annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/GaugePanel.java @ 3825:e91c5112d67c

Implement a scrolling gauge info tree flys-client/trunk@5515 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Wed, 19 Sep 2012 07:59:35 +0000
parents 4e33aa341e51
children 9cbc8311e820
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.user.client.rpc.AsyncCallback;
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7 import com.google.gwt.user.client.ui.Tree;
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8 import com.google.gwt.user.client.ui.TreeItem;
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9 import com.google.gwt.user.client.ui.Grid;
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10 import com.google.gwt.user.client.ui.DecoratorPanel;
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11 import com.google.gwt.user.client.ui.ScrollPanel;
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12 import com.google.gwt.user.client.ui.Label;
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13 import com.google.gwt.user.client.ui.HorizontalPanel;
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14
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15 import com.smartgwt.client.types.Overflow;
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16 import com.smartgwt.client.types.Alignment;
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17 import com.smartgwt.client.widgets.layout.SectionStackSection;
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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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20 import com.smartgwt.client.widgets.events.ResizedHandler;
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21 import com.smartgwt.client.widgets.events.ResizedEvent;
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22
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23 import de.intevation.flys.client.client.FLYSConstants;
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24 import de.intevation.flys.client.client.services.GaugeOverviewInfoService;
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25 import de.intevation.flys.client.client.services.GaugeOverviewInfoServiceAsync;
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26 import de.intevation.flys.client.shared.model.GaugeInfo;
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27 import de.intevation.flys.client.shared.model.RiverInfo;
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28
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29 /**
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30 * The GaugePanel is intendet to be used within a SectionStackSection
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31 * It extends the VLayout by two methods to show and hide the
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32 * section stack section.
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33 */
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34 public class GaugePanel extends VLayout implements ResizedHandler {
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35
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36 /** SectionStackSection where this GaugePanel belongs in*/
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37 private SectionStackSection sectionStack;
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38
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39 /** Name of the river */
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40 private String river;
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41
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42 /** The message class that provides i18n strings.*/
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43 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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44
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45 protected GaugeOverviewInfoServiceAsync gaugeOverviewInfoService =
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46 GWT.create(GaugeOverviewInfoService.class);
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47
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48 protected GaugeTree gaugetree = new GaugeTree();
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49
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50 protected RiverInfoPanel riverinfopanel;
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51
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52 /**
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53 * Creates a new VLayout with a SectionStackSection
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54 * The GaugePanel's SectionStackSection is hidden by default.
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55 * @param sectionStack The section stack section to place the VLayout in.
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56 */
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57 public GaugePanel(SectionStackSection sectionStack) {
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58 setOverflow(Overflow.HIDDEN);
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59 sectionStack.setItems(this);
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60 this.sectionStack = sectionStack;
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61 setStyleName("gaugepanel");
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62 addResizedHandler(this);
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63 }
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64
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65 public void setRiver(String river) {
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66 this.river = river;
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67 this.refresh();
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68 }
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69
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70 /**
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71 * Loads the river info and renders it afterwards
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72 */
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73 public void refresh() {
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74 gaugeOverviewInfoService.getRiverInfo(this.river, new AsyncCallback<RiverInfo>() {
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75 public void onFailure(Throwable e) {
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76 GWT.log("Could not load the river info." + e);
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77 }
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78
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79 public void onSuccess(RiverInfo riverinfo) {
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80 GWT.log("Loaded river info");
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81 renderGaugeOverviewInfo(riverinfo);
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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 public void renderGaugeOverviewInfo(RiverInfo riverinfo) {
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87 removeMembers(getMembers());
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88
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89 riverinfopanel = new RiverInfoPanel(riverinfo);
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90 addMember(riverinfopanel);
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91 addMember(gaugetree);
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92
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93 gaugetree.setGauges(riverinfo.getGauges());
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94 }
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95
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96 @Override
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97 public void onResized(ResizedEvent event) {
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98 /* this height calculation is only an approximation and doesn't reflect
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99 * the real height of the the gaugetree. */
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100 int height = getInnerContentHeight() -
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101 (RiverInfoPanel.HEIGHT +
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102 (2 * RiverInfoPanel.BORDER_WIDTH) +
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103 (2 * RiverInfoPanel.PADDING) +
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104 (2 * RiverInfoPanel.MARGIN));
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105
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106 if (height < 0) {
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107 height = 0;
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108 }
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109
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110 gaugetree.setHeight("" + height + "px");
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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 * Hide the section stack section.
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116 */
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117 public void hide() {
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118 GWT.log("GaugePanel - hide");
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119 this.sectionStack.setHidden(true);
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120 }
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121
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122 /**
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123 * Show the section stack section.
