Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/DoubleRangePanel.java @ 7748:316a9eeb0836

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Hopefully a cleaner fix for flys/issue1549 using the FloatRangeValidator from SmartGWT to verify that the 'to' field stays positive.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 21 Feb 2014 15:28:08 +0100
parents 1d6b957d8953
children 7337034eb5d5
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.client.ui;
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10
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11 import com.google.gwt.core.client.GWT;
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12 import com.google.gwt.i18n.client.NumberFormat;
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13
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14 import com.smartgwt.client.types.Alignment;
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15 import com.smartgwt.client.widgets.form.DynamicForm;
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16 import com.smartgwt.client.widgets.form.fields.FloatItem;
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17 import com.smartgwt.client.widgets.form.fields.FormItem;
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18 import com.smartgwt.client.widgets.form.fields.StaticTextItem;
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19 import com.smartgwt.client.widgets.form.fields.events.BlurHandler;
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20
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21 import org.dive4elements.river.client.client.FLYSConstants;
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22
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360e22afb98b Cosmetics, warnings and minor TODOs.
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23 import java.util.Map;
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24
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25
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26 /**
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27 * This class creates a DynamicForm with three input fields.
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28 *
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29 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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30 */
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31 public class DoubleRangePanel
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32 extends DynamicForm
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33 {
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34 /** The message class that provides i18n strings.*/
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35 protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
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36
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37
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38 /** The constant name of the input field to enter the start of a distance.*/
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39 public static final String FIELD_FROM = "from";
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40
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41 /** The constant name of the input field to enter the end of a distance.*/
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42 public static final String FIELD_TO = "to";
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43
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44 /** The constant name of the input field to enter the step width of a
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45 * distance.*/
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46 public static final String FIELD_WIDTH = "step";
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47
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48 /** The textboxes */
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49 protected FloatItem fromItem;
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50 protected FloatItem toItem;
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51 protected FloatItem stepItem;
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52
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53
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54 public DoubleRangePanel() {
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55 }
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56
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57 public FloatItem getToItem() {
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58 return toItem;
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59 }
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60
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61
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62 /**
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63 * Creates a new form with a single input field that displays an array of
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64 * double values.
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65 *
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66 * @param name The name of the TextItem.
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67 * @param title The title of the TextItem.
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68 * @param values The double values that should be displayed initially.
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69 * @param handler The BlurHandler that is used to valide the input.
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70 */
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71 public DoubleRangePanel(
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72 String titleFrom, String titleTo, String titleStep,
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73 double from, double to, double step,
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74 int width,
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75 BlurHandler handler)
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76 {
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77 this(
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78 titleFrom, titleTo, titleStep,
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79 from, to, step,
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80 width,
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81 handler,
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82 "right");
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83 }
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84
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85
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86 public DoubleRangePanel(
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87 String titleFrom, String titleTo, String titleStep,
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88 double from, double to, double step,
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89 int width,
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90 BlurHandler handler,
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91 String labelOrientation)
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92 {
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93 fromItem = new FloatItem(FIELD_FROM);
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94 toItem = new FloatItem(FIELD_TO);
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95 stepItem = new FloatItem(FIELD_WIDTH);
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96
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97 fromItem.addBlurHandler(handler);
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98 toItem.addBlurHandler(handler);
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99 stepItem.addBlurHandler(handler);
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100
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101 NumberFormat f = NumberFormat.getDecimalFormat();
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102
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103 fromItem.setValue(f.format(from));
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104 toItem.setValue(f.format(to));
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105 stepItem.setValue(f.format(step));
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106
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107 StaticTextItem fromText = new StaticTextItem("staticFrom");
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108 fromText.setValue(titleFrom);
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109 fromText.setShowTitle(false);
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110 fromItem.setShowTitle(false);
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111
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112 StaticTextItem toText = new StaticTextItem("staticTo");
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113 toText.setValue(titleTo);
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114 toText.setShowTitle(false);
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115 toItem.setShowTitle(false);
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116
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117 StaticTextItem stepText = new StaticTextItem("staticStep");
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118 stepText.setValue(titleStep);
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119 stepText.setShowTitle(false);
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120 stepItem.setShowTitle(false);
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121
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122 int itemWidth = width / 6;
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123 fromItem.setWidth(itemWidth);
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124 fromText.setWidth(itemWidth);
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125 toItem.setWidth(itemWidth);
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126 toText.setWidth(itemWidth);
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127 stepItem.setWidth(itemWidth);
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128 stepText.setWidth(itemWidth);
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129
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130 if (labelOrientation.equals("right")) {
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131 setFields(fromItem, fromText, toItem, toText, stepItem, stepText);
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132 }
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133 else {
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134 setFields(fromText, fromItem, toText, toItem, stepText, stepItem);
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135 }
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136
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137 setFixedColWidths(false);
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138 setNumCols(6);
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139 setWidth(width);
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140 setAlign(Alignment.CENTER);
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141 }
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142
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143
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144 /**
233
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145 * This method takes distances values and sets them to the textboxes
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146 * visualizied by this widget.
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147 *
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148 * @param from The from value.
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149 * @param to The to value.
