Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/AbstractUIProvider.java @ 788:dfbc6693247e
Integrated a stacked panel on the right side of the ParameterList that enables users to see calculation results and the helper panel at the same time.
flys-client/trunk@2289 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 06 Jul 2011 12:31:32 +0000 |
parents | 9f16ac843dda |
children | 77a549772aa9 |
rev | line source |
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41
87a44f8e25cc
Added a new widget that enables the user to enter a location or a distance in a single step.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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1 package de.intevation.flys.client.client.ui; |
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Added a new widget that enables the user to enter a location or a distance in a single step.
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parents:
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2 |
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3 import java.util.ArrayList; |
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4 import java.util.List; |
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5 |
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6 import com.google.gwt.core.client.GWT; |
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7 |
562
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Introduced a client side validation before new user data are sent to the server - the range/location panel already implements this validation.
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8 import com.smartgwt.client.util.SC; |
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Integrated a stacked panel on the right side of the ParameterList that enables users to see calculation results and the helper panel at the same time.
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9 import com.smartgwt.client.widgets.Button; |
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10 import com.smartgwt.client.widgets.Canvas; |
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Adjusted the look of the 'next' button in the parameter panel.
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11 import com.smartgwt.client.widgets.Img; |
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12 import com.smartgwt.client.widgets.events.ClickEvent; |
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13 import com.smartgwt.client.widgets.events.ClickHandler; |
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14 import com.smartgwt.client.widgets.layout.VLayout; |
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15 |
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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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16 import de.intevation.flys.client.client.FLYSConstants; |
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17 import de.intevation.flys.client.client.event.HasStepBackHandlers; |
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18 import de.intevation.flys.client.client.event.HasStepForwardHandlers; |
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19 import de.intevation.flys.client.client.event.StepBackEvent; |
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20 import de.intevation.flys.client.client.event.StepBackHandler; |
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21 import de.intevation.flys.client.client.event.StepForwardEvent; |
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22 import de.intevation.flys.client.client.event.StepForwardHandler; |
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23 import de.intevation.flys.client.shared.model.Data; |
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Implemented the createOld() of WQAdaptedInputPanel.
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24 import de.intevation.flys.client.shared.model.DataItem; |
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Introduced a data structure DataList to manage to list of Data objects of a single state.
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25 import de.intevation.flys.client.shared.model.DataList; |
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26 import de.intevation.flys.client.shared.model.Artifact; |
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27 |
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28 /** |
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29 * An abstract UIProvider that provides some basic methods. |
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30 * |
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31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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parents:
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32 */ |
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33 public abstract class AbstractUIProvider |
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34 implements UIProvider, HasStepForwardHandlers, ClickHandler, |
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35 HasStepBackHandlers |
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36 { |
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37 /** The message class that provides i18n strings.*/ |
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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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38 protected FLYSConstants MSG = GWT.create(FLYSConstants.class); |
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39 |
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40 |
41
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41 /** The StepForwardHandlers.*/ |
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42 protected List<StepForwardHandler> forwardHandlers; |
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43 |
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44 /** The StepForwardHandlers.*/ |
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45 protected List<StepBackHandler> backHandlers; |
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46 |
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Improved the positioning of helper widgets and some layout specific stuff.
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47 /** The container that is used to position helper widgets.*/ |
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Integrated a stacked panel on the right side of the ParameterList that enables users to see calculation results and the helper panel at the same time.
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48 protected VLayout helperContainer; |
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49 |
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50 /** The artifact that contains status information.*/ |
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51 protected Artifact artifact; |
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52 |
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53 /** |
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54 * Creates a new UIProvider instance of this class. |
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55 */ |
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56 public AbstractUIProvider() { |
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57 forwardHandlers = new ArrayList<StepForwardHandler>(); |
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58 backHandlers = new ArrayList<StepBackHandler>(); |
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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 * Appends a StepBackHandler that wants to listen to StepBackEvents. |
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64 * |
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65 * @param handler A new StepBackHandler. |
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66 */ |
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67 public void addStepBackHandler(StepBackHandler handler) { |
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68 if (handler != null) { |
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69 backHandlers.add(handler); |
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70 } |
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71 } |
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72 |
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73 |
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74 /** |
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75 * Appends a StepForwardHandler that wants to listen to StepForwardEvents. |
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76 * |
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77 * @param handler A new StepForwardHandler. |
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78 */ |
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79 public void addStepForwardHandler(StepForwardHandler handler) { |
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80 if (handler != null) { |
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81 forwardHandlers.add(handler); |
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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 /** |
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87 * This method is called after the user has clicked one of the buttons to |
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88 * step back to a previous state. |
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89 * |
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90 * @param e The StepBackEvent. |
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91 */ |
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92 protected void fireStepBackEvent(StepBackEvent e) { |
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93 GWT.log("AbstractUIProvider - fireStepBackEvent() handlers: " + backHandlers.size()); |
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94 for (StepBackHandler handler: backHandlers) { |
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95 handler.onStepBack(e); |
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96 } |
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97 } |
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98 |
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99 |
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100 /** |
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101 * This method is called after the user has clicked on the 'next' button to |
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102 * step to the next state. |
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103 * |
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104 * @param e The StepForwardEvent. |
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105 */ |
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106 protected void fireStepForwardEvent(StepForwardEvent e) { |
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107 GWT.log("AbstractUIProvider - fireStepForwardEvent() handlers: " + forwardHandlers.size()); |
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108 for (StepForwardHandler handler: forwardHandlers) { |
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109 handler.onStepForward(e); |
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110 } |
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111 } |
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112 |
