谷歌地图添加文本标注代码,Js代码库,德仔网

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【Js】谷歌地图添加文本标注
作者:imcto / 发布于2017/10/25/ 282
谷歌地图添加文本标注
<!DOCTYPE html>
<html>
<head>
 <meta http-equiv="content-type" content="text/html; charset=utf-8" />
 <title>MarkerWithLabel Example</title>
 <style type="text/css">
   .labels {
     color: red;
     background-color: white;
     font-family: "Lucida Grande", "Arial", sans-serif;
     font-size: 10px;
     font-weight: bold;
     text-align: center;
     width: 40px;
     border: 2px solid black;
     white-space: nowrap;
   }
 </style>
 <script type="text/javascript"
src="http://ditu.google.cn/maps/api/js?v=3&key=AIzaSyCfVopXQRLLJV3hEOJCpuxFjsCLrqJZE1Q&sensor=true"></script>
 <script type="text/javascript" src="markerwithlabel.js"></script>
 <script type="text/javascript">
   function initMap() {
     var latLng = new google.maps.LatLng(49.47805, -123.84716);
     var homeLatLng = new google.maps.LatLng(49.47805, -123.84716);


     var map = new google.maps.Map(document.getElementById('map_canvas'), {
       zoom: 12,
       center: latLng,
       mapTypeId: google.maps.MapTypeId.ROADMAP
     });


     var marker1 = new MarkerWithLabel({
       position: homeLatLng,
       draggable: true,
       raiseOnDrag: true,
       map: map,
       labelContent: "$425K",
       labelAnchor: new google.maps.Point(22, 0),
       labelClass: "labels", // the CSS class for the label
       labelStyle: {opacity: 0.75}
     });


     var marker2 = new MarkerWithLabel({
       position: new google.maps.LatLng(49.475, -123.84),
       draggable: true,
       raiseOnDrag: true,
       map: map,
       labelContent: "$395K",
       labelAnchor: new google.maps.Point(22, 0),
       labelClass: "labels", // the CSS class for the label
       labelStyle: {opacity: 1.0}
     });


     var iw1 = new google.maps.InfoWindow({
       content: "Home For Sale"
     });
     var iw2 = new google.maps.InfoWindow({
       content: "Another Home For Sale"
     });
     google.maps.event.addListener(marker1, "click", function (e) { iw1.open(map, this); });
     google.maps.event.addListener(marker2, "click", function (e) { iw2.open(map, this); });
   }
 </script>
</head>
<body onload="initMap()">
A basic example of markers with labels. Note that an information window appears whether you
click the marker portion or the label portion of the MarkerWithLabel. The two markers shown here
are both draggable so you can easily verify that markers and labels overlap as expected.
 <div id="map_canvas" style="height: 400px; width: 100%;"></div>
 <div id="log"></div>
</body>
</html>

<!--   ************************* 结束*********************   -->

markerwithlabel.js 文件内容如下：
/**
 * @name MarkerWithLabel for V3
 * @version 1.1.10 [April 8, 2014]
 * @author Gary Little (inspired by code from Marc Ridey of Google).
 * @copyright Copyright 2012 Gary Little [gary at luxcentral.com]
 * @fileoverview MarkerWithLabel extends the Google Maps JavaScript API V3
 *  google.maps.Marker class.
 *  
 *  MarkerWithLabel allows you to define markers with associated labels. As you would expect,
 *  if the marker is draggable, so too will be the label. In addition, a marker with a label
 *  responds to all mouse events in the same manner as a regular marker. It also fires mouse
 *  events and "property changed" events just as a regular marker would. Version 1.1 adds
 *  support for the raiseOnDrag feature introduced in API V3.3.
 *  
 *  If you drag a marker by its label, you can cancel the drag and return the marker to its
 *  original position by pressing the Esc key. This doesn't work if you drag the marker
 *  itself because this feature is not (yet) supported in the google.maps.Marker class.
 */