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124 */
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125 public void show() {
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126 GWT.log("GaugePanel - show");
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127 this.sectionStack.setHidden(false);
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128 }
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129
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130 class GaugeTree extends ScrollPanel {
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131
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132 private Tree tree;
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133
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134 public GaugeTree() {
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135 tree = new Tree();
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136 setWidget(tree);
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137 }
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138
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139 /**
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140 * Resets the items of the tree.
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141 * If the list of gauges is empty or null the tree will be empty.
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142 */
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143 public void setGauges(List<GaugeInfo> gauges) {
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144 tree.clear();
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145
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146 if (gauges != null && !gauges.isEmpty()) {
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147
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148 for (GaugeInfo gauge : gauges) {
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149 TreeItem gaugeitem = new GaugeInfoItem(gauge);
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150 tree.addItem(gaugeitem);
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151 }
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152 }
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153 }
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154 }
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155
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156 class RiverInfoPanel extends HorizontalPanel {
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157
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158 public final static int HEIGHT = 30;
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159 public final static int BORDER_WIDTH = 3;
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160 public final static int PADDING = 8;
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161 public final static int MARGIN = 10;
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162
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163 public RiverInfoPanel(RiverInfo riverinfo) {
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164 setStyleName("riverinfopanel");
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165 setHeight("" + HEIGHT + "px");
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166 setVerticalAlignment(ALIGN_MIDDLE);
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167
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168 addLabel(riverinfo.getName(), false);
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169
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170 String kmtext = "";
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171 Double start = riverinfo.getKmStart();
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172 Double end = riverinfo.getKmEnd();
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173
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174 if (!riverinfo.isKmUp()) {
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175 Double tmp = end;
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176 end = start;
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177 start = tmp;
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178 }
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179 if (end != null) {
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180 kmtext += end.toString();
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181 kmtext += " - ";
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182 }
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183 if (start != null) {
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184 kmtext += start.toString();
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185 }
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186 kmtext += " km";
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187
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188 addLabel(kmtext, false);
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189
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190 String qtext = "";
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191 Double qmin = riverinfo.getMinQ();
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192 Double qmax = riverinfo.getMaxQ();
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193 if (qmin != null) {
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194 qtext += qmin.toString();
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195 qtext += " qm/s";
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196 qtext += " - ";
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197 }
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198 if (qmax != null) {
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199 qtext += qmax.toString();
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200 qtext += " qm/s";
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201 }
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202
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203 addLabel(qtext, false);
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204 }
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205
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206 private void addLabel(String text, boolean wordwrap) {
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207 Label label = new Label(text, wordwrap);
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208 add(label);
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209 setCellHeight(label, "" + HEIGHT + "px");
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210 }
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211 }
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212
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213 class GaugeInfoItem extends TreeItem {
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214 public GaugeInfoItem(GaugeInfo gauge) {
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215 GaugeInfoHead gaugeinfohead = new GaugeInfoHead(gauge);
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216 GaugeInfoPanel gaugeinfopanel = new GaugeInfoPanel(gauge);
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217 setWidget(gaugeinfohead);
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218 addItem(gaugeinfopanel);
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219 }
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220 }
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221
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222 class GaugeInfoHead extends HLayout {
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223
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224 public GaugeInfoHead(GaugeInfo gauge) {
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225 setStyleName("gaugeinfohead");
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226 setAutoHeight();
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227 setAutoWidth();
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228
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229 Label label = new Label(gauge.getName(), true);
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230 addMember(label);
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231
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232 Double start = gauge.getKmStart();
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233 Double end = gauge.getKmEnd();
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234 String kmtext = "";
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235 if (start != null) {
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236 kmtext += start.toString();
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237 kmtext += " - ";
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238 }
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239 if (end != null) {
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240 kmtext += end.toString();
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241 }
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242 kmtext +=" km";
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243
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244 label = new Label(kmtext);
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245
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246 addMember(label);
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247 }
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248 }
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249
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250 class GaugeInfoPanel extends DecoratorPanel {
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251 public GaugeInfoPanel(GaugeInfo gauge) {
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252 setStyleName("gaugeinfopanel");
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253 Grid grid = new Grid(4, 2);
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254
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255 grid.setText(0, 0, "W-Bereich [cm]");
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256 grid.setText(0, 1, "" + gauge.getMinW() + " - " + gauge.getMaxW());
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257 grid.setText(1, 0, "Q-Bereich [m²/s]");
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258 grid.setText(1, 1, "" + gauge.getMinQ() + " - " + gauge.getMaxQ());
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259 grid.setText(2, 0, "AEO [km²]");
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260 grid.setText(2, 1, "" + gauge.getAeo());
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261 grid.setText(3, 0, "Pegelnullpunk [NN+m]");
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262 grid.setText(3, 1, "" + gauge.getDatum());
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263
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264 setWidget(grid);
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265 }
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266 }
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267 }

http://dive4elements.wald.intevation.org