Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/MeasureControl.java @ 802:d45ad7fd3027

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Added map tools to measure lines and polygons. flys-client/trunk@2323 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 12 Jul 2011 15:04:50 +0000
parents
children 22dc88b17253
rev   line source
802
d45ad7fd3027 Added map tools to measure lines and polygons.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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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
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5 import com.smartgwt.client.types.SelectionType;
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6 import com.smartgwt.client.widgets.ImgButton;
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7 import com.smartgwt.client.widgets.Label;
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8 import com.smartgwt.client.widgets.events.ClickEvent;
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9 import com.smartgwt.client.widgets.events.ClickHandler;
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10 import com.smartgwt.client.widgets.layout.HLayout;
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11
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12 import org.gwtopenmaps.openlayers.client.control.Measure;
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13 import org.gwtopenmaps.openlayers.client.event.MeasureEvent;
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14 import org.gwtopenmaps.openlayers.client.event.MeasureListener;
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15 import org.gwtopenmaps.openlayers.client.event.MeasurePartialListener;
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16 import org.gwtopenmaps.openlayers.client.handler.PathHandler;
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17 import org.gwtopenmaps.openlayers.client.handler.PolygonHandler;
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18
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19 import de.intevation.flys.client.client.FLYSConstants;
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20 import de.intevation.flys.client.client.utils.EnableDisableCmd;
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21
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22
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23 public class MeasureControl extends HLayout {
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24
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25 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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26
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27 protected FloodMap floodMap;
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28
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29 protected Measure measureLine;
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30 protected Measure measurePolygon;
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31
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32 protected ImgButton measureLineButton;
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33 protected ImgButton measurePolyButton;
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34 protected Label label;
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35
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36
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37 public MeasureControl(FloodMap floodMap, EnableDisableCmd cmd) {
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38 this.floodMap = floodMap;
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39
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40 measureLineButton = createMeasureLineControl(cmd);
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41 measurePolyButton = createMeasurePolyControl(cmd);
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42
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43 label = new Label();
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44
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45 initLayout();
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46 }
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47
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48
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49 protected void initLayout() {
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50 setMembersMargin(2);
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51 addMember(measureLineButton);
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52 addMember(measurePolyButton);
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53 addMember(label);
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54 }
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55
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56
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57 protected ImgButton createMeasureLineControl(final EnableDisableCmd cmd) {
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58 measureLine = new Measure(new PathHandler());
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59 measureLine.setPersist(true);
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60 measureLine.addMeasureListener(new MeasureListener() {
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61 public void onMeasure(MeasureEvent e) {
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62 updateMeasure(e.getMeasure(), e.getUnits());
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63 }
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64 });
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65 measureLine.addMeasurePartialListener(new MeasurePartialListener() {
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66 public void onMeasurePartial(MeasureEvent e) {
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67 updateMeasure(e.getMeasure(), e.getUnits());
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68 }
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69 });
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70
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71 floodMap.getMap().addControl(measureLine);
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72
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73 final ImgButton btn = new ImgButton();
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74 String baseUrl = GWT.getHostPageBaseURL();
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75 btn.setSrc(baseUrl + MSG.measureLine());
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76 btn.setActionType(SelectionType.CHECKBOX);
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77 btn.setSize(20);
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78 btn.setShowRollOver(false);
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79 btn.setSelected(false);
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80 btn.addClickHandler(new ClickHandler() {
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81 public void onClick(ClickEvent e) {
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82 if (btn.isSelected()) {
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83 cmd.enable();
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84 activateMeasurePolygon(false);
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85 activateMeasureLine(true);
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86 }
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87 else {
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88 cmd.disable();
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89 activateMeasureLine(false);
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90 }
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91 }
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92 });
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93
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94 return btn;
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95 }
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96
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97
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98 protected ImgButton createMeasurePolyControl(final EnableDisableCmd cmd) {
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99 measurePolygon = new Measure(new PolygonHandler());
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100 measurePolygon.setPersist(true);
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101 measurePolygon.addMeasureListener(new MeasureListener() {
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102 public void onMeasure(MeasureEvent e) {
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103 updateMeasure(e.getMeasure(), e.getUnits());
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104 }
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105 });
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106 measurePolygon.addMeasurePartialListener(new MeasurePartialListener() {
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107 public void onMeasurePartial(MeasureEvent e) {
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108 updateMeasure(e.getMeasure(), e.getUnits());
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109 }
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110 });
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111
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112 floodMap.getMap().addControl(measurePolygon);
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113
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114 final ImgButton btn = new ImgButton();
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115 String baseUrl = GWT.getHostPageBaseURL();
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116 btn.setSrc(baseUrl + MSG.measurePolygon());
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117 btn.setActionType(SelectionType.CHECKBOX);
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118 btn.setSize(20);
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119 btn.setShowRollOver(false);
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120 btn.setSelected(false);
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121 btn.addClickHandler(new ClickHandler() {
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122 public void onClick(ClickEvent e) {
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123 if (btn.isSelected()) {
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124 cmd.enable();
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125 activateMeasureLine(false);
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126 activateMeasurePolygon(true);
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127 }
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128 else {
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129 cmd.disable();
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130 activateMeasurePolygon(false);
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131 }
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132 }
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133 });
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134
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135 return btn;
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136 }
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137
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138
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139 protected void clearMeasure() {
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140 label.setContents("");
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141 }
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142
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143
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144 protected void updateMeasure(float value, String unit) {
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145 label.setContents(String.valueOf(value) + " " + unit);
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146 }
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147
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148
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149 public void activate(boolean activate) {
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150 if (!activate) {
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151 clearMeasure();
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152 activateMeasureLine(activate);
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153 activateMeasurePolygon(activate);
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154 }
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155 }
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156
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157
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158 protected void activateMeasureLine(boolean activate) {
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159 if (activate) {
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160 clearMeasure();
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161 measureLineButton.select();
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162 measureLine.activate();
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163 }
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164 else {
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165 measureLineButton.deselect();
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166 measureLine.deactivate();
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167 }
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168 }
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169
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170
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171 protected void activateMeasurePolygon(boolean activate) {
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172 if (activate) {
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173 clearMeasure();
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174 measurePolyButton.select();
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175 measurePolygon.activate();
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176 }
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177 else {
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178 measurePolyButton.deselect();
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179 measurePolygon.deactivate();
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180 }
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181 }
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182 }
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183 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org