/*!
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


/*jslint browser:true */
/*global document,google */


/**
 * @param {Function} childCtor Child class.
 * @param {Function} parentCtor Parent class.
 * @private
 */
function inherits(childCtor, parentCtor) {
  /* @constructor */
  function tempCtor() {}
  tempCtor.prototype = parentCtor.prototype;
  childCtor.superClass_ = parentCtor.prototype;
  childCtor.prototype = new tempCtor();
  /* @override */
  childCtor.prototype.constructor = childCtor;
}


/**
 * This constructor creates a label and associates it with a marker.
 * It is for the private use of the MarkerWithLabel class.
 * @constructor
 * @param {Marker} marker The marker with which the label is to be associated.
 * @param {string} crossURL The URL of the cross image =.
 * @param {string} handCursor The URL of the hand cursor.
 * @private
 */
function MarkerLabel_(marker, crossURL, handCursorURL) {
  this.marker_ = marker;
  this.handCursorURL_ = marker.handCursorURL;


  this.labelDiv_ = document.createElement("div");
  this.labelDiv_.style.cssText = "position: absolute; overflow: hidden;";


  // Set up the DIV for handling mouse events in the label. This DIV forms a transparent veil
  // in the "overlayMouseTarget" pane, a veil that covers just the label. This is done so that
  // events can be captured even if the label is in the shadow of a google.maps.InfoWindow.
  // Code is included here to ensure the veil is always exactly the same size as the label.
  this.eventDiv_ = document.createElement("div");
  this.eventDiv_.style.cssText = this.labelDiv_.style.cssText;


  // This is needed for proper behavior on MSIE:
  this.eventDiv_.setAttribute("onselectstart", "return false;");
  this.eventDiv_.setAttribute("ondragstart", "return false;");


  // Get the DIV for the "X" to be displayed when the marker is raised.
  this.crossDiv_ = MarkerLabel_.getSharedCross(crossURL);
}


inherits(MarkerLabel_, google.maps.OverlayView);


/**
 * Returns the DIV for the cross used when dragging a marker when the
 * raiseOnDrag parameter set to true. One cross is shared with all markers.
 * @param {string} crossURL The URL of the cross image =.
 * @private
 */
MarkerLabel_.getSharedCross = function (crossURL) {
  var div;
  if (typeof MarkerLabel_.getSharedCross.crossDiv === "undefined") {
    div = document.createElement("img");
    div.style.cssText = "position: absolute; z-index: 1000002; display: none;";
    // Hopefully Google never changes the standard "X" attributes:
    div.style.marginLeft = "-8px";
    div.style.marginTop = "-9px";
    div.src = crossURL;
    MarkerLabel_.getSharedCross.crossDiv = div;
  }
  return MarkerLabel_.getSharedCross.crossDiv;
};


/**
 * Adds the DIV representing the label to the DOM. This method is called
 * automatically when the marker's setMap method is called.
 * @private
 */
MarkerLabel_.prototype.onAdd = function () {
  var me = this;
  var cMouseIsDown = false;
  var cDraggingLabel = false;
  var cSavedZIndex;
  var cLatOffset, cLngOffset;
  var cIgnoreClick;
  var cRaiseEnabled;
  var cStartPosition;
  var cStartCenter;
  // Constants:
  var cRaiseOffset = 20;
  var cDraggingCursor = "url(" + this.handCursorURL_ + ")";


  // Stops all processing of an event.
  //
  var cAbortEvent = function (e) {
    if (e.preventDefault) {
      e.preventDefault();
    }
    e.cancelBubble = true;
    if (e.stopPropagation) {
      e.stopPropagation();
    }
  };


  var cStopBounce = function () {
    me.marker_.setAnimation(null);
  };


  this.getPanes().overlayImage.appendChild(this.labelDiv_);
  this.getPanes().overlayMouseTarget.appendChild(this.eventDiv_);
  // One cross is shared with all markers, so only add it once:
  if (typeof MarkerLabel_.getSharedCross.processed === "undefined") {
    this.getPanes().overlayImage.appendChild(this.crossDiv_);
    MarkerLabel_.getSharedCross.processed = true;
  }


