/* 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/Rule.js
* @requires OpenLayers/Format/SLD.js
* @requires OpenLayers/Format/Filter/v1_0_0.js
*/
/**
* Class: OpenLayers.Format.SLD.v1
* Superclass for SLD version 1 parsers.
*
* Inherits from:
* - <OpenLayers.Format.Filter.v1_0_0>
*/
OpenLayers.Format.SLD.v1 = OpenLayers.Class(OpenLayers.Format.Filter.v1_0_0, {
/**
* Property: namespaces
* {Object} Mapping of namespace aliases to namespace URIs.
*/
namespaces: {
sld: "http://www.opengis.net/sld",
ogc: "http://www.opengis.net/ogc",
gml: "http://www.opengis.net/gml",
xlink: "http://www.w3.org/1999/xlink",
xsi: "http://www.w3.org/2001/XMLSchema-instance"
},
/**
* Property: defaultPrefix
*/
defaultPrefix: "sld",
/**
* Property: schemaLocation
* {String} Schema location for a particular minor version.
*/
schemaLocation: null,
/**
* APIProperty: multipleSymbolizers
* {Boolean} Support multiple symbolizers per rule. Default is false. if
* true, an OpenLayers.Style2 instance will be created to represent
* user styles instead of an OpenLayers.Style instace. The
* OpenLayers.Style2 class allows collections of rules with multiple
* symbolizers, but is not currently useful for client side rendering.
* If multiple symbolizers is true, multiple FeatureTypeStyle elements
* are preserved in reading/writing by setting symbolizer zIndex values.
* In addition, the <defaultSymbolizer> property is ignored if
* multiple symbolizers are supported (defaults should be applied
* when rendering).
*/
multipleSymbolizers: false,
/**
* Property: featureTypeCounter
* {Number} Private counter for multiple feature type styles.
*/
featureTypeCounter: null,
/**
* APIProperty: defaultSymbolizer.
* {Object} A symbolizer with the SLD defaults.
*/
defaultSymbolizer: {
fillColor: "#808080",
fillOpacity: 1,
strokeColor: "#000000",
strokeOpacity: 1,
strokeWidth: 1,
strokeDashstyle: "solid",
pointRadius: 3,
graphicName: "square"
},
/**
* Constructor: OpenLayers.Format.SLD.v1
* Instances of this class are not created directly. Use the
* <OpenLayers.Format.SLD> constructor instead.
*
* Parameters:
* options - {Object} An optional object whose properties will be set on
* this instance.
*/
initialize: function(options) {
OpenLayers.Format.Filter.v1_0_0.prototype.initialize.apply(this, [options]);
},
/**
* Method: read
*
* Parameters:
* data - {DOMElement} An SLD document element.
* options - {Object} Options for the reader.
*
* Valid options:
* namedLayersAsArray - {Boolean} Generate a namedLayers array. If false,
* the namedLayers property value will be an object keyed by layer name.
* Default is false.
*
* Returns:
* {Object} An object representing the SLD.
*/
read: function(data, options) {
options = OpenLayers.Util.applyDefaults(options, this.options);
var sld = {
namedLayers: options.namedLayersAsArray === true ? [] : {}
};
this.readChildNodes(data, sld);
return sld;
},
/**
* Property: readers
* Contains public functions, grouped by namespace prefix, that will
* be applied when a namespaced node is found matching the function
* name. The function will be applied in the scope of this parser
* with two arguments: the node being read and a context object passed
* from the parent.
