1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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2 | * full list of contributors). Published under the Clear BSD license. |
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3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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4 | * full text of the license. */ |
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5 | |
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6 | |
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7 | /** |
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8 | * @requires OpenLayers/Control.js |
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9 | * @requires OpenLayers/Feature/Vector.js |
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10 | */ |
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11 | |
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12 | /** |
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13 | * Class: OpenLayers.Control.DrawFeature |
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14 | * The DrawFeature control draws point, line or polygon features on a vector |
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15 | * layer when active. |
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16 | * |
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17 | * Inherits from: |
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18 | * - <OpenLayers.Control> |
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19 | */ |
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20 | OpenLayers.Control.DrawFeature = OpenLayers.Class(OpenLayers.Control, { |
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21 | |
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22 | /** |
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23 | * Property: layer |
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24 | * {<OpenLayers.Layer.Vector>} |
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25 | */ |
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26 | layer: null, |
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27 | |
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28 | /** |
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29 | * Property: callbacks |
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30 | * {Object} The functions that are sent to the handler for callback |
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31 | */ |
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32 | callbacks: null, |
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33 | |
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34 | /** |
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35 | * Constant: EVENT_TYPES |
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36 | * |
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37 | * Supported event types: |
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38 | * featureadded - Triggered when a feature is added |
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39 | */ |
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40 | EVENT_TYPES: ["featureadded"], |
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41 | |
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42 | /** |
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43 | * APIProperty: multi |
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44 | * {Boolean} Cast features to multi-part geometries before passing to the |
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45 | * layer. Default is false. |
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46 | */ |
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47 | multi: false, |
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48 | |
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49 | /** |
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50 | * APIProperty: featureAdded |
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51 | * {Function} Called after each feature is added |
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52 | */ |
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53 | featureAdded: function() {}, |
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54 | |
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55 | /** |
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56 | * APIProperty: handlerOptions |
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57 | * {Object} Used to set non-default properties on the control's handler |
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58 | */ |
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59 | handlerOptions: null, |
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60 | |
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61 | /** |
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62 | * Constructor: OpenLayers.Control.DrawFeature |
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63 | * |
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64 | * Parameters: |
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65 | * layer - {<OpenLayers.Layer.Vector>} |
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66 | * handler - {<OpenLayers.Handler>} |
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67 | * options - {Object} |
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68 | */ |
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69 | initialize: function(layer, handler, options) { |
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70 | |
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71 | // concatenate events specific to vector with those from the base |
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72 | this.EVENT_TYPES = |
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73 | OpenLayers.Control.DrawFeature.prototype.EVENT_TYPES.concat( |
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74 | OpenLayers.Control.prototype.EVENT_TYPES |
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75 | ); |
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76 | |
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77 | OpenLayers.Control.prototype.initialize.apply(this, [options]); |
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78 | this.callbacks = OpenLayers.Util.extend( |
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79 | { |
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80 | done: this.drawFeature, |
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81 | modify: function(vertex, feature) { |
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82 | this.layer.events.triggerEvent( |
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83 | "sketchmodified", {vertex: vertex, feature: feature} |
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84 | ); |
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85 | }, |
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86 | create: function(vertex, feature) { |
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87 | this.layer.events.triggerEvent( |
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88 | "sketchstarted", {vertex: vertex, feature: feature} |
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89 | ); |
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90 | } |
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91 | }, |
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92 | this.callbacks |
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93 | ); |
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94 | this.layer = layer; |
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95 | this.handlerOptions = this.handlerOptions || {}; |
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96 | if (!("multi" in this.handlerOptions)) { |
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97 | this.handlerOptions.multi = this.multi; |
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98 | } |
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99 | var sketchStyle = this.layer.styleMap && this.layer.styleMap.styles.temporary; |
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100 | if(sketchStyle) { |
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101 | this.handlerOptions.layerOptions = OpenLayers.Util.applyDefaults( |
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102 | this.handlerOptions.layerOptions, |
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103 | {styleMap: new OpenLayers.StyleMap({"default": sketchStyle})} |
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104 | ); |
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105 | } |
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106 | this.handler = new handler(this, this.callbacks, this.handlerOptions); |
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107 | }, |
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108 | |
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109 | /** |
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110 | * Method: drawFeature |
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111 | */ |
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112 | drawFeature: function(geometry) { |
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113 | var feature = new OpenLayers.Feature.Vector(geometry); |
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114 | var proceed = this.layer.events.triggerEvent( |
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115 | "sketchcomplete", {feature: feature} |
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116 | ); |
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117 | if(proceed !== false) { |
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118 | feature.state = OpenLayers.State.INSERT; |
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119 | this.layer.addFeatures([feature]); |
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120 | this.featureAdded(feature); |
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121 | this.events.triggerEvent("featureadded",{feature : feature}); |
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122 | } |
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123 | }, |
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124 | |
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125 | CLASS_NAME: "OpenLayers.Control.DrawFeature" |
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126 | }); |
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