Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/MapToolbar.java @ 800:95cc560ce7c4

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Added map controls for digitizing and removing barriers. flys-client/trunk@2321 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 12 Jul 2011 13:43:49 +0000
parents f4299b90c996
children d45ad7fd3027
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
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48 protected Canvas position;
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50
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51 public MapToolbar(FloodMap floodMap, Canvas wrapper) {
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52 super();
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53
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54 setWidth100();
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55 setHeight(30);
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56 setMembersMargin(10);
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57 setPadding(5);
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58 setBorder("1px solid black");
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59
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60 this.floodMap = floodMap;
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61
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62 Canvas spacer = new Canvas();
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63 spacer.setWidth("*");
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64
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65 zoomToMaxButton = createMaxExtentControl();
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66 zoomBoxButton = createZoomBoxControl();
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67 zoomOutButton = createZoomOutControl();
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68 panButton = createPanControl();
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69 position = createMousePosition(wrapper);
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70 drawControl = createDrawControl();
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71 selectButton = createSelectFeatureControl();
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72 removeButton = createRemoveFeatureControl();
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73
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74 addMember(zoomToMaxButton);
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75 addMember(zoomBoxButton);
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76 addMember(zoomOutButton);
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77 addMember(panButton);
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78 addMember(drawControl);
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79 addMember(selectButton);
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80 addMember(removeButton);
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81 addMember(spacer);
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82 addMember(position);
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83 }
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84
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85
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86 protected Map getMap() {
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87 return floodMap.getMap();
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88 }
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89
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90
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91 protected void activatePan(boolean activate) {
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92 if (activate) {
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93 panButton.select();
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94 pan.activate();
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95 }
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96 else {
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97 panButton.deselect();
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98 pan.deactivate();
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99 }
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100 }
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101
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102
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103 protected void activateZoomBox(boolean activate) {
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104 if (activate) {
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105 zoomBoxButton.select();
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106 zoomBox.activate();
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107 }
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108 else {
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109 zoomBoxButton.deselect();
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110 zoomBox.deactivate();
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111 }
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112 }
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114
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115 protected void activateDrawFeature(boolean activate) {
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116 drawControl.activate(activate);
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117 }
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118
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119
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120 protected void activateSelectFeature(boolean activate) {
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121 if (activate) {
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122 selectButton.select();
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123 selectFeature.activate();
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124 }
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125 else {
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126 selectButton.deselect();
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127 selectFeature.deactivate();
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128 }
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129 }
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130
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131
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132 protected ImgButton createButton(String img, ClickHandler handler) {
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133 ImgButton btn = new ImgButton();
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134
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135 String baseUrl = GWT.getHostPageBaseURL();
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136 btn.setSrc(baseUrl + img);
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137 btn.setWidth(20);
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138 btn.setHeight(20);
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139 btn.setShowDown(false);
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140 btn.setShowRollOver(false);
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141 btn.setShowDisabled(false);
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142 btn.setShowDisabledIcon(true);
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143 btn.setShowDownIcon(false);
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144 btn.setShowFocusedIcon(false);
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145
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146 if (handler != null) {
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147 btn.addClickHandler(handler);
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148 }
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149
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150 return btn;
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151 }
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152
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153
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154 protected ImgButton createToggleButton(
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155 String img,
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156 final EnableDisableCmd cmd
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157 ) {
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158 final ImgButton btn = new ImgButton();
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159
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160 String baseUrl = GWT.getHostPageBaseURL();
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161 btn.setSrc(baseUrl + img);
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162 btn.setActionType(SelectionType.CHECKBOX);
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163 btn.setSize(20);
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164 btn.setShowRollOver(false);
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165 btn.setSelected(false);
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166 btn.addClickHandler(new ClickHandler() {
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167 public void onClick(ClickEvent e) {
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168 if (btn.isSelected()) {
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169 cmd.enable();
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170 }
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171 else {
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172 cmd.disable();
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173 }
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174 }
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175 });
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176
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177 return btn;
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178 }
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179
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180
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181 protected ImgButton createMaxExtentControl() {
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182 ImgButton zoomToMax = createButton(MSG.zoom_all(), new ClickHandler() {
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183 public void onClick(ClickEvent event) {
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184 floodMap.getMap().zoomToMaxExtent();
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185 }
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186 });
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187
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188 return zoomToMax;
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189 }
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190
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191
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192 protected ImgButton createZoomBoxControl() {
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193 zoomBox = new ZoomBox();
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194
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195 EnableDisableCmd cmd = new EnableDisableCmd() {
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196 public void enable() {
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197 activateZoomBox(true);
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198 activatePan(false);
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199 activateDrawFeature(false);
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200 activateSelectFeature(false);
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201 }
