001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/ogcwebservices/wms/GraphicContextFactory.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 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.ogcwebservices.wms;
045
046 import java.awt.Graphics;
047 import java.awt.image.BufferedImage;
048
049 import org.apache.batik.dom.GenericDOMImplementation;
050 import org.apache.batik.svggen.SVGGraphics2D;
051 import org.w3c.dom.DOMImplementation;
052 import org.w3c.dom.Document;
053
054
055 /**
056 *
057 *
058 * @version $Revision: 6259 $
059 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
060 */
061 public class GraphicContextFactory {
062
063 /**
064 * creates a graphic target object for the passed mime type. The target will
065 * be the object where to render the to. A <tt>BufferedImage</tt> for raster
066 * image mime types and a DOM <tt>Document</tt> for SVG.
067 *
068 * @param mimeType mime type to create a object for
069 * @param width width of the desired target object
070 * @param height height of the desired target object
071 *
072 * @return object to render to
073 */
074 public static synchronized Object createGraphicTarget( String mimeType, int width, int height ) {
075 // to avoid errors:
076 mimeType = mimeType.toLowerCase();
077
078 Object o = null;
079 if ( mimeType.equals( "image/jpg" ) || mimeType.equals( "image/jpeg" ) ||
080 mimeType.equals( "image/bmp" ) || mimeType.equals( "image/tif" ) ||
081 mimeType.equals( "image/tiff" ) ) {
082 o = new BufferedImage( width, height, BufferedImage.TYPE_INT_RGB );
083 } else if ( mimeType.equals( "image/gif" ) || mimeType.equals( "image/png" ) ) {
084 o = new BufferedImage( width, height, BufferedImage.TYPE_INT_ARGB );
085 } else if ( mimeType.equals( "image/svg+xml" ) ||
086 mimeType.equals( "image/svg xml" ) ) {
087 // Get a DOMImplementation
088 DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
089
090 // Create an instance of org.w3c.dom.Document
091 o = domImpl.createDocument( null, "svg", null );
092 }
093
094 return o;
095 }
096
097 /**
098 * creates a graphic context for the passed target considering the passed
099 * mime type
100 *
101 * @param mimeType mime type of the graphic (target)
102 * @param target object to render to.
103 *
104 * @return graphic context of the target
105 */
106 public static synchronized Graphics createGraphicContext( String mimeType, Object target ) {
107 // to avoid errors:
108 mimeType = mimeType.toLowerCase();
109
110 Graphics g = null;
111
112 if ( mimeType.equals( "image/jpg" ) || mimeType.equals( "image/jpeg" ) ||
113 mimeType.equals( "image/bmp" ) || mimeType.equals( "image/tif" ) ||
114 mimeType.equals( "image/tiff" ) || mimeType.equals( "image/gif" ) ||
115 mimeType.equals( "image/png" ) ) {
116 g = ( (BufferedImage)target ).getGraphics();
117 } else if ( mimeType.equals( "image/svg+xml" ) ||
118 mimeType.equals( "image/svg xml" ) ) {
119 // Create an instance of the SVG Generator
120 g = new SVGGraphics2D( (Document)target );
121 }
122
123 return g;
124 }
125 }/* ********************************************************************
126 Changes to this class. What the people have been up to:
127 $Log$
128 Revision 1.8 2007/01/24 13:05:13 schmitz
129 Changed the WMS to ignore case in mime-types of the format parameter.
130
131 Revision 1.7 2006/07/12 14:46:17 poth
132 comment footer added
133
134 ********************************************************************** */