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[syp.git] / openlayers / lib / OpenLayers / Control / ZoomOut.js
1 /* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
2  * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
3  * full text of the license. */
4
5 /**
6  * @requires OpenLayers/Control.js
7  */
8
9 /**
10  * Class: OpenLayers.Control.ZoomOut
11  * The ZoomOut control is a button to decrease the zoom level of a map.
12  *
13  * Inherits from:
14  *  - <OpenLayers.Control>
15  */
16 OpenLayers.Control.ZoomOut = OpenLayers.Class(OpenLayers.Control, {
17
18     /**
19      * Property: type
20      * {String} The type of <OpenLayers.Control> -- When added to a 
21      *     <Control.Panel>, 'type' is used by the panel to determine how to 
22      *     handle our events.
23      */
24     type: OpenLayers.Control.TYPE_BUTTON,
25     
26     /**
27      * Method: trigger
28      */
29     trigger: function(){
30         this.map.zoomOut();
31     },
32
33     CLASS_NAME: "OpenLayers.Control.ZoomOut"
34 });