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<a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008 Overview
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<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
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<h2>GmlRendererOL.js</h2>
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<h4>Summary</h4>
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No overview generated for 'GmlRendererOL.js'<BR/><BR/>
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<b>Class Summary</b>
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</font></td>
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</tr>
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<tr bgcolor="white" class="TableRowColor">
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<td width="15%"><b><a href="GmlRendererOL.html">GmlRendererOL</a></b></td>
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<td> </td>
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</table>
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<hr/>
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<!-- ========== METHOD SUMMARY =========== -->
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<!-- ========== END METHOD SUMMARY =========== -->
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<pre class="sourceview"><span class="comment">/*
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Author: Andreas Hocevar andreas.hocevarATgmail.com
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: GmlRendererOL.js 3962 2008-04-01 13:21:42Z ahocevar $
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*/</span>
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<span class="comment">
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// Ensure this object's dependancies are loaded.</span>
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mapbuilder.loadScript(baseDir+<span class="literal">"/widget/GmlRendererBase.js"</span>);
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<span class="comment">/**
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* Render GML into HTML.
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* this.targetModel references the context model for the map
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* where the content of this widget should be rendered to.
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* If the model doc is not wfs compliant, a stylesheet
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* property has to be set for this widget. The xsl file
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* referenced in this property transforms the model doc to
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* a wfs FeatureCollection.
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* <span class="attrib">@constructor</span>
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* <span class="attrib">@base</span> GmlRendererBase
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* <span class="attrib">@param</span> widgetNode The widget's XML object node from the configuration document.
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* <span class="attrib">@param</span> model The model object that this widget belongs to.
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*/</span>
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<span class="reserved">function</span> GmlRendererOL(widgetNode, model) {
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GmlRendererBase.apply(<span class="reserved">this</span>,new Array(widgetNode, model));
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<span class="comment">
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// create modified OpenLayers GML layer class, which</span>
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<span class="comment"> // uses a gml doc directly instead of loading it from</span>
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<span class="comment"> // an URL</span>
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var OlLayer = OpenLayers.Class(OpenLayers.Layer.GML, {
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loadGML: <span class="reserved">function</span>() {
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<span class="reserved">if</span> (!<span class="reserved">this</span>.loaded) {
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var gml = new OpenLayers.Format.GML();
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try {
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<span class="reserved">this</span>.proj = <span class="reserved">this</span>.projection;
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<span class="reserved">this</span>.addFeatures(gml.read(<span class="reserved">this</span>.mbWidget.renderDoc));
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<span class="reserved">this</span>.loaded = true;
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} catch (e) {
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alert(mbGetMessage(<span class="literal">"documentParseError"</span>),
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new XMLSerializer().serializeToString(<span class="reserved">this</span>.mbWidget.renderDoc));
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}
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}
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},
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<span class="comment">
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// let the layer always be visible, independent of the resolution</span>
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calculateInRange: <span class="reserved">function</span>() {
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<span class="reserved">return</span> true;
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},
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<span class="comment">
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// make destroyFeatures bullet-proof to work with undefined geometries</span>
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destroyFeatures: <span class="reserved">function</span>() {
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var features = <span class="reserved">this</span>.features;
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var featuresToRemove = [];
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var feature;
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<span class="reserved">for</span> (var i=0; i<features.length; i++) {
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feature = features[i];
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feature.mbWidgetConfig = null;
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<span class="reserved">if</span> (!feature.geometry) {
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featuresToRemove.push(feature);
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}
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}
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<span class="reserved">this</span>.removeFeatures(featuresToRemove);
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<span class="reserved">for</span> (var i=0; i<featuresToRemove.length; i++) {
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featuresToRemove[i].destroy();
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}
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OpenLayers.Layer.GML.<span class="reserved">prototype</span>.destroyFeatures.apply(<span class="reserved">this</span>, arguments);
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},
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preFeatureInsert: <span class="reserved">function</span>(feature) {
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<span class="reserved">if</span> (feature.geometry) {
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<span class="comment"> // check if there is a source model linked with this feature</span>
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var sourceNode = <span class="reserved">this</span>.mbWidget.model.doc.selectSingleNode(<span class="literal">"//*[@fid='"</span>+feature.fid+<span class="literal">"']"</span>);
