Source Code Cross Referenced for SLDContrastEnhancementBinding.java in  » GIS » GeoTools-2.4.1 » org » geotools » sld » bindings » Java Source Code / Java DocumentationJava Source Code and Java Documentation

001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2002-2006, GeoTools Project Managment Committee (PMC)
005:         *
006:         *    This library is free software; you can redistribute it and/or
007:         *    modify it under the terms of the GNU Lesser General Public
008:         *    License as published by the Free Software Foundation;
009:         *    version 2.1 of the License.
010:         *
011:         *    This library is distributed in the hope that it will be useful,
012:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         *    Lesser General Public License for more details.
015:         */
016:        package org.geotools.sld.bindings;
017:
018:        import org.picocontainer.MutablePicoContainer;
019:        import org.w3c.dom.Document;
020:        import org.w3c.dom.Element;
021:        import javax.xml.namespace.QName;
022:        import org.geotools.filter.FilterFactory;
023:        import org.geotools.styling.ContrastEnhancement;
024:        import org.geotools.styling.StyleFactory;
025:        import org.geotools.xml.AbstractComplexBinding;
026:        import org.geotools.xml.ElementInstance;
027:        import org.geotools.xml.Node;
028:
029:        /**
030:         * Binding object for the element http://www.opengis.net/sld:ContrastEnhancement.
031:         *
032:         * <p>
033:         *        <pre>
034:         *         <code>
035:         *  &lt;xsd:element name="ContrastEnhancement"&gt;
036:         *      &lt;xsd:annotation&gt;
037:         *          &lt;xsd:documentation&gt;         &quot;ContrastEnhancement&quot;
038:         *              defines the &apos;stretching&apos; of contrast for a
039:         *              channel of a false-color image or for a whole grey/color
040:         *              image.         Contrast enhancement is used to make ground
041:         *              features in images         more visible.       &lt;/xsd:documentation&gt;
042:         *      &lt;/xsd:annotation&gt;
043:         *      &lt;xsd:complexType&gt;
044:         *          &lt;xsd:sequence&gt;
045:         *              &lt;xsd:choice minOccurs="0"&gt;
046:         *                  &lt;xsd:element ref="sld:Normalize"/&gt;
047:         *                  &lt;xsd:element ref="sld:Histogram"/&gt;
048:         *              &lt;/xsd:choice&gt;
049:         *              &lt;xsd:element ref="sld:GammaValue" minOccurs="0"/&gt;
050:         *          &lt;/xsd:sequence&gt;
051:         *      &lt;/xsd:complexType&gt;
052:         *  &lt;/xsd:element&gt;
053:         *
054:         *          </code>
055:         *         </pre>
056:         * </p>
057:         *
058:         * @generated
059:         */
060:        public class SLDContrastEnhancementBinding extends
061:                AbstractComplexBinding {
062:            StyleFactory styleFactory;
063:            FilterFactory filterFactory;
064:
065:            public SLDContrastEnhancementBinding(StyleFactory styleFactory,
066:                    FilterFactory filterFactory) {
067:                this .styleFactory = styleFactory;
068:                this .filterFactory = filterFactory;
069:            }
070:
071:            /**
072:             * @generated
073:             */
074:            public QName getTarget() {
075:                return SLD.CONTRASTENHANCEMENT;
076:            }
077:
078:            /**
079:             * <!-- begin-user-doc -->
080:             * <!-- end-user-doc -->
081:             *
082:             * @generated modifiable
083:             */
084:            public int getExecutionMode() {
085:                return AFTER;
086:            }
087:
088:            /**
089:             * <!-- begin-user-doc -->
090:             * <!-- end-user-doc -->
091:             *
092:             * @generated modifiable
093:             */
094:            public Class getType() {
095:                return ContrastEnhancement.class;
096:            }
097:
098:            /**
099:             * <!-- begin-user-doc -->
100:             * <!-- end-user-doc -->
101:             *
102:             * @generated modifiable
103:             */
104:            public void initialize(ElementInstance instance, Node node,
105:                    MutablePicoContainer context) {
106:            }
107:
108:            /**
109:             * <!-- begin-user-doc -->
110:             * <!-- end-user-doc -->
111:             *
112:             * @generated modifiable
113:             */
114:            public Object parse(ElementInstance instance, Node node,
115:                    Object value) throws Exception {
116:                ContrastEnhancement ce = styleFactory
117:                        .createContrastEnhancement();
118:
119:                if (node.getChildValue("GammaValue") != null) {
120:                    Double gamma = (Double) node.getChildValue("GammaValue");
121:                    ce.setGammaValue(filterFactory
122:                            .createLiteralExpression(gamma.doubleValue()));
123:                }
124:
125:                if (node.getChild("Normalize") != null) {
126:                    ce.setNormalize();
127:                } else {
128:                    if (node.getChild("Histogram") != null) {
129:                        ce.setHistogram();
130:                    }
131:                }
132:
133:                return ce;
134:            }
135:        }