*/
readers: OpenLayers.Util.applyDefaults({
"sld": {
"StyledLayerDescriptor": function(node, sld) {
sld.version = node.getAttribute("version");
this.readChildNodes(node, sld);
},
"Name": function(node, obj) {
obj.name = this.getChildValue(node);
},
"Title": function(node, obj) {
obj.title = this.getChildValue(node);
},
"Abstract": function(node, obj) {
obj.description = this.getChildValue(node);
},
"NamedLayer": function(node, sld) {
var layer = {
userStyles: [],
namedStyles: []
};
this.readChildNodes(node, layer);
// give each of the user styles this layer name
for(var i=0, len=layer.userStyles.length; i<len; ++i) {
layer.userStyles[i].layerName = layer.name;
}
if(sld.namedLayers instanceof Array) {
sld.namedLayers.push(layer);
} else {
sld.namedLayers[layer.name] = layer;
}
},
"NamedStyle": function(node, layer) {
layer.namedStyles.push(
this.getChildName(node.firstChild)
);
},
"UserStyle": function(node, layer) {
var obj = {defaultsPerSymbolizer: true, rules: []};
this.featureTypeCounter = -1;
this.readChildNodes(node, obj);
var style;
if (this.multipleSymbolizers) {
delete obj.defaultsPerSymbolizer;
style = new OpenLayers.Style2(obj);
} else {
style = new OpenLayers.Style(this.defaultSymbolizer, obj);
}
layer.userStyles.push(style);
},
"IsDefault": function(node, style) {
if(this.getChildValue(node) == "1") {
style.isDefault = true;
}
},
"FeatureTypeStyle": function(node, style) {
++this.featureTypeCounter;
var obj = {
rules: this.multipleSymbolizers ? style.rules : []
};
this.readChildNodes(node, obj);
if (!this.multipleSymbolizers) {
style.rules = obj.rules;
}
},
"Rule": function(node, obj) {
var config;
if (this.multipleSymbolizers) {
config = {symbolizers: []};
}
var rule = new OpenLayers.Rule(config);
this.readChildNodes(node, rule);
obj.rules.push(rule);
},
"ElseFilter": function(node, rule) {
rule.elseFilter = true;
},
"MinScaleDenominator": function(node, rule) {
rule.minScaleDenominator = parseFloat(this.getChildValue(node));
},
"MaxScaleDenominator": function(node, rule) {
rule.maxScaleDenominator = parseFloat(this.getChildValue(node));
},
"TextSymbolizer": function(node, rule) {
var config = {};
this.readChildNodes(node, config);
if (this.multipleSymbolizers) {
config.zIndex = this.featureTypeCounter;
rule.symbolizers.push(
new OpenLayers.Symbolizer.Text(config)
);
} else {
rule.symbolizer["Text"] = OpenLayers.Util.applyDefaults(
config, rule.symbolizer["Text"]
);
}
},
"Label": function(node, symbolizer) {
// only supporting literal or property name
var obj = {};
this.readChildNodes(node, obj);
if(obj.property) {
symbolizer.label = "${" + obj.property + "}";
} else {
var value = this.readOgcExpression(node);
if(value) {
symbolizer.label = value;
}
}
},
"Font": function(node, symbolizer) {
this.readChildNodes(node, symbolizer);
},
"Halo": function(node, symbolizer) {
// halo has a fill, so send fresh object
var obj = {};
this.readChildNodes(node, obj);
symbolizer.haloRadius = obj.haloRadius;
symbolizer.haloColor = obj.fillColor;
symbolizer.haloOpacity = obj.fillOpacity;
},
"Radius": function(node, symbolizer) {
var radius = this.readOgcExpression(node);
if(radius != null) {
// radius is only used for halo
symbolizer.haloRadius = radius;
}
},
"RasterSymbolizer": function(node, rule) {
var config = {};
this.readChildNodes(node, config);
if (this.multipleSymbolizers) {
config.zIndex = this.featureTypeCounter;
rule.symbolizers.push(
new OpenLayers.Symbolizer.Raster(config)
);
} else {
rule.symbolizer["Raster"] = OpenLayers.Util.applyDefaults(
config, rule.symbolizer["Raster"]
);
}
},
"Geometry": function(node, obj) {
obj.geometry = {};
this.readChildNodes(node, obj.geometry);
},
"ColorMap": function(node, symbolizer) {
symbolizer.colorMap = [];
this.readChildNodes(node, symbolizer.colorMap);
},
"ColorMapEntry": function(node, colorMap) {
var q = node.getAttribute("quantity");
var o = node.getAttribute("opacity");
colorMap.push({
color: node.getAttribute("color"),
quantity: q !== null ? parseFloat(q) : undefined,
label: node.getAttribute("label") || undefined,
opacity: o !== null ? parseFloat(o) : undefined
});
},
"LineSymbolizer": function(node, rule) {
var config = {};