  this.listeners_ = [
    google.maps.event.addDomListener(this.eventDiv_, "mouseover", function (e) {
      if (me.marker_.getDraggable() || me.marker_.getClickable()) {
        this.style.cursor = "pointer";
        google.maps.event.trigger(me.marker_, "mouseover", e);
      }
    }),
    google.maps.event.addDomListener(this.eventDiv_, "mouseout", function (e) {
      if ((me.marker_.getDraggable() || me.marker_.getClickable()) && !cDraggingLabel) {
        this.style.cursor = me.marker_.getCursor();
        google.maps.event.trigger(me.marker_, "mouseout", e);
      }
    }),
    google.maps.event.addDomListener(this.eventDiv_, "mousedown", function (e) {
      cDraggingLabel = false;
      if (me.marker_.getDraggable()) {
        cMouseIsDown = true;
        this.style.cursor = cDraggingCursor;
      }
      if (me.marker_.getDraggable() || me.marker_.getClickable()) {
        google.maps.event.trigger(me.marker_, "mousedown", e);
        cAbortEvent(e); // Prevent map pan when starting a drag on a label
      }
    }),
    google.maps.event.addDomListener(document, "mouseup", function (mEvent) {
      var position;
      if (cMouseIsDown) {
        cMouseIsDown = false;
        me.eventDiv_.style.cursor = "pointer";
        google.maps.event.trigger(me.marker_, "mouseup", mEvent);
      }
      if (cDraggingLabel) {
        if (cRaiseEnabled) { // Lower the marker & label
          position = me.getProjection().fromLatLngToDivPixel(me.marker_.getPosition());
          position.y += cRaiseOffset;
          me.marker_.setPosition(me.getProjection().fromDivPixelToLatLng(position));
          // This is not the same bouncing style as when the marker portion is dragged,
          // but it will have to do:
          try { // Will fail if running Google Maps API earlier than V3.3
            me.marker_.setAnimation(google.maps.Animation.BOUNCE);
            setTimeout(cStopBounce, 1406);
          } catch (e) {}
        }
        me.crossDiv_.style.display = "none";
        me.marker_.setZIndex(cSavedZIndex);
        cIgnoreClick = true; // Set flag to ignore the click event reported after a label drag
        cDraggingLabel = false;
        mEvent.latLng = me.marker_.getPosition();
        google.maps.event.trigger(me.marker_, "dragend", mEvent);
      }
    }),
    google.maps.event.addListener(me.marker_.getMap(), "mousemove", function (mEvent) {
      var position;
      if (cMouseIsDown) {
        if (cDraggingLabel) {
          // Change the reported location from the mouse position to the marker position:
          mEvent.latLng = new google.maps.LatLng(mEvent.latLng.lat() - cLatOffset, mEvent.latLng.lng() - cLngOffset);
          position = me.getProjection().fromLatLngToDivPixel(mEvent.latLng);
          if (cRaiseEnabled) {
            me.crossDiv_.style.left = position.x + "px";
            me.crossDiv_.style.top = position.y + "px";
            me.crossDiv_.style.display = "";
            position.y -= cRaiseOffset;
          }
          me.marker_.setPosition(me.getProjection().fromDivPixelToLatLng(position));
          if (cRaiseEnabled) { // Don't raise the veil; this hack needed to make MSIE act properly
            me.eventDiv_.style.top = (position.y + cRaiseOffset) + "px";
          }
          google.maps.event.trigger(me.marker_, "drag", mEvent);
        } else {
          // Calculate offsets from the click point to the marker position:
          cLatOffset = mEvent.latLng.lat() - me.marker_.getPosition().lat();
          cLngOffset = mEvent.latLng.lng() - me.marker_.getPosition().lng();