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113 |
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114 /** |
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115 * This method is used to listen to click events on the 'next' button. The |
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116 * fireStepForwardEvent() method is called here. |
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117 * |
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118 * @param e The click event. |
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119 */ |
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120 public void onClick(ClickEvent e) { |
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121 List<String> errors = validate(); |
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122 if (errors == null || errors.isEmpty()) { |
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123 Data[] data = getData(); |
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124 fireStepForwardEvent(new StepForwardEvent(data)); |
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125 } |
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126 else { |
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127 StringBuilder sb = new StringBuilder(); |
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128 |
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129 for (String error: errors) { |
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130 sb.append(error); |
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131 sb.append("<br>"); |
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132 } |
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133 |
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134 SC.warn(sb.toString()); |
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135 } |
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136 } |
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137 |
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138 |
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139 /** |
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140 * Creates the 'next' button to step forward to the next state. |
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141 * |
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142 * @return the 'next' button. |
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143 */ |
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144 protected Canvas getNextButton() { |
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145 Button next = new Button(MSG.buttonNext()); |
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146 next.addClickHandler(this); |
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147 |
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148 return next; |
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149 } |
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150 |
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151 |
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152 /** |
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153 * Creates the 'back' button to step back to a previous state. |
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154 * |
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155 * @param targetState The identifier of the target state. |
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156 * |
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157 * @return the 'back' button. |
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158 */ |
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159 protected Canvas getBackButton(final String targetState) { |
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160 String url = GWT.getHostPageBaseURL() + MSG.imageBack(); |
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161 Img back = new Img(url, 16, 16); |
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162 |
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163 back.addClickHandler(new ClickHandler() { |
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164 public void onClick(ClickEvent event) { |
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165 fireStepBackEvent(new StepBackEvent(targetState)); |
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166 } |
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167 }); |
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168 |
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169 return back; |
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170 } |
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171 |
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172 |
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173 /** |
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174 * This method injects a container that is used to position helper widgets. |
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175 * |
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176 * @param helperContainer A container that is used to position helper |
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177 * widgets. |
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178 */ |
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179 public void setContainer(VLayout helperContainer) { |
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180 this.helperContainer = helperContainer; |
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181 } |
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182 |
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183 |
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184 /** |
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185 * This method injects an artifact that contains the status information. |
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186 * |
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187 * @param art An artifact containing status information. |
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188 */ |
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189 public void setArtifact(Artifact art) { |
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190 this.artifact = art; |
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191 } |
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192 |
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193 |
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194 /** |
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195 * This method greps the Data with name <i>name</i> from the list and |
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196 * returns it. |
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197 * |
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198 * @param items A list of Data. |
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199 * @param name The name of the Data that we are searching for. |
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200 * |
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201 * @return the Data with the name <i>name</i>. |
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202 */ |
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203 protected Data getData(List<Data> data, String name) { |
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204 for (Data d: data) { |
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205 if (name.equals(d.getLabel())) { |
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206 return d; |
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207 } |
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208 } |
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209 |
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210 return null; |
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211 } |
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212 |
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213 /** |
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214 * This method greps the DataItem with name <i>name</i> from the list and |
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215 * returns it. |
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216 * |
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217 * @param items A list of DataItems. |
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218 * @param name The name of the DataItem that we are searching for. |
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219 * |
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220 * @return the DataItem with the name <i>name</i>. |
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221 */ |
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222 protected DataItem getDataItem(DataItem[] items, String name) { |
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223 for (DataItem item: items) { |
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224 if (name.equals(item.getLabel())) { |
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225 return item; |
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226 } |
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227 } |
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228 |
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229 return null; |
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230 } |
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231 |
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232 |
562
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233 public List<String> validate() { |
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234 return new ArrayList<String>(); |
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235 } |
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236 |
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237 |
247
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238 /** |
41
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239 * This method needs to be implemented by concrete subclasses. It should |
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240 * create a new Canvas object with a representation of <i>data</i>. |
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241 * |
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242 * @param data The data that should be displayed. |
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243 * |
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244 * @return a Canvas object that displays <i>data</i>. |
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245 */ |
51
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246 public abstract Canvas create(DataList data); |
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247 |
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248 |
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249 /** |
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250 * This method needs to be implemented by concrete subclasses. It should |
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251 * return the selected data. |
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252 * |
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253 * @return the selected data. |
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254 */ |
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255 protected abstract Data[] getData(); |
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256 } |
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257 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |