Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/LoadingPanel.java @ 1432:40f4137a2c31

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Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state). flys-client/trunk@3386 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 12 Dec 2011 09:11:28 +0000
parents bc06a671ef60
children 360e22afb98b
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.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 import com.google.gwt.user.client.Timer;
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8 import com.google.gwt.user.client.rpc.AsyncCallback;
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9
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10 import com.smartgwt.client.types.Alignment;
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11 import com.smartgwt.client.types.Positioning;
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12 import com.smartgwt.client.types.VerticalAlignment;
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13 import com.smartgwt.client.widgets.Canvas;
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14 import com.smartgwt.client.widgets.Img;
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15 import com.smartgwt.client.widgets.Label;
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16 import com.smartgwt.client.widgets.events.ClickEvent;
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17 import com.smartgwt.client.widgets.events.ClickHandler;
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18 import com.smartgwt.client.widgets.layout.HLayout;
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19 import com.smartgwt.client.widgets.layout.VLayout;
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21 import de.intevation.flys.client.client.Config;
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22 import de.intevation.flys.client.client.FLYSConstants;
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23 import de.intevation.flys.client.client.event.HasStepBackHandlers;
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24 import de.intevation.flys.client.client.event.StepBackEvent;
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25 import de.intevation.flys.client.client.event.StepBackHandler;
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26 import de.intevation.flys.client.client.services.DescribeArtifactService;
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27 import de.intevation.flys.client.client.services.DescribeArtifactServiceAsync;
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28 import de.intevation.flys.client.shared.model.Artifact;
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29 import de.intevation.flys.client.shared.model.ArtifactDescription;
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30 import de.intevation.flys.client.shared.model.CalculationMessage;
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31 import de.intevation.flys.client.shared.model.DataList;
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32
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33
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34 public class LoadingPanel extends Canvas implements HasStepBackHandlers {
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35
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36 public static final int UPDATE_INTERVAL = 1000 * 3;
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37
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38 public static final DescribeArtifactServiceAsync describe =
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39 GWT.create(DescribeArtifactService.class);
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40
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41 private FLYSConstants MSG = GWT.create(FLYSConstants.class);
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44 protected List<StepBackHandler> handlers;
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45
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46 protected CollectionView parent;
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47 protected Artifact artifact;
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48
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49 protected VLayout dialog;
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50 protected HLayout cancelRow;
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51 protected Label msg;
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52 protected Label title;
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53
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54 protected int i;
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55
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56
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57 public LoadingPanel(CollectionView parent, Artifact artifact) {
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58 super();
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59
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60 this.handlers = new ArrayList<StepBackHandler>();
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61 this.parent = parent;
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62 this.artifact = artifact;
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63 this.msg = new Label("");
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64 this.title = new Label("");
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65 this.dialog = createDialog();
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66
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67 this.i = 0;
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68
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69 initLayout();
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70 startTimer();
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71 }
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72
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73
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74 private void initLayout() {
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75 setWidth("100%");
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76 setHeight("98%");
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77 setBackgroundColor("#7f7f7f");
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78 setOpacity(50);
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79 setPosition(Positioning.RELATIVE);
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80
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81 parent.addChild(this);
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82 parent.addChild(dialog);
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83 dialog.moveTo(0, 20);
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84 moveTo(0, 7);
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85 }
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86
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87
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88 public void setArtifact(Artifact artifact) {
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89 this.artifact = artifact;
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90 }
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91
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92
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93 public Artifact getArtifact() {
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94 return artifact;
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95 }
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96
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97
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98 @Override
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99 public void addStepBackHandler(StepBackHandler handler) {
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100 if (handler != null) {
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101 handlers.add(handler);
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102 }
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103 }
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104
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106 /**
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107 * This method is called after the user has clicked the button to cancel the
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108 * current process.
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109 *
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110 * @param e The StepBackEvent.
