Mercurial > dive4elements > river

comparison gwt-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java @ 5838:5aa05a7a34b7

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Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 15:23:37 +0200
parents flys-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java@821a02bbfb4e
children 172338b1407f
comparison
equal deleted inserted replaced
5837:d9901a08d0a6 5838:5aa05a7a34b7
1 package org.dive4elements.river.client.client.widgets;
2
3 import com.google.gwt.core.client.GWT;
4 import com.google.gwt.i18n.client.NumberFormat;
5
6 import com.smartgwt.client.data.Record;
7 import com.smartgwt.client.widgets.Button;
8 import com.smartgwt.client.widgets.Label;
9 import com.smartgwt.client.widgets.events.ClickEvent;
10 import com.smartgwt.client.widgets.form.DynamicForm;
11 import com.smartgwt.client.widgets.form.FormItemValueFormatter;
12 import com.smartgwt.client.widgets.form.FormItemValueParser;
13 import com.smartgwt.client.widgets.form.fields.FormItem;
14 import com.smartgwt.client.widgets.form.fields.TextItem;
15 import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
16 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
17 import com.smartgwt.client.widgets.form.fields.events.KeyPressEvent;
18 import com.smartgwt.client.widgets.form.fields.events.KeyPressHandler;
19 import com.smartgwt.client.widgets.layout.HLayout;
20
21 import org.dive4elements.river.client.shared.model.FacetRecord;
22
23 import java.util.ArrayList;
24 import java.util.List;
25
26 /**
27 * SpinnerItem-like element with text label and up/down buttons.
28 */
29 public class KMSpinner extends HLayout {
30 protected List<KMSpinnerChangeListener> listeners = new ArrayList<KMSpinnerChangeListener>();
31
32 protected Label label;
33 protected FacetRecord facetRecord;
34 protected double value;
35
36 public KMSpinner(double initialValue, FacetRecord facetRecord) {
37 super(2);
38 this.facetRecord = facetRecord;
39 this.value = initialValue;
40
41 setWidth("99%");
42 setHeight(18);
43
44 // minusButton shall ask service for previous available cs.
45 Button minusButton = new Button("-");
46 minusButton.setWidth(18);
47 minusButton.setHeight(18);
48 minusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
49 public void onClick(ClickEvent evt) {
50 fireChangedEvent(value - 0.1d, false);
51 }
52 });
53
54 DynamicForm form = new DynamicForm();
55 final TextItem kmField = new TextItem();
56 kmField.setValue(initialValue);
57 kmField.setWidth("*");
58 kmField.setTitle("");
59 kmField.setHeight(16);
60
61 FormItemValueFormatter doubleFormat = new FormItemValueFormatter() {
62 public String formatValue(Object value, Record record, DynamicForm form, FormItem item) {
63 if (value != null) {
64 NumberFormat nf = NumberFormat.getDecimalFormat();
65 try {
66 double d = Double.valueOf(value.toString()).doubleValue();
67 return nf.format(d);
68 }
69 catch (Exception e) {
70 GWT.log("EditorValueFormatter exception: " + e.toString());
71
72 // Remove junk chars from input string
73 return doublefyString(value.toString());
74 }
75 }
76 else {
77 return null;
78 }
79 }
80 };
81 kmField.setEditorValueFormatter(doubleFormat);
82
83 FormItemValueParser doubleParser = new FormItemValueParser() {
84 public Object parseValue(String value, DynamicForm form, FormItem item) {
85 if (value == null)
86 return null;
87 try {
88 NumberFormat nf = NumberFormat.getDecimalFormat();
89 double d = nf.parse(value.toString());
90 return Double.toString(d);
91 }
92 catch(NumberFormatException nfe) {
93 return value;
94 }
95 }
96 };
97 kmField.setEditorValueParser(doubleParser);
98
99 // Update on focus lost and enter-pressed.
100 kmField.addBlurHandler(new BlurHandler() {
101 @Override
102 public void onBlur(BlurEvent be) {
103 if (kmField.getValue() != null) {
104 try {
105 fireChangedEvent(Double.parseDouble(kmField.getValue().toString()), true);
106 }
107 catch(NumberFormatException nfe) {
108 GWT.log("entered string cannot be parsed to double.");
109 }
110 }
111 }
112 });
113 kmField.addKeyPressHandler(new KeyPressHandler() {
114 @Override
115 public void onKeyPress(KeyPressEvent kpe) {
116 if (kpe.getKeyName().equals("Enter")) {
117 kmField.blurItem();
118 }
119 }
120 });
121
122 // TODO: i18n Now add all the validators, formatters, editors/parsers etc.
123 form.setFields(kmField);
124 form.setTitle("");
125 form.setTitlePrefix("");
126 form.setTitleSuffix("");
127 form.setTitleWidth(0);
128 form.setWidth(50);
129 form.setHeight(18);
130
131 // PlusButton shall ask service for next available cs.
132 Button plusButton = new Button("+");
133 plusButton.setWidth(18);
134 plusButton.setHeight(18);
135 plusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
136 public void onClick(ClickEvent evt) {
137 fireChangedEvent(value + 0.1d, true);
138 }
139 });
140
141 this.addMember(minusButton);
142 this.addMember(form);
143 this.addMember(plusButton);
144 }
145
146 public void addChangeListener(KMSpinnerChangeListener listener) {
147 this.listeners.add(listener);
148 }
149
150 protected void fireChangedEvent(double val, boolean up) {
151 for(KMSpinnerChangeListener listener : listeners) {
152 listener.spinnerValueEntered(this, val, facetRecord, up);
153 }
154 }
155
156 /**
157 * Remove junk chars from double string.
158 * This method should work for most locales, but not for
159 * exotic ones that do not use "." or "," as decimal
160 * separator.
161 * @return
162 */
163 protected String doublefyString(String str) {
164 StringBuilder buf = new StringBuilder(str.length());
165
166 for (int n = 0; n < str.length(); n++) {
167 char c = str.charAt(n);
168 if ((c >= '0' && c <= '9') || c == '.' || c == ',') {
169 buf.append(c);
170 }
171 }
172
173 return buf.toString();
174 }
175 }
176
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