Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/map/MeasureControl.java @ 5861:172338b1407f

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GWT client: Added copyright header.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:30:15 +0200
parents 5aa05a7a34b7
children ea9eef426962
rev   line source
5861
172338b1407f GWT client: Added copyright header.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.client.ui.map;
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10
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11 import com.google.gwt.core.client.GWT;
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12 import com.google.gwt.i18n.client.NumberFormat;
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13
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14 import com.smartgwt.client.types.SelectionType;
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15 import com.smartgwt.client.widgets.ImgButton;
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16 import com.smartgwt.client.widgets.Label;
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17 import com.smartgwt.client.widgets.events.ClickEvent;
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18 import com.smartgwt.client.widgets.events.ClickHandler;
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19 import com.smartgwt.client.widgets.layout.HLayout;
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20
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21 import org.gwtopenmaps.openlayers.client.control.Measure;
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22 import org.gwtopenmaps.openlayers.client.event.MeasureEvent;
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23 import org.gwtopenmaps.openlayers.client.event.MeasureListener;
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24 import org.gwtopenmaps.openlayers.client.event.MeasurePartialListener;
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25 import org.gwtopenmaps.openlayers.client.handler.PathHandler;
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26 import org.gwtopenmaps.openlayers.client.handler.PolygonHandler;
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27
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28 import org.dive4elements.river.client.client.FLYSConstants;
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29 import org.dive4elements.river.client.client.utils.EnableDisableCmd;
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30
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31
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32 public class MeasureControl extends HLayout {
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33
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34 public static final String NUMBER_FORMAT_PATTERN = "#.##";
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35
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36 public static final String AREA_UNIT = "ha";
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37 public static final int AREA_FACTOR_M = 10000;
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38 public static final int AREA_FACTOR_KM = 100;
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39
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40 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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41
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42 protected FloodMap floodMap;
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43
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44 protected Measure measureLine;
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45 protected Measure measurePolygon;
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46
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47 protected ImgButton measureLineButton;
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48 protected ImgButton measurePolyButton;
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49 protected Label label;
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50
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51 protected NumberFormat formatter;
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52
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53
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54 public MeasureControl(FloodMap floodMap, EnableDisableCmd cmd) {
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55 this.floodMap = floodMap;
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56
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57 measureLineButton = createMeasureLineControl(cmd);
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58 measurePolyButton = createMeasurePolyControl(cmd);
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59
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60 formatter = NumberFormat.getFormat(NUMBER_FORMAT_PATTERN);
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61
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62 label = new Label();
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63
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64 initLayout();
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65 }
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66
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67
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68 protected void initLayout() {
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69 setWidth(100);
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70 setMembersMargin(2);
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71
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72 label.setWidth(75);
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73
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74 addMember(measureLineButton);
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75 addMember(measurePolyButton);
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76 addMember(label);
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77 }
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78
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79
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80 protected ImgButton createMeasureLineControl(final EnableDisableCmd cmd) {
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81 measureLine = new Measure(new PathHandler());
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82 measureLine.setPersist(true);
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83 measureLine.addMeasureListener(new MeasureListener() {
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84 public void onMeasure(MeasureEvent e) {
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85 updateMeasure(e.getMeasure(), e.getUnits());
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86 }
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87 });
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88 measureLine.addMeasurePartialListener(new MeasurePartialListener() {
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89 public void onMeasurePartial(MeasureEvent e) {
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90 updateMeasure(e.getMeasure(), e.getUnits());
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91 }
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92 });
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93
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94 floodMap.getMap().addControl(measureLine);
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95
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96 final ImgButton btn = new ImgButton();
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97 String baseUrl = GWT.getHostPageBaseURL();
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98 btn.setSrc(baseUrl + MSG.measureLine());
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99 btn.setActionType(SelectionType.CHECKBOX);
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100 btn.setSize(20);
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101 btn.setShowRollOver(false);
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102 btn.setShowRollOverIcon(false);
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103 btn.setSelected(false);
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104 btn.setTooltip(MSG.measureDistance());
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105 btn.addClickHandler(new ClickHandler() {
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106 public void onClick(ClickEvent e) {
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107 if (btn.isSelected()) {
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108 cmd.enable();
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109 activateMeasurePolygon(false);
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110 activateMeasureLine(true);
