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Viewing changes to gis/dhis-gis-geostat/mfbase/openlayers/lib/OpenLayers/Control/Pan.js

  • Committer: larshelge at gmail
  • Date: 2009-03-03 16:46:36 UTC
  • Revision ID: larshelge@gmail.com-20090303164636-2sjlrquo7ib1gf7r
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gis/dhis-gis-geostat/mfbase/openlayers/lib/OpenLayers/Control/Pan.js
 
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/* Copyright (c) 2006-2008 MetaCarta, Inc., published under the Clear BSD
 
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 * license.  See http://svn.openlayers.org/trunk/openlayers/license.txt for the
 
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 * full text of the license. */
 
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/**
 
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 * @requires OpenLayers/Control.js
 
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 */
 
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/**
 
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 * Class: OpenLayers.Control.Pan
 
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 *
 
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 * Inherits from:
 
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 *  - <OpenLayers.Control>
 
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 */
 
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OpenLayers.Control.Pan = OpenLayers.Class(OpenLayers.Control, {
 
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    /** 
 
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     * APIProperty: slideFactor
 
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     * {Integer} Number of pixels by which we'll pan the map in any direction 
 
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     *     on clicking the arrow buttons. 
 
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     */
 
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    slideFactor: 50,
 
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    /** 
 
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     * Property: direction
 
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     * {String} in {'North', 'South', 'East', 'West'}
 
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     */
 
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    direction: null,
 
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    /**
 
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     * Property: type
 
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     * {String} The type of <OpenLayers.Control> -- When added to a 
 
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     *     <Control.Panel>, 'type' is used by the panel to determine how to 
 
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     *     handle our events.
 
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     */
 
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    type: OpenLayers.Control.TYPE_BUTTON,
 
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    /**
 
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     * Constructor: OpenLayers.Control.Pan 
 
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     * Control which handles the panning (in any of the cardinal directions)
 
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     *     of the map by a set px distance. 
 
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     *
 
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     * Parameters:
 
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     * direction - {String} The direction this button should pan.
 
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     * options - {Object} An optional object whose properties will be used
 
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     *     to extend the control.
 
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     */
 
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    initialize: function(direction, options) {
 
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        this.direction = direction;
 
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        this.CLASS_NAME += this.direction;
 
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        OpenLayers.Control.prototype.initialize.apply(this, [options]);
 
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    },
 
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    /**
 
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     * Method: trigger
 
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     */
 
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    trigger: function(){
 
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        switch (this.direction) {
 
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            case OpenLayers.Control.Pan.NORTH: 
 
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                this.map.pan(0, -this.slideFactor);
 
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                break;
 
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            case OpenLayers.Control.Pan.SOUTH: 
 
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                this.map.pan(0, this.slideFactor);
 
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                break;
 
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            case OpenLayers.Control.Pan.WEST: 
 
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                this.map.pan(-this.slideFactor, 0);
 
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                break;
 
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            case OpenLayers.Control.Pan.EAST: 
 
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                this.map.pan(this.slideFactor, 0);
 
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                break;
 
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        }
 
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    },
 
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    CLASS_NAME: "OpenLayers.Control.Pan"
 
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});
 
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OpenLayers.Control.Pan.NORTH = "North";
 
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OpenLayers.Control.Pan.SOUTH = "South";
 
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OpenLayers.Control.Pan.EAST = "East";
 
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OpenLayers.Control.Pan.WEST = "West";
 
 
b'\\ No newline at end of file'