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/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
* full list of contributors). Published under the 2-clause BSD license.
* See license.txt in the OpenLayers distribution or repository for the
* full text of the license. */
/**
* @requires OpenLayers/Format/WMC/v1.js
*/
/**
* Class: OpenLayers.Format.WMC.v1_1_0
* Read and write WMC version 1.1.0.
*
* Differences between 1.1.0 and 1.0.0:
* - 1.1.0 Layers have optional sld:MinScaleDenominator and
* sld:MaxScaleDenominator
*
* Inherits from:
* - <OpenLayers.Format.WMC.v1>
*/
OpenLayers.Format.WMC.v1_1_0 = OpenLayers.Class(
OpenLayers.Format.WMC.v1, {
/**
* Constant: VERSION
* {String} 1.1.0
*/
VERSION: "1.1.0",
/**
* Property: schemaLocation
* {String} http://www.opengis.net/context
* http://schemas.opengis.net/context/1.1.0/context.xsd
*/
schemaLocation: "http://www.opengis.net/context http://schemas.opengis.net/context/1.1.0/context.xsd",
/**
* Constructor: OpenLayers.Format.WMC.v1_1_0
* Instances of this class are not created directly. Use the
* <OpenLayers.Format.WMC> constructor instead.
*
* Parameters:
* options - {Object} An optional object whose properties will be set on
* this instance.
*/
initialize: function(options) {
OpenLayers.Format.WMC.v1.prototype.initialize.apply(
this, [options]
);
},
/**
* Method: read_sld_MinScaleDenominator
* Read a sld:MinScaleDenominator node.
*
* Parameters:
* layerContext - {Object} An object representing a layer.
* node - {Element} An element node.
*/
read_sld_MinScaleDenominator: function(layerContext, node) {
var minScaleDenominator = parseFloat(this.getChildValue(node));
if (minScaleDenominator > 0) {
layerContext.maxScale = minScaleDenominator;
}
},
/**
* Method: read_sld_MaxScaleDenominator
* Read a sld:MaxScaleDenominator node.
*
* Parameters:
* layerContext - {Object} An object representing a layer.
* node - {Element} An element node.
*/
read_sld_MaxScaleDenominator: function(layerContext, node) {
layerContext.minScale = parseFloat(this.getChildValue(node));
},
/**
* Method: read_wmc_SRS
*/
read_wmc_SRS: function(layerContext, node) {
if (! ("srs" in layerContext)) {
layerContext.srs = {};
}
layerContext.srs[this.getChildValue(node)] = true;
},
/**
* Method: write_wmc_Layer
* Create a Layer node given a layer context object. This method adds
* elements specific to version 1.1.0.
*
* Parameters:
* context - {Object} A layer context object.}
*
* Returns:
* {Element} A WMC Layer element node.
*/
write_wmc_Layer: function(context) {
var node = OpenLayers.Format.WMC.v1.prototype.write_wmc_Layer.apply(
this, [context]
);
// min/max scale denominator elements go before the 4th element in v1
if(context.maxScale) {
var minSD = this.createElementNS(
this.namespaces.sld, "sld:MinScaleDenominator"
);
minSD.appendChild(this.createTextNode(context.maxScale.toPrecision(16)));
node.appendChild(minSD);
}
if(context.minScale) {
var maxSD = this.createElementNS(
this.namespaces.sld, "sld:MaxScaleDenominator"
);
maxSD.appendChild(this.createTextNode(context.minScale.toPrecision(16)));
node.appendChild(maxSD);
}
// optional SRS element(s)
if (context.srs) {
for(var name in context.srs) {
node.appendChild(this.createElementDefaultNS("SRS", name));
}
}
// optional FormatList element
node.appendChild(this.write_wmc_FormatList(context));
// optional StyleList element
node.appendChild(this.write_wmc_StyleList(context));
// optional DimensionList element
if (context.dimensions) {
node.appendChild(this.write_wmc_DimensionList(context));
}
// OpenLayers specific properties go in an Extension element
node.appendChild(this.write_wmc_LayerExtension(context));
return node;
},
CLASS_NAME: "OpenLayers.Format.WMC.v1_1_0"
});
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