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111 }
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112 else {
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113 cmd.disable();
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114 activateMeasureLine(false);
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115 }
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116 }
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117 });
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118
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119 return btn;
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120 }
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121
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122
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123 protected ImgButton createMeasurePolyControl(final EnableDisableCmd cmd) {
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124 measurePolygon = new Measure(new PolygonHandler());
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125 measurePolygon.setPersist(true);
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126 measurePolygon.addMeasureListener(new MeasureListener() {
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127 public void onMeasure(MeasureEvent e) {
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128 updateMeasureArea(e.getMeasure(), e.getUnits());
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129 }
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130 });
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131 measurePolygon.addMeasurePartialListener(new MeasurePartialListener() {
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132 public void onMeasurePartial(MeasureEvent e) {
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133 updateMeasureArea(e.getMeasure(), e.getUnits());
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134 }
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135 });
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136
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137 floodMap.getMap().addControl(measurePolygon);
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138
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139 final ImgButton btn = new ImgButton();
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140 String baseUrl = GWT.getHostPageBaseURL();
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141 btn.setSrc(baseUrl + MSG.measurePolygon());
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142 btn.setActionType(SelectionType.CHECKBOX);
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143 btn.setSize(20);
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144 btn.setShowRollOver(false);
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145 btn.setShowRollOverIcon(false);
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146 btn.setSelected(false);
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147 btn.setTooltip(MSG.measureArea());
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148 btn.addClickHandler(new ClickHandler() {
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149 public void onClick(ClickEvent e) {
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150 if (btn.isSelected()) {
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151 cmd.enable();
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152 activateMeasureLine(false);
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153 activateMeasurePolygon(true);
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154 }
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155 else {
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156 cmd.disable();
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157 activateMeasurePolygon(false);
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158 }
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159 }
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160 });
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161
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162 return btn;
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163 }
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164
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165
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166 protected void clearMeasure() {
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167 label.setContents("");
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168 }
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169
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170
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171 protected void updateMeasure(float value, String unit) {
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172 label.setContents(formatter.format(value) + " " + unit);
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173 }
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174
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175
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176 protected void updateMeasureArea(float value, String unit) {
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177 float ha = value;
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178 String ha_unit = unit;
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179
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180 if (unit.equals("m")) {
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181 ha = (float) value / AREA_FACTOR_M;
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182 ha_unit = AREA_UNIT;
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183 }
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184 else if (unit.equals("km")) {
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185 ha = (float) value * AREA_FACTOR_KM;
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186 ha_unit = AREA_UNIT;
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187 }
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188
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189 label.setContents(formatter.format(ha) + " " + ha_unit);
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190 }
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191
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192
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193 public void activate(boolean activate) {
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194 if (!activate) {
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195 clearMeasure();
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196 activateMeasureLine(activate);
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197 activateMeasurePolygon(activate);
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198 }
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199 }
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200
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201
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202 protected void activateMeasureLine(boolean activate) {
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203 if (activate) {
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204 clearMeasure();
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205 measureLineButton.select();
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206 measureLine.activate();
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207 }
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208 else {
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209 measureLineButton.deselect();
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210 measureLine.deactivate();
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211 }
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212 }
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213
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214
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215 protected void activateMeasurePolygon(boolean activate) {
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216 if (activate) {
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217 clearMeasure();
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218 measurePolyButton.select();
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219 measurePolygon.activate();
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220 }
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221 else {
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222 measurePolyButton.deselect();
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223 measurePolygon.deactivate();
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224 }
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225 }
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226 }
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227 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org