this.readChildNodes(node, config);
if (this.multipleSymbolizers) {
config.zIndex = this.featureTypeCounter;
rule.symbolizers.push(
new OpenLayers.Symbolizer.Line(config)
);
} else {
rule.symbolizer["Line"] = OpenLayers.Util.applyDefaults(
config, rule.symbolizer["Line"]
);
}
},
"PolygonSymbolizer": function(node, rule) {
var config = {
fill: false,
stroke: false
};
if (!this.multipleSymbolizers) {
config = rule.symbolizer["Polygon"] || config;
}
this.readChildNodes(node, config);
if (this.multipleSymbolizers) {
config.zIndex = this.featureTypeCounter;
rule.symbolizers.push(
new OpenLayers.Symbolizer.Polygon(config)
);
} else {
rule.symbolizer["Polygon"] = config;
}
},
"PointSymbolizer": function(node, rule) {
var config = {
fill: false,
stroke: false,
graphic: false
};
if (!this.multipleSymbolizers) {
config = rule.symbolizer["Point"] || config;
}
this.readChildNodes(node, config);
if (this.multipleSymbolizers) {
config.zIndex = this.featureTypeCounter;
rule.symbolizers.push(
new OpenLayers.Symbolizer.Point(config)
);
} else {
rule.symbolizer["Point"] = config;
}
},
"Stroke": function(node, symbolizer) {
symbolizer.stroke = true;
this.readChildNodes(node, symbolizer);
},
"Fill": function(node, symbolizer) {
symbolizer.fill = true;
this.readChildNodes(node, symbolizer);
},
"CssParameter": function(node, symbolizer) {
var cssProperty = node.getAttribute("name");
var symProperty = this.cssMap[cssProperty];
if(symProperty) {
// Limited support for parsing of OGC expressions
var value = this.readOgcExpression(node);
// always string, could be an empty string
if(value) {
symbolizer[symProperty] = value;
}
}
},
"Graphic": function(node, symbolizer) {
symbolizer.graphic = true;
var graphic = {};
// painter's order not respected here, clobber previous with next
this.readChildNodes(node, graphic);
// directly properties with names that match symbolizer properties
var properties = [
"stroke", "strokeColor", "strokeWidth", "strokeOpacity",
"strokeLinecap", "fill", "fillColor", "fillOpacity",
"graphicName", "rotation", "graphicFormat"
];
var prop, value;
for(var i=0, len=properties.length; i<len; ++i) {
prop = properties[i];
value = graphic[prop];
if(value != undefined) {
symbolizer[prop] = value;
}
}
// set other generic properties with specific graphic property names
if(graphic.opacity != undefined) {
symbolizer.graphicOpacity = graphic.opacity;
}
if(graphic.size != undefined) {
symbolizer.pointRadius = graphic.size / 2;
}
if(graphic.href != undefined) {
symbolizer.externalGraphic = graphic.href;
}
if(graphic.rotation != undefined) {
symbolizer.rotation = graphic.rotation;
}
},
"ExternalGraphic": function(node, graphic) {
this.readChildNodes(node, graphic);
},
"Mark": function(node, graphic) {
this.readChildNodes(node, graphic);
},
"WellKnownName": function(node, graphic) {
graphic.graphicName = this.getChildValue(node);
},
"Opacity": function(node, obj) {
var opacity = this.readOgcExpression(node);
// always string, could be empty string
if(opacity) {
obj.opacity = opacity;
}
},
"Size": function(node, obj) {
var size = this.readOgcExpression(node);
// always string, could be empty string
if(size) {
obj.size = size;
}
},
"Rotation": function(node, obj) {
var rotation = this.readOgcExpression(node);
// always string, could be empty string
if(rotation) {
obj.rotation = rotation;
}
},
"OnlineResource": function(node, obj) {
obj.href = this.getAttributeNS(
node, this.namespaces.xlink, "href"
);
},
"Format": function(node, graphic) {
graphic.graphicFormat = this.getChildValue(node);
}
}
}, OpenLayers.Format.Filter.v1_0_0.prototype.readers),
/**
* Property: cssMap
* {Object} Object mapping supported css property names to OpenLayers
* symbolizer property names.
*/
cssMap: {
"stroke": "strokeColor",
"stroke-opacity": "strokeOpacity",
"stroke-width": "strokeWidth",
"stroke-linecap": "strokeLinecap",
"stroke-dasharray": "strokeDashstyle",
"fill": "fillColor",
"fill-opacity": "fillOpacity",
"font-family": "fontFamily",
"font-size": "fontSize",
"font-weight": "fontWeight",
"font-style": "fontStyle"
},
/**
* Method: getCssProperty
* Given a symbolizer property, get the corresponding CSS property
* from the <cssMap>.
