[76] | 1 | /** |
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| 2 | * Copyright (c) 2008-2010 The Open Source Geospatial Foundation |
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| 3 | * |
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| 4 | * Published under the BSD license. |
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| 5 | * See http://svn.geoext.org/core/trunk/geoext/license.txt for the full text |
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| 6 | * of the license. |
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| 7 | */ |
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| 8 | |
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| 9 | /** api: (define) |
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| 10 | * module = GeoExt.data |
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| 11 | * class = LayerRecord |
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| 12 | * base_link = `Ext.data.Record <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Record>`_ |
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| 13 | */ |
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| 14 | Ext.namespace("GeoExt.data"); |
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| 15 | |
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| 16 | /** api: constructor |
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| 17 | * .. class:: LayerRecord |
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| 18 | * |
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| 19 | * A record that represents an ``OpenLayers.Layer``. This record |
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| 20 | * will always have at least the following fields: |
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| 21 | * |
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| 22 | * * title ``String`` |
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| 23 | */ |
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| 24 | GeoExt.data.LayerRecord = Ext.data.Record.create([ |
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| 25 | {name: "layer"}, |
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| 26 | {name: "title", type: "string", mapping: "name"} |
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| 27 | ]); |
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| 28 | |
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| 29 | /** api: method[getLayer] |
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| 30 | * :return: ``OpenLayers.Layer`` |
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| 31 | * |
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| 32 | * Gets the layer for this record. |
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| 33 | */ |
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| 34 | GeoExt.data.LayerRecord.prototype.getLayer = function() { |
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| 35 | return this.get("layer"); |
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| 36 | }; |
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| 37 | |
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| 38 | /** api: method[setLayer] |
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| 39 | * :param layer: ``OpenLayers.Layer`` |
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| 40 | * |
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| 41 | * Sets the layer for this record. |
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| 42 | */ |
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| 43 | GeoExt.data.LayerRecord.prototype.setLayer = function(layer) { |
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| 44 | if (layer !== this.data.layer) { |
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| 45 | this.dirty = true; |
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| 46 | if(!this.modified) { |
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| 47 | this.modified = {}; |
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| 48 | } |
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| 49 | if(this.modified.layer === undefined) { |
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| 50 | this.modified.layer = this.data.layer; |
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| 51 | } |
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| 52 | this.data.layer = layer; |
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| 53 | if(!this.editing) { |
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| 54 | this.afterEdit(); |
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| 55 | } |
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| 56 | } |
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| 57 | }; |
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| 58 | |
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| 59 | /** api: method[clone] |
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| 60 | * :param id: ``String`` (optional) A new Record id. |
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| 61 | * :return: class:`GeoExt.data.LayerRecord` A new layer record. |
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| 62 | * |
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| 63 | * Creates a clone of this LayerRecord. |
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| 64 | */ |
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| 65 | GeoExt.data.LayerRecord.prototype.clone = function(id) { |
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| 66 | var layer = this.getLayer() && this.getLayer().clone(); |
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| 67 | return new this.constructor( |
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| 68 | Ext.applyIf({layer: layer}, this.data), |
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| 69 | id || layer.id |
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| 70 | ); |
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| 71 | }; |
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| 72 | |
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| 73 | /** api: classmethod[create] |
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| 74 | * :param o: ``Array`` Field definition as in ``Ext.data.Record.create``. Can |
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| 75 | * be omitted if no additional fields are required. |
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| 76 | * :return: ``Function`` A specialized :class:`GeoExt.data.LayerRecord` |
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| 77 | * constructor. |
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| 78 | * |
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| 79 | * Creates a constructor for a :class:`GeoExt.data.LayerRecord`, optionally |
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| 80 | * with additional fields. |
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| 81 | */ |
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| 82 | GeoExt.data.LayerRecord.create = function(o) { |
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| 83 | var f = Ext.extend(GeoExt.data.LayerRecord, {}); |
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| 84 | var p = f.prototype; |
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| 85 | |
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| 86 | p.fields = new Ext.util.MixedCollection(false, function(field) { |
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| 87 | return field.name; |
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| 88 | }); |
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| 89 | |
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| 90 | GeoExt.data.LayerRecord.prototype.fields.each(function(f) { |
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| 91 | p.fields.add(f); |
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| 92 | }); |
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| 93 | |
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| 94 | if(o) { |
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| 95 | for(var i = 0, len = o.length; i < len; i++){ |
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| 96 | p.fields.add(new Ext.data.Field(o[i])); |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | f.getField = function(name) { |
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| 101 | return p.fields.get(name); |
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| 102 | }; |
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| 103 | |
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| 104 | return f; |
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| 105 | }; |
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