Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/MapToolbar.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 95cc560ce7c4
children 1b9b7e9ab219
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
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5 import com.smartgwt.client.types.SelectionType;
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6 import com.smartgwt.client.widgets.Canvas;
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7 import com.smartgwt.client.widgets.ImgButton;
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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.Map;
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13 import org.gwtopenmaps.openlayers.client.control.DragPan;
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14 import org.gwtopenmaps.openlayers.client.control.SelectFeature;
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15 import org.gwtopenmaps.openlayers.client.control.SelectFeatureOptions;
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16 import org.gwtopenmaps.openlayers.client.control.ZoomBox;
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17 import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
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18 import org.gwtopenmaps.openlayers.client.layer.Vector;
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19 import org.gwtopenmaps.openlayers.client.util.Attributes;
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20
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21 import de.intevation.flys.client.client.FLYSConstants;
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22 import de.intevation.flys.client.client.utils.EnableDisableCmd;
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23
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24
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25 /**
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26 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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27 */
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28 public class MapToolbar extends HLayout {
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29
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30 public static final String MARK_TO_DELETE = "mark.delete";
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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 protected DragPan pan;
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36 protected ZoomBox zoomBox;
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37 protected SelectFeature selectFeature;
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38
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39 protected ImgButton zoomToMaxButton;
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40 protected ImgButton zoomBoxButton;
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41 protected ImgButton zoomOutButton;
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42 protected ImgButton panButton;
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43 protected ImgButton selectButton;
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44 protected ImgButton removeButton;
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45
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46 protected DrawControl drawControl;
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47 protected MeasureControl measureControl;
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48
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49 protected Canvas position;
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50
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51
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52 public MapToolbar(FloodMap floodMap, Canvas wrapper) {
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53 super();
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54
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55 setWidth100();
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56 setHeight(30);
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57 setMembersMargin(10);
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58 setPadding(5);
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59 setBorder("1px solid black");
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60
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61 this.floodMap = floodMap;
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62
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63 Canvas spacer = new Canvas();
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64 spacer.setWidth("*");
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65
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66 zoomToMaxButton = createMaxExtentControl();
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67 zoomBoxButton = createZoomBoxControl();
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68 zoomOutButton = createZoomOutControl();
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69 panButton = createPanControl();
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70 position = createMousePosition(wrapper);
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71 drawControl = createDrawControl();
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72 selectButton = createSelectFeatureControl();
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73 removeButton = createRemoveFeatureControl();
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74 measureControl = createMeasureControl();
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75
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76 addMember(zoomToMaxButton);
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77 addMember(zoomBoxButton);
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78 addMember(zoomOutButton);
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79 addMember(panButton);
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80 addMember(drawControl);
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81 addMember(selectButton);
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82 addMember(removeButton);
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83 addMember(measureControl);
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84 addMember(spacer);
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85 addMember(position);
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86 }
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87
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88
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89 protected Map getMap() {
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90 return floodMap.getMap();
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91 }
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93
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94 protected void activatePan(boolean activate) {
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95 if (activate) {
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96 panButton.select();
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97 pan.activate();
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98 }
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99 else {
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100 panButton.deselect();
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101 pan.deactivate();
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102 }
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103 }
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105
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106 protected void activateZoomBox(boolean activate) {
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107 if (activate) {
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108 zoomBoxButton.select();
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109 zoomBox.activate();
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110 }
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111 else {
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112 zoomBoxButton.deselect();
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113 zoomBox.deactivate();
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114 }
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115 }
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117
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118 protected void activateDrawFeature(boolean activate) {
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119 drawControl.activate(activate);
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120 }
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121
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122
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123 protected void activateSelectFeature(boolean activate) {
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124 if (activate) {
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125 selectButton.select();
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126 selectFeature.activate();
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127 }
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128 else {
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129 selectButton.deselect();
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130 selectFeature.deactivate();
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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 protected void activateMeasureControl(boolean activate) {
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136 measureControl.activate(activate);
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137 }
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138
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139
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140 protected ImgButton createButton(String img, ClickHandler handler) {
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141 ImgButton btn = new ImgButton();
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142
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143 String baseUrl = GWT.getHostPageBaseURL();
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144 btn.setSrc(baseUrl + img);
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145 btn.setWidth(20);
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146 btn.setHeight(20);
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147 btn.setShowDown(false);
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148 btn.setShowRollOver(false);
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149 btn.setShowDisabled(false);
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150 btn.setShowDisabledIcon(true);
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151 btn.setShowDownIcon(false);
