Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/LoadingPanel.java @ 870:d5fb88ba99d2

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Display status message and progress information in the WSPLGEN loading panel. flys-client/trunk@2690 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 09 Sep 2011 15:08:15 +0000
parents 43f520f923a8
children d7c322a3bb32
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.List;
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4
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5 import com.google.gwt.core.client.GWT;
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6 import com.google.gwt.resources.client.ImageResource;
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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.layout.VLayout;
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17
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18 import de.intevation.flys.client.client.Config;
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19 import de.intevation.flys.client.client.FLYSImages;
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20 import de.intevation.flys.client.client.services.DescribeArtifactService;
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21 import de.intevation.flys.client.client.services.DescribeArtifactServiceAsync;
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22 import de.intevation.flys.client.shared.model.Artifact;
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23 import de.intevation.flys.client.shared.model.CalculationMessage;
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24
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25
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26 public class LoadingPanel extends Canvas {
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27
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28 public static final int UPDATE_INTERVAL = 1000 * 3;
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29
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30 public static final DescribeArtifactServiceAsync describe =
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31 GWT.create(DescribeArtifactService.class);
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32
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33 private FLYSImages IMAGES = GWT.create(FLYSImages.class);
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34
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35
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36 protected CollectionView parent;
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37 protected Artifact artifact;
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38
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39 protected VLayout dialog;
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40 protected Label msg;
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41 protected Label title;
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42
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43 protected int i;
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45
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46 public LoadingPanel(CollectionView parent, Artifact artifact) {
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47 super();
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48
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49 this.parent = parent;
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50 this.artifact = artifact;
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51 this.msg = new Label("");
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52 this.title = new Label("");
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53 this.dialog = createDialog();
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54
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55 this.i = 0;
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56
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57 initLayout();
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58 startTimer();
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59 }
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60
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61
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62 private void initLayout() {
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63 setWidth("100%");
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64 setHeight("98%");
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65 setBackgroundColor("#22AAFF");
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66 setOpacity(50);
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67 setPosition(Positioning.RELATIVE);
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68
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69 parent.addChild(this);
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70 parent.addChild(dialog);
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71 dialog.moveTo(0, 20);
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72 moveTo(0, 7);
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73 }
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74
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75
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76 public void setArtifact(Artifact artifact) {
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77 this.artifact = artifact;
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78 }
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79
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80
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81 protected VLayout createDialog() {
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82 title.setStyleName("loading-title");
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83 title.setHeight(25);
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84 title.setWidth100();
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85
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86 msg.setStyleName("loading-message");
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87 msg.setValign(VerticalAlignment.TOP);
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88 msg.setWidth100();
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89 msg.setHeight(100);
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90
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91 ImageResource res = IMAGES.loading();
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92 Img img = new Img(res.getURL(), 25, 25);
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93
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94 VLayout box = new VLayout();
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95 box.setStyleName("loading-box");
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96 box.setAlign(VerticalAlignment.TOP);
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97 box.setDefaultLayoutAlign(VerticalAlignment.TOP);
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98 box.addMember(title);
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99 box.addMember(msg);
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100 box.setMembersMargin(0);
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101 box.setHeight(125);
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102 box.setWidth(275);
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103
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104 dialog = new VLayout();
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105 dialog.setAlign(Alignment.CENTER);
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106 dialog.setDefaultLayoutAlign(Alignment.CENTER);
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107 dialog.setMembersMargin(5);
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108 dialog.setHeight100();
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109 dialog.setWidth100();
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110
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111 dialog.addMember(img);
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112 dialog.addMember(box);
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113
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114 return dialog;
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115 }
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117
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118 private void startTimer() {
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119 Timer t = new Timer() {
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120 @Override
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121 public void run() {
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122 update();
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123 }
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124 };
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125 t.schedule(UPDATE_INTERVAL);
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126 }
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127
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128
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129 protected void update() {
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130 updateMessage();
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131
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132 final Config config = Config.getInstance();
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133 final String url = config.getServerUrl();
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134 final String locale = config.getLocale();
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135
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136 describe.describe(url, locale, artifact, new AsyncCallback<Artifact>() {
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137 public void onFailure(Throwable t) {
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138 GWT.log("Error while DESCRIBE artifact: " + t.getMessage());
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139 // SC.warn()...
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140 startTimer();
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141 }
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142
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143 public void onSuccess(Artifact artifact) {
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144 GWT.log("Successfully DESCRIBE artifact.");
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145
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146 setArtifact(artifact);
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147
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148 if (artifact.isInBackground()) {
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149 startTimer();
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150 }
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151 else {
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152 finish();
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153 }
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154 }
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155 });
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156 }
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157
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158
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159 protected void updateMessage() {
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160 List<CalculationMessage> messages = artifact.getBackgroundMessages();
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161 if (messages != null && messages.size() > 0) {
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162 CalculationMessage calcMsg = messages.get(0);
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163 title.setContents(getStepTitle(calcMsg));
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164 msg.setContents(calcMsg.getMessage());
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165 }
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166 else {
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167 title.setContents("Berechnung wurde gestartet.");
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168 }
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169 }
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170
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171
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172 protected String getStepTitle(CalculationMessage msg) {
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173 return "Schritt " + msg.getCurrentStep() + "/" + msg.getSteps();
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174 }
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175
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176
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177 private void finish() {
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178 parent.removeChild(this);
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179 parent.removeChild(dialog);
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180 }
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181 }
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182 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org