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150 * @param steps The max steps.
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151 */
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152 public void setValues(double from, double to, double steps) {
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153 NumberFormat f = NumberFormat.getDecimalFormat();
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154
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155 fromItem.setValue(f.format(from));
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156 toItem.setValue(f.format(to));
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157 stepItem.setValue(f.format(steps));
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158 }
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159
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160 public boolean validateForm() {
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161 try {
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162 return
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163 validateForm(fromItem) &&
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164 validateForm(toItem) &&
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165 validateForm(stepItem);
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166 }
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167 catch (NumberFormatException nfe) {
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168 return false;
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169 }
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170 }
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171
233
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172 /**
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173 * This method validates the entered text in the input fields. If
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174 * there are values that doesn't represent a valid float, an error is
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175 * displayed.
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176 *
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177 * Also if negativeToAllowed is false, an error is registered if
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178 * the 'to' field contains a negative value.
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179 *
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180 * @param item The FormItem.
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181 */
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182 @SuppressWarnings("unchecked")
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183 protected boolean validateForm(FormItem item) {
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184 if (item instanceof StaticTextItem) {
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185 return true;
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186 }
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187
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188 boolean valid = true;
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189
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190 String v = (String) item.getValue();
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191
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192 NumberFormat f = NumberFormat.getDecimalFormat();
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193 @SuppressWarnings("rawtypes")
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194 Map errors = getErrors();
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195
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196 try {
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197 if (v == null) {
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198 throw new NumberFormatException("empty");
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199 }
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200
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201 f.parse(v);
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202
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203 errors.remove(item.getFieldName());
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204 }
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205 catch (NumberFormatException nfe) {
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206 errors.put(item.getFieldName(), MESSAGES.wrongFormat());
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207
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208 item.focusInItem();
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209
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210 valid = false;
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211 }
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212
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213 setErrors(errors, true);
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214
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215 return valid;
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216 }
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217
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218
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219 /**
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220 * Returns the double value of <i>value</i>.
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221 *
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222 * @return the double value of <i>value</i>.
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223 */
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224 protected double getDouble(String value) {
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225 NumberFormat f = NumberFormat.getDecimalFormat();
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226
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6ebe845a9d37 #117 Improved double value parsing in DoubleArrayPanel and DoubleRangePanel.
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227 String[] splitted = value.split(" ");
6ebe845a9d37 #117 Improved double value parsing in DoubleArrayPanel and DoubleRangePanel.
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228
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229 return f.parse(splitted[0]);
42
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230 }
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231
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232
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233 /**
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234 * Returns the start value.
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235 *
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236 * @return the start value.
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237 */
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238 public double getFrom() throws NullPointerException {
42
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239 String v = getValueAsString(FIELD_FROM);
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240
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241 return getDouble(v);
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242 }
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243
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244
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245 /**
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246 * Returns the end value.
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247 *
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248 * @return the end value.
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249 */
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250 public double getTo() throws NullPointerException {
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251 String v = getValueAsString(FIELD_TO);
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252
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253 return getDouble(v);
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254 }
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255
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256
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257 /**
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258 * Returns the step width.
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259 *
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260 * @return the step width.
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261 */
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262 public double getStep() throws NullPointerException {
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263 String v = getValueAsString(FIELD_WIDTH);
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264
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265 return getDouble(v);
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266 }
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42512fce9b1b #140, #122: Splitted the WQD table in the WQInputPanel into two tables: a table for QD values and a table for W values - only the QD table is selectable.
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267
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268
42512fce9b1b #140, #122: Splitted the WQD table in the WQInputPanel into two tables: a table for QD values and a table for W values - only the QD table is selectable.
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269 /**
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270 * Sets the value of the field with name <i>fieldname</i>.
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271 *
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272 * @param value The new value.
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273 * @param fieldname The name of the field.
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274 */
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275 public void setDoubleValue(double value, String fieldname) {
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276 NumberFormat f = NumberFormat.getDecimalFormat();
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277 setValue(fieldname, f.format(value));
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278 }
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279
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280
42512fce9b1b #140, #122: Splitted the WQD table in the WQInputPanel into two tables: a table for QD values and a table for W values - only the QD table is selectable.
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281 /**
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282 * Sets a new start value.
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283 *
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284 * @param value The new start value.
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285 */
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286 public void setFrom(double value) {
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287 setDoubleValue(value, FIELD_FROM);
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288 }
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289
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290
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291 /**
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292 * Sets a new end value.
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293 *
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294 * @param value The new end value.
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295 */
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296 public void setTo(double value) {
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297 setDoubleValue(value, FIELD_TO);
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298 }
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a39c2f531755 Implemented a new panel to enter kilometer ranges (with no option to insert locations).
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299
a39c2f531755 Implemented a new panel to enter kilometer ranges (with no option to insert locations).
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300
a39c2f531755 Implemented a new panel to enter kilometer ranges (with no option to insert locations).
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301 /**
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302 * Sets a new step width.
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303 *
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304 * @param value The new step width.
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305 */
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306 public void setStep(double value) {
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307 setDoubleValue(value, FIELD_WIDTH);
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308 }
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309 }
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310 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org