          cSavedZIndex = me.marker_.getZIndex();
          cStartPosition = me.marker_.getPosition();
          cStartCenter = me.marker_.getMap().getCenter();
          cRaiseEnabled = me.marker_.get("raiseOnDrag");
          cDraggingLabel = true;
          me.marker_.setZIndex(1000000); // Moves the marker & label to the foreground during a drag
          mEvent.latLng = me.marker_.getPosition();
          google.maps.event.trigger(me.marker_, "dragstart", mEvent);
        }
      }
    }),
    google.maps.event.addDomListener(document, "keydown", function (e) {
      if (cDraggingLabel) {
        if (e.keyCode === 27) { // Esc key
          cRaiseEnabled = false;
          me.marker_.setPosition(cStartPosition);
          me.marker_.getMap().setCenter(cStartCenter);
          google.maps.event.trigger(document, "mouseup", e);
        }
      }
    }),
    google.maps.event.addDomListener(this.eventDiv_, "click", function (e) {
      if (me.marker_.getDraggable() || me.marker_.getClickable()) {
        if (cIgnoreClick) { // Ignore the click reported when a label drag ends
          cIgnoreClick = false;
        } else {
          google.maps.event.trigger(me.marker_, "click", e);
          cAbortEvent(e); // Prevent click from being passed on to map
        }
      }
    }),
    google.maps.event.addDomListener(this.eventDiv_, "dblclick", function (e) {
      if (me.marker_.getDraggable() || me.marker_.getClickable()) {
        google.maps.event.trigger(me.marker_, "dblclick", e);
        cAbortEvent(e); // Prevent map zoom when double-clicking on a label
      }
    }),
    google.maps.event.addListener(this.marker_, "dragstart", function (mEvent) {
      if (!cDraggingLabel) {
        cRaiseEnabled = this.get("raiseOnDrag");
      }
    }),
    google.maps.event.addListener(this.marker_, "drag", function (mEvent) {
      if (!cDraggingLabel) {
        if (cRaiseEnabled) {
          me.setPosition(cRaiseOffset);
          // During a drag, the marker's z-index is temporarily set to 1000000 to
          // ensure it appears above all other markers. Also set the label's z-index
          // to 1000000 (plus or minus 1 depending on whether the label is supposed
          // to be above or below the marker).
          me.labelDiv_.style.zIndex = 1000000 + (this.get("labelInBackground") ? -1 : +1);
        }
      }
    }),
    google.maps.event.addListener(this.marker_, "dragend", function (mEvent) {
      if (!cDraggingLabel) {
        if (cRaiseEnabled) {
          me.setPosition(0); // Also restores z-index of label
        }
      }
    }),
    google.maps.event.addListener(this.marker_, "position_changed", function () {
      me.setPosition();
    }),
    google.maps.event.addListener(this.marker_, "zindex_changed", function () {
      me.setZIndex();
    }),
    google.maps.event.addListener(this.marker_, "visible_changed", function () {
      me.setVisible();
    }),
    google.maps.event.addListener(this.marker_, "labelvisible_changed", function () {
      me.setVisible();
    }),
    google.maps.event.addListener(this.marker_, "title_changed", function () {
      me.setTitle();
    }),
    google.maps.event.addListener(this.marker_, "labelcontent_changed", function () {
      me.setContent();
    }),
    google.maps.event.addListener(this.marker_, "labelanchor_changed", function () {
      me.setAnchor();
    }),
    google.maps.event.addListener(this.marker_, "labelclass_changed", function () {
      me.setStyles();
    }),
    google.maps.event.addListener(this.marker_, "labelstyle_changed", function () {
      me.setStyles();
    })
  ];
};


