|
1
|
/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
|
|
2
|
* See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
|
|
3
|
* text of the license. */
|
|
4
|
|
|
5
|
/**
|
|
6
|
* @class
|
|
7
|
*/
|
|
8
|
OpenLayers.Marker = Class.create();
|
|
9
|
OpenLayers.Marker.prototype = {
|
|
10
|
|
|
11
|
/** @type OpenLayers.Icon */
|
|
12
|
icon: null,
|
|
13
|
|
|
14
|
/** location of object
|
|
15
|
* @type OpenLayers.LonLat */
|
|
16
|
lonlat: null,
|
|
17
|
|
|
18
|
/** @type OpenLayers.Events*/
|
|
19
|
events: null,
|
|
20
|
|
|
21
|
/** @type OpenLayers.Map */
|
|
22
|
map: null,
|
|
23
|
|
|
24
|
/**
|
|
25
|
* @constructor
|
|
26
|
*
|
|
27
|
* @param {OpenLayers.Icon} icon
|
|
28
|
* @param {OpenLayers.LonLat lonlat
|
|
29
|
*/
|
|
30
|
initialize: function(lonlat, icon) {
|
|
31
|
if (arguments.length > 0) {
|
|
32
|
this.lonlat = lonlat;
|
|
33
|
this.icon = (icon) ? icon : OpenLayers.Marker.defaultIcon();
|
|
34
|
this.events = new OpenLayers.Events(this, this.icon.imageDiv, null);
|
|
35
|
}
|
|
36
|
},
|
|
37
|
|
|
38
|
destroy: function() {
|
|
39
|
this.map = null;
|
|
40
|
|
|
41
|
if (this.icon != null) {
|
|
42
|
this.icon.destroy();
|
|
43
|
this.icon = null;
|
|
44
|
}
|
|
45
|
},
|
|
46
|
|
|
47
|
/**
|
|
48
|
* @param {OpenLayers.Pixel} px
|
|
49
|
*
|
|
50
|
* @return A new DOM Image with this marker?s icon set at the
|
|
51
|
* location passed-in
|
|
52
|
* @type DOMElement
|
|
53
|
*/
|
|
54
|
draw: function(px) {
|
|
55
|
return this.icon.draw(px);
|
|
56
|
},
|
|
57
|
|
|
58
|
/**
|
|
59
|
* @param {OpenLayers.Pixel} px
|
|
60
|
*/
|
|
61
|
moveTo: function (px) {
|
|
62
|
if ((px != null) && (this.icon != null)) {
|
|
63
|
this.icon.moveTo(px);
|
|
64
|
}
|
|
65
|
},
|
|
66
|
|
|
67
|
/**
|
|
68
|
* @returns Whether or not the marker is currently visible on screen.
|
|
69
|
* @type Boolean
|
|
70
|
*/
|
|
71
|
onScreen:function() {
|
|
72
|
|
|
73
|
var onScreen = false;
|
|
74
|
if (this.map) {
|
|
75
|
var screenBounds = this.map.getExtent();
|
|
76
|
onScreen = screenBounds.contains(this.lonlat.lon, this.lonlat.lat);
|
|
77
|
}
|
|
78
|
return onScreen;
|
|
79
|
},
|
|
80
|
|
|
81
|
/**
|
|
82
|
* @param {float} inflate
|
|
83
|
*/
|
|
84
|
inflate: function(inflate) {
|
|
85
|
if (this.icon) {
|
|
86
|
var newSize = new OpenLayers.Size(this.icon.size.w * inflate,
|
|
87
|
this.icon.size.h * inflate);
|
|
88
|
this.icon.setSize(newSize);
|
|
89
|
}
|
|
90
|
},
|
|
91
|
|
|
92
|
/** Hide or show the icon
|
|
93
|
*
|
|
94
|
* @param {Boolean} display
|
|
95
|
*/
|
|
96
|
display: function(display) {
|
|
97
|
this.icon.display(display);
|
|
98
|
},
|
|
99
|
|
|
100
|
/** @final @type String */
|
|
101
|
CLASS_NAME: "OpenLayers.Marker"
|
|
102
|
};
|
|
103
|
|
|
104
|
|
|
105
|
/**
|
|
106
|
* @returns A default OpenLayers.Icon to use for a marker
|
|
107
|
* @type OpenLayers.Icon
|
|
108
|
*/
|
|
109
|
OpenLayers.Marker.defaultIcon = function() {
|
|
110
|
var url = OpenLayers.Util.getImagesLocation() + "marker.png";
|
|
111
|
var size = new OpenLayers.Size(21, 25);
|
|
112
|
var calculateOffset = function(size) {
|
|
113
|
return new OpenLayers.Pixel(-(size.w/2), -size.h);
|
|
114
|
};
|
|
115
|
|
|
116
|
return new OpenLayers.Icon(url, size, null, calculateOffset);
|
|
117
|
};
|
|
118
|
|
|
119
|
|