esri_task_printing.js

esri的ArcGIS Server超级学习模板程序（for java）

      htmlStr += "</td></tr>";
      htmlStr += "</table>";
      htmlStr += "<span style='font-family: Arial,Helvetica,sans-serif; font-size: 10px; z-index:99'>"+printMapObj.getCopyrightText()+"</span>";
    }
    return htmlStr;
  }

 /**
  * Generates the legend patch in a column row.
  * @param {Object} level
  * @param {Object} label
  * @param {Object} imageUrl
  */
  function renderLegendPatchInHTML(level, label, imageUrl ) {
    var htmlStr = "";
    if (level == 0) {
      htmlStr += "<td nowrap='' class='esriTocLabelDataFrame'>";
    } else if (level == 1) {
      htmlStr += "<td nowrap='' class='esriTocLabelLayer'>";
    } else if (level == 2 && imageUrl.length < 2 ) {
      htmlStr += "<td nowrap='' class='esriTocLabelField'>";
    } else {
      htmlStr += "<td nowrap='' class='esriTocLabel'>";
    }
    var indents = 5+5*level;
    htmlStr += "<img src='images/pixel.gif' style='width: "+indents+"px; height: 0px;'/>" ;
    if (imageUrl.length >1) {
      htmlStr += "<img src='images/pixel.gif' style='margin: 0px 4px 0px 0px; padding: 0px 4px 0px 0px; width: 9px; height: 0px;'/>";
      htmlStr += "<img src="+imageUrl+" style='margin: 0px 4px 0px 0px; padding: 0px 4px 0px 0px;'/>";
    }
    htmlStr += "<span>"+label+"</span>";
    htmlStr += "</td>";
    return htmlStr;
  }

 /**
  * The class represents a printing map object.
  * It wraps all information needed to generate a Printing page.
  *
  * @param {Object} xmlObj
  */
  PrintMap = function(xmlObj) {
    this.taskId = getNodeValue(xmlObj, "task-id");
    this.mapTitle = getNodeValue(xmlObj, "map-title");
    this.mapWidth = getNodeValue(xmlObj, "map-width");
    this.mapHeight = getNodeValue(xmlObj, "map-height");
    this.mapUrl = getNodeValue(xmlObj, "map-url");
    this.isPrintResultOnly = getNodeValue(xmlObj, "print-resultOnly");
    this.isPrintLegend = getNodeValue(xmlObj, "print-legend");
    this.copyrightText = getNodeValue(xmlObj, "map-copyright");
    this.legendColumns = parseInt(getNodeValue(xmlObj, "legend-columns"));

    this.legendNodes =  getLegendNodeArray(xmlObj);
    this.printResults = getThePrintResults(xmlObj);

   /*
    * Returns the node value
    */
    function getNodeValue(xml, tagName){
      var node = xml.getElementsByTagName(tagName);
      if (node !=null && node.length >0 && node.item(0).childNodes.length > 0) {
        return node.item(0).firstChild.nodeValue;
      }
      return "";
    }

   /*
    * Return an array of legend nodes.
    */
    function getLegendNodeArray(xml) {
      var legendNodes = xml.getElementsByTagName("node");
      var nodeArray = new Array();
      if (legendNodes.length > 0) {
        for(i=0; i<legendNodes.length; i++) {
          var legendNode = legendNodes.item(i);
          if (legendNode.hasChildNodes()) {
            var level = 0;
            var key = ' ';
            var label = ' ';
            var imageUrl = ' ';
            //extracts the level, patchUrl, and labelText values
            var legChildNodes = legendNode.childNodes;
            for (j=0; j< legChildNodes.length; j++) {
              var lcNode = legChildNodes.item(j);
              if (lcNode.nodeName == "level") {
                level = parseInt(lcNode.firstChild.nodeValue);
              } else if (lcNode.nodeName == "key") {
                key = lcNode.firstChild.nodeValue;
              } else if (lcNode.nodeName == "content") {
                if (lcNode.childNodes.length == 1) {
                  var cccnode = lcNode.childNodes.item(0);
                  if (cccnode.nodeName == "text" && cccnode.childNodes.length >0  ) {
                    label = cccnode.firstChild.nodeValue;
                  } else if (cccnode.nodeName == "image-url"){
                    imageUrl = cccnode.firstChild.nodeValue;
                  }
                }
                if (lcNode.childNodes.length == 2){
                  if (lcNode.childNodes.item(0).hasChildNodes()) {
                    label = lcNode.childNodes.item(0).firstChild.nodeValue;
                  }
                  if (lcNode.childNodes.item(1).hasChildNodes()) {
                    imageUrl = lcNode.childNodes.item(1).firstChild.nodeValue;
                  }
                }
              }
            } // end of for
          nodeArray.push(new LegendNode(level, key, label, imageUrl));
          }
        }
      } //if (legendNodes.length > 0) {
      return nodeArray;
    }