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var sourceModel = null;
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<span class="reserved">if</span> (sourceNode) {
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sourceModel = sourceNode.getAttribute(<span class="literal">'sourceModel'</span>);
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}
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<span class="comment"> // if so, use the config from the source model</span>
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var widgetConfig = null;
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<span class="reserved">if</span> (sourceModel && config.objects[sourceModel].config && config.objects[sourceModel].config[<span class="reserved">this</span>.mbWidget.id]) {
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widgetConfig = config.objects[sourceModel].config[<span class="reserved">this</span>.mbWidget.id];
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} <span class="reserved">else</span> {
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widgetConfig = <span class="reserved">this</span>.mbWidget.config;
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}
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feature.mbWidgetConfig = widgetConfig;
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<span class="reserved">if</span> (!widgetConfig.sourceSRS) {
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<span class="reserved">if</span> (widgetConfig.featureSRS) {
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widgetConfig.sourceSRS = new OpenLayers.Projection(widgetConfig.featureSRS);
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} <span class="reserved">else</span> {
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widgetConfig.sourceSRS = null;
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}
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}
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<span class="comment"> //in the future this will be handled internally to OpenLayers</span>
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<span class="reserved">if</span> (widgetConfig.sourceSRS) {
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<span class="reserved">this</span>.convertPoints(feature.geometry, widgetConfig.sourceSRS);
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}
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}
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},
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drawFeature: <span class="reserved">function</span>(feature, style) {
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<span class="comment"> // set styles before rendering the feature</span>
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var widgetConfig = feature.mbWidgetConfig;
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<span class="reserved">if</span> (widgetConfig) {
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feature.style = null;
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<span class="reserved">if</span> (widgetConfig.defaultStyle && style != <span class="literal">"select"</span>) {
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feature.style = widgetConfig.defaultStyle.createSymbolizer ?
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widgetConfig.defaultStyle.createSymbolizer(feature) :
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widgetConfig.defaultStyle;
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}
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<span class="comment"> // set select styles</span>
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<span class="reserved">if</span> (widgetConfig && widgetConfig.selectStyle) {
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feature.mbSelectStyle = widgetConfig.selectStyle;
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}
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}
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OpenLayers.Layer.GML.<span class="reserved">prototype</span>.drawFeature.apply(<span class="reserved">this</span>, arguments);
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},
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convertPoints: <span class="reserved">function</span>(component, sourceSRS) {
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<span class="reserved">if</span> (component.CLASS_NAME == <span class="literal">'OpenLayers.Geometry.Point'</span>) {
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component.transform(sourceSRS, <span class="reserved">this</span>.proj);
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} <span class="reserved">else</span> {
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<span class="reserved">for</span> (var i=0; i<component.components.length; ++i) {
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<span class="reserved">this</span>.convertPoints(component.components[i], sourceSRS);
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}
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}
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},
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<span class="comment">/**
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* gets a feature from the gmlRendererLayer by GML feature id.
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* <span class="attrib">@param</span> fid GML feature id of the feature
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* <span class="attrib">@return</span> feature OpenLayers feature matching fid
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*/</span>
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getFeatureByFid: <span class="reserved">function</span>(fid) {
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<span class="reserved">if</span> (!<span class="reserved">this</span>.features) {
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<span class="reserved">return</span> null;
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}
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<span class="reserved">for</span> (var i = 0; i < <span class="reserved">this</span>.features.length; ++i) {
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<span class="reserved">if</span> (<span class="reserved">this</span>.features[i].fid == fid) {
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<span class="reserved">return</span> <span class="reserved">this</span>.features[i];
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}
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}
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},
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destroy: <span class="reserved">function</span>() {
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<span class="reserved">this</span>.mbWidget = null;
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OpenLayers.Layer.Vector.<span class="reserved">prototype</span>.destroy.apply(<span class="reserved">this</span>, arguments);
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}
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});
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<span class="comment">/** OpenLayers GML layer which renders the model doc */</span>
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<span class="reserved">this</span>.olLayer = null;
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<span class="comment">/**
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* Style object for default renderer styling of features.
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* This holds one style for each OpenLayers feature class
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*/</span>
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<span class="reserved">this</span>.defaultStyle = null;
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<span class="comment">/**
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* Style object for default renderer styling of features.