*
* Parameters:
* sym - {String} A symbolizer property name.
*
* Returns:
* {String} A CSS property name or null if none found.
*/
getCssProperty: function(sym) {
var css = null;
for(var prop in this.cssMap) {
if(this.cssMap[prop] == sym) {
css = prop;
break;
}
}
return css;
},
/**
* Method: getGraphicFormat
* Given a href for an external graphic, try to determine the mime-type.
* This method doesn't try too hard, and will fall back to
* <defautlGraphicFormat> if one of the known <graphicFormats> is not
* the file extension of the provided href.
*
* Parameters:
* href - {String}
*
* Returns:
* {String} The graphic format.
*/
getGraphicFormat: function(href) {
var format, regex;
for(var key in this.graphicFormats) {
if(this.graphicFormats[key].test(href)) {
format = key;
break;
}
}
return format || this.defautlGraphicFormat;
},
/**
* Property: defaultGraphicFormat
* {String} If none other can be determined from <getGraphicFormat>, this
* default will be returned.
*/
defaultGraphicFormat: "image/png",
/**
* Property: graphicFormats
* {Object} Mapping of image mime-types to regular extensions matching
* well-known file extensions.
*/
graphicFormats: {
"image/jpeg": /\.jpe?g$/i,
"image/gif": /\.gif$/i,
"image/png": /\.png$/i
},
/**
* Method: write
*
* Parameters:
* sld - {Object} An object representing the SLD.
*
* Returns:
* {DOMElement} The root of an SLD document.
*/
write: function(sld) {
return this.writers.sld.StyledLayerDescriptor.apply(this, [sld]);
},
/**
* Property: writers
* As a compliment to the readers property, this structure contains public
* writing functions grouped by namespace alias and named like the
* node names they produce.
*/
writers: OpenLayers.Util.applyDefaults({
"sld": {
"StyledLayerDescriptor": function(sld) {
var root = this.createElementNSPlus(
"sld:StyledLayerDescriptor",
{attributes: {
"version": this.VERSION,
"xsi:schemaLocation": this.schemaLocation
}}
);
// For ArcGIS Server it is necessary to define this
// at the root level (see ticket:2166).
root.setAttribute("xmlns:ogc", this.namespaces.ogc);
root.setAttribute("xmlns:gml", this.namespaces.gml);
// add in optional name
if(sld.name) {
this.writeNode("Name", sld.name, root);
}
// add in optional title
if(sld.title) {
this.writeNode("Title", sld.title, root);
}
// add in optional description
if(sld.description) {
this.writeNode("Abstract", sld.description, root);
}
// add in named layers
// allow namedLayers to be an array
if(sld.namedLayers instanceof Array) {
for(var i=0, len=sld.namedLayers.length; i<len; ++i) {
this.writeNode("NamedLayer", sld.namedLayers[i], root);
}
} else {
for(var name in sld.namedLayers) {
this.writeNode("NamedLayer", sld.namedLayers[name], root);
}
}
return root;
},
"Name": function(name) {
return this.createElementNSPlus("sld:Name", {value: name});
},
"Title": function(title) {
return this.createElementNSPlus("sld:Title", {value: title});
},
"Abstract": function(description) {
return this.createElementNSPlus(
"sld:Abstract", {value: description}
);
},
"NamedLayer": function(layer) {
var node = this.createElementNSPlus("sld:NamedLayer");
// add in required name
this.writeNode("Name", layer.name, node);
// optional sld:LayerFeatureConstraints here
// add in named styles
if(layer.namedStyles) {
for(var i=0, len=layer.namedStyles.length; i<len; ++i) {
this.writeNode(
"NamedStyle", layer.namedStyles[i], node
);
}
}
// add in user styles
if(layer.userStyles) {
for(var i=0, len=layer.userStyles.length; i<len; ++i) {
this.writeNode(
"UserStyle", layer.userStyles[i], node
);
}
}
return node;
},
"NamedStyle": function(name) {
var node = this.createElementNSPlus("sld:NamedStyle");
this.writeNode("Name", name, node);
return node;
},
"UserStyle": function(style) {
var node = this.createElementNSPlus("sld:UserStyle");