   /*
    * Returns the PrintResult
    */
    function getThePrintResults(xmlObj) {
      var print_Results = new Array();
      var printResultNodes = xmlObj.getElementsByTagName("print-result");
      if (printResultNodes.length > 0) {
        for(i=0; i<printResultNodes.length; i++) {
          var prname = printResultNodes[i].getAttribute("name");
          var printResult = new PrintResult(prname);
          var layers = printResultNodes[i].getElementsByTagName("layer");
          for(j=0; j<layers.length; j++) {
            var n = layers[j].getAttribute("name");
            var c = layers[j].getAttribute("results");
            var layerQueryResult = new LayerQueryResult(n, c);
            var details = layers[j].getElementsByTagName("details");
            for (var m=0; m<details.length; m++) {
              var detail = details[m].getElementsByTagName("detail");
              var keys = new Array();
              var vals = new Array();
              //generates the data
              for (var n=0; n<detail.length; n++) {
                keys.push(detail[n].getAttribute("key"));
                vals.push(detail[n].getAttribute("value"));
              }
              layerQueryResult.addDetail(keys, vals);
            } //end of for
            printResult.addLayerQueryResult(layerQueryResult);
          }
          print_Results.push(printResult);
        } //end of for
      } // end of if
      return print_Results;
    }
  }

  PrintMap.prototype.getTaskId = function() {
    return this.taskId;
  }

  PrintMap.prototype.getMapTitle = function() {
    return this.mapTitle;
  }

  PrintMap.prototype.getMapWidth = function() {
    return this.mapWidth;
  }

  PrintMap.prototype.getMapHeight = function() {
    return this.mapHeight;
  }

  PrintMap.prototype.getMapUrl = function() {
    return this.mapUrl;
  }

  PrintMap.prototype.getIsPrintResultOnly = function() {
   return this.isPrintResultOnly;
  }

  PrintMap.prototype.getIsPrintLegend = function() {
    return this.isPrintLegend;
  }

  PrintMap.prototype.getCopyrightText = function() {
    return this.copyrightText;
  }

  PrintMap.prototype.getLegendColumns = function() {
    return this.legendColumns;
  }

  PrintMap.prototype.getLegendNodes = function() {
    return this.legendNodes;
  }

  PrintMap.prototype.getPrintResults = function() {
    return this.printResults;
  }
  /* ===== End of the PrintMap class ===== */


 /**
  * A Legend Node class. It stores all properties to represent a legend.
  *
  * @param {Object} level
  * @param {Object} key
  * @param {Object} label
  * @param {Object} imageUrl
  */
  LegendNode = function(level, key, label, imageUrl) {
    this.level = (level != undefined) ? level : 0;
    this.key = (key != undefined) ? key : "";
    this.label = (label != undefined) ? label : "";
    this.imageUrl = (imageUrl != undefined) ? imageUrl : "";
  }

  LegendNode.prototype.getLevel = function() {
    return this.level;
  }

  LegendNode.prototype.getKey = function() {
    return this.key;
  }

  LegendNode.prototype.getLabel = function() {
    return this.label;
  }

  LegendNode.prototype.getImageUrl = function() {
    return this.imageUrl;
  }
  /* ===== End of the legend node class =====  */

  /**
  * The class represents the print-result tag data object.
  * @param {Object} name
  */
  PrintResult = function(name) {
    this.name   = (name != undefined) ? name : "";
    this.LayerQueryResults   = new Array();
  }

  PrintResult.prototype.getName = function() {
    return this.name;
  }

  PrintResult.prototype.setName = function(na) {
    this.name = (na != undefined) ? na : "";;
  }
  PrintResult.prototype.getLayerQueryResults = function() {
    return this.LayerQueryResults;
  }

  PrintResult.prototype.addLayerQueryResult = function(layerQR) {
    this.LayerQueryResults.push(layerQR);
  }

  /**
  * The class represents a query result data object.
  * The object wraps the XML portions,
  * For example,
  *  <layer name="usa" results="3">
  *    <details>
  *      <detail key="name" value="riverside" />
  *    </details>
  *  </layer>
  * @param {Object} name
  */
  LayerQueryResult = function(name, count) {
    this.name   = (name != undefined) ? name : "";
    this.count   = (count != undefined) ? count : 0;
    this.keysArray   = new Array();
    this.valuesArray = new Array();
  }

  LayerQueryResult.prototype.getName = function() {
    return this.name;
  }

  LayerQueryResult.prototype.getCount = function() {
    return this.count;
  }

  LayerQueryResult.prototype.getKeys = function() {
    return this.keysArray;
  }

  LayerQueryResult.prototype.getValues = function() {
    return this.valuesArray;
  }

  LayerQueryResult.prototype.addDetail = function(keys, vals) {
    this.keysArray.push(keys);
    this.valuesArray.push(vals);
  }