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111 */
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112 protected void fireStepBackEvent(StepBackEvent e) {
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113 for (StepBackHandler handler: handlers) {
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114 handler.onStepBack(e);
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115 }
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116 }
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117
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118
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119 protected VLayout createDialog() {
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120
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121 String baseUrl = GWT.getHostPageBaseURL();
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122
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123 title.setStyleName("loading-title");
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124 title.setHeight(25);
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125 title.setWidth100();
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126
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127 msg.setStyleName("loading-message");
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128 msg.setValign(VerticalAlignment.TOP);
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129 msg.setWidth100();
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130 msg.setHeight(100);
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131
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132 Img img = new Img(baseUrl + MSG.loadingImg(), 25, 25);
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133
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134 Label cancelLabel = new Label(MSG.cancelCalculationLabel());
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135 Img cancel = new Img(baseUrl + MSG.cancelCalculation(), 25, 25);
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136 cancel.addClickHandler(new ClickHandler() {
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137 @Override
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138 public void onClick(ClickEvent e) {
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139 cancel();
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140 }
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141 });
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142
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143 cancelRow = new HLayout();
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144 cancelRow.setHeight(27);
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145 cancelRow.setWidth100();
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146 cancelRow.addMember(cancel);
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147 cancelRow.addMember(cancelLabel);
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148
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149 VLayout box = new VLayout();
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150 box.setStyleName("loading-box");
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151 box.setAlign(VerticalAlignment.TOP);
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152 box.setDefaultLayoutAlign(VerticalAlignment.TOP);
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153 box.addMember(title);
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154 box.addMember(msg);
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155 box.addMember(cancelRow);
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156 box.setMembersMargin(0);
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157 box.setHeight(125);
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158 box.setWidth(275);
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159
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160 dialog = new VLayout();
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161 dialog.setAlign(Alignment.CENTER);
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162 dialog.setDefaultLayoutAlign(Alignment.CENTER);
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163 dialog.setMembersMargin(5);
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164 dialog.setHeight100();
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165 dialog.setWidth100();
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166
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167 dialog.addMember(img);
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168 dialog.addMember(box);
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169
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170 return dialog;
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171 }
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172
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173
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174 public String getTargetState() {
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175 ArtifactDescription desc = getArtifact().getArtifactDescription();
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176 DataList[] oldData = desc.getOldData();
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177
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178 return oldData[oldData.length -1].getState();
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179 }
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180
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181
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182 private void startTimer() {
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183 Timer t = new Timer() {
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184 @Override
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185 public void run() {
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186 update();
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187 }
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188 };
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189 t.schedule(UPDATE_INTERVAL);
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190 }
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191
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192
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193 protected void update() {
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194 updateMessage();
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195
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196 final Config config = Config.getInstance();
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197 final String locale = config.getLocale();
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198
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199 describe.describe(locale, artifact, new AsyncCallback<Artifact>() {
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200 public void onFailure(Throwable t) {
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201 GWT.log("Error while DESCRIBE artifact: " + t.getMessage());
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202
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203 startTimer();
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204 }
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205
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206 public void onSuccess(Artifact artifact) {
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207 GWT.log("Successfully DESCRIBE artifact.");
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208
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209 setArtifact(artifact);
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210
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211 if (artifact.isInBackground()) {
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212 startTimer();
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213 }
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214 else {
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215 finish();
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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
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221
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222 protected void updateMessage() {
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223 List<CalculationMessage> messages = artifact.getBackgroundMessages();
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224 if (messages != null && messages.size() > 0) {
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225 CalculationMessage calcMsg = messages.get(0);
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226 title.setContents(getStepTitle(calcMsg));
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227 msg.setContents(calcMsg.getMessage());
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228 }
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229 else {
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d7c322a3bb32 Introduced i18n for the loading panel used during floodmap calculation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 870
diff changeset
230 title.setContents(MSG.calculationStarted());
870
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
231 }
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
232 }
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
233
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
234
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
235 protected String getStepTitle(CalculationMessage msg) {
878
d7c322a3bb32 Introduced i18n for the loading panel used during floodmap calculation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 870
diff changeset
236 return MSG.step() + " " + msg.getCurrentStep() + "/" + msg.getSteps();
870
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
237 }
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
238
d5fb88ba99d2 Display status message and progress information in the WSPLGEN loading panel.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 865
diff changeset
239
1432
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
240 private void cancel() {
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
241 fireStepBackEvent(new StepBackEvent(getTargetState()));
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
242 parent.removeChild(dialog);
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
243 parent.removeChild(this);
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
244 }
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
245
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
246
862
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
247 private void finish() {
1432
40f4137a2c31 Added a cancel button to the LoadingPanel which stops running WSPLGEN calculations (realized by returning to the previous state).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1425
diff changeset
248 parent.removeChild(dialog);
862
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
249 parent.removeChild(this);
1270
ea9a73782de4 Bugfix: #321 Refresh the parameter list after a calculation is finished.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 898
diff changeset
250 parent.setArtifact(artifact);
862
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
251 }
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
252 }
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
253 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org