Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/LocationDistancePanel.java @ 45:f99c5f8e4672
Some GUI improvements in the Location/Distance, W/Q and Module panels.
flys-client/trunk@1490 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 17 Mar 2011 09:54:05 +0000 |
parents | 6bcd8e3f21a7 |
children | 0d4795b4f284 |
rev | line source |
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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.LinkedHashMap; |
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4 import java.util.Map; |
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5 |
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6 import com.google.gwt.core.client.GWT; |
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7 import com.google.gwt.i18n.client.NumberFormat; |
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8 |
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9 import com.smartgwt.client.types.TitleOrientation; |
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10 import com.smartgwt.client.widgets.Canvas; |
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11 import com.smartgwt.client.widgets.IButton; |
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12 import com.smartgwt.client.widgets.Label; |
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13 import com.smartgwt.client.widgets.form.DynamicForm; |
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14 import com.smartgwt.client.widgets.form.fields.events.BlurHandler; |
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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.ChangeHandler; |
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17 import com.smartgwt.client.widgets.form.fields.events.ChangeEvent; |
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18 import com.smartgwt.client.widgets.form.fields.FormItem; |
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19 import com.smartgwt.client.widgets.form.fields.FloatItem; |
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20 import com.smartgwt.client.widgets.form.fields.RadioGroupItem; |
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21 import com.smartgwt.client.widgets.form.fields.TextItem; |
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22 import com.smartgwt.client.widgets.layout.HLayout; |
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23 import com.smartgwt.client.widgets.layout.VLayout; |
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24 |
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25 import de.intevation.flys.client.shared.model.Data; |
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26 import de.intevation.flys.client.client.FLYSMessages; |
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27 |
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28 |
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29 /** |
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30 * This UIProvider creates a widget to enter locations or a distance. |
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31 * |
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32 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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33 */ |
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34 public class LocationDistancePanel |
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35 extends AbstractUIProvider |
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36 implements ChangeHandler, BlurHandler |
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37 { |
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38 /** The message class that provides i18n strings.*/ |
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39 protected FLYSMessages MESSAGES = GWT.create(FLYSMessages.class); |
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40 |
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41 |
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42 /** The constant name of the input field to enter locations.*/ |
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43 public static final String FIELD_LOCATION = "location"; |
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44 |
43
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45 /** The constant name of the input field to enter distance.*/ |
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46 public static final String FIELD_DISTANCE = "distance"; |
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47 |
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48 /** The constant name of the input field to enter the start of a distance.*/ |
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49 public static final String FIELD_FROM = "from"; |
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50 |
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51 /** The constant name of the input field to enter the end of a distance.*/ |
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52 public static final String FIELD_TO = "to"; |
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53 |
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54 /** The constant name of the input field to enter the step width of a |
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55 * distance.*/ |
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56 public static final String FIELD_WIDTH = "width"; |
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57 |
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58 |
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59 /** The radio group for input mode selection.*/ |
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60 protected DynamicForm mode; |
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61 |
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62 /** A container that will contain the location or the distance panel.*/ |
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63 protected HLayout container; |
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64 |
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65 /** The 'from' value entered in the distance mode.*/ |
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66 protected double from; |
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67 |
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68 /** The 'to' value entered in the distance mode.*/ |
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69 protected double to; |
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70 |
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71 /** The 'step' value entered in the distance mode.*/ |
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72 protected double step; |
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73 |
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74 /** The values entered in the location mode.*/ |
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75 protected double[] values; |
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76 |
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77 |
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78 /** |
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79 * Creates a new LocationDistancePanel instance. |
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80 */ |
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81 public LocationDistancePanel() { |
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82 } |
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83 |
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84 |
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85 /** |
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86 * This method creates a widget that contains a label, a panel with |
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87 * checkboxes to switch the input mode between location and distance input, |
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88 * and a the mode specific panel. |
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89 * |
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90 * @param data The data that might be inserted. |
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91 * |
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92 * @return a panel. |
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93 */ |
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94 public Canvas create(Data data) { |
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95 VLayout layout = new VLayout(); |
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96 |
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97 Label label = new Label(MESSAGES.location_distance_state()); |
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98 Canvas widget = createWidget(data); |
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99 IButton submit = new IButton(MESSAGES.next(), this); |
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100 |
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101 label.setHeight(25); |
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102 |
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103 layout.addMember(label); |
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104 layout.addMember(widget); |
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105 layout.addMember(submit); |
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106 |
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107 return layout; |
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108 } |
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109 |
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110 |
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111 protected Canvas createWidget(Data data) { |
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112 VLayout layout = new VLayout(); |
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113 container = new HLayout(); |
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114 Canvas checkboxPanel = createRadioButtonPanel(); |
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115 |
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116 // the initial view will display the location input mode |
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117 Canvas locationPanel = new DoubleArrayPanel( |
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118 MESSAGES.unitLocation(), |
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119 getLocationValues(), |
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120 this); |
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121 container.addMember(locationPanel); |
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122 |
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123 layout.addMember(checkboxPanel); |
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124 layout.addMember(container); |
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125 |
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126 // TODO Add a table on the right to select locations by mouse click |
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127 |
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128 return layout; |
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129 } |
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130 |
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131 |