/**
 * Removes the DIV for the label from the DOM. It also removes all event handlers.
 * This method is called automatically when the marker's setMap(null)
 * method is called.
 * @private
 */
MarkerLabel_.prototype.onRemove = function () {
  var i;
  this.labelDiv_.parentNode.removeChild(this.labelDiv_);
  this.eventDiv_.parentNode.removeChild(this.eventDiv_);


  // Remove event listeners:
  for (i = 0; i < this.listeners_.length; i++) {
    google.maps.event.removeListener(this.listeners_[i]);
  }
};


/**
 * Draws the label on the map.
 * @private
 */
MarkerLabel_.prototype.draw = function () {
  this.setContent();
  this.setTitle();
  this.setStyles();
};


/**
 * Sets the content of the label.
 * The content can be plain text or an HTML DOM node.
 * @private
 */
MarkerLabel_.prototype.setContent = function () {
  var content = this.marker_.get("labelContent");
  if (typeof content.nodeType === "undefined") {
    this.labelDiv_.innerHTML = content;
    this.eventDiv_.innerHTML = this.labelDiv_.innerHTML;
  } else {
    this.labelDiv_.innerHTML = ""; // Remove current content
    this.labelDiv_.appendChild(content);
    content = content.cloneNode(true);
    this.eventDiv_.innerHTML = ""; // Remove current content
    this.eventDiv_.appendChild(content);
  }
};


/**
 * Sets the content of the tool tip for the label. It is
 * always set to be the same as for the marker itself.
 * @private
 */
MarkerLabel_.prototype.setTitle = function () {
  this.eventDiv_.title = this.marker_.getTitle() || "";
};


/**
 * Sets the style of the label by setting the style sheet and applying
 * other specific styles requested.
 * @private
 */
MarkerLabel_.prototype.setStyles = function () {
  var i, labelStyle;


  // Apply style values from the style sheet defined in the labelClass parameter:
  this.labelDiv_.className = this.marker_.get("labelClass");
  this.eventDiv_.className = this.labelDiv_.className;


  // Clear existing inline style values:
  this.labelDiv_.style.cssText = "";
  this.eventDiv_.style.cssText = "";
  // Apply style values defined in the labelStyle parameter:
  labelStyle = this.marker_.get("labelStyle");
  for (i in labelStyle) {
    if (labelStyle.hasOwnProperty(i)) {
      this.labelDiv_.style[i] = labelStyle[i];
      this.eventDiv_.style[i] = labelStyle[i];
    }
  }
  this.setMandatoryStyles();
};


/**
 * Sets the mandatory styles to the DIV representing the label as well as to the
 * associated event DIV. This includes setting the DIV position, z-index, and visibility.
 * @private
 */
MarkerLabel_.prototype.setMandatoryStyles = function () {
  this.labelDiv_.style.position = "absolute";
  this.labelDiv_.style.overflow = "hidden";
  // Make sure the opacity setting causes the desired effect on MSIE:
  if (typeof this.labelDiv_.style.opacity !== "undefined" && this.labelDiv_.style.opacity !== "") {
    this.labelDiv_.style.MsFilter = "\"progid:DXImageTransform.Microsoft.Alpha(opacity=" + (this.labelDiv_.style.opacity * 100) + ")\"";
    this.labelDiv_.style.filter = "alpha(opacity=" + (this.labelDiv_.style.opacity * 100) + ")";
  }


  this.eventDiv_.style.position = this.labelDiv_.style.position;
  this.eventDiv_.style.overflow = this.labelDiv_.style.overflow;
  this.eventDiv_.style.opacity = 0.01; // Don't use 0; DIV won't be clickable on MSIE
  this.eventDiv_.style.MsFilter = "\"progid:DXImageTransform.Microsoft.Alpha(opacity=1)\"";
  this.eventDiv_.style.filter = "alpha(opacity=1)"; // For MSIE


  this.setAnchor();
  this.setPosition(); // This also updates z-index, if necessary.
  this.setVisible();
};


/**
 * Sets the anchor point of the label.
 * @private
 */
MarkerLabel_.prototype.setAnchor = function () {
  var anchor = this.marker_.get("labelAnchor");
  this.labelDiv_.style.marginLeft = -anchor.x + "px";
  this.labelDiv_.style.marginTop = -anchor.y + "px";
  this.eventDiv_.style.marginLeft = -anchor.x + "px";
  this.eventDiv_.style.marginTop = -anchor.y + "px";
};


