Mercurial > dive4elements > river

comparison flys-client/src/main/java/de/intevation/flys/client/client/ui/SelectProvider.java @ 20:c128d675386b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added UIProviders that are used to create widgets for entering data. flys-client/trunk@1334 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 22 Feb 2011 17:17:12 +0000
parents
children 5709bd8f4d7c
comparison
equal deleted inserted replaced
19:f48b2cb2e219 20:c128d675386b
1 package de.intevation.flys.client.client.ui;
2
3 import java.util.ArrayList;
4 import java.util.LinkedHashMap;
5 import java.util.List;
6
7 import com.google.gwt.core.client.GWT;
8
9 import com.smartgwt.client.widgets.Canvas;
10 import com.smartgwt.client.widgets.IButton;
11 import com.smartgwt.client.widgets.events.ClickEvent;
12 import com.smartgwt.client.widgets.events.ClickHandler;
13 import com.smartgwt.client.widgets.form.DynamicForm;
14 import com.smartgwt.client.widgets.form.fields.ComboBoxItem;
15 import com.smartgwt.client.widgets.layout.VLayout;
16
17 import de.intevation.flys.client.shared.model.Data;
18 import de.intevation.flys.client.shared.model.DataItem;
19 import de.intevation.flys.client.shared.model.DefaultData;
20 import de.intevation.flys.client.shared.model.DefaultDataItem;
21
22 import de.intevation.flys.client.client.FLYSMessages;
23 import de.intevation.flys.client.client.event.HasStepForwardHandlers;
24 import de.intevation.flys.client.client.event.StepForwardEvent;
25 import de.intevation.flys.client.client.event.StepForwardHandler;
26
27
28 /**
29 * This UIProvider displays the DataItems of the Data object in a combo box.
30 *
31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
32 */
33 public class SelectProvider implements UIProvider, HasStepForwardHandlers,
34 ClickHandler
35 {
36 /** The message class that provides i18n strings.*/
37 protected FLYSMessages messages = GWT.create(FLYSMessages.class);
38
39 /** The StepForwardHandlers.*/
40 protected List<StepForwardHandler> forwardHandlers;
41
42 /** The combobox.*/
43 protected ComboBoxItem combobox;
44
45
46 /**
47 * Creates a new UIProvider instance of this class.
48 */
49 public SelectProvider() {
50 forwardHandlers = new ArrayList<StepForwardHandler>();
51 }
52
53
54 public void addStepForwardHandler(StepForwardHandler handler) {
55 if (handler != null) {
56 GWT.log("SelectProvider - addStepForwardHandler()");
57 forwardHandlers.add(handler);
58 }
59
60 GWT.log("Handlers now: " + forwardHandlers.size());
61 }
62
63
64 /**
65 * This method is called after the user has clicked on the 'next' button to
66 * step to the next state.
67 *
68 * @param e The StepForwardEvent.
69 */
70 protected void fireStepForwardEvent(StepForwardEvent e) {
71 GWT.log("SelectProvider - fireStepForwardEvent() handlers: " + forwardHandlers.size());
72 for (StepForwardHandler handler: forwardHandlers) {
73 GWT.log("SelectProvider - fireStepForwardEvent()");
74 handler.onStepForward(e);
75 }
76 }
77
78 public void onClick(ClickEvent e) {
79 GWT.log("SelectProvider - feed and advance...");
80 Data[] data = getData();
81
82 GWT.log("GO ON...");
83 SelectProvider.this.fireStepForwardEvent(new StepForwardEvent(data));
84 }
85
86 /**
87 * This method currently returns a
88 * {@link com.smartgwt.client.widgets.form.DynamicForm} that contains all
89 * data items in a combobox stored in <i>data</i>.
90 *
91 * @param data The {@link Data} object.
92 *
93 * @return a combobox.
94 */
95 public Canvas create(Data data) {
96 VLayout v = new VLayout();
97
98 Canvas content = createWidget(data);
99
100 IButton button = new IButton(messages.next(), this);
101 //IButton button = new IButton(messages.next(), new ClickHandler() {
102 // public void onClick(ClickEvent e) {
103 // GWT.log("SelectProvider - feed and advance...");
104 // Data[] data = getData();
105
106 // GWT.log("GO ON...");
107 // SelectProvider.this.fireStepForwardEvent(new StepForwardEvent(data));
108 // }
109 //});
110
111 v.addMember(content);
112 v.addMember(button);
113
114 return v;
115 }
116
117
118 /**
119 * This method creates the content of the widget.
120 *
121 * @param data The {@link Data} object.
122 *
123 * @return a combobox.
124 */
125 protected Canvas createWidget(Data data) {
126 GWT.log("SelectProvider - create()");
127
128 DynamicForm form = new DynamicForm();
129 combobox = new ComboBoxItem("river");
130
131 LinkedHashMap<String, String> it = new LinkedHashMap<String, String>();
132
133 for (DataItem item: data.getItems()) {
134 GWT.log("Add item: " + item.getLabel());
135 it.put(item.getStringValue(), item.getLabel());
136 }
137
138 combobox.setValueMap(it);
139 form.setItems(combobox);
140
141 return form;
142 }
143
144
145 protected Data[] getData() {
146 String selection = combobox.getValueAsString();
147
148 GWT.log("SelectProvider - getData() Selected value = " + selection);
149 DataItem item = new DefaultDataItem("river", null, selection);
150
151 return new Data[] { new DefaultData(
152 "river", null, null, new DataItem[] { item }, null) };
153 }
154 }
155 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org