Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/chart/ChartOutputTab.java @ 533:34103ab9fe60

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Moved the toolbar stuff of the chart panel into an own class. flys-client/trunk@2024 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 27 May 2011 13:48:25 +0000
parents 0ba7c43e7b62
children e08777967bad
rev   line source
521
fc60822e9c89 Added a new package 'chart' that should be the place where chart relevant classes should be stored. Moved ChartOutputTab into that package.
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diff changeset
1 package de.intevation.flys.client.client.ui.chart;
fc60822e9c89 Added a new package 'chart' that should be the place where chart relevant classes should be stored. Moved ChartOutputTab into that package.
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2
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3 import java.util.Date;
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4
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5 import com.google.gwt.core.client.GWT;
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6
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7 import com.smartgwt.client.widgets.Canvas;
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8 import com.smartgwt.client.widgets.Img;
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9 import com.smartgwt.client.widgets.Label;
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11 import com.smartgwt.client.widgets.layout.HLayout;
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12 import com.smartgwt.client.widgets.layout.VLayout;
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13
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14 import com.smartgwt.client.widgets.events.ResizedEvent;
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15 import com.smartgwt.client.widgets.events.ResizedHandler;
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fc60822e9c89 Added a new package 'chart' that should be the place where chart relevant classes should be stored. Moved ChartOutputTab into that package.
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17 import de.intevation.flys.client.shared.model.Collection;
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18 import de.intevation.flys.client.shared.model.OutputMode;
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19 import de.intevation.flys.client.client.Config;
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c17c593f8732 The chart in the ChartOutputTab is refreshed when there occur any changes in the chart theme panel.
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20 import de.intevation.flys.client.client.event.OutputParameterChangeEvent;
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21 import de.intevation.flys.client.client.event.OutputParameterChangeHandler;
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22 import de.intevation.flys.client.client.ui.CollectionView;
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23 import de.intevation.flys.client.client.ui.OutputTab;
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24
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25
fc60822e9c89 Added a new package 'chart' that should be the place where chart relevant classes should be stored. Moved ChartOutputTab into that package.
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26 /**
fc60822e9c89 Added a new package 'chart' that should be the place where chart relevant classes should be stored. Moved ChartOutputTab into that package.
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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28 */
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29 public class ChartOutputTab
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30 extends OutputTab
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31 implements ResizedHandler, OutputParameterChangeHandler
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32 {
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33 public static final int DEFAULT_CHART_WIDTH = 600;
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34 public static final int DEFAULT_CHART_HEIGHT = 500;
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35
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36 public static final int THEMEPANEL_MIN_WIDTH = 200;
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37
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38
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39
521
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40 /** The canvas that wraps the chart toolbar.*/
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41 protected Canvas tbarPanel;
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42
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43 /** The canvas that wraps the theme editor.*/
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44 protected Canvas left;
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45
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46 /** The canvas that wraps the chart.*/
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47 protected Canvas right;
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49
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50 /**
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51 * The default constructor to create a new ChartOutputTab.
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52 *
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53 * @param title The title of this tab.
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54 * @param collection The Collection which this chart belongs to.
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55 * @param mode The OutputMode.
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56 */
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57 public ChartOutputTab(
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58 String title,
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59 Collection collection,
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60 OutputMode mode,
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61 CollectionView collectionView
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62 ){
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63 super(title, collection, mode);
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64
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65 left = new Canvas();
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66 right = new Canvas();
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67 tbarPanel = new ChartToolbar(collectionView);
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68
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69 left.setBorder("1px solid black");
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70 left.setWidth(THEMEPANEL_MIN_WIDTH);
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71 left.setMinWidth(THEMEPANEL_MIN_WIDTH);
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72 right.setWidth("*");
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73
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74 VLayout vLayout = new VLayout();
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75 vLayout.setMembersMargin(2);
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76
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77 HLayout hLayout = new HLayout();
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78 hLayout.setWidth100();
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79 hLayout.setHeight100();
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80 hLayout.setMembersMargin(10);
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81
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82 hLayout.addMember(left);
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83 hLayout.addMember(right);
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84
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85 ChartThemePanel ctp = new ChartThemePanel(collection, mode);
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86 ctp.addOutputParameterChangeHandler(this);
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87
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88 right.addChild(createChartPanel());
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89 left.addChild(ctp);
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90
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91 vLayout.addMember(tbarPanel);
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92 vLayout.addMember(hLayout);
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94 setPane(vLayout);
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95
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96 right.addResizedHandler(this);
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97 }
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98
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100 /**
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101 * This method is called after the chart panel has resized. It removes the
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102 * chart - if existing - and requests a new one with adjusted size.
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103 *
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104 * @param event The resize event.
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105 */
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106 public void onResized(ResizedEvent event) {
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107 updateChartPanel();
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108 }
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109
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110
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111 /**
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112 * Listens to change event in the chart them panel and updates chart after
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113 * receiving such an event.
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114 *
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115 * @param event The OutputParameterChangeEvent.
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116 */
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117 public void onOutputParameterChanged(OutputParameterChangeEvent event) {
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118 updateChartPanel();
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119 }
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120
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121
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122 public void updateChartPanel() {
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123 Canvas[] children = right.getChildren();
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124 for (Canvas child: children) {
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125 right.removeChild(child);
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126 }
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127
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128 right.addChild(createChartPanel(right.getWidth(), right.getHeight()));
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129 }
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130
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131
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132 protected Canvas createChartPanel() {
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133 return createChartPanel(DEFAULT_CHART_WIDTH, DEFAULT_CHART_HEIGHT);
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134 }
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135
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136
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137 protected Canvas createChartPanel(int width, int height) {
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138 Img chart = getChartImg(width, height);
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139 chart.setWidth100();
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140 chart.setHeight100();
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141
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142 return chart;
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143
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144 }
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145
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146
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147 protected Canvas createThemeControlPanel() {
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148 Label label = new Label("Themensteuerung");
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149 label.setHeight(25);
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150 label.setMargin(5);
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151
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152 return label;
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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 * Builds the chart image and returns it.
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158 *
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159 * @param width The chart width.
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160 * @param height The chart height.
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161 *
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162 * @return the chart image.
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163 */
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164 protected Img getChartImg(int width, int height) {
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165 return new Img(getImgUrl(width, height));
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166 }
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167
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168
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169 /**
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170 * Builds the URL that points to the chart image.
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171 *
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172 * @param width The width of the requested chart.
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173 * @param height The height of the requested chart.
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174 *
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175 * @return the URL to the chart image.
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176 */
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177 protected String getImgUrl(int width, int height) {
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178 Config config = Config.getInstance();
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179
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180 String imgUrl = GWT.getModuleBaseURL();
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181 imgUrl += "chart";
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182 imgUrl += "?uuid=" + collection.identifier();
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183 imgUrl += "&type=" + mode.getName();
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184 imgUrl += "&server=" + config.getServerUrl();
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185 imgUrl += "&locale=" + config.getLocale();
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186 imgUrl += "&timestamp=" + new Date().getTime();
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187 imgUrl += "&width=" + Integer.toString(width);
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188 imgUrl += "&height=" + Integer.toString(height);
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189
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190 return imgUrl;
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191 }
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192 }
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193 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org