1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for * full list of contributors). Published under the Clear BSD license. * See http://svn.openlayers.org/trunk/openlayers/license.txt for the * full text of the license. */ /** * @requires OpenLayers/Format/XML.js * @requires OpenLayers/Format/Context.js */ /** * Class: OpenLayers.Format.WMC * Read and write Web Map Context documents. * * Inherits from: * - <OpenLayers.Format.XML> */ OpenLayers.Format.WMC = OpenLayers.Class(OpenLayers.Format.Context, { /** * APIProperty: defaultVersion * {String} Version number to assume if none found. Default is "1.1.0". */ defaultVersion: "1.1.0", /** * Method: getParser * Get the WMC parser given a version. Create a new parser if it does not * already exist. * * Parameters: * version - {String} The version of the parser. * * Returns: * {<OpenLayers.Format.WMC.v1>} A WMC parser. */ getParser: function(version) { var v = version || this.version || this.defaultVersion; if(!this.parser || this.parser.VERSION != v) { var format = OpenLayers.Format.WMC[ "v" + v.replace(/\./g, "_") ]; if(!format) { throw "Can't find a WMC parser for version " + v; } this.parser = new format(this.options); } return this.parser; }, /** * Method: layerToContext * Create a layer context object given a wms layer object. * * Parameters: * obj - {<OpenLayers.Layer.WMS>} The layer. * * Returns: * {Object} A layer context object. */ layerToContext: function(layer) { var parser = this.getParser(); var layerContext = { queryable: layer.queryable, visibility: layer.visibility, name: layer.params["LAYERS"], title: layer.name, metadataURL: layer.metadataURL, version: layer.params["VERSION"], url: layer.url, maxExtent: layer.maxExtent, transparent: layer.params["TRANSPARENT"], numZoomLevels: layer.numZoomLevels, units: layer.units, isBaseLayer: layer.isBaseLayer, opacity: layer.opacity, displayInLayerSwitcher: layer.displayInLayerSwitcher, singleTile: layer.singleTile, tileSize: (layer.singleTile || !layer.tileSize) ? undefined : {width: layer.tileSize.w, height: layer.tileSize.h}, minScale : (layer.options.resolutions || layer.options.scales || layer.options.maxResolution || layer.options.minScale) ? layer.minScale : undefined, maxScale : (layer.options.resolutions || layer.options.scales || layer.options.minResolution || layer.options.maxScale) ? layer.maxScale : undefined, formats: [{ value: layer.params["FORMAT"], current: true }], styles: [{ href: layer.params["SLD"], body: layer.params["SLD_BODY"], name: layer.params["STYLES"] || parser.defaultStyleName, title: parser.defaultStyleTitle, current: true }] }; return layerContext; }, /** * Method: toContext * Create a context object free from layer given a map or a * context object. * * Parameters: * obj - {<OpenLayers.Map> | Object} The map or context. * * Returns: * {Object} A context object. */ toContext: function(obj) { var context = {}; var layers = obj.layers; if(obj.CLASS_NAME == "OpenLayers.Map") { context.bounds = obj.getExtent(); context.maxExtent = obj.maxExtent; context.projection = obj.projection; context.size = obj.getSize(); } else { // copy all obj properties except the "layers" property OpenLayers.Util.applyDefaults(context, obj); if(context.layers != undefined) { delete(context.layers); } } if (context.layersContext == undefined) { context.layersContext = []; } // let's convert layers into layersContext object (if any) if (layers != undefined && layers instanceof Array) { for (var i=0, len=layers.length; i<len; i++) { var layer = layers[i]; if(layer instanceof OpenLayers.Layer.WMS) { context.layersContext.push(this.layerToContext(layer)); } } } return context; }, CLASS_NAME: "OpenLayers.Format.WMC" }); |