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/* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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* full list of contributors). Published under the Clear BSD license. |
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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* full text of the license. */ |
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/** |
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* @requires OpenLayers/Format/XML.js |
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* @requires OpenLayers/Style.js |
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* @requires OpenLayers/Rule.js |
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* @requires OpenLayers/Filter/FeatureId.js |
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* @requires OpenLayers/Filter/Logical.js |
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* @requires OpenLayers/Filter/Comparison.js |
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* @requires OpenLayers/Filter/Spatial.js |
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*/ |
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/** |
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* Class: OpenLayers.Format.SLD |
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* Read/Wite SLD. Create a new instance with the <OpenLayers.Format.SLD> |
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* constructor. |
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* |
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* Inherits from: |
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* - <OpenLayers.Format.XML> |
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*/ |
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OpenLayers.Format.SLD = OpenLayers.Class(OpenLayers.Format.XML, { |
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/** |
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* APIProperty: defaultVersion |
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* {String} Version number to assume if none found. Default is "1.0.0". |
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*/ |
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defaultVersion: "1.0.0", |
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/** |
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* APIProperty: version |
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* {String} Specify a version string if one is known. |
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*/ |
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version: null, |
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/** |
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* APIProperty: namedLayersAsArray |
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* {Boolean} Generate a namedLayers array. If false, the namedLayers |
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* property value will be an object keyed by layer name. Default is |
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* false. |
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*/ |
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namedLayersAsArray: false, |
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/** |
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* Property: parser |
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* {Object} Instance of the versioned parser. Cached for multiple read and |
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* write calls of the same version. |
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*/ |
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parser: null, |
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/** |
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* Constructor: OpenLayers.Format.SLD |
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* Create a new parser for SLD. |
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* |
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* Parameters: |
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* options - {Object} An optional object whose properties will be set on |
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* this instance. |
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*/ |
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initialize: function(options) { |
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OpenLayers.Format.XML.prototype.initialize.apply(this, [options]); |
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}, |
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/** |
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* APIMethod: write |
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* Write a SLD document given a list of styles. |
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* |
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* Parameters: |
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* sld - {Object} An object representing the SLD. |
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* options - {Object} Optional configuration object. |
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* |
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* Returns: |
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* {String} An SLD document string. |
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*/ |
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write: function(sld, options) { |
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var version = (options && options.version) || |
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this.version || this.defaultVersion; |
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if(!this.parser || this.parser.VERSION != version) { |
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var format = OpenLayers.Format.SLD[ |
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"v" + version.replace(/\./g, "_") |
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]; |
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if(!format) { |
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throw "Can't find a SLD parser for version " + |
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version; |
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} |
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this.parser = new format(this.options); |
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} |
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var root = this.parser.write(sld); |
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return OpenLayers.Format.XML.prototype.write.apply(this, [root]); |
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}, |
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/** |
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* APIMethod: read |
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* Read and SLD doc and return an object representing the SLD. |
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* |
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* Parameters: |
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* data - {String | DOMElement} Data to read. |
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* options - {Object} Options for the reader. |
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* |
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* Returns: |
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* {Object} An object representing the SLD. |
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*/ |
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read: function(data, options) { |
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if(typeof data == "string") { |
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data = OpenLayers.Format.XML.prototype.read.apply(this, [data]); |
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} |
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var root = data.documentElement; |
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var version = this.version; |
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if(!version) { |
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version = root.getAttribute("version"); |
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if(!version) { |
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version = this.defaultVersion; |
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} |
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} |
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if(!this.parser || this.parser.VERSION != version) { |
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var format = OpenLayers.Format.SLD[ |
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"v" + version.replace(/\./g, "_") |
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]; |
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if(!format) { |
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throw "Can't find a SLD parser for version " + |
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version; |
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} |
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this.parser = new format(this.options); |
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} |
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var sld = this.parser.read(data, options); |
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return sld; |
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}, |
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CLASS_NAME: "OpenLayers.Format.SLD" |
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}); |
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