source:
trunk/workshop-routing-foss4g/web/GeoExt/lib/GeoExt/widgets/UrlLegend.js
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1 | /** |
2 | * Copyright (c) 2008-2010 The Open Source Geospatial Foundation |
3 | * |
4 | * Published under the BSD license. |
5 | * See http://svn.geoext.org/core/trunk/geoext/license.txt for the full text |
6 | * of the license. |
7 | */ |
8 | |
9 | /** |
10 | * @include GeoExt/widgets/LegendImage.js |
11 | * @requires GeoExt/widgets/LayerLegend.js |
12 | */ |
13 | |
14 | /** api: (define) |
15 | * module = GeoExt |
16 | * class = UrlLegend |
17 | */ |
18 | |
19 | /** api: (extends) |
20 | * GeoExt/widgets/LayerLegend.js |
21 | */ |
22 | |
23 | Ext.namespace('GeoExt'); |
24 | |
25 | /** api: constructor |
26 | * .. class:: UrlLegend(config) |
27 | * |
28 | * Show a legend image in a BoxComponent and make sure load errors are |
29 | * dealt with. |
30 | */ |
31 | GeoExt.UrlLegend = Ext.extend(GeoExt.LayerLegend, { |
32 | |
33 | /** private: method[initComponent] |
34 | * Initializes the legend image component. |
35 | */ |
36 | initComponent: function() { |
37 | GeoExt.UrlLegend.superclass.initComponent.call(this); |
38 | this.add(new GeoExt.LegendImage({ |
39 | url: this.layerRecord.get("legendURL") |
40 | })); |
41 | }, |
42 | |
43 | /** private: method[update] |
44 | * Private override |
45 | */ |
46 | update: function() { |
47 | GeoExt.UrlLegend.superclass.update.apply(this, arguments); |
48 | this.items.get(1).setUrl(this.layerRecord.get("legendURL")); |
49 | } |
50 | |
51 | }); |
52 | |
53 | /** private: method[supports] |
54 | * Private override |
55 | */ |
56 | GeoExt.UrlLegend.supports = function(layerRecord) { |
57 | return layerRecord.get("legendURL") != null; |
58 | }; |
59 | |
60 | /** api: legendtype = gx_urllegend */ |
61 | GeoExt.LayerLegend.types["gx_urllegend"] = GeoExt.UrlLegend; |
62 | |
63 | /** api: xtype = gx_urllegend */ |
64 | Ext.reg('gx_urllegend', GeoExt.UrlLegend); |
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