Add overview myway timeliness table
[busui.git] / labs / openlayers / lib / OpenLayers / Control / Pan.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for 
 * full list of contributors). Published under the Clear BSD license.  
 * See http://svn.openlayers.org/trunk/openlayers/license.txt for the
 * full text of the license. */
 
/**
 * @requires OpenLayers/Control.js
 */
 
/**
 * Class: OpenLayers.Control.Pan
 * The Pan control is a single button to pan the map in one direction. For
 * a more complete control see <OpenLayers.Control.PanPanel>.
 *
 * Inherits from:
 *  - <OpenLayers.Control>
 */
OpenLayers.Control.Pan = OpenLayers.Class(OpenLayers.Control, {
 
    /** 
     * APIProperty: slideFactor
     * {Integer} Number of pixels by which we'll pan the map in any direction 
     *     on clicking the arrow buttons, defaults to 50.
     */
    slideFactor: 50,
 
    /** 
     * Property: direction
     * {String} in {'North', 'South', 'East', 'West'}
     */
    direction: null,
 
    /**
     * Property: type
     * {String} The type of <OpenLayers.Control> -- When added to a 
     *     <Control.Panel>, 'type' is used by the panel to determine how to 
     *     handle our events.
     */
    type: OpenLayers.Control.TYPE_BUTTON,
 
    /**
     * Constructor: OpenLayers.Control.Pan 
     * Control which handles the panning (in any of the cardinal directions)
     *     of the map by a set px distance. 
     *
     * Parameters:
     * direction - {String} The direction this button should pan.
     * options - {Object} An optional object whose properties will be used
     *     to extend the control.
     */
    initialize: function(direction, options) {
    
        this.direction = direction;
        this.CLASS_NAME += this.direction;
        
        OpenLayers.Control.prototype.initialize.apply(this, [options]);
    },
    
    /**
     * Method: trigger
     */
    trigger: function(){
    
        switch (this.direction) {
            case OpenLayers.Control.Pan.NORTH: 
                this.map.pan(0, -this.slideFactor);
                break;
            case OpenLayers.Control.Pan.SOUTH: 
                this.map.pan(0, this.slideFactor);
                break;
            case OpenLayers.Control.Pan.WEST: 
                this.map.pan(-this.slideFactor, 0);
                break;
            case OpenLayers.Control.Pan.EAST: 
                this.map.pan(this.slideFactor, 0);
                break;
        }
    },
 
    CLASS_NAME: "OpenLayers.Control.Pan"
});
 
OpenLayers.Control.Pan.NORTH = "North";
OpenLayers.Control.Pan.SOUTH = "South";
OpenLayers.Control.Pan.EAST = "East";
OpenLayers.Control.Pan.WEST = "West";