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comparison 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
comparison
equal deleted inserted replaced
799:f4299b90c996 800:95cc560ce7c4
1 package de.intevation.flys.client.client.ui.map;
2
3 import java.util.LinkedHashMap;
4
5 import com.google.gwt.core.client.GWT;
6
7 import com.smartgwt.client.types.SelectionType;
8 import com.smartgwt.client.widgets.ImgButton;
9 import com.smartgwt.client.widgets.events.ClickEvent;
10 import com.smartgwt.client.widgets.events.ClickHandler;
11 import com.smartgwt.client.widgets.form.DynamicForm;
12 import com.smartgwt.client.widgets.form.fields.SelectItem;
13 import com.smartgwt.client.widgets.form.fields.FormItem;
14 import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
15 import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
16 import com.smartgwt.client.widgets.layout.HLayout;
17
18 import org.gwtopenmaps.openlayers.client.Map;
19 import org.gwtopenmaps.openlayers.client.control.Control;
20 import org.gwtopenmaps.openlayers.client.control.DrawFeature;
21 import org.gwtopenmaps.openlayers.client.handler.Handler;
22 import org.gwtopenmaps.openlayers.client.handler.PathHandler;
23 import org.gwtopenmaps.openlayers.client.handler.PolygonHandler;
24 import org.gwtopenmaps.openlayers.client.layer.Vector;
25
26 import de.intevation.flys.client.client.FLYSConstants;
27 import de.intevation.flys.client.client.utils.EnableDisableCmd;
28
29
30 public class DrawControl extends HLayout {
31
32 public static final String BARRIER_PIPE1 = "pipe1";
33 public static final String BARRIER_PIPE2 = "pipe2";
34 public static final String BARRIER_DITCH = "ditch";
35 public static final String BARRIER_DAM = "dam";
36 public static final String BARRIER_RINGDIKE = "ring_dike";
37
38 public static final String FIELD_BARRIER_TYPE = "field_barrier_type";
39
40
41 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
42
43 protected EnableDisableCmd cmd;
44
45 protected ImgButton button;
46 protected DynamicForm form;
47
48 protected Map map;
49 protected Vector layer;
50
51 protected Control control;
52
53
54 public DrawControl(Map map, Vector layer, EnableDisableCmd cmd) {
55 this.map = map;
56 this.layer = layer;
57 this.cmd = cmd;
58
59 initialize();
60 }
61
62
63 protected void initialize() {
64 setWidth(100);
65 setMembersMargin(0);
66
67 button = new ImgButton();
68
69 String baseUrl = GWT.getHostPageBaseURL();
70 button.setSrc(baseUrl + MSG.digitize());
71 button.setActionType(SelectionType.CHECKBOX);
72 button.setSize(20);
73 button.setShowRollOver(false);
74 button.setSelected(false);
75
76 button.addClickHandler(new ClickHandler() {
77 public void onClick(ClickEvent e) {
78 if (button.isSelected()) {
79 cmd.enable();
80 }
81 else {
82 cmd.disable();
83 }
84 }
85 });
86
87 form = new DynamicForm();
88 form.setWidth(75);
89 form.setTitlePrefix("");
90 form.setTitleSuffix("");
91
92 LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
93 map.put(BARRIER_PIPE1, MSG.getString(BARRIER_PIPE1));
94 map.put(BARRIER_PIPE2, MSG.getString(BARRIER_PIPE2));
95 map.put(BARRIER_DITCH, MSG.getString(BARRIER_DITCH));
96 map.put(BARRIER_DAM, MSG.getString(BARRIER_DAM));
97 map.put(BARRIER_RINGDIKE, MSG.getString(BARRIER_RINGDIKE));
98
99 SelectItem box = new SelectItem(FIELD_BARRIER_TYPE);
100 box.setTitle("");
101 box.setWidth(75);
102 box.setValueMap(map);
103 box.addChangedHandler(new ChangedHandler() {
104 public void onChanged(ChangedEvent e) {
105 setSelectedControl();
106 }
107 });
108
109 form.setFields(box);
110
111 addMember(button);
112 addMember(form);
113
114 activate(false);
115 }
116
117
118 protected String getSelectedType() {
119 return form.getValueAsString(FIELD_BARRIER_TYPE);
120 }
121
122
123 protected void removeControl() {
124 if (control != null) {
125 control.deactivate();
126 map.removeControl(control);
127 }
128 }
129
130
131 protected void setSelectedControl() {
132 removeControl();
133
134 String type = getSelectedType();
135
136 if (type == null || type.length() == 0) {
137 return;
138 }
139
140 if (type.equalsIgnoreCase(BARRIER_RINGDIKE)) {
141 control = createDrawPolygonControl();
142 }
143 else {
144 control = createDrawLineControl();
145 }
146
147 map.addControl(control);
148 control.activate();
149 }
150
151
152 protected Control createDrawControl(Handler handler) {
153 return new DrawFeature(layer, handler);
154 }
155
156
157 protected Control createDrawPolygonControl() {
158 return createDrawControl(new PolygonHandler());
159 }
160
161
162 protected Control createDrawLineControl() {
163 return createDrawControl(new PathHandler());
164 }
165
166
167 public void activate(boolean activate) {
168 FormItem item = form.getField(FIELD_BARRIER_TYPE);
169
170 if (activate) {
171 button.select();
172 item.enable();
173 setSelectedControl();
174 }
175 else {
176 removeControl();
177 button.deselect();
178 item.disable();
179 }
180 }
181 }
182 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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