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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>EditButtonBase.js</h2>
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<h4>Summary</h4>
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No overview generated for 'EditButtonBase.js'<BR/><BR/>
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<b>Class Summary</b>
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</tr>
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<tr bgcolor="white" class="TableRowColor">
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<td width="15%"><b><a href="EditButtonBase.html">EditButtonBase</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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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: EditButtonBase.js 3879 2008-02-27 14:20:29Z gjvoosten $
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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/ButtonBase.js"</span>);
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<span class="comment">/**
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* Base class for tools which update GML by clicking on the mapPane.
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* <span class="attrib">@constructor</span>
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* <span class="attrib">@base</span> ButtonBase
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* <span class="attrib">@author</span> Cameron Shorter cameronATshorter.net
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* <span class="attrib">@param</span> widgetNode The node from the Config XML file.
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* <span class="attrib">@param</span> model The ButtonBar widget.
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*/</span>
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<span class="reserved">function</span> EditButtonBase(widgetNode, model) {
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<span class="comment"> // Extend ButtonBase</span>
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ButtonBase.apply(<span class="reserved">this</span>, new Array(widgetNode, model));
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<span class="comment">
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// override default cursor by user</span>
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<span class="comment"> // cursor can be changed by specifying a new cursor in config file</span>
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<span class="reserved">this</span>.cursor = <span class="literal">"crosshair"</span>;
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<span class="reserved">this</span>.trm=<span class="reserved">this</span>.getProperty(<span class="literal">"mb:transactionResponseModel"</span>);
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<span class="comment">/** Empty GML to load when this tool is selected. */</span>
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<span class="reserved">this</span>.defaultModelUrl=<span class="reserved">this</span>.getProperty(<span class="literal">"mb:defaultModelUrl"</span>);
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<span class="comment">/** Reference to GML node to update when a feature is added. */</span>
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<span class="reserved">this</span>.featureXpath=<span class="reserved">this</span>.getProperty(<span class="literal">"mb:featureXpath"</span>);
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<span class="comment">/** Should a new empty feature be appended after creating one? */</span>
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<span class="reserved">this</span>.appendOnEdit = Mapbuilder.parseBoolean(<span class="reserved">this</span>.getProperty(<span class="literal">"mb:appendOnEdit"</span>, true));
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<span class="comment">/**
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* OpenLayers DrawFeature control.
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* <span class="attrib">@param</span> objRef reference to this object.
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* <span class="attrib">@return</span> {OpenLayers.Control} class of the OL control.
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*/</span>
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<span class="reserved">this</span>.createControl = <span class="reserved">function</span>(objRef) {
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<span class="reserved">return</span> OpenLayers.Control.DrawFeature;
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}
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<span class="comment">/**
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* If tool is selected and the Edit Tool has changed (eg, changed from
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* LineEdit to PointEdit) then load new default feature.
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* This function is called when a tool is selected or deselected.
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* <span class="attrib">@param</span> objRef Pointer to this object.
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* <span class="attrib">@param</span> selected True when selected.
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*/</span>
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<span class="reserved">this</span>.doSelect = <span class="reserved">function</span>(objRef, selected) {
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<span class="reserved">if</span> (objRef.control.active) {
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<span class="comment"> // Model that will be populated with the WFS response.</span>
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<span class="reserved">if</span> (objRef.trm && !objRef.transactionResponseModel){
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objRef.transactionResponseModel=window.config.objects[objRef.trm];
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}
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<span class="comment"> // Remove the transactionResponseModel (and result of last transaction)</span>
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<span class="comment"> // when a transaction button is deselected</span>
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<span class="reserved">if</span>(!selected && objRef.transactionResponseModel){
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objRef.transactionResponseModel.setModel(objRef.transactionResponseModel,null);
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}
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config.loadModel(objRef.targetModel.id, objRef.defaultModelUrl);
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}
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}
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<span class="comment">/**
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* start a new editing session
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* <span class="attrib">@param</span> objRef reference to this widget
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*/</span>
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<span class="reserved">this</span>.newSession = <span class="reserved">function</span>(objRef) {
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objRef.modified = false;
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}
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<span class="comment">/**
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* This is called by the OL onFeatureInsert handler. It will
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* call the superclass's setFeature() method to handle the
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* created feature.
