Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/map/DrawControl.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
children d02c3835df28
rev   line source
800
95cc560ce7c4 Added map controls for digitizing and removing barriers.
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1 package de.intevation.flys.client.client.ui.map;
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2
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3 import java.util.LinkedHashMap;
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4
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5 import com.google.gwt.core.client.GWT;
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6
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7 import com.smartgwt.client.types.SelectionType;
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8 import com.smartgwt.client.widgets.ImgButton;
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9 import com.smartgwt.client.widgets.events.ClickEvent;
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10 import com.smartgwt.client.widgets.events.ClickHandler;
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11 import com.smartgwt.client.widgets.form.DynamicForm;
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12 import com.smartgwt.client.widgets.form.fields.SelectItem;
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13 import com.smartgwt.client.widgets.form.fields.FormItem;
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14 import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
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15 import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
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16 import com.smartgwt.client.widgets.layout.HLayout;
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17
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18 import org.gwtopenmaps.openlayers.client.Map;
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19 import org.gwtopenmaps.openlayers.client.control.Control;
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20 import org.gwtopenmaps.openlayers.client.control.DrawFeature;
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21 import org.gwtopenmaps.openlayers.client.handler.Handler;
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22 import org.gwtopenmaps.openlayers.client.handler.PathHandler;
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23 import org.gwtopenmaps.openlayers.client.handler.PolygonHandler;
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24 import org.gwtopenmaps.openlayers.client.layer.Vector;
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25
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26 import de.intevation.flys.client.client.FLYSConstants;
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27 import de.intevation.flys.client.client.utils.EnableDisableCmd;
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28
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29
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30 public class DrawControl extends HLayout {
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31
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32 public static final String BARRIER_PIPE1 = "pipe1";
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33 public static final String BARRIER_PIPE2 = "pipe2";
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34 public static final String BARRIER_DITCH = "ditch";
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35 public static final String BARRIER_DAM = "dam";
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36 public static final String BARRIER_RINGDIKE = "ring_dike";
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37
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38 public static final String FIELD_BARRIER_TYPE = "field_barrier_type";
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39
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40
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41 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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42
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43 protected EnableDisableCmd cmd;
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44
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45 protected ImgButton button;
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46 protected DynamicForm form;
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47
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48 protected Map map;
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49 protected Vector layer;
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50
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51 protected Control control;
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52
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53
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54 public DrawControl(Map map, Vector layer, EnableDisableCmd cmd) {
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55 this.map = map;
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56 this.layer = layer;
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57 this.cmd = cmd;
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58
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59 initialize();
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60 }
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61
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62
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63 protected void initialize() {
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64 setWidth(100);
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65 setMembersMargin(0);
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66
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67 button = new ImgButton();
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68
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69 String baseUrl = GWT.getHostPageBaseURL();
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70 button.setSrc(baseUrl + MSG.digitize());
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71 button.setActionType(SelectionType.CHECKBOX);
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72 button.setSize(20);
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73 button.setShowRollOver(false);
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74 button.setSelected(false);
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75
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76 button.addClickHandler(new ClickHandler() {
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77 public void onClick(ClickEvent e) {
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78 if (button.isSelected()) {
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79 cmd.enable();
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80 }
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81 else {
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82 cmd.disable();
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83 }
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84 }
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85 });
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86
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87 form = new DynamicForm();
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88 form.setWidth(75);
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89 form.setTitlePrefix("");
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90 form.setTitleSuffix("");
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91
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92 LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
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93 map.put(BARRIER_PIPE1, MSG.getString(BARRIER_PIPE1));
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94 map.put(BARRIER_PIPE2, MSG.getString(BARRIER_PIPE2));
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95 map.put(BARRIER_DITCH, MSG.getString(BARRIER_DITCH));
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96 map.put(BARRIER_DAM, MSG.getString(BARRIER_DAM));
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97 map.put(BARRIER_RINGDIKE, MSG.getString(BARRIER_RINGDIKE));
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98
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99 SelectItem box = new SelectItem(FIELD_BARRIER_TYPE);
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100 box.setTitle("");
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101 box.setWidth(75);
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102 box.setValueMap(map);
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103 box.addChangedHandler(new ChangedHandler() {
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104 public void onChanged(ChangedEvent e) {
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105 setSelectedControl();
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106 }
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107 });
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108
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109 form.setFields(box);
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110
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111 addMember(button);
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112 addMember(form);
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113
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114 activate(false);
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115 }
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116
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117
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118 protected String getSelectedType() {
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119 return form.getValueAsString(FIELD_BARRIER_TYPE);
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120 }
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121
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122
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123 protected void removeControl() {
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124 if (control != null) {
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125 control.deactivate();
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126 map.removeControl(control);
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127 }
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128 }
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129
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130
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131 protected void setSelectedControl() {
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132 removeControl();
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133
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134 String type = getSelectedType();
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135
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136 if (type == null || type.length() == 0) {
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137 return;
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138 }
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139
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140 if (type.equalsIgnoreCase(BARRIER_RINGDIKE)) {
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141 control = createDrawPolygonControl();
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142 }
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143 else {
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144 control = createDrawLineControl();
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145 }
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146
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147 map.addControl(control);
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148 control.activate();
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149 }
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150
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151
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152 protected Control createDrawControl(Handler handler) {
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153 return new DrawFeature(layer, handler);
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154 }
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155
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156
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157 protected Control createDrawPolygonControl() {
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158 return createDrawControl(new PolygonHandler());
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159 }
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160
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161
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162 protected Control createDrawLineControl() {
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163 return createDrawControl(new PathHandler());
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164 }
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165
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166
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167 public void activate(boolean activate) {
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168 FormItem item = form.getField(FIELD_BARRIER_TYPE);
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169
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170 if (activate) {
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171 button.select();
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172 item.enable();
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173 setSelectedControl();
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174 }
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175 else {
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176 removeControl();
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177 button.deselect();
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178 item.disable();
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179 }
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180 }
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181 }
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182 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org