// add in optional name
if(style.name) {
this.writeNode("Name", style.name, node);
}
// add in optional title
if(style.title) {
this.writeNode("Title", style.title, node);
}
// add in optional description
if(style.description) {
this.writeNode("Abstract", style.description, node);
}
// add isdefault
if(style.isDefault) {
this.writeNode("IsDefault", style.isDefault, node);
}
// add FeatureTypeStyles
if (this.multipleSymbolizers && style.rules) {
// group style objects by symbolizer zIndex
var rulesByZ = {
0: []
};
var zValues = [0];
var rule, ruleMap, symbolizer, zIndex, clone;
for (var i=0, ii=style.rules.length; i<ii; ++i) {
rule = style.rules[i];
if (rule.symbolizers) {
ruleMap = {};
for (var j=0, jj=rule.symbolizers.length; j<jj; ++j) {
symbolizer = rule.symbolizers[j];
zIndex = symbolizer.zIndex;
if (!(zIndex in ruleMap)) {
clone = rule.clone();
clone.symbolizers = [];
ruleMap[zIndex] = clone;
}
ruleMap[zIndex].symbolizers.push(symbolizer.clone());
}
for (zIndex in ruleMap) {
if (!(zIndex in rulesByZ)) {
zValues.push(zIndex);
rulesByZ[zIndex] = [];
}
rulesByZ[zIndex].push(ruleMap[zIndex]);
}
} else {
// no symbolizers in rule
rulesByZ[0].push(rule.clone());
}
}
// write one FeatureTypeStyle per zIndex
zValues.sort();
var rules;
for (var i=0, ii=zValues.length; i<ii; ++i) {
rules = rulesByZ[zValues[i]];
if (rules.length > 0) {
clone = style.clone();
clone.rules = rulesByZ[zValues[i]];
this.writeNode("FeatureTypeStyle", clone, node);
}
}
} else {
this.writeNode("FeatureTypeStyle", style, node);
}
return node;
},
"IsDefault": function(bool) {
return this.createElementNSPlus(
"sld:IsDefault", {value: (bool) ? "1" : "0"}
);
},
"FeatureTypeStyle": function(style) {
var node = this.createElementNSPlus("sld:FeatureTypeStyle");
// OpenLayers currently stores no Name, Title, Abstract,
// FeatureTypeName, or SemanticTypeIdentifier information
// related to FeatureTypeStyle
// add in rules
for(var i=0, len=style.rules.length; i<len; ++i) {
this.writeNode("Rule", style.rules[i], node);
}
return node;
},
"Rule": function(rule) {
var node = this.createElementNSPlus("sld:Rule");
// add in optional name
if(rule.name) {
this.writeNode("Name", rule.name, node);
}
// add in optional title
if(rule.title) {
this.writeNode("Title", rule.title, node);
}
// add in optional description
if(rule.description) {
this.writeNode("Abstract", rule.description, node);
}
// add in LegendGraphic here
// add in optional filters
if(rule.elseFilter) {
this.writeNode("ElseFilter", null, node);
} else if(rule.filter) {
this.writeNode("ogc:Filter", rule.filter, node);
}
// add in scale limits
if(rule.minScaleDenominator != undefined) {
this.writeNode(
"MinScaleDenominator", rule.minScaleDenominator, node
);
}
if(rule.maxScaleDenominator != undefined) {
this.writeNode(
"MaxScaleDenominator", rule.maxScaleDenominator, node
);
}
var type, symbolizer;
if (this.multipleSymbolizers && rule.symbolizers) {
var symbolizer;
for (var i=0, ii=rule.symbolizers.length; i<ii; ++i) {
symbolizer = rule.symbolizers[i];
type = symbolizer.CLASS_NAME.split(".").pop();
this.writeNode(
type + "Symbolizer", symbolizer, node
);
}
} else {
// add in symbolizers (relies on geometry type keys)
var types = OpenLayers.Style.SYMBOLIZER_PREFIXES;
for(var i=0, len=types.length; i<len; ++i) {
type = types[i];
symbolizer = rule.symbolizer[type];
if(symbolizer) {
this.writeNode(
type + "Symbolizer", symbolizer, node
);
}
}
}
return node;
},
"ElseFilter": function() {
return this.createElementNSPlus("sld:ElseFilter");
},
"MinScaleDenominator": function(scale) {
return this.createElementNSPlus(
"sld:MinScaleDenominator", {value: scale}
);
},
"MaxScaleDenominator": function(scale) {
return this.createElementNSPlus(
"sld:MaxScaleDenominator", {value: scale}