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* <span class="attrib">@param</span> feature OpenLayers feature
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*/</span>
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<span class="reserved">this</span>.handleFeatureInsert = <span class="reserved">function</span>(feature) {
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<span class="comment"> // use the objRef reference stored by setEditingLayer()</span>
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var objRef = feature.layer.mbButton;
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objRef.feature = OpenLayers.Util.extend({}, feature);
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objRef.geometry = OpenLayers.Util.extend({}, feature.geometry);
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var previousFeatureNode = objRef.targetModel.doc.selectSingleNode(<span class="literal">"/*/*"</span>).cloneNode(true);
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<span class="comment">
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// add a new empty node if this is not the first feature</span>
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<span class="reserved">if</span> (objRef.modified && objRef.appendOnEdit) {
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objRef.targetModel.doc.selectSingleNode(<span class="literal">"/*"</span>).appendChild(previousFeatureNode);
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}
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objRef.setFeature(objRef);
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objRef.modified = true;
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<span class="comment">
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// destroy the feature in OL, because we do not use</span>
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<span class="comment"> // the OL vector layer for displaying the feature</span>
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feature.mbSelectStyle = null;
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feature.destroy();
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}
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<span class="comment">/**
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* Set editing layer and register for editing events in OL,
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* called after model loads.
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.setEditingLayer = <span class="reserved">function</span>(objRef) {
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<span class="reserved">if</span> (!objRef.targetContext.featureLayers[objRef.id]) {
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objRef.featureLayer = new OpenLayers.Layer.Vector(objRef.id);
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<span class="comment"> // layer should always be visible, independent of the resolution</span>
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objRef.featureLayer.calculateInRange = <span class="reserved">function</span>() {<span class="reserved">return</span> true;};
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<span class="comment"> // set objRef as mbButton attribute of the OL featureLayer,</span>
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<span class="comment"> // because we otherwise don't have it available in</span>
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<span class="comment"> // handleFeatureInsert()</span>
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objRef.featureLayer.mbButton = objRef;
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objRef.targetContext.featureLayers[objRef.id] = objRef.featureLayer;
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<span class="comment"> // register OL event handler</span>
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objRef.featureLayer.onFeatureInsert = objRef.handleFeatureInsert;
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}
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}
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<span class="comment">/**
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* Add a geometry to the enclosing GML model.
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.setFeature = <span class="reserved">function</span>(objRef) {
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<span class="reserved">if</span> (!objRef.enabled) {
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<span class="reserved">return</span>;
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}
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var gml = new OpenLayers.Format.GML().write([objRef.feature]);
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var gmlDoc = Sarissa.getDomDocument();
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gmlDoc = (new DOMParser()).parseFromString(gml, <span class="literal">"text/xml"</span>);
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<span class="reserved">if</span> (objRef.targetModel.namespace) {
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Sarissa.setXpathNamespaces(gmlDoc, objRef.targetModel.namespace);
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}
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var insertPoint = objRef.featureXpath.lastIndexOf(<span class="literal">"/"</span>)+1;
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var insertXpath = objRef.featureXpath.substring(insertPoint);
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var insertNode = gmlDoc.selectSingleNode(<span class="literal">"//"</span>+insertXpath);
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<span class="reserved">if</span> (!insertNode) {
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insertNode = gmlDoc.selectSingleNode(<span class="literal">"//gml:featureMember/*/*"</span>);
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}
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var targetNode = objRef.targetModel.doc.selectSingleNode(objRef.featureXpath);
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<span class="reserved">if</span> (targetNode.childNodes.length > 0) {
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targetNode.removeChild(targetNode.firstChild);
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}
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try {
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Sarissa.copyChildNodes(insertNode, targetNode);
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} catch(e) {
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alert(mbGetMessage(<span class="literal">"invalidFeatureXpathEditLine"</span>, objRef.featureXpath));
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}
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objRef.targetModel.setParam(<span class="literal">"refresh"</span>);
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}
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<span class="comment">/**
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* Create the array that will hold all OL feature layers
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* for editing buttons. Also register event handler to
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* create feature layers when the OL map is available.
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.initButton = <span class="reserved">function</span>(objRef) {
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<span class="comment"> // initialize feature layers for the context.</span>
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<span class="comment"> // each editing button gets its own feature layer,</span>
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<span class="comment"> // which is not used for displaying the features,</span>
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<span class="comment"> // because the transaction response model has its</span>
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<span class="comment"> // own feature renderer.</span>
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<span class="reserved">if</span> (!objRef.targetContext.featureLayers) {
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<span class="comment"> // this array in the context will hold all</span>
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<span class="comment"> // featureLayers used by editButton widgets</span>
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objRef.targetContext.featureLayers = new Array();
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}
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<span class="comment">
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// feature layers will be created when the OL map is available</span>
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objRef.targetContext.addFirstListener(<span class="literal">"refresh"</span>,objRef.setEditingLayer, objRef);
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objRef.targetModel.addListener(<span class="literal">"loadModel"</span>, objRef.newSession, objRef);
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}
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<span class="reserved">this</span>.model.addListener(<span class="literal">"init"</span>,<span class="reserved">this</span>.initButton, <span class="reserved">this</span>);
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}
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</pre>
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<td bgcolor="#EEEEFF" align="right" valign="top"><em>
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<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
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<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>
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