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/*
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Author: Mike Adair mike.adairATccrs.nrcan.gc.ca
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Author: Cameron Shorter cameronATshorter.net
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id$
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*/
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// Ensure this object's dependancies are loaded.
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mapbuilder.loadScript(baseDir+"/widget/GmlRenderer.js");
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/**
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* Render an Area Of Interest (AOI) Box over a map.
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* This widget extends GmlRenderer and uses GmlRenderer.xsl to build the HTML box.
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* @constructor
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* @base GmlRenderer
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* @param widgetNode The widget's XML object node from the configuration document.
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* @param model The model object that this widget belongs to.
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*/
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function AoiBox2(widgetNode, model) {
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// Inherit the GmlRenderer functions and parameters
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var base = new GmlRenderer(widgetNode, model);
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for (sProperty in base) {
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this[sProperty] = base[sProperty];
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}
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/** Use the GmlRenderer stylesheet. */
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this.stylesheet=new XslProcessor(baseDir+"/widget/GmlRenderer.xsl");
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/**
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* Build Gml Envelope from AOI and set XSL params.
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* @param objRef Pointer to this object.
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*/
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this.prePaint = function(objRef) {
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objRef.stylesheet.setParameter("width", objRef.targetModel.getWindowWidth() );
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objRef.stylesheet.setParameter("height", objRef.targetModel.getWindowHeight() );
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bBox=objRef.targetModel.getBoundingBox();
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objRef.stylesheet.setParameter("bBoxMinX", bBox[0]);
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objRef.stylesheet.setParameter("bBoxMinY", bBox[1]);
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objRef.stylesheet.setParameter("bBoxMaxX", bBox[2]);
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objRef.stylesheet.setParameter("bBoxMaxY", bBox[3]);
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objRef.stylesheet.setParameter("color", "#FF0000");
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objRef.stylesheet.setParameter("crossSize", "15");
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objRef.stylesheet.setParameter("lineWidth", "1");
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aoiBox = objRef.model.getParam("aoi");
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gml='<?xml version="1.0" encoding="utf-8" standalone="no"?>';
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if (aoiBox) {
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ul = objRef.model.extent.getPL(aoiBox[0]);
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lr = objRef.model.extent.getPL(aoiBox[1]);
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gml=gml+'<Aoi version="1.0.0" xmlns:gml="http://www.opengis.net/gml">';
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gml=gml+'<gml:Envelope>';
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gml=gml+'<gml:coord>';
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gml=gml+'<gml:X>'+aoiBox[0][0]+'</gml:X>';
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gml=gml+'<gml:Y>'+aoiBox[0][1]+'</gml:Y>';
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gml=gml+'</gml:coord>';
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gml=gml+'<gml:coord>';
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gml=gml+'<gml:X>'+aoiBox[1][0]+'</gml:X>';
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gml=gml+'<gml:Y>'+aoiBox[1][1]+'</gml:Y>';
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gml=gml+'</gml:coord>';
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gml=gml+'</gml:Envelope>';
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gml=gml+'</Aoi>';
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} else {
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gml=gml+"<null/>";
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}
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objRef.resultDoc = Sarissa.getDomDocument();
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objRef.resultDoc.loadXML(gml);
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}
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/**
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* Called when the AoiChanged.
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* @param objRef This object.
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*/
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this.aoiListener = function(objRef) {
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objRef.paint(objRef);
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}
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model.addListener("aoi",this.aoiListener, this);
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}
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