( styles.length == 0 ) ) {
087 throw new ContextException( "at least one style must be defined for a layer" );
088 }
089
090 this.styles.clear();
091
092 for ( int i = 0; i < styles.length; i++ ) {
093 if ( styles[i].isCurrent() ) {
094 current = styles[i];
095 }
096 this.styles.put( styles[i].getName(), styles[i] );
097 }
098 }
099
100 /**
101 * returns the current style
102 *
103 * @return current style
104 */
105 public Style getCurrentStyle() {
106 return current;
107 }
108
109
110 /**
111 *
112 *
113 * @param name
114 *
115 * @return named style
116 */
117 public Style getStyle( String name ) {
118 return styles.get( name );
119 }
120
121 /**
122 *
123 *
124 * @param style
125 */
126 public void addStyle( Style style ) {
127 if ( style.isCurrent() ) {
128 current.setCurrent( false );
129 current = style;
130 }
131 styles.put( style.getName(), style );
132 }
133
134 /**
135 *
136 *
137 * @param name
138 *
139 * @return removed style
140 */
141 public Style removeStyle( String name ) {
142 return styles.remove( name );
143 }
144
145 /**
146 *
147 */
148 public void clear() {
149 styles.clear();
150 }
151
152
153 }