3948913bfc
has been done in the NaturalDocs branch back to trunk. Thanks to everyone who helped out in making this happen. (I could list people, but the list would be long, and I'm already mentally on vacation.) git-svn-id: http://svn.openlayers.org/trunk/openlayers@3545 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
344 lines
9.4 KiB
JavaScript
344 lines
9.4 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under a modified BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/repository-license.txt
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* for the full text of the license. */
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/**
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* @requires OpenLayers/Layer/EventPane.js
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* @requires OpenLayers/Layer/FixedZoomLevels.js
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*
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* Class: OpenLayers.Layer.Yahoo
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*
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* Inherits:
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* - <OpenLayers.Layer.EventPane>
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* - <OpenLayers.Layer.FixedZoomLevels>v
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*/
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OpenLayers.Layer.Yahoo = OpenLayers.Class.create();
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OpenLayers.Layer.Yahoo.prototype =
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OpenLayers.Class.inherit( OpenLayers.Layer.EventPane,
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OpenLayers.Layer.FixedZoomLevels, {
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/**
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* Constant: MIN_ZOOM_LEVEL
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* {Integer} 0
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*/
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MIN_ZOOM_LEVEL: 0,
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/**
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* Constant: MAX_ZOOM_LEVEL
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* {Integer} 15
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*/
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MAX_ZOOM_LEVEL: 15,
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/**
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* Constant: RESOLUTIONS
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* {Array(Float)} Hardcode these resolutions so that they are more closely
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* tied with the standard wms projection
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*/
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RESOLUTIONS: [1.40625,0.703125,0.3515625,0.17578125,0.087890625,0.0439453125,0.02197265625,0.010986328125,0.0054931640625,0.00274658203125,0.001373291015625,0.0006866455078125,0.00034332275390625,0.000171661376953125,0.0000858306884765625,0.00004291534423828125],
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/**
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* APIProperty: type
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* {YahooMapType}
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*/
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type: null,
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/**
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* Constructor: OpenLayers.Layer.Yahoo
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*
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* Parameters:
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* name - {String}
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* options - {Object}
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*/
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initialize: function(name, options) {
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OpenLayers.Layer.EventPane.prototype.initialize.apply(this, arguments);
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OpenLayers.Layer.FixedZoomLevels.prototype.initialize.apply(this,
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arguments);
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},
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/**
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* Method: loadMapObject
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*/
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loadMapObject:function() {
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try { //do not crash!
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this.mapObject = new YMap(this.div, this.type);
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} catch(e) {}
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},
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/**
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* APIMethod: setMap
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* Overridden from EventPane because we need to remove this yahoo event
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* pane which prohibits our drag and drop, and we can only do this
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* once the map has been loaded and centered.
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*
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* Parameters:
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* map - {<OpenLayers.Map>}
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*/
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setMap: function(map) {
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OpenLayers.Layer.EventPane.prototype.setMap.apply(this, arguments);
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this.map.events.register("moveend", this, this.fixYahooEventPane);
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},
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/**
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* Method: fixYahooEventPane
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* The map has been centered, so the mysterious yahoo eventpane has been
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* added. we remove it so that it doesnt mess with *our* event pane.
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*/
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fixYahooEventPane: function() {
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var yahooEventPane = OpenLayers.Util.getElement("ygddfdiv");
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if (yahooEventPane != null) {
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if (yahooEventPane.parentNode != null)
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yahooEventPane.parentNode.removeChild(yahooEventPane);
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this.map.events.unregister("moveend", this,
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this.fixYahooEventPane);
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}
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},
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/**
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* APIMethod: getWarningHTML
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*
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* Return:
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* {String} String with information on why layer is broken, how to get
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* it working.
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*/
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getWarningHTML:function() {
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var html = "";
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html += "The Yahoo Layer was unable to load correctly.<br>";
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html += "<br>";
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html += "To get rid of this message, select a new BaseLayer "
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html += "in the layer switcher in the upper-right corner.<br>";
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html += "<br>";
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html += "Most likely, this is because the Yahoo library";
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html += " script was either not correctly included.<br>";
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html += "<br>";
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html += "Developers: For help getting this working correctly, ";
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html += "<a href='http://trac.openlayers.org/wiki/Yahoo' "
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html += "target='_blank'>";
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html += "click here";
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html += "</a>";
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return html;
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},
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/********************************************************/
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/* */
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/* Translation Functions */
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/* */
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/* The following functions translate GMaps and OL */
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/* formats for Pixel, LonLat, Bounds, and Zoom */
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/* */
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/********************************************************/
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//
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// TRANSLATION: MapObject Zoom <-> OpenLayers Zoom
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//
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/**
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* APIMethod: getOLZoomFromMapObjectZoom
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*
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* Parameters:
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* gZoom - {Integer}
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*
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* Return:
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* {Integer} An OpenLayers Zoom level, translated from the passed in gZoom
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* Returns null if null value is passed in.