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* This holds one style for each OpenLayers feature class
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*/</span>
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<span class="reserved">this</span>.selectStyle = null;
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<span class="comment">/**
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* Features that shall not be drawn
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*/</span>
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<span class="reserved">this</span>.hiddenFeatures = new Array();
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<span class="comment">
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// replacement for deprecated MapContainerBase</span>
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<span class="reserved">this</span>.containerNodeId = <span class="reserved">this</span>.htmlTagId;
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model.containerModel = <span class="reserved">this</span>.targetModel;
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<span class="comment">
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// Set this.stylesheet. This is taken from WidgetBaseXSL.js</span>
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<span class="reserved">if</span> ( !<span class="reserved">this</span>.stylesheet ) {
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var styleNode = widgetNode.selectSingleNode(<span class="literal">"mb:stylesheet"</span>);
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<span class="reserved">if</span> (styleNode) {
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<span class="reserved">this</span>.stylesheet = new XslProcessor(getNodeValue(styleNode), model.namespace);
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<span class="reserved">this</span>.stylesheet.setParameter(<span class="literal">"proxyUrl"</span>, config.proxyUrl);
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}
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}
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<span class="comment">
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// set the hover cursor.</span>
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<span class="reserved">this</span>.hoverCursor = <span class="reserved">this</span>.getProperty(<span class="literal">'mb:hoverCursor'</span>, <span class="literal">'pointer'</span>);
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<span class="reserved">this</span>.paint = <span class="reserved">function</span>(objRef) {
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<span class="reserved">if</span> (objRef.targetModel.map) {
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<span class="comment"> // remove features from layer</span>
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<span class="reserved">if</span> (objRef.olLayer) {
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objRef.model.setParam(<span class="literal">'gmlRendererLayer'</span>, null);
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}
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<span class="comment"> // transform the model using the xsl stylesheet if there is one,</span>
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<span class="comment"> // otherwise just take the model doc.</span>
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objRef.renderDoc = objRef.stylesheet ? objRef.stylesheet.transformNodeToObject(objRef.model.doc) : objRef.model.doc;
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<span class="comment"> // nothing to do here if there is no model doc</span>
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<span class="reserved">if</span> (!objRef.renderDoc) {
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<span class="reserved">return</span>;
|
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}
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<span class="comment">
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|
// keep a reference to the map we created the layer for</span>
|
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objRef.map = objRef.targetModel.map;
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<span class="comment">
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// add own model to array of configurations</span>
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var models = [objRef.model];
|
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<span class="comment"> // get configurations from source models, if any</span>
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<span class="reserved">if</span> (objRef.model.mergeModels) {
|
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<span class="reserved">for</span> (var i=0; i<objRef.model.mergeModels.length; i++) {
|
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models.push(objRef.model.mergeModels[i]);
|
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|
}
|
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}
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<span class="comment"> // store configurations for each source model</span>
|
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<span class="reserved">for</span> (var i = 0; i < models.length; i++) {
|
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var widgetConfig = config.objects[models[i].id].config ? config.objects[models[i].id].config[objRef.id] : null;
|
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|
<span class="reserved">if</span> (!widgetConfig) {
|
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widgetConfig = objRef.config;
|
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|