);
},
"LineSymbolizer": function(symbolizer) {
var node = this.createElementNSPlus("sld:LineSymbolizer");
this.writeNode("Stroke", symbolizer, node);
return node;
},
"Stroke": function(symbolizer) {
var node = this.createElementNSPlus("sld:Stroke");
// GraphicFill here
// GraphicStroke here
// add in CssParameters
if(symbolizer.strokeColor != undefined) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "strokeColor"},
node
);
}
if(symbolizer.strokeOpacity != undefined) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "strokeOpacity"},
node
);
}
if(symbolizer.strokeWidth != undefined) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "strokeWidth"},
node
);
}
if(symbolizer.strokeDashstyle != undefined && symbolizer.strokeDashstyle !== "solid") {
// assumes valid stroke-dasharray value
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "strokeDashstyle"},
node
);
}
if(symbolizer.strokeLinecap != undefined) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "strokeLinecap"},
node
);
}
return node;
},
"CssParameter": function(obj) {
// not handling ogc:expressions for now
return this.createElementNSPlus("sld:CssParameter", {
attributes: {name: this.getCssProperty(obj.key)},
value: obj.symbolizer[obj.key]
});
},
"TextSymbolizer": function(symbolizer) {
var node = this.createElementNSPlus("sld:TextSymbolizer");
// add in optional Label
if(symbolizer.label != null) {
this.writeNode("Label", symbolizer.label, node);
}
// add in optional Font
if(symbolizer.fontFamily != null ||
symbolizer.fontSize != null ||
symbolizer.fontWeight != null ||
symbolizer.fontStyle != null) {
this.writeNode("Font", symbolizer, node);
}
// add in optional Halo
if(symbolizer.haloRadius != null ||
symbolizer.haloColor != null ||
symbolizer.haloOpacity != null) {
this.writeNode("Halo", symbolizer, node);
}
// add in optional Fill
if(symbolizer.fillColor != null ||
symbolizer.fillOpacity != null) {
this.writeNode("Fill", symbolizer, node);
}
return node;
},
"Font": function(symbolizer) {
var node = this.createElementNSPlus("sld:Font");
// add in CssParameters
if(symbolizer.fontFamily) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fontFamily"},
node
);
}
if(symbolizer.fontSize) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fontSize"},
node
);
}
if(symbolizer.fontWeight) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fontWeight"},
node
);
}
if(symbolizer.fontStyle) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fontStyle"},
node
);
}
return node;
},
"Label": function(label) {
// only the simplest of ogc:expression handled
// {label: "some text and a ${propertyName}"}
var node = this.createElementNSPlus("sld:Label");
var tokens = label.split("${");
node.appendChild(this.createTextNode(tokens[0]));
var item, last;
for(var i=1, len=tokens.length; i<len; i++) {
item = tokens[i];
last = item.indexOf("}");
if(last > 0) {
this.writeNode(
"ogc:PropertyName",
{property: item.substring(0, last)},
node
);
node.appendChild(
this.createTextNode(item.substring(++last))
);
} else {
// no ending }, so this is a literal ${
node.appendChild(
this.createTextNode("${" + item)
);
}
}
return node;
},
"Halo": function(symbolizer) {
var node = this.createElementNSPlus("sld:Halo");
if(symbolizer.haloRadius) {
this.writeNode("Radius", symbolizer.haloRadius, node);
}
if(symbolizer.haloColor || symbolizer.haloOpacity) {
this.writeNode("Fill", {
fillColor: symbolizer.haloColor,
fillOpacity: symbolizer.haloOpacity
}, node);
}
return node;
},
"Radius": function(value) {
return this.createElementNSPlus("sld:Radius", {
value: value
});
},
"RasterSymbolizer": function(symbolizer) {
var node = this.createElementNSPlus("sld:RasterSymbolizer");
if (symbolizer.geometry) {
this.writeNode("Geometry", symbolizer.geometry, node);