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152 btn.setShowFocusedIcon(false);
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153
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154 if (handler != null) {
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155 btn.addClickHandler(handler);
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156 }
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157
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158 return btn;
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159 }
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160
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161
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162 protected ImgButton createToggleButton(
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163 String img,
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164 final EnableDisableCmd cmd
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165 ) {
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166 final ImgButton btn = new ImgButton();
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167
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168 String baseUrl = GWT.getHostPageBaseURL();
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169 btn.setSrc(baseUrl + img);
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170 btn.setActionType(SelectionType.CHECKBOX);
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171 btn.setSize(20);
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172 btn.setShowRollOver(false);
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173 btn.setSelected(false);
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174 btn.addClickHandler(new ClickHandler() {
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175 public void onClick(ClickEvent e) {
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176 if (btn.isSelected()) {
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177 cmd.enable();
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178 }
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179 else {
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180 cmd.disable();
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181 }
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182 }
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183 });
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184
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185 return btn;
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186 }
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187
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188
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189 protected ImgButton createMaxExtentControl() {
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190 ImgButton zoomToMax = createButton(MSG.zoom_all(), new ClickHandler() {
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191 public void onClick(ClickEvent event) {
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192 floodMap.getMap().zoomToMaxExtent();
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193 }
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194 });
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195
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196 return zoomToMax;
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197 }
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198
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199
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200 protected ImgButton createZoomBoxControl() {
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201 zoomBox = new ZoomBox();
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202
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203 EnableDisableCmd cmd = new EnableDisableCmd() {
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204 public void enable() {
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205 activateZoomBox(true);
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206 activatePan(false);
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207 activateDrawFeature(false);
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208 activateSelectFeature(false);
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209 activateMeasureControl(false);
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210 }
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211
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212 public void disable() {
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213 activateZoomBox(false);
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214 }
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215 };
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216
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217 ImgButton button = createToggleButton(MSG.zoom_in(), cmd);
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218 Map map = getMap();
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219 map.addControl(zoomBox);
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220
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221 return button;
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222 }
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223
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224
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225 protected ImgButton createZoomOutControl() {
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226 ImgButton zoomOut = createButton(MSG.zoom_out(), new ClickHandler() {
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227 public void onClick(ClickEvent event) {
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228 Map map = floodMap.getMap();
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229 int level = map.getZoom();
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230
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231 if (level > 1) {
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232 map.zoomTo(level-1);
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233 }
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234 }
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235 });
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236
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237 return zoomOut;
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238 }
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239
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240
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241 protected ImgButton createPanControl() {
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242 pan = new DragPan();
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243 getMap().addControl(pan);
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244
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245 EnableDisableCmd cmd = new EnableDisableCmd() {
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246 public void enable() {
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247 activateZoomBox(false);
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248 activatePan(true);
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249 activateDrawFeature(false);
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250 activateSelectFeature(false);
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251 activateMeasureControl(false);
800
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252 }
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253
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254 public void disable() {
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255 activatePan(false);
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256 }
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257 };
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258
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259 final ImgButton button = createToggleButton(MSG.pan(), cmd);
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260
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261 return button;
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262 }
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263
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264
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265 protected DrawControl createDrawControl() {
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266 EnableDisableCmd cmd = new EnableDisableCmd() {
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267 public void enable() {
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268 activateZoomBox(false);
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269 activatePan(false);
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270 activateDrawFeature(true);
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271 activateSelectFeature(false);
802
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272 activateMeasureControl(false);
800
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273 }
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274
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275 public void disable() {
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276 activateDrawFeature(false);
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277 }
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278 };
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279 return new DrawControl(getMap(), floodMap.getBarrierLayer(), cmd);
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280 }
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281
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282
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283 protected ImgButton createSelectFeatureControl() {
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284 SelectFeatureOptions opts = new SelectFeatureOptions();
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285
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286 // VectorFeatures selected by the SelectFeature control are manually
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287 // marked with the string "mark.delete". The control to remove selected
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288 // features makes use of this string to determine if the feature should
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289 // be deleted (is marked) or not. Actually, we would like to use the
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290 // OpenLayers native mechanism to select features, but for some reason
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291 // this doesn't work here. After a feature has been selected, the layer
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292 // still has no selected features.