}
|
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<span class="reserved">if</span> (widgetConfig.sldModelNode) {
|
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|
var sldModel = config.objects[getNodeValue(widgetConfig.sldModelNode)];
|
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|
<span class="reserved">if</span> (sldModel) {
|
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|
sldModel.addListener(<span class="literal">"loadModel"</span>, objRef.paint, objRef);
|
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|
<span class="reserved">if</span> (!sldModel.doc) {
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<span class="reserved">return</span>;
|
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|
}
|
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|
var sldNode = sldModel.getSldNode();
|
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|
<span class="reserved">if</span> (sldModel.sld) {
|
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|
var namedLayer = sldModel.sld.namedLayers[objRef.id].userStyles;
|
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|
<span class="reserved">for</span> (var j=0; j<namedLayer.length; ++j) {
|
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|
namedLayer[j].propertyStyles = namedLayer[j].findPropertyStyles();
|
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|
<span class="reserved">if</span> (namedLayer[j].name == widgetConfig.defaultStyleName) {
|
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|
widgetConfig.defaultStyle = namedLayer[j];
|
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|
}
|
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|
<span class="reserved">if</span> (namedLayer[j].name == widgetConfig.selectStyleName) {
|
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|
widgetConfig.selectStyle = namedLayer[j];
|
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|
}
|
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}
|
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|
<span class="reserved">if</span> (widgetConfig.selectStyle) {
|
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|
widgetConfig.selectStyle.defaultStyle.cursor = objRef.hoverCursor;
|
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|
}
|
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} <span class="reserved">else</span> <span class="reserved">if</span> (sldNode) {
|
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|
widgetConfig.defaultStyle =
|
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|
sld2OlStyle(sldNode.selectSingleNode(<span class="literal">"//*[wmc:Name='"</span>+widgetConfig.defaultStyleName+<span class="literal">"']"</span>));
|
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|
widgetConfig.selectStyle =
|
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sld2OlStyle(sldNode.selectSingleNode(<span class="literal">"//*[wmc:Name='"</span>+widgetConfig.selectStyleName+<span class="literal">"']"</span>));
|
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|
<span class="reserved">if</span> (widgetConfig.selectStyle) {
|
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|
widgetConfig.selectStyle.cursor = objRef.hoverCursor;
|
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}
|
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|
}
|
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|
}
|
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|
}
|
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|
}
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|
362
|
<span class="reserved">if</span> (!objRef.olLayer || !objRef.olLayer.mbWidget) {
|
363
|
objRef.olLayer = new OlLayer(objRef.id, null, {mbWidget: objRef});
|
364
|
objRef.targetModel.map.addLayer(objRef.olLayer);
|
365
|
} <span class="reserved">else</span> {
|
366
|
objRef.olLayer.loaded = false;
|
367
|
objRef.olLayer.destroyFeatures();
|
368
|
objRef.olLayer.loadGML();
|
369
|
}
|
370
|
objRef.removeHiddenFeatures(objRef);
|
371
|
|
372
|
objRef.model.setParam(<span class="literal">'gmlRendererLayer'</span>, objRef.olLayer);
|
373
|
}
|
374
|
<span class="comment"> // We add a refresh listener to the targetModel. This way we</span>
|
375
|
<span class="comment"> // can be sure that the gml renderer is reloaded when the</span>
|
376
|
<span class="comment"> // map is refreshed, and also if the map did not exist yet</span>
|
377
|
<span class="comment"> // when paint was called for the first time.</span>
|
378
|
objRef.targetModel.addListener(<span class="literal">'refresh'</span>, objRef.paint, objRef);
|
379
|
}
|
380
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"refresh"</span>,<span class="reserved">this</span>.paint, <span class="reserved">this</span>);
|
381
|
|
382
|
<span class="comment">/**
|
383
|
* Called when the context's hidden attribute changes.
|
384
|
* <span class="attrib">@param</span> objRef This object.
|
385
|
* <span class="attrib">@param</span> layerName The name of the layer that was toggled.
|
386
|
*/</span>
|
387
|
<span class="reserved">this</span>.hiddenListener=<span class="reserved">function</span>(objRef, layerName){
|
388
|
<span class="comment"> //TBD not yet implemented</span>
|
389
|
alert(<span class="literal">'hide/unhide '</span>+layerName);
|
390
|
}
|
391
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"hidden"</span>,<span class="reserved">this</span>.hiddenListener,<span class="reserved">this</span>);
|
392
|
|
393
|
<span class="comment">/**
|
394
|
* Hides the feature specified by its fid from the map
|
395
|
* <span class="attrib">@param</span> objRef this widget
|
396
|
* <span class="attrib">@param</span> fid feature id of the feature to hide. If it is null,
|
397
|
* the hideFeature param of the model will be used.