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202
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203 public void disable() {
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204 activateZoomBox(false);
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205 }
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206 };
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207
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208 ImgButton button = createToggleButton(MSG.zoom_in(), cmd);
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209 Map map = getMap();
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210 map.addControl(zoomBox);
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211
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212 return button;
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213 }
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214
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215
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216 protected ImgButton createZoomOutControl() {
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217 ImgButton zoomOut = createButton(MSG.zoom_out(), new ClickHandler() {
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218 public void onClick(ClickEvent event) {
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219 Map map = floodMap.getMap();
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220 int level = map.getZoom();
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221
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222 if (level > 1) {
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223 map.zoomTo(level-1);
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224 }
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225 }
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226 });
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227
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228 return zoomOut;
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229 }
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230
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231
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232 protected ImgButton createPanControl() {
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233 pan = new DragPan();
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234 getMap().addControl(pan);
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235
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236 EnableDisableCmd cmd = new EnableDisableCmd() {
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237 public void enable() {
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238 activateZoomBox(false);
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239 activatePan(true);
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240 activateDrawFeature(false);
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241 activateSelectFeature(false);
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242 }
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243
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244 public void disable() {
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245 activatePan(false);
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246 }
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247 };
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248
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249 final ImgButton button = createToggleButton(MSG.pan(), cmd);
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250
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251 return button;
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252 }
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253
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254
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255 protected DrawControl createDrawControl() {
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256 EnableDisableCmd cmd = new EnableDisableCmd() {
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257 public void enable() {
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258 activateZoomBox(false);
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259 activatePan(false);
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260 activateDrawFeature(true);
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261 activateSelectFeature(false);
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262 }
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263
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264 public void disable() {
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265 activateDrawFeature(false);
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266 }
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267 };
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268 return new DrawControl(getMap(), floodMap.getBarrierLayer(), cmd);
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269 }
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270
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271
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272 protected ImgButton createSelectFeatureControl() {
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273 SelectFeatureOptions opts = new SelectFeatureOptions();
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274
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275 // VectorFeatures selected by the SelectFeature control are manually
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276 // marked with the string "mark.delete". The control to remove selected
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277 // features makes use of this string to determine if the feature should
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278 // be deleted (is marked) or not. Actually, we would like to use the
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279 // OpenLayers native mechanism to select features, but for some reason
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280 // this doesn't work here. After a feature has been selected, the layer
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281 // still has no selected features.
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282 opts.onSelect(new SelectFeature.SelectFeatureListener() {
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283 public void onFeatureSelected(VectorFeature feature) {
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284 Attributes attr = feature.getAttributes();
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285 attr.setAttribute(MARK_TO_DELETE, 1);
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286 }
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287 });
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288
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289 opts.onUnSelect(new SelectFeature.UnselectFeatureListener() {
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290 public void onFeatureUnselected(VectorFeature feature) {
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291 Attributes attr = feature.getAttributes();
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292 attr.setAttribute(MARK_TO_DELETE, 0);
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293 }
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294 });
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295
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296 selectFeature = new SelectFeature(floodMap.getBarrierLayer(), opts);
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297 getMap().addControl(selectFeature);
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298
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299 EnableDisableCmd cmd = new EnableDisableCmd() {
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300 public void enable() {
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301 activateDrawFeature(false);
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302 activatePan(false);
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303 activateZoomBox(false);
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304 activateSelectFeature(true);
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305 }
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306
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307 public void disable() {
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308 activateSelectFeature(false);
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309 }
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310 };
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311
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312 ImgButton button = createToggleButton(MSG.selectFeature(), cmd);
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313
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314 return button;
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315 }
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316
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317
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318 protected ImgButton createRemoveFeatureControl() {
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319 ImgButton remove = createButton(MSG.removeFeature(),new ClickHandler() {
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320 public void onClick(ClickEvent event) {
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321 Vector barriers = floodMap.getBarrierLayer();
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322 VectorFeature[] features = barriers.getFeatures();
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323
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324 if (features == null || features.length == 0) {
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325 return;
799
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326 }
800
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327
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328 for (int i = features.length-1; i >= 0; i--) {
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329 VectorFeature feature = features[i];
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330
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331 Attributes attr = feature.getAttributes();
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332 int del = attr.getAttributeAsInt(MARK_TO_DELETE);
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333
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334 if (del == 1) {
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335 barriers.removeFeature(feature);
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336 feature.destroy();
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337 }
799
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338 }
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339 }
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340 });
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341
800
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342 return remove;
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343 }
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344
800
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345
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346 protected Canvas createMousePosition(Canvas mapWrapper) {
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347 return new MapPositionPanel(floodMap.getMapWidget(), mapWrapper);
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348 }
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349 }
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350 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org