Mercurial > dive4elements > river

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
rev   line source
5835
821a02bbfb4e Fixed internal java dependencies
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5834
diff changeset
1 package org.dive4elements.river.client.client.widgets;
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2
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3 import com.google.gwt.core.client.GWT;
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4 import com.google.gwt.i18n.client.NumberFormat;
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5
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6 import com.smartgwt.client.data.Record;
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7 import com.smartgwt.client.widgets.Button;
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8 import com.smartgwt.client.widgets.Label;
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9 import com.smartgwt.client.widgets.events.ClickEvent;
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10 import com.smartgwt.client.widgets.form.DynamicForm;
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11 import com.smartgwt.client.widgets.form.FormItemValueFormatter;
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12 import com.smartgwt.client.widgets.form.FormItemValueParser;
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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.TextItem;
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15 import com.smartgwt.client.widgets.form.fields.events.BlurEvent;
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16 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
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17 import com.smartgwt.client.widgets.form.fields.events.KeyPressEvent;
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18 import com.smartgwt.client.widgets.form.fields.events.KeyPressHandler;
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19 import com.smartgwt.client.widgets.layout.HLayout;
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20
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21 import org.dive4elements.river.client.shared.model.FacetRecord;
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22
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23 import java.util.ArrayList;
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24 import java.util.List;
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25
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26 /**
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27 * SpinnerItem-like element with text label and up/down buttons.
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28 */
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29 public class KMSpinner extends HLayout {
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30 protected List<KMSpinnerChangeListener> listeners = new ArrayList<KMSpinnerChangeListener>();
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31
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32 protected Label label;
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33 protected FacetRecord facetRecord;
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34 protected double value;
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35
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36 public KMSpinner(double initialValue, FacetRecord facetRecord) {
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37 super(2);
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38 this.facetRecord = facetRecord;
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39 this.value = initialValue;
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40
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41 setWidth("99%");
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42 setHeight(18);
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43
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44 // minusButton shall ask service for previous available cs.
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45 Button minusButton = new Button("-");
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46 minusButton.setWidth(18);
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47 minusButton.setHeight(18);
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48 minusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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49 public void onClick(ClickEvent evt) {
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50 fireChangedEvent(value - 0.1d, false);
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51 }
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52 });
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53
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54 DynamicForm form = new DynamicForm();
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55 final TextItem kmField = new TextItem();
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56 kmField.setValue(initialValue);
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57 kmField.setWidth("*");
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58 kmField.setTitle("");
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59 kmField.setHeight(16);
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60
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61 FormItemValueFormatter doubleFormat = new FormItemValueFormatter() {
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62 public String formatValue(Object value, Record record, DynamicForm form, FormItem item) {
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63 if (value != null) {
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64 NumberFormat nf = NumberFormat.getDecimalFormat();
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65 try {
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66 double d = Double.valueOf(value.toString()).doubleValue();
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67 return nf.format(d);
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68 }
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69 catch (Exception e) {
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70 GWT.log("EditorValueFormatter exception: " + e.toString());
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71
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72 // Remove junk chars from input string
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73 return doublefyString(value.toString());
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74 }
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75 }
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76 else {
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77 return null;
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78 }
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79 }
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80 };
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81 kmField.setEditorValueFormatter(doubleFormat);
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82
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83 FormItemValueParser doubleParser = new FormItemValueParser() {
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84 public Object parseValue(String value, DynamicForm form, FormItem item) {
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85 if (value == null)
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86 return null;
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87 try {
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88 NumberFormat nf = NumberFormat.getDecimalFormat();
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89 double d = nf.parse(value.toString());
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90 return Double.toString(d);
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91 }
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92 catch(NumberFormatException nfe) {
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93 return value;
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94 }
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95 }
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96 };
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97 kmField.setEditorValueParser(doubleParser);
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98
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99 // Update on focus lost and enter-pressed.
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100 kmField.addBlurHandler(new BlurHandler() {
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101 @Override
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102 public void onBlur(BlurEvent be) {
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103 if (kmField.getValue() != null) {
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104 try {
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105 fireChangedEvent(Double.parseDouble(kmField.getValue().toString()), true);
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106 }
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107 catch(NumberFormatException nfe) {
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108 GWT.log("entered string cannot be parsed to double.");
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109 }
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110 }
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111 }
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112 });
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113 kmField.addKeyPressHandler(new KeyPressHandler() {
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114 @Override
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115 public void onKeyPress(KeyPressEvent kpe) {
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116 if (kpe.getKeyName().equals("Enter")) {
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117 kmField.blurItem();
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118 }
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119 }
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120 });
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121
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122 // TODO: i18n Now add all the validators, formatters, editors/parsers etc.
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123 form.setFields(kmField);
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124 form.setTitle("");
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125 form.setTitlePrefix("");
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126 form.setTitleSuffix("");
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127 form.setTitleWidth(0);
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128 form.setWidth(50);
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129 form.setHeight(18);
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130
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131 // PlusButton shall ask service for next available cs.
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132 Button plusButton = new Button("+");
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133 plusButton.setWidth(18);
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134 plusButton.setHeight(18);
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135 plusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
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136 public void onClick(ClickEvent evt) {
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137 fireChangedEvent(value + 0.1d, true);
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138 }
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139 });
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140
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141 this.addMember(minusButton);
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142 this.addMember(form);
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143 this.addMember(plusButton);
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144 }
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145
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146 public void addChangeListener(KMSpinnerChangeListener listener) {
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147 this.listeners.add(listener);
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148 }
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149
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150 protected void fireChangedEvent(double val, boolean up) {
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151 for(KMSpinnerChangeListener listener : listeners) {
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152 listener.spinnerValueEntered(this, val, facetRecord, up);
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153 }
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154 }
3852
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155
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156 /**
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157 * Remove junk chars from double string.
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158 * This method should work for most locales, but not for
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159 * exotic ones that do not use "." or "," as decimal
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160 * separator.
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161 * @return
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162 */
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163 protected String doublefyString(String str) {
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164 StringBuilder buf = new StringBuilder(str.length());
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165
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166 for (int n = 0; n < str.length(); n++) {
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167 char c = str.charAt(n);
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168 if ((c >= '0' && c <= '9') || c == '.' || c == ',') {
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169 buf.append(c);
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170 }
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171 }
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172
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173 return buf.toString();
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174 }
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175 }
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176
http://dive4elements.wald.intevation.org