|
398
|
*/</span>
|
399
|
<span class="reserved">this</span>.hideFeature = <span class="reserved">function</span>(objRef, fid) {
|
400
|
<span class="reserved">if</span> (!fid) {
|
401
|
fid = objRef.model.getParam(<span class="literal">'hideFeature'</span>);
|
402
|
}
|
403
|
var feature = objRef.olLayer.getFeatureByFid(fid);
|
404
|
<span class="reserved">if</span> (feature) {
|
405
|
objRef.hiddenFeatures.push(fid);
|
406
|
<span class="comment"> // mark the feature as hidden - this will be checked by other widgets</span>
|
407
|
feature.mbHidden = true;
|
408
|
objRef.olLayer.renderer.eraseGeometry(feature.geometry);
|
409
|
}
|
410
|
}
|
411
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"hideFeature"</span>, <span class="reserved">this</span>.hideFeature, <span class="reserved">this</span>);
|
412
|
|
413
|
<span class="comment">/**
|
414
|
* Shows the feature specified by its fid in the map
|
415
|
* <span class="attrib">@param</span> objRef this widget
|
416
|
* <span class="attrib">@param</span> fid feature id of the feature to show. If it is null,
|
417
|
* the showFeature param of the model will be used.
|
418
|
*/</span>
|
419
|
<span class="reserved">this</span>.showFeature = <span class="reserved">function</span>(objRef, fid) {
|
420
|
<span class="reserved">if</span> (!fid) {
|
421
|
fid = objRef.model.getParam(<span class="literal">'showFeature'</span>);
|
422
|
}
|
423
|
var feature = objRef.olLayer.getFeatureByFid(fid);
|
424
|
<span class="reserved">if</span> (feature) {
|
425
|
OpenLayers.Util.removeItem(objRef.hiddenFeatures, fid);
|
426
|
<span class="comment"> // mark the feature as visible - this will be checked by other widgets</span>
|
427
|
feature.mbHidden = false;
|
428
|
objRef.olLayer.drawFeature(feature);
|
429
|
}
|
430
|
}
|
431
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"showFeature"</span>, <span class="reserved">this</span>.showFeature, <span class="reserved">this</span>);
|
432
|
|
433
|
<span class="reserved">this</span>.removeHiddenFeatures = <span class="reserved">function</span>(objRef) {
|
434
|
<span class="reserved">if</span> (objRef.olLayer) {
|
435
|
<span class="comment"> // remove hidden features</span>
|
436
|
var hiddenFeatures = objRef.hiddenFeatures.toString().split(/,/);
|
437
|
objRef.hiddenFeatures = new Array();
|
438
|
<span class="reserved">for</span> (var i=0; i<hiddenFeatures.length; i++) {
|
439
|
<span class="reserved">if</span> (hiddenFeatures[i]) {
|
440
|
objRef.hideFeature(objRef, hiddenFeatures[i]);
|
441
|
}
|
442
|
}
|
443
|
}
|
444
|
}
|
445
|
|
446
|
|
447
|
<span class="comment">/**
|
448
|
* Initializes this widget
|
449
|
* <span class="attrib">@param</span> objRef This object
|
450
|
*/</span>
|
451
|
<span class="reserved">this</span>.init = <span class="reserved">function</span>(objRef) {
|
452
|
var clickWidgetNode = widgetNode.selectSingleNode(<span class="literal">"mb:featureOnClick"</span>);
|
453
|
<span class="reserved">if</span> (clickWidgetNode) {
|
454
|
var clickWidget = config.objects[getNodeValue(clickWidgetNode)];
|
455
|
objRef.model.addListener(<span class="literal">"olFeatureSelect"</span>, clickWidget.onClick, clickWidget);
|
456
|
}
|
457
|
var hoverWidgetNode = widgetNode.selectSingleNode(<span class="literal">"mb:featureOnHover"</span>);
|
458
|
<span class="reserved">if</span> (hoverWidgetNode) {
|
459
|
var hoverWidget = config.objects[getNodeValue(hoverWidgetNode)];
|
460
|
objRef.model.addListener(<span class="literal">"olFeatureHover"</span>, hoverWidget.onMouseover, hoverWidget);
|
461
|
objRef.model.addListener(<span class="literal">"olFeatureOut"</span>, hoverWidget.onMouseout, hoverWidget);
|
462
|
}
|
463
|
