1e87b26029
git-svn-id: http://svn.openlayers.org/trunk/openlayers@9774 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
/* 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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* The Pan control is a single button to pan the map in one direction. For
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* a more complete control see <OpenLayers.Control.PanPanel>.
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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, defaults to 50.
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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";
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