+++ /dev/null
-/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
- * See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
- * text of the license. */
-/**
- * @class
- */
-OpenLayers.Layer = Class.create();
-OpenLayers.Layer.prototype = {
-
- /** @type String */
- name: null,
-
- /** @type DOMElement */
- div: null,
-
- /** This variable is set in map.addLayer, not within the layer itself
- * @type OpenLayers.Map */
- map: null,
-
- /**
- * @constructor
- *
- * @param {String} name
- */
- initialize: function(name) {
- if (arguments.length > 0) {
- this.name = name;
- if (this.div == null) {
- this.div = OpenLayers.Util.createDiv();
- this.div.style.width = "100%";
- this.div.style.height = "100%";
- }
- }
- },
-
- /**
- * Destroy is a destructor: this is to alleviate cyclic references which
- * the Javascript garbage cleaner can not take care of on its own.
- */
- destroy: function() {
- if (this.map != null) {
- this.map.removeLayer(this);
- }
- this.map = null;
- },
-
- /**
- * @params {OpenLayers.Bounds} bound
- * @params {Boolean} zoomChanged tells when zoom has changed, as layers have to do some init work in that case.
- */
- moveTo: function (bound, zoomChanged) {
- // not implemented here
- return;
- },
-
- /**
- * @param {OpenLayers.Map} map
- */
- setMap: function(map) {
- this.map = map;
- },
-
- /**
- * @returns Whether or not the layer is a base layer. This should be
- * determined individually by all subclasses.
- * @type Boolean
- */
- isBaseLayer: function() {
- //this function should be implemented by all subclasses.
- },
-
- /**
- * @returns Whether or not the layer is visible
- * @type Boolean
- */
- getVisibility: function() {
- return (this.div.style.display != "none");
- },
-
- /**
- * @param {bool} visible
- */
- setVisibility: function(visible) {
- this.div.style.display = (visible) ? "block" : "none";
- if ((visible) && (this.map != null)) {
- this.moveTo(this.map.getExtent());
- }
- },
-
- /** @final @type String */
- CLASS_NAME: "OpenLayers.Layer"
-};