}
if (symbolizer.opacity) {
this.writeNode("Opacity", symbolizer.opacity, node);
}
if (symbolizer.colorMap) {
this.writeNode("ColorMap", symbolizer.colorMap, node);
}
return node;
},
"Geometry": function(geometry) {
var node = this.createElementNSPlus("sld:Geometry");
if (geometry.property) {
this.writeNode("ogc:PropertyName", geometry, node);
}
return node;
},
"ColorMap": function(colorMap) {
var node = this.createElementNSPlus("sld:ColorMap");
for (var i=0, len=colorMap.length; i<len; ++i) {
this.writeNode("ColorMapEntry", colorMap[i], node);
}
return node;
},
"ColorMapEntry": function(colorMapEntry) {
var node = this.createElementNSPlus("sld:ColorMapEntry");
var a = colorMapEntry;
node.setAttribute("color", a.color);
a.opacity !== undefined && node.setAttribute("opacity",
parseFloat(a.opacity));
a.quantity !== undefined && node.setAttribute("quantity",
parseFloat(a.quantity));
a.label !== undefined && node.setAttribute("label", a.label);
return node;
},
"PolygonSymbolizer": function(symbolizer) {
var node = this.createElementNSPlus("sld:PolygonSymbolizer");
if(symbolizer.fill !== false) {
this.writeNode("Fill", symbolizer, node);
}
if(symbolizer.stroke !== false) {
this.writeNode("Stroke", symbolizer, node);
}
return node;
},
"Fill": function(symbolizer) {
var node = this.createElementNSPlus("sld:Fill");
// GraphicFill here
// add in CssParameters
if(symbolizer.fillColor) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fillColor"},
node
);
}
if(symbolizer.fillOpacity != null) {
this.writeNode(
"CssParameter",
{symbolizer: symbolizer, key: "fillOpacity"},
node
);
}
return node;
},
"PointSymbolizer": function(symbolizer) {
var node = this.createElementNSPlus("sld:PointSymbolizer");
this.writeNode("Graphic", symbolizer, node);
return node;
},
"Graphic": function(symbolizer) {
var node = this.createElementNSPlus("sld:Graphic");
if(symbolizer.externalGraphic != undefined) {
this.writeNode("ExternalGraphic", symbolizer, node);
} else {
this.writeNode("Mark", symbolizer, node);
}
if(symbolizer.graphicOpacity != undefined) {
this.writeNode("Opacity", symbolizer.graphicOpacity, node);
}
if(symbolizer.pointRadius != undefined) {
this.writeNode("Size", symbolizer.pointRadius * 2, node);
}
if(symbolizer.rotation != undefined) {
this.writeNode("Rotation", symbolizer.rotation, node);
}
return node;
},
"ExternalGraphic": function(symbolizer) {
var node = this.createElementNSPlus("sld:ExternalGraphic");
this.writeNode(
"OnlineResource", symbolizer.externalGraphic, node
);
var format = symbolizer.graphicFormat ||
this.getGraphicFormat(symbolizer.externalGraphic);
this.writeNode("Format", format, node);
return node;
},
"Mark": function(symbolizer) {
var node = this.createElementNSPlus("sld:Mark");
if(symbolizer.graphicName) {
this.writeNode("WellKnownName", symbolizer.graphicName, node);
}
if (symbolizer.fill !== false) {
this.writeNode("Fill", symbolizer, node);
}
if (symbolizer.stroke !== false) {
this.writeNode("Stroke", symbolizer, node);
}
return node;
},
"WellKnownName": function(name) {
return this.createElementNSPlus("sld:WellKnownName", {
value: name
});
},
"Opacity": function(value) {
return this.createElementNSPlus("sld:Opacity", {
value: value
});
},
"Size": function(value) {
return this.createElementNSPlus("sld:Size", {
value: value
});
},
"Rotation": function(value) {
return this.createElementNSPlus("sld:Rotation", {
value: value
});
},
"OnlineResource": function(href) {
return this.createElementNSPlus("sld:OnlineResource", {
attributes: {
"xlink:type": "simple",
"xlink:href": href
}
});
},
"Format": function(format) {
return this.createElementNSPlus("sld:Format", {
value: format
});
}
}
}, OpenLayers.Format.Filter.v1_0_0.prototype.writers),
CLASS_NAME: "OpenLayers.Format.SLD.v1"
});