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132 /** |
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133 * This method returns the selected data. |
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134 * |
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135 * @return the selected/inserted data. |
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136 */ |
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137 public Data[] getData() { |
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138 // TODO Implement me |
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139 |
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140 return null; |
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141 } |
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142 |
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143 |
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144 /** |
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145 * This method switches the input mode between location and distance input. |
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146 * |
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147 * @param event The click event fired by a RadioButtonGroupItem. |
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148 */ |
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149 public void onChange(ChangeEvent event) { |
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150 String value = (String) event.getValue(); |
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151 |
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152 if (value == null) { |
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153 return; |
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154 } |
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155 |
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156 if (value.equals(FIELD_LOCATION)) { |
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157 Canvas locationPanel = new DoubleArrayPanel( |
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158 MESSAGES.unitLocation(), |
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159 getLocationValues(), |
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160 this); |
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161 |
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162 container.removeMembers(container.getMembers()); |
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163 container.addMember(locationPanel); |
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164 } |
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165 else { |
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166 Canvas distancePanel = new DoubleRangePanel( |
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167 MESSAGES.unitFrom(), MESSAGES.unitTo(), MESSAGES.unitWidth(), |
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168 getFrom(), getTo(), getStep(), |
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169 250, |
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170 this); |
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171 |
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172 container.removeMembers(container.getMembers()); |
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173 container.addMember(distancePanel); |
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174 } |
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175 } |
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176 |
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177 |
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178 /** |
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179 * This method is used to validate the inserted data in the form fields. |
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180 * |
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181 * @param event The BlurEvent that gives information about the FormItem that |
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182 * has been modified and its value. |
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183 */ |
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184 public void onBlur(BlurEvent event) { |
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185 FormItem item = event.getItem(); |
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186 String field = item.getFieldName(); |
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187 |
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188 if (field == null) { |
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189 return; |
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190 } |
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191 |
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192 if (field.equals(DoubleArrayPanel.FIELD_NAME)) { |
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193 DoubleArrayPanel p = (DoubleArrayPanel) event.getForm(); |
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194 |
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195 if (p.validateForm(item)) { |
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196 setLocationValues(p.getInputValues(item)); |
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197 } |
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198 } |
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199 else { |
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200 DoubleRangePanel p = (DoubleRangePanel) event.getForm(); |
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201 |
43
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202 if (p.validateForm(item)) { |
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203 setFrom(p.getFrom()); |
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204 setTo(p.getTo()); |
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205 setStep(p.getStep()); |
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206 } |
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207 } |
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208 } |
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209 |
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210 |
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211 /** |
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212 * This method creates the panel that contains the checkboxes to switch |
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213 * between the input mode 'location' and 'distance'. |
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214 * |
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215 * @return the checkbox panel. |
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216 */ |
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217 protected Canvas createRadioButtonPanel() { |
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218 mode = new DynamicForm(); |
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219 |
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220 RadioGroupItem radio = new RadioGroupItem("mode"); |
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221 radio.setShowTitle(false); |
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222 radio.setVertical(false); |
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223 |
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224 LinkedHashMap values = new LinkedHashMap(); |
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225 values.put(FIELD_LOCATION, MESSAGES.location()); |
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226 values.put(FIELD_DISTANCE, MESSAGES.distance()); |
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227 |
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228 LinkedHashMap initial = new LinkedHashMap(); |
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229 initial.put("mode", FIELD_LOCATION); |
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230 |
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231 radio.setValueMap(values); |
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232 radio.addChangeHandler(this); |
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233 |
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234 mode.setFields(radio); |
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235 mode.setValues(initial); |
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236 |
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237 return mode; |
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238 } |
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239 |
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240 |
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241 protected double getFrom() { |
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242 return from; |
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243 } |
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244 |
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245 |
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246 protected void setFrom(double from) { |
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247 this.from = from; |
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248 } |
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249 |
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250 |
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251 protected double getTo() { |
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252 return to; |
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253 } |
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254 |
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255 |
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256 protected void setTo(double to) { |
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257 this.to = to; |
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258 } |
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259 |
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260 |
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261 protected double getStep() { |
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262 return step; |
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263 } |
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264 |
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265 |
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266 protected void setStep(double step) { |
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267 this.step = step; |
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268 } |
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269 |
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270 |
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271 protected double[] getLocationValues() { |
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272 return values; |
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273 } |
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274 |
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275 |
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276 protected void setLocationValues(double[] values) { |
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277 this.values = values; |
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278 } |
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279 } |
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280 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |