Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/QWSeriesCollection.java @ 3164:6d0567a8387d

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Label more points in FixingsKMChartService flys-artifacts/trunk@4776 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 25 Jun 2012 13:15:35 +0000
parents 0d8146989012
children 79e7bba0f593
rev   line source
3162
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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.QW;
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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(QW 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(new SimpleDateFormat("dd.MM.yyyy"));
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51 }
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52
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53 public DateFormatLabelGenerator(DateFormat format) {
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