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293 opts.onSelect(new SelectFeature.SelectFeatureListener() {
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294 public void onFeatureSelected(VectorFeature feature) {
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295 Attributes attr = feature.getAttributes();
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296 attr.setAttribute(MARK_TO_DELETE, 1);
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297 }
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298 });
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299
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300 opts.onUnSelect(new SelectFeature.UnselectFeatureListener() {
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301 public void onFeatureUnselected(VectorFeature feature) {
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302 Attributes attr = feature.getAttributes();
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303 attr.setAttribute(MARK_TO_DELETE, 0);
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304 }
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305 });
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306
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307 selectFeature = new SelectFeature(floodMap.getBarrierLayer(), opts);
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308 getMap().addControl(selectFeature);
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309
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310 EnableDisableCmd cmd = new EnableDisableCmd() {
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311 public void enable() {
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312 activateDrawFeature(false);
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313 activatePan(false);
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314 activateZoomBox(false);
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315 activateSelectFeature(true);
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316 activateMeasureControl(false);
800
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317 }
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318
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319 public void disable() {
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320 activateSelectFeature(false);
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321 }
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322 };
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323
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324 ImgButton button = createToggleButton(MSG.selectFeature(), cmd);
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325
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326 return button;
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327 }
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328
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329
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330 protected ImgButton createRemoveFeatureControl() {
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331 ImgButton remove = createButton(MSG.removeFeature(),new ClickHandler() {
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332 public void onClick(ClickEvent event) {
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333 Vector barriers = floodMap.getBarrierLayer();
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334 VectorFeature[] features = barriers.getFeatures();
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335
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336 if (features == null || features.length == 0) {
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337 return;
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338 }
800
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339
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340 for (int i = features.length-1; i >= 0; i--) {
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341 VectorFeature feature = features[i];
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342
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343 Attributes attr = feature.getAttributes();
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344 int del = attr.getAttributeAsInt(MARK_TO_DELETE);
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345
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346 if (del == 1) {
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347 barriers.removeFeature(feature);
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348 feature.destroy();
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349 }
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350 }
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351 }
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352 });
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353
800
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354 return remove;
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355 }
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356
800
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357
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358 protected Canvas createMousePosition(Canvas mapWrapper) {
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359 return new MapPositionPanel(floodMap.getMapWidget(), mapWrapper);
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360 }
802
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361
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362
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363 protected MeasureControl createMeasureControl() {
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364 EnableDisableCmd cmd = new EnableDisableCmd() {
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365 public void enable() {
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366 activateDrawFeature(false);
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367 activatePan(false);
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368 activateZoomBox(false);
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369 activateSelectFeature(false);
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370 }
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371
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372 public void disable() {
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373 // do nothing
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374 }
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375 };
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376
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377 return new MeasureControl(floodMap, cmd);
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378 }
799
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379 }
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380 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org