/**
 * Sets the position of the label. The z-index is also updated, if necessary.
 * @private
 */
MarkerLabel_.prototype.setPosition = function (yOffset) {
  var position = this.getProjection().fromLatLngToDivPixel(this.marker_.getPosition());
  if (typeof yOffset === "undefined") {
    yOffset = 0;
  }
  this.labelDiv_.style.left = Math.round(position.x) + "px";
  this.labelDiv_.style.top = Math.round(position.y - yOffset) + "px";
  this.eventDiv_.style.left = this.labelDiv_.style.left;
  this.eventDiv_.style.top = this.labelDiv_.style.top;


  this.setZIndex();
};


/**
 * Sets the z-index of the label. If the marker's z-index property has not been defined, the z-index
 * of the label is set to the vertical coordinate of the label. This is in keeping with the default
 * stacking order for Google Maps: markers to the south are in front of markers to the north.
 * @private
 */
MarkerLabel_.prototype.setZIndex = function () {
  var zAdjust = (this.marker_.get("labelInBackground") ? -1 : +1);
  if (typeof this.marker_.getZIndex() === "undefined") {
    this.labelDiv_.style.zIndex = parseInt(this.labelDiv_.style.top, 10) + zAdjust;
    this.eventDiv_.style.zIndex = this.labelDiv_.style.zIndex;
  } else {
    this.labelDiv_.style.zIndex = this.marker_.getZIndex() + zAdjust;
    this.eventDiv_.style.zIndex = this.labelDiv_.style.zIndex;
  }
};


/**
 * Sets the visibility of the label. The label is visible only if the marker itself is
 * visible (i.e., its visible property is true) and the labelVisible property is true.
 * @private
 */
MarkerLabel_.prototype.setVisible = function () {
  if (this.marker_.get("labelVisible")) {
    this.labelDiv_.style.display = this.marker_.getVisible() ? "block" : "none";
  } else {
    this.labelDiv_.style.display = "none";
  }
  this.eventDiv_.style.display = this.labelDiv_.style.display;
};