objRef.targetModel.addListener(<span class="literal">"aoi"</span>, objRef.removeHiddenFeatures, objRef);
|
464
|
}
|
465
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"init"</span>, <span class="reserved">this</span>.init, <span class="reserved">this</span>);
|
466
|
|
467
|
<span class="reserved">this</span>.model.removeListener(<span class="literal">"newModel"</span>, <span class="reserved">this</span>.clearWidget, <span class="reserved">this</span>);
|
468
|
<span class="reserved">this</span>.clearWidget = <span class="reserved">function</span>(objRef) {
|
469
|
<span class="reserved">if</span> (objRef.olLayer) {
|
470
|
objRef.olLayer.loaded = false;
|
471
|
<span class="reserved">for</span> (var i=0; i<objRef.olLayer.map.controls.length; i++) {
|
472
|
<span class="reserved">if</span> (objRef.olLayer.map.controls[i].layer == objRef.olLayer) {
|
473
|
objRef.olLayer.map.controls[i].destroy();
|
474
|
}
|
475
|
}
|
476
|
objRef.olLayer.destroy();
|
477
|
objRef.olLayer = null;
|
478
|
}
|
479
|
}
|
480
|
<span class="reserved">this</span>.model.addListener(<span class="literal">"newModel"</span>, <span class="reserved">this</span>.clearWidget, <span class="reserved">this</span>);
|
481
|
}
|
482
|
</pre>
|
483
|
<hr>
|
484
|
|
485
|
|
486
|
|
487
|
<!-- ========== START OF NAVBAR ========== -->
|
488
|
<a name="navbar_top"><!-- --></a>
|
489
|
<table border="0" width="100%" cellpadding="1" cellspacing="0">
|
490
|
<tr>
|
491
|
<td colspan=2 bgcolor="#EEEEFF" class="NavBarCell1">
|
492
|
<a name="navbar_top_firstrow"><!-- --></a>
|
493
|
<table border="0" cellpadding="0" cellspacing="3">
|
494
|
<tr align="center" valign="top">
|
495
|
|
496
|
|
497
|
<td bgcolor="#EEEEFF" class="NavBarCell1"> <a href="overview-summary.html"><font class="NavBarFont1"><b>Overview</b></font></a> </td>
|
498
|
<td bgcolor="#FFFFFF" class="NavBarCell1Rev"> <font class="NavBarFont1Rev"><b>File</b></font> </td>
|
499
|
|
500
|
|
501
|
<td bgcolor="#FFFFFF" class="NavBarCell1"> <font class="NavBarFont1">Class</font> </td>
|
502
|
<td bgcolor="#EEEEFF" class="NavBarCell1"> <a href="overview-tree.html"><font class="NavBarFont1"><b>Tree</b></font></a> </td>
|
503
|
<td bgcolor="#EEEEFF" class="NavBarCell1"> <a href="index-all.html"--><font class="NavBarFont1"><b>Index</b></font></a> </td>
|
504
|
<td bgcolor="#EEEEFF" class="NavBarCell1"> <a href="help-doc.html"><font class="NavBarFont1"><b>Help</b></font></a> </td>
|
505
|
</tr>
|
506
|
</table>
|
507
|
</td>
|
508
|
<td bgcolor="#EEEEFF" align="right" valign="top"><em>
|
509
|
<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
|
510
|
</td>
|
511
|
</tr>
|
512
|
|
513
|
<tr>
|
514
|
<td bgcolor="white" class="NavBarCell2"><font size="-2">
|
515
|
PREV
|
516
|
NEXT</font></td>
|
517
|
<td bgcolor="white" class="NavBarCell2"><font size="-2">
|
518
|
<a href="index.html" target="_top"><b>FRAMES</b></a>
|
519
|
<a href="overview-summary.html" target="_top"><b>NO FRAMES</b></a>
|
520
|
|
521
|
<script>
|
522
|
<!--
|
523
|
if(window==top) {
|
524
|
document.writeln('<A HREF="allclasses-noframe.html" TARGET=""><B>All Classes</B></A>');
|
525
|
}
|
526
|
//-->
|
527
|
</script>
|
528
|
<noscript>
|
529
|
<a href="allclasses-noframe.html" target=""><b>All Classes</b></a>
|
530
|
</noscript>
|
531
|
</font></td>
|
532
|
</tr>
|
533
|
</table>
|
534
|
<!-- =========== END OF NAVBAR =========== -->
|
535
|
|
536
|
<hr>
|
537
|
<font size="-1">
|
538
|
|
539
|
</font>
|
540
|
<div class="jsdoc_ctime">Documentation generated by <a href="http://jsdoc.sourceforge.net/" target="_parent">JSDoc</a> on Sun Apr 27 20:30:54 2008</div>
|
541
|
</body>
|
542
|
</html>
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