Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/QWSeriesCollection.java @ 4031:e4e345d81a65

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issue889/2
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 04 Oct 2012 14:54:44 +0200
parents e727e3ebdf85
children
rev   line source
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1 package de.intevation.flys.artifacts.services;
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2
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3 import de.intevation.flys.artifacts.model.fixings.QWI;
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4
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5 import de.intevation.flys.java2d.ShapeUtils;
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6
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7 import de.intevation.flys.jfree.ShapeRenderer;
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8
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9 import java.awt.BasicStroke;
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10 import java.awt.Color;
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11 import java.awt.Paint;
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12 import java.awt.Shape;
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13
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14 import java.awt.geom.Rectangle2D;
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15
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16 import java.text.DateFormat;
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17 import java.text.SimpleDateFormat;
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18
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19 import java.util.ArrayList;
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20 import java.util.Date;
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21 import java.util.HashMap;
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22 import java.util.List;
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23 import java.util.Map;
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24
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25 import org.jfree.chart.LegendItem;
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26 import org.jfree.chart.LegendItemCollection;
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27
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28 import org.jfree.chart.labels.XYItemLabelGenerator;
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29
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30 import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
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31
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32 import org.jfree.data.xy.XYDataset;
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33 import org.jfree.data.xy.XYSeries;
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34 import org.jfree.data.xy.XYSeriesCollection;
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35
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36 public class QWSeriesCollection
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37 extends XYSeriesCollection
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38 implements XYItemLabelGenerator
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39 {
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40 public interface LabelGenerator {
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41 String createLabel(QWI qw);
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42 } // interface LabelGenerator
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43
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44 public static class DateFormatLabelGenerator
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45 implements LabelGenerator
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46 {
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47 protected DateFormat format;
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48
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49 public DateFormatLabelGenerator() {
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50 this("dd.MM.yyyy");
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51 }
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52
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53 public DateFormatLabelGenerator(String format) {
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54 this(new SimpleDateFormat(format));
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55 }
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56
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57 public DateFormatLabelGenerator(DateFormat format) {
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58 this.format = format;
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59 }
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60
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61 @Override
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62 public String createLabel(QWI qw) {
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63 Date date = qw.getDate();
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64 return date != null ? format.format(date) : "";
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65 }
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66 } // class DateFormatLabelGenerator
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67
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68 public static final LabelGenerator SIMPLE_GENERATOR =
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69 new DateFormatLabelGenerator();
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70
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71 protected Date minDate;
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72 protected Date maxDate;
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73
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74 protected List<List<QWI>> labels;
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75
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76 protected Rectangle2D area;
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77
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78 protected LabelGenerator labelGenerator;
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79
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80 protected Map<ShapeRenderer.Entry, Integer> knownShapes =
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81 new HashMap<ShapeRenderer.Entry, Integer>();
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82
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83 public QWSeriesCollection() {
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84 labels = new ArrayList<List<QWI>>();
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85 labelGenerator = SIMPLE_GENERATOR;
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86 }
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87
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88 public QWSeriesCollection(LabelGenerator labelGenerator) {
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89 this();
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90 this.labelGenerator = labelGenerator;
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91 }
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92
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93 protected static ShapeRenderer.Entry classify(QWI qw) {
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94 boolean interpolated = qw.getInterpolated();
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95
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96 Shape shape = interpolated
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97 ? ShapeUtils.INTERPOLATED_SHAPE
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98 : ShapeUtils.MEASURED_SHAPE;
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99
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100 boolean filled = !interpolated;
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101 Color color = Color.blue;
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102
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103 return new ShapeRenderer.Entry(shape, color, filled);
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104 }
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105
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106 public void add(QWI qw) {
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107
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108 ShapeRenderer.Entry key = classify(qw);
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109
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110 Integer seriesNo = knownShapes.get(key);
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111
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112 XYSeries series;
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113
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114 if (seriesNo == null) {
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115 seriesNo = Integer.valueOf(getSeriesCount());
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116 knownShapes.put(key, seriesNo);
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117 series = new XYSeries(seriesNo, false);
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118 addSeries(series);
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119 labels.add(new ArrayList<QWI>());
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120 }
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121 else {
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122 series = getSeries(seriesNo);
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123 }
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124
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125 series.add(qw.getQ(), qw.getW());
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126
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127 labels.get(seriesNo).add(qw);
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128
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129 extendDateRange(qw);
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130 extendArea(qw);
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131 }
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132
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133 protected void extendDateRange(QWI qw) {
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134 Date date = qw.getDate();
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135 if (date != null) {
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136 if (minDate == null) {
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137 minDate = maxDate = date;
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138 }
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139 else {
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140 if (date.compareTo(minDate) < 0) {
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141 minDate = date;
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142 }
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143 if (date.compareTo(maxDate) > 0) {
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144 maxDate = date;
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145 }
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146 }
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147 }
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148 }
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149
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150 protected void extendArea(QWI qw) {
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151 if (area == null) {
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152 area = new Rectangle2D.Double(
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153 qw.getQ(), qw.getW(), 0d, 0d);
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154 }
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155 else {
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156 area.add(qw.getQ(), qw.getW());
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157 }
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158 }
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159
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160 public Rectangle2D getArea() {
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161 return area;
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162 }
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163
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164 public Date getMinDate() {
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165 return minDate;
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166 }
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167
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168 public Date getMaxDate() {
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169 return maxDate;
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170 }
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171
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172 public LabelGenerator getLabelGenerator() {
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173 return labelGenerator;
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174 }
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175
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176 @Override
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177 public String generateLabel(XYDataset dataset, int series, int item) {
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178 return labelGenerator.createLabel(labels.get(series).get(item));
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179 }
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180
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181 public StandardXYItemRenderer createRenderer() {
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182 StandardXYItemRenderer renderer = new ShapeRenderer(knownShapes);
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183 renderer.setBaseItemLabelGenerator(this);
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184 renderer.setBaseSeriesVisibleInLegend(false);
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185 renderer.setBaseItemLabelsVisible(true);
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186 return renderer;
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187 }
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188
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189 public static final LegendItem legendItem(
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190 String label,
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191 Paint paint,
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192 Shape shape,
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193 boolean filled
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194 ) {
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195 BasicStroke stroke = new BasicStroke();
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196 return new LegendItem(
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197 label, // label
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198 null, // description
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199 null, // tooltip
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200 null, // url
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201 true, // shape visible
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202 shape, // shape
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203 filled, // shape filled
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204 filled ? paint : Color.white, // fill paint
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205 true, // shape outline
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206 paint, // outline paint
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207 stroke, // outline stroke
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208 false, // line visible
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209 shape, // line
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210 stroke, // line stroke
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211 Color.white);
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212 }
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213
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214 public void addLegendItems(
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215 LegendItemCollection lic,
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216 ShapeRenderer.LabelGenerator lg
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217 ) {
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218 for (ShapeRenderer.Entry entry: knownShapes.keySet()) {
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219 lic.add(legendItem(
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220 lg.createLabel(entry),
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221 entry.getPaint(),
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222 entry.getShape(),
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223 entry.getFilled()));
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224 }
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225 }
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226 }
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227 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org