/**
 * @name MarkerWithLabelOptions
 * @class This class represents the optional parameter passed to the {@link MarkerWithLabel} constructor.
 *  The properties available are the same as for google.maps.Marker with the addition
 *  of the properties listed below. To change any of these additional properties after the labeled
 *  marker has been created, call google.maps.Marker.set(propertyName, propertyValue).
 *  
 *  When any of these properties changes, a property changed event is fired. The names of these
 *  events are derived from the name of the property and are of the form propertyname_changed.
 *  For example, if the content of the label changes, a labelcontent_changed event
 *  is fired.
 *  
 * @property {string|Node} [labelContent] The content of the label (plain text or an HTML DOM node).
 * @property {Point} [labelAnchor] By default, a label is drawn with its anchor point at (0,0) so
 *  that its top left corner is positioned at the anchor point of the associated marker. Use this
 *  property to change the anchor point of the label. For example, to center a 50px-wide label
 *  beneath a marker, specify a labelAnchor of google.maps.Point(25, 0).
 *  (Note: x-values increase to the right and y-values increase to the top.)
 * @property {string} [labelClass] The name of the CSS class defining the styles for the label.
 *  Note that style values for position, overflow, top,
 *  left, zIndex, display, marginLeft, and
 *  marginTop are ignored; these styles are for internal use only.
 * @property {Object} [labelStyle] An object literal whose properties define specific CSS
 *  style values to be applied to the label. Style values defined here override those that may
 *  be defined in the labelClass style sheet. If this property is changed after the
 *  label has been created, all previously set styles (except those defined in the style sheet)
 *  are removed from the label before the new style values are applied.
 *  Note that style values for position, overflow, top,
 *  left, zIndex, display, marginLeft, and
 *  marginTop are ignored; these styles are for internal use only.
 * @property {boolean} [labelInBackground] A flag indicating whether a label that overlaps its
 *  associated marker should appear in the background (i.e., in a plane below the marker).
 *  The default is false, which causes the label to appear in the foreground.
 * @property {boolean} [labelVisible] A flag indicating whether the label is to be visible.
 *  The default is true. Note that even if labelVisible is
 *  true, the label will <i>not</i> be visible unless the associated marker is also
 *  visible (i.e., unless the marker's visible property is true).
 * @property {boolean} [raiseOnDrag] A flag indicating whether the label and marker are to be
 *  raised when the marker is dragged. The default is true. If a draggable marker is
 *  being created and a version of Google Maps API earlier than V3.3 is being used, this property
 *  must be set to false.
 * @property {boolean} [optimized] A flag indicating whether rendering is to be optimized for the
 *  marker. <b>Important: The optimized rendering technique is not supported by MarkerWithLabel,
 *  so the value of this parameter is always forced to false.
 * @property {string} [crossImage="http://maps.gstatic.com/intl/en_us/mapfiles/drag_cross_67_16.png"]
 *  The URL of the cross image to be displayed while dragging a marker.
 * @property {string} [handCursor="http://maps.gstatic.com/intl/en_us/mapfiles/closedhand_8_8.cur"]
 *  The URL of the cursor to be displayed while dragging a marker.
 */
/**
 * Creates a MarkerWithLabel with the options specified in {@link MarkerWithLabelOptions}.
 * @constructor
 * @param {MarkerWithLabelOptions} [opt_options] The optional parameters.
 */
function MarkerWithLabel(opt_options) {
  opt_options = opt_options || {};
  opt_options.labelContent = opt_options.labelContent || "";
  opt_options.labelAnchor = opt_options.labelAnchor || new google.maps.Point(0, 0);
  opt_options.labelClass = opt_options.labelClass || "markerLabels";
  opt_options.labelStyle = opt_options.labelStyle || {};
  opt_options.labelInBackground = opt_options.labelInBackground || false;
  if (typeof opt_options.labelVisible === "undefined") {
    opt_options.labelVisible = true;
  }
  if (typeof opt_options.raiseOnDrag === "undefined") {
    opt_options.raiseOnDrag = true;
  }
  if (typeof opt_options.clickable === "undefined") {
    opt_options.clickable = true;
  }
  if (typeof opt_options.draggable === "undefined") {
    opt_options.draggable = false;
  }
  if (typeof opt_options.optimized === "undefined") {
    opt_options.optimized = false;
  }
  opt_options.crossImage = opt_options.crossImage || "http" + (document.location.protocol === "https:" ? "s" : "") + "://maps.gstatic.com/intl/en_us/mapfiles/drag_cross_67_16.png";
  opt_options.handCursor = opt_options.handCursor || "http" + (document.location.protocol === "https:" ? "s" : "") + "://maps.gstatic.com/intl/en_us/mapfiles/closedhand_8_8.cur";
  opt_options.optimized = false; // Optimized rendering is not supported


  this.label = new MarkerLabel_(this, opt_options.crossImage, opt_options.handCursor); // Bind the label to the marker


  // Call the parent constructor. It calls Marker.setValues to initialize, so all
  // the new parameters are conveniently saved and can be accessed with get/set.
  // Marker.set triggers a property changed event (called "propertyname_changed")
  // that the marker label listens for in order to react to state changes.
  google.maps.Marker.apply(this, arguments);
}


inherits(MarkerWithLabel, google.maps.Marker);


/**
 * Overrides the standard Marker setMap function.
 * @param {Map} theMap The map to which the marker is to be added.
 * @private
 */
MarkerWithLabel.prototype.setMap = function (theMap) {


  // Call the inherited function...
  google.maps.Marker.prototype.setMap.apply(this, arguments);


  // ... then deal with the label:
  this.label.setMap(theMap);
};
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