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/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
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* text of the license. */
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/**
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* @class
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*/
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OpenLayers.Control = Class.create();
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OpenLayers.Control.prototype = {
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/** this gets set in the addControl() function in OpenLayers.Map
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* @type OpenLayers.Map */
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map: null,
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/** @type DOMElement */
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div: null,
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/** @type OpenLayers.Pixel */
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position: null,
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/** @type OpenLayers.Pixel */
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mouseDragStart: null,
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/**
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* @constructor
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*
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* @param {Object} options
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*/
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initialize: function (options) {
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Object.extend(this, options);
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},
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/**
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*
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*/
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destroy: function () {
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// eliminate circular references
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this.map = null;
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},
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/** Set the map property for the control. This is done through an accessor
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* so that subclasses can override this and take special action once
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* they have their map variable set.
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*
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* @param {OpenLayers.Map} map
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*/
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setMap: function(map) {
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this.map = map;
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},
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/**
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* @param {OpenLayers.Pixel} px
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*
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* @returns A reference to the DIV DOMElement containing the control
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* @type DOMElement
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*/
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draw: function (px) {
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if (this.div == null) {
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this.div = OpenLayers.Util.createDiv();
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}
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if (px != null) {
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this.position = px.clone();
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}
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this.moveTo(this.position);
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return this.div;
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},
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/**
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* @param {OpenLayers.Pixel} px
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*/
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moveTo: function (px) {
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if ((px != null) && (this.div != null)) {
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this.div.style.left = px.x + "px";
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this.div.style.top = px.x + "px";
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}
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},
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/** @final @type String */
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CLASS_NAME: "OpenLayers.Control"
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};
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