Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/MeasureControl.java @ 1297:887eb0cd7dfc

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Bugfix: #375 Limit the number of fractions in the result of the measure controls (in the map). flys-client/trunk@2918 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 10 Oct 2011 09:31:08 +0000
parents 22dc88b17253
children 6890e1041eac
rev   line source
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1 package de.intevation.flys.client.client.ui.map;
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2
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3 import com.google.gwt.core.client.GWT;
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4 import com.google.gwt.i18n.client.NumberFormat;
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5
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6 import com.smartgwt.client.types.SelectionType;
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7 import com.smartgwt.client.widgets.ImgButton;
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8 import com.smartgwt.client.widgets.Label;
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9 import com.smartgwt.client.widgets.events.ClickEvent;
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10 import com.smartgwt.client.widgets.events.ClickHandler;
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11 import com.smartgwt.client.widgets.layout.HLayout;
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12
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13 import org.gwtopenmaps.openlayers.client.control.Measure;
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14 import org.gwtopenmaps.openlayers.client.event.MeasureEvent;
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15 import org.gwtopenmaps.openlayers.client.event.MeasureListener;
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16 import org.gwtopenmaps.openlayers.client.event.MeasurePartialListener;
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17 import org.gwtopenmaps.openlayers.client.handler.PathHandler;
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18 import org.gwtopenmaps.openlayers.client.handler.PolygonHandler;
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19
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20 import de.intevation.flys.client.client.FLYSConstants;
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21 import de.intevation.flys.client.client.utils.EnableDisableCmd;
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22
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23
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24 public class MeasureControl extends HLayout {
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25
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26 public static final String NUMBER_FORMAT_PATTERN = "#.##";
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27
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28 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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29
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30 protected FloodMap floodMap;
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31
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32 protected Measure measureLine;
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33 protected Measure measurePolygon;
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34
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35 protected ImgButton measureLineButton;
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36 protected ImgButton measurePolyButton;
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37 protected Label label;
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38
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39 protected NumberFormat formatter;
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40
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41
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42 public MeasureControl(FloodMap floodMap, EnableDisableCmd cmd) {
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43 this.floodMap = floodMap;
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44
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45 measureLineButton = createMeasureLineControl(cmd);
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46 measurePolyButton = createMeasurePolyControl(cmd);
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47
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48 formatter = NumberFormat.getFormat(NUMBER_FORMAT_PATTERN);
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49
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50 label = new Label();
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51
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52 initLayout();
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53 }
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54
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55
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56 protected void initLayout() {
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57 setMembersMargin(2);
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58 addMember(measureLineButton);
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59 addMember(measurePolyButton);
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60 addMember(label);
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61 }
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62
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63
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64 protected ImgButton createMeasureLineControl(final EnableDisableCmd cmd) {
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65 measureLine = new Measure(new PathHandler());
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66 measureLine.setPersist(true);
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67 measureLine.addMeasureListener(new MeasureListener() {
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68 public void onMeasure(MeasureEvent e) {
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69 updateMeasure(e.getMeasure(), e.getUnits());
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70 }
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71 });
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72 measureLine.addMeasurePartialListener(new MeasurePartialListener() {
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73 public void onMeasurePartial(MeasureEvent e) {
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74 updateMeasure(e.getMeasure(), e.getUnits());
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75 }
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76 });
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77
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78 floodMap.getMap().addControl(measureLine);
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79
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80 final ImgButton btn = new ImgButton();
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81 String baseUrl = GWT.getHostPageBaseURL();
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82 btn.setSrc(baseUrl + MSG.measureLine());
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83 btn.setActionType(SelectionType.CHECKBOX);
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84 btn.setSize(20);
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85 btn.setShowRollOver(false);
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86 btn.setSelected(false);
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87 btn.setTooltip(MSG.measureDistance());
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88 btn.addClickHandler(new ClickHandler() {
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89 public void onClick(ClickEvent e) {
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90 if (btn.isSelected()) {
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91 cmd.enable();
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92 activateMeasurePolygon(false);
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93 activateMeasureLine(true);
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94 }
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95 else {
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96 cmd.disable();
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97 activateMeasureLine(false);
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98 }
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99 }
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100 });
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101
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102 return btn;
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103 }
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104
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105
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106 protected ImgButton createMeasurePolyControl(final EnableDisableCmd cmd) {
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107 measurePolygon = new Measure(new PolygonHandler());
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108 measurePolygon.setPersist(true);
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109 measurePolygon.addMeasureListener(new MeasureListener() {
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110 public void onMeasure(MeasureEvent e) {
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111 updateMeasure(e.getMeasure(), e.getUnits());
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112 }
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113 });
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114 measurePolygon.addMeasurePartialListener(new MeasurePartialListener() {
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115 public void onMeasurePartial(MeasureEvent e) {
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116 updateMeasure(e.getMeasure(), e.getUnits());
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117 }
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118 });
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119
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120 floodMap.getMap().addControl(measurePolygon);
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121
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122 final ImgButton btn = new ImgButton();
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123 String baseUrl = GWT.getHostPageBaseURL();
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124 btn.setSrc(baseUrl + MSG.measurePolygon());
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125 btn.setActionType(SelectionType.CHECKBOX);
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126 btn.setSize(20);
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127 btn.setShowRollOver(false);
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128 btn.setSelected(false);
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129 btn.setTooltip(MSG.measureArea());
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130 btn.addClickHandler(new ClickHandler() {
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131 public void onClick(ClickEvent e) {
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132 if (btn.isSelected()) {
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133 cmd.enable();
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134 activateMeasureLine(false);
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135 activateMeasurePolygon(true);
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136 }
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137 else {
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138 cmd.disable();
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139 activateMeasurePolygon(false);
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140 }
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141 }
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142 });
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143
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144 return btn;
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145 }
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146
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147
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148 protected void clearMeasure() {
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149 label.setContents("");
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150 }
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151
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152
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153 protected void updateMeasure(float value, String unit) {
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154 label.setContents(formatter.format(value) + " " + unit);
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155 }
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156
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157
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158 public void activate(boolean activate) {
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159 if (!activate) {
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160 clearMeasure();
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161 activateMeasureLine(activate);
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162 activateMeasurePolygon(activate);
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163 }
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164 }
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165
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166
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167 protected void activateMeasureLine(boolean activate) {
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168 if (activate) {
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169 clearMeasure();
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170 measureLineButton.select();
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171 measureLine.activate();
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172 }
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173 else {
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174 measureLineButton.deselect();
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175 measureLine.deactivate();
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176 }
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177 }
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178
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179
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180 protected void activateMeasurePolygon(boolean activate) {
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181 if (activate) {
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182 clearMeasure();
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183 measurePolyButton.select();
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184 measurePolygon.activate();
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185 }
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186 else {
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187 measurePolyButton.deselect();
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188 measurePolygon.deactivate();
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189 }
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190 }
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191 }
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192 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org