Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/DoubleArrayPanel.java @ 238:234c78a91c15

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Added new UI provider for single location selection. flys-client/trunk@1806 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Tue, 03 May 2011 13:52:14 +0000
parents 137daff2c732
children ccba1a0b743e
rev   line source
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ba7df4a24ae0 Added a new widget to enter w/Q values in single and range mode.
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1 package de.intevation.flys.client.client.ui;
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2
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3 import java.util.Map;
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4
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5 import com.google.gwt.core.client.GWT;
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6 import com.google.gwt.i18n.client.NumberFormat;
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7
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8 import com.smartgwt.client.types.TitleOrientation;
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9 import com.smartgwt.client.widgets.form.DynamicForm;
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10 import com.smartgwt.client.widgets.form.fields.FormItem;
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11 import com.smartgwt.client.widgets.form.fields.StaticTextItem;
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12 import com.smartgwt.client.widgets.form.fields.TextItem;
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13 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
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14
211
b92281182c6b Removed the FLYSMessages interface and replaced it with a FLYSConstants interface - this interface has the ability to lookup i18n strings with given keys.
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15 import de.intevation.flys.client.client.FLYSConstants;
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16
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17 public class DoubleArrayPanel
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18 extends DynamicForm
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19 {
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20 /** The message class that provides i18n strings.*/
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21 protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
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22
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23 protected TextItem ti;
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24
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25 /** The constant input field name.*/
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26 public static final String FIELD_NAME = "doublearray";
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28
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29 /**
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30 * Creates a new form with a single input field that displays an array of
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31 * double values.
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32 *
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33 * @param name The name of the TextItem.
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34 * @param title The title of the TextItem.
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35 * @param values The double values that should be displayed initially.
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36 * @param handler The BlurHandler that is used to valide the input.
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37 */
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38 public DoubleArrayPanel(
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39 String title,
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40 double[] values,
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41 BlurHandler handler)
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42 {
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43 ti = new TextItem(FIELD_NAME);
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44 StaticTextItem sti = new StaticTextItem("staticarray");
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45
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46 ti.setShowTitle(false);
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47 sti.setShowTitle(false);
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48 sti.setValue(title);
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49
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50 ti.addBlurHandler(handler);
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51
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52 setFields(ti, sti);
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53 setTitleOrientation(TitleOrientation.RIGHT);
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54 setNumCols(2);
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55
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56 if (values == null) {
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57 return;
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58 }
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59
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60 NumberFormat f = NumberFormat.getDecimalFormat();
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61
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62 StringBuilder text = new StringBuilder();
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63 boolean firstItem = true;
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64
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65 for (double val: values) {
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66 if (!firstItem) {
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67 text.append(" ");
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68 }
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69
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70 text.append(f.format(val));
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71
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72 firstItem = false;
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73 }
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74
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75 ti.setValue(text.toString());
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76 }
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77
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78
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79 /**
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80 * This method takes the double array to set the values to the textbox.
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81 *
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82 * @param values The double values.
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83 */
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84 public void setValues(double[] values) {
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85 NumberFormat f = NumberFormat.getDecimalFormat();
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86
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87 StringBuilder text = new StringBuilder();
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88 boolean firstItem = true;
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89 if (values != null) {
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90 for (double val: values) {
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91 if (!firstItem) {
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92 text.append(" ");
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93 }
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94
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95 text.append(f.format(val));
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96
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97 firstItem = false;
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98 }
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99 }
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100
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101 ti.clearValue();
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102 ti.setValue(text.toString());
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103 }
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104
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105
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106 /**
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107 * This method validates the entered text in the location input field. If
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108 * there are values that doesn't represent a valid location, an error is
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109 * displayed.
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110 *
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111 * @param item The FormItem.
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112 */
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113 protected boolean validateForm(FormItem item) {
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114 if (item instanceof StaticTextItem) {
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115 return true;
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116 }
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117
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118 boolean valid = true;
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119 String value = (String) item.getValue();
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120
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121 if (value == null) {
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122 return valid;
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123 }
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124
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125 String[] parts = value.split(" ");
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126
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127 if (parts == null) {
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128 return valid;
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129 }
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130
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131 NumberFormat f = NumberFormat.getDecimalFormat();
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132 Map errors = getErrors();
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133
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134 try {
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135 for (String part: parts) {
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136 double location = f.parse(part);
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137 }
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138
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139 errors.remove(item.getFieldName());
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140 }
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141 catch (NumberFormatException nfe) {
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142 errors.put(item.getFieldName(), MESSAGES.wrongFormat());
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143
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144 valid = false;
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145 }
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146
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147 setErrors(errors, true);
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148
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149 return valid;
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150 }
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151
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152
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153 /**
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154 * This method returns the double array that has been entered in
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155 * <i>item</i>.
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156 *
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157 * @param item The item that contains the desired values.
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158 *
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159 * @return the values as double array.
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160 */
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161 public double[] getInputValues(FormItem item) {
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162 String value = (String) item.getValue();
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163
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164 if (value == null) {
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165 return null;
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166 }
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167
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168 String[] parts = value.split(" ");
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169
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170 if (parts == null) {
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171 return null;
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172 }
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173
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174 double[] values = new double[parts.length];
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175
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176 NumberFormat f = NumberFormat.getDecimalFormat();
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177
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178 int i = 0;
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179 for (String part: parts) {
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180 try {
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181 values[i++] = f.parse(part);
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182 }
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183 catch (NumberFormatException nfe) {
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184 // do nothing
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185 }
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186 }
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187
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188 return values;
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189 }
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190 }
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191 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org