Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/MeasureControl.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents a1ff911e8365
children
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 public static final String AREA_UNIT = "ha";
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29 public static final int AREA_FACTOR_M = 10000;
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30 public static final int AREA_FACTOR_KM = 100;
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31
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32 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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33
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34 protected FloodMap floodMap;
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35
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36 protected Measure measureLine;
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37 protected Measure measurePolygon;
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38
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39 protected ImgButton measureLineButton;
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40 protected ImgButton measurePolyButton;
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41 protected Label label;
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42
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43 protected NumberFormat formatter;
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44
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45
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46 public MeasureControl(FloodMap floodMap, EnableDisableCmd cmd) {
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47 this.floodMap = floodMap;
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48
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49 measureLineButton = createMeasureLineControl(cmd);
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50 measurePolyButton = createMeasurePolyControl(cmd);
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51
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52 formatter = NumberFormat.getFormat(NUMBER_FORMAT_PATTERN);
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53
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54 label = new Label();
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55
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56 initLayout();
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57 }
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58
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59
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60 protected void initLayout() {
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61 setWidth(100);
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62 setMembersMargin(2);
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63
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64 label.setWidth(75);
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65
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66 addMember(measureLineButton);
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67 addMember(measurePolyButton);
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68 addMember(label);
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69 }
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70
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71
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72 protected ImgButton createMeasureLineControl(final EnableDisableCmd cmd) {
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73 measureLine = new Measure(new PathHandler());
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74 measureLine.setPersist(true);
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75 measureLine.addMeasureListener(new MeasureListener() {
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76 public void onMeasure(MeasureEvent e) {
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77 updateMeasure(e.getMeasure(), e.getUnits());
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78 }
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79 });
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80 measureLine.addMeasurePartialListener(new MeasurePartialListener() {
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81 public void onMeasurePartial(MeasureEvent e) {
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82 updateMeasure(e.getMeasure(), e.getUnits());
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83 }
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84 });
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85
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86 floodMap.getMap().addControl(measureLine);
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87
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88 final ImgButton btn = new ImgButton();
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89 String baseUrl = GWT.getHostPageBaseURL();
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90 btn.setSrc(baseUrl + MSG.measureLine());
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91 btn.setActionType(SelectionType.CHECKBOX);
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92 btn.setSize(20);
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93 btn.setShowRollOver(false);
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94 btn.setShowRollOverIcon(false);
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95 btn.setSelected(false);
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96 btn.setTooltip(MSG.measureDistance());
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97 btn.addClickHandler(new ClickHandler() {
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98 public void onClick(ClickEvent e) {
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99 if (btn.isSelected()) {
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100 cmd.enable();
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101 activateMeasurePolygon(false);
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102 activateMeasureLine(true);
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103 }
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104 else {
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105 cmd.disable();
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106 activateMeasureLine(false);
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107 }
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108 }
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109 });
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110
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111 return btn;
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112 }
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113
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114
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115 protected ImgButton createMeasurePolyControl(final EnableDisableCmd cmd) {
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116 measurePolygon = new Measure(new PolygonHandler());
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117 measurePolygon.setPersist(true);
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118 measurePolygon.addMeasureListener(new MeasureListener() {
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119 public void onMeasure(MeasureEvent e) {
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120 updateMeasureArea(e.getMeasure(), e.getUnits());
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121 }
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122 });
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123 measurePolygon.addMeasurePartialListener(new MeasurePartialListener() {
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124 public void onMeasurePartial(MeasureEvent e) {
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125 updateMeasureArea(e.getMeasure(), e.getUnits());
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126 }
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127 });
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128
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129 floodMap.getMap().addControl(measurePolygon);
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130
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131 final ImgButton btn = new ImgButton();
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132 String baseUrl = GWT.getHostPageBaseURL();
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133 btn.setSrc(baseUrl + MSG.measurePolygon());
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134 btn.setActionType(SelectionType.CHECKBOX);
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135 btn.setSize(20);
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136 btn.setShowRollOver(false);
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137 btn.setShowRollOverIcon(false);
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138 btn.setSelected(false);
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139 btn.setTooltip(MSG.measureArea());
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140 btn.addClickHandler(new ClickHandler() {
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141 public void onClick(ClickEvent e) {
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142 if (btn.isSelected()) {
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143 cmd.enable();
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144 activateMeasureLine(false);
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145 activateMeasurePolygon(true);
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146 }
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147 else {
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148 cmd.disable();
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149 activateMeasurePolygon(false);
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150 }
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151 }
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152 });
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153
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154 return btn;
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155 }
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156
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157
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158 protected void clearMeasure() {
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159 label.setContents("");
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160 }
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161
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162
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163 protected void updateMeasure(float value, String unit) {
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164 label.setContents(formatter.format(value) + " " + unit);
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165 }
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166
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167
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168 protected void updateMeasureArea(float value, String unit) {
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169 float ha = value;
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170 String ha_unit = unit;
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171
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172 if (unit.equals("m")) {
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173 ha = (float) value / AREA_FACTOR_M;
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174 ha_unit = AREA_UNIT;
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175 }
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176 else if (unit.equals("km")) {
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177 ha = (float) value * AREA_FACTOR_KM;
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178 ha_unit = AREA_UNIT;
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179 }
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180
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181 label.setContents(formatter.format(ha) + " " + ha_unit);
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182 }
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183
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184
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185 public void activate(boolean activate) {
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186 if (!activate) {
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187 clearMeasure();
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188 activateMeasureLine(activate);
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189 activateMeasurePolygon(activate);
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190 }
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191 }
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192
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193
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194 protected void activateMeasureLine(boolean activate) {
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195 if (activate) {
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196 clearMeasure();
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197 measureLineButton.select();
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198 measureLine.activate();
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199 }
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200 else {
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201 measureLineButton.deselect();
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202 measureLine.deactivate();
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203 }
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204 }
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205
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206
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207 protected void activateMeasurePolygon(boolean activate) {
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208 if (activate) {
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209 clearMeasure();
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210 measurePolyButton.select();
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211 measurePolygon.activate();
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212 }
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213 else {
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214 measurePolyButton.deselect();
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215 measurePolygon.deactivate();
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216 }
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217 }
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218 }
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219 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org