Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/SelectProvider.java @ 30:5709bd8f4d7c
Added a new widget that combines the module and the river selection. Users can now choose the desired plugin and river in one step.
flys-client/trunk@1433 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 09 Mar 2011 09:41:45 +0000 |
parents | c128d675386b |
children | d692e2ff95e2 |
rev | line source |
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Added UIProviders that are used to create widgets for entering data.
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parents:
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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.ArrayList; |
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4 import java.util.LinkedHashMap; |
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5 import java.util.List; |
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6 |
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7 import com.google.gwt.core.client.GWT; |
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8 |
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9 import com.smartgwt.client.types.VerticalAlignment; |
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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.events.ClickEvent; |
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14 import com.smartgwt.client.widgets.events.ClickHandler; |
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15 import com.smartgwt.client.widgets.form.DynamicForm; |
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16 import com.smartgwt.client.widgets.form.fields.ComboBoxItem; |
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17 import com.smartgwt.client.widgets.layout.HLayout; |
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18 import com.smartgwt.client.widgets.layout.VLayout; |
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19 |
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20 import de.intevation.flys.client.shared.model.Data; |
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21 import de.intevation.flys.client.shared.model.DataItem; |
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22 import de.intevation.flys.client.shared.model.DefaultData; |
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23 import de.intevation.flys.client.shared.model.DefaultDataItem; |
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24 |
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25 import de.intevation.flys.client.client.FLYSMessages; |
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26 import de.intevation.flys.client.client.event.HasStepForwardHandlers; |
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27 import de.intevation.flys.client.client.event.StepForwardEvent; |
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28 import de.intevation.flys.client.client.event.StepForwardHandler; |
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29 |
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30 |
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31 /** |
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32 * This UIProvider displays the DataItems of the Data object in a combo box. |
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33 * |
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34 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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35 */ |
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36 public class SelectProvider implements UIProvider, HasStepForwardHandlers, |
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37 ClickHandler |
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38 { |
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39 /** The message class that provides i18n strings.*/ |
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40 protected FLYSMessages messages = GWT.create(FLYSMessages.class); |
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41 |
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42 /** The StepForwardHandlers.*/ |
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43 protected List<StepForwardHandler> forwardHandlers; |
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44 |
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45 /** The combobox.*/ |
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46 protected ComboBoxItem combobox; |
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47 |
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48 |
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49 /** |
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50 * Creates a new UIProvider instance of this class. |
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51 */ |
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52 public SelectProvider() { |
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53 forwardHandlers = new ArrayList<StepForwardHandler>(); |
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54 } |
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55 |
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56 |
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57 public void addStepForwardHandler(StepForwardHandler handler) { |
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58 if (handler != null) { |
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59 forwardHandlers.add(handler); |
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60 } |
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61 } |
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62 |
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63 |
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64 /** |
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65 * This method is called after the user has clicked on the 'next' button to |
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66 * step to the next state. |
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67 * |
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68 * @param e The StepForwardEvent. |
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69 */ |
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70 protected void fireStepForwardEvent(StepForwardEvent e) { |
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71 GWT.log("SelectProvider - fireStepForwardEvent() handlers: " + forwardHandlers.size()); |
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72 for (StepForwardHandler handler: forwardHandlers) { |
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73 handler.onStepForward(e); |
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74 } |
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75 } |
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76 |
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77 public void onClick(ClickEvent e) { |
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78 Data[] data = getData(); |
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79 |
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80 SelectProvider.this.fireStepForwardEvent(new StepForwardEvent(data)); |
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81 } |
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82 |
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83 /** |
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84 * This method currently returns a |
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85 * {@link com.smartgwt.client.widgets.form.DynamicForm} that contains all |
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86 * data items in a combobox stored in <i>data</i>. |
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87 * |
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88 * @param data The {@link Data} object. |
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89 * |
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90 * @return a combobox. |
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91 */ |
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92 public Canvas create(Data data) { |
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93 VLayout v = new VLayout(); |
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94 |
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95 Canvas content = createWidget(data); |
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96 |
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97 IButton button = new IButton(messages.next(), this); |
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98 |
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99 v.addMember(content); |
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100 v.addMember(button); |
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101 |
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102 return v; |
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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 creates the content of the widget. |
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108 * |
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109 * @param data The {@link Data} object. |
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110 * |
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111 * @return a combobox. |
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112 */ |
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113 protected Canvas createWidget(Data data) { |
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114 GWT.log("SelectProvider - create()"); |
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115 |
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116 HLayout layout = new HLayout(); |
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117 Label label = new Label(messages.river_selection()); |
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118 DynamicForm form = new DynamicForm(); |
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119 combobox = new ComboBoxItem("river"); |
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120 |
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121 LinkedHashMap<String, String> it = new LinkedHashMap<String, String>(); |
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122 |
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123 for (DataItem item: data.getItems()) { |
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124 GWT.log("Add item: " + item.getLabel()); |
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125 it.put(item.getStringValue(), item.getLabel()); |
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126 } |
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127 |
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128 label.setWidth(50); |
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129 combobox.setValueMap(it); |
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130 combobox.setShowTitle(false); |
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131 form.setItems(combobox); |
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132 |
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133 layout.addMember(label); |
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134 layout.addMember(form); |
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135 |
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136 label.setValign(VerticalAlignment.TOP); |
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137 layout.setAlign(VerticalAlignment.TOP); |
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138 |
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139 return layout; |
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140 } |
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141 |
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142 |
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143 protected Data[] getData() { |
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144 String selection = combobox.getValueAsString(); |
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145 DataItem item = new DefaultDataItem("river", null, selection); |
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146 |
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147 return new Data[] { new DefaultData( |
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148 "river", null, null, new DataItem[] { item }, null) }; |
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149 } |
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150 } |
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |