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 | * @requires OpenLayers/Format/WMC/v1.js |
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8 | */ |
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9 | |
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10 | /** |
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11 | * Class: OpenLayers.Format.WMC.v1_1_0 |
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12 | * Read and write WMC version 1.1.0. |
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13 | * |
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14 | * Differences between 1.1.0 and 1.0.0: |
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15 | * - 1.1.0 Layers have optional sld:MinScaleDenominator and |
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16 | * sld:MaxScaleDenominator |
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17 | * |
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18 | * Inherits from: |
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19 | * - <OpenLayers.Format.WMC.v1> |
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20 | */ |
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21 | OpenLayers.Format.WMC.v1_1_0 = OpenLayers.Class( |
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22 | OpenLayers.Format.WMC.v1, { |
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23 | |
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24 | /** |
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25 | * Constant: VERSION |
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26 | * {String} 1.1.0 |
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27 | */ |
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28 | VERSION: "1.1.0", |
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29 | |
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30 | /** |
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31 | * Property: schemaLocation |
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32 | * {String} http://www.opengis.net/context |
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33 | * http://schemas.opengis.net/context/1.1.0/context.xsd |
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34 | */ |
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35 | schemaLocation: "http://www.opengis.net/context http://schemas.opengis.net/context/1.1.0/context.xsd", |
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36 | |
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37 | /** |
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38 | * Constructor: OpenLayers.Format.WMC.v1_1_0 |
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39 | * Instances of this class are not created directly. Use the |
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40 | * <OpenLayers.Format.WMC> constructor instead. |
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41 | * |
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42 | * Parameters: |
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43 | * options - {Object} An optional object whose properties will be set on |
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44 | * this instance. |
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45 | */ |
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46 | initialize: function(options) { |
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47 | OpenLayers.Format.WMC.v1.prototype.initialize.apply( |
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48 | this, [options] |
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49 | ); |
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50 | }, |
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51 | |
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52 | /** |
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53 | * Method: read_sld_MinScaleDenominator |
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54 | * Read a sld:MinScaleDenominator node. |
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55 | * |
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56 | * Parameters: |
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57 | * layerContext - {Object} An object representing a layer. |
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58 | * node - {Element} An element node. |
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59 | */ |
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60 | read_sld_MinScaleDenominator: function(layerContext, node) { |
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61 | var minScaleDenominator = parseFloat(this.getChildValue(node)); |
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62 | if (minScaleDenominator > 0) { |
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63 | layerContext.maxScale = minScaleDenominator; |
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64 | } |
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65 | }, |
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66 | |
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67 | /** |
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68 | * Method: read_sld_MaxScaleDenominator |
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69 | * Read a sld:MaxScaleDenominator node. |
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70 | * |
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71 | * Parameters: |
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72 | * layerContext - {Object} An object representing a layer. |
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73 | * node - {Element} An element node. |
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74 | */ |
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75 | read_sld_MaxScaleDenominator: function(layerContext, node) { |
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76 | layerContext.minScale = parseFloat(this.getChildValue(node)); |
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77 | }, |
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78 | |
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79 | /** |
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80 | * Method: write_wmc_Layer |
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81 | * Create a Layer node given a layer context object. This method adds |
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82 | * elements specific to version 1.1.0. |
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83 | * |
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84 | * Parameters: |
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85 | * context - {Object} A layer context object.} |
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86 | * |
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87 | * Returns: |
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88 | * {Element} A WMC Layer element node. |
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89 | */ |
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90 | write_wmc_Layer: function(context) { |
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91 | var node = OpenLayers.Format.WMC.v1.prototype.write_wmc_Layer.apply( |
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92 | this, [context] |
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93 | ); |
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94 | |
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95 | // min/max scale denominator elements go before the 4th element in v1 |
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96 | if(context.maxScale) { |
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97 | var minSD = this.createElementNS( |
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98 | this.namespaces.sld, "sld:MinScaleDenominator" |
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99 | ); |
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100 | minSD.appendChild(this.createTextNode(context.maxScale.toPrecision(16))); |
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101 | node.appendChild(minSD); |
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102 | } |
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103 | |
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104 | if(context.minScale) { |
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105 | var maxSD = this.createElementNS( |
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106 | this.namespaces.sld, "sld:MaxScaleDenominator" |
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107 | ); |
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108 | maxSD.appendChild(this.createTextNode(context.minScale.toPrecision(16))); |
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109 | node.appendChild(maxSD); |
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110 | } |
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111 | |
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112 | // optional FormatList element |
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113 | node.appendChild(this.write_wmc_FormatList(context)); |
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114 | |
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115 | // optional StyleList element |
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116 | node.appendChild(this.write_wmc_StyleList(context)); |
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117 | |
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118 | // OpenLayers specific properties go in an Extension element |
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119 | node.appendChild(this.write_wmc_LayerExtension(context)); |
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120 | |
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121 | return node; |
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122 | |
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123 | }, |
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124 | |
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125 | CLASS_NAME: "OpenLayers.Format.WMC.v1_1_0" |
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126 | |
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127 | }); |
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