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*/
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getOLZoomFromMapObjectZoom: function(moZoom) {
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var zoom = null;
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if (moZoom != null) {
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zoom = OpenLayers.Layer.FixedZoomLevels.prototype.getOLZoomFromMapObjectZoom.apply(this, [moZoom]);
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zoom = 18 - zoom;
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}
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return zoom;
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},
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/**
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* APIMethod: getMapObjectZoomFromOLZoom
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*
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* Parameters:
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* olZoom - {Integer}
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*
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* Return:
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* {Integer} A MapObject level, translated from the passed in olZoom
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* Returns null if null value is passed in
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*/
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getMapObjectZoomFromOLZoom: function(olZoom) {
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var zoom = null;
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if (olZoom != null) {
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zoom = OpenLayers.Layer.FixedZoomLevels.prototype.getMapObjectZoomFromOLZoom.apply(this, [olZoom]);
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zoom = 18 - zoom;
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}
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return zoom;
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},
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/************************************
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* *
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* MapObject Interface Controls *
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* *
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************************************/
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// Get&Set Center, Zoom
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/**
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* APIMethod: setMapObjectCenter
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* Set the mapObject to the specified center and zoom
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*
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* Parameters:
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* center - {Object} MapObject LonLat format
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* zoom - {int} MapObject zoom format
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*/
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setMapObjectCenter: function(center, zoom) {
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this.mapObject.drawZoomAndCenter(center, zoom);
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},
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/**
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* APIMethod: getMapObjectCenter
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*
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* Return:
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* {Object} The mapObject's current center in Map Object format
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*/
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getMapObjectCenter: function() {
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return this.mapObject.getCenterLatLon();
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},
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/**
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* APIMethod: getMapObjectZoom
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*
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* Return:
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* {Integer} The mapObject's current zoom, in Map Object format
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*/
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getMapObjectZoom: function() {
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return this.mapObject.getZoomLevel();
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},
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// LonLat - Pixel Translation
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/**
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* APIMethod: getMapObjectLonLatFromMapObjectPixel
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*
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* Parameters:
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* moPixel - {Object} MapObject Pixel format
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*
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* Return:
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* {Object} MapObject LonLat translated from MapObject Pixel
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*/
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getMapObjectLonLatFromMapObjectPixel: function(moPixel) {
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return this.mapObject.convertXYLatLon(moPixel);
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},
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/**
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* APIMethod: getMapObjectPixelFromMapObjectLonLat
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*
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* Parameters:
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* moLonLat - {Object} MapObject LonLat format
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*
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* Return:
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* {Object} MapObject Pixel transtlated from MapObject LonLat
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*/
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getMapObjectPixelFromMapObjectLonLat: function(moLonLat) {
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return this.mapObject.convertLatLonXY(moLonLat);
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},
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/************************************
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* *
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* MapObject Primitives *
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* *
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************************************/
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// LonLat
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/**
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* APIMethod: getLongitudeFromMapObjectLonLat
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*
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* Parameters:
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* moLonLat - {Object} MapObject LonLat format
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*
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* Return:
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* {Float} Longitude of the given MapObject LonLat
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*/
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getLongitudeFromMapObjectLonLat: function(moLonLat) {
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return moLonLat.Lon;
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},
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/**
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* APIMethod: getLatitudeFromMapObjectLonLat
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*
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* Parameters:
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* moLonLat - {Object} MapObject LonLat format
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*
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* Return:
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* {Float} Latitude of the given MapObject LonLat
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*/
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getLatitudeFromMapObjectLonLat: function(moLonLat) {
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return moLonLat.Lat;
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},
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/**
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* APIMethod: getMapObjectLonLatFromLonLat
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*
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* Parameters:
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* lon - {Float}
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* lat - {Float}
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*
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* Return:
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* {Object} MapObject LonLat built from lon and lat params
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*/
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getMapObjectLonLatFromLonLat: function(lon, lat) {
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return new YGeoPoint(lat, lon);
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},
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// Pixel
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/**
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* APIMethod: getXFromMapObjectPixel
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*
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* Parameters:
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* moPixel - {Object} MapObject Pixel format
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*
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* Return:
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* {Integer} X value of the MapObject Pixel
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*/
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getXFromMapObjectPixel: function(moPixel) {
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return moPixel.x;
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},
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/**
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* APIMethod: getYFromMapObjectPixel
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*
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* Parameters:
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* moPixel - {Object} MapObject Pixel format
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*
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* Return:
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* {Integer} Y value of the MapObject Pixel
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*/
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getYFromMapObjectPixel: function(moPixel) {
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return moPixel.y;
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},
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/**
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* APIMethod: getMapObjectPixelFromXY
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*
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* Parameters:
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* x - {Integer}
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* y - {Integer}
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*
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* Return:
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* {Object} MapObject Pixel from x and y parameters
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*/
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getMapObjectPixelFromXY: function(x, y) {
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return new YCoordPoint(x, y);
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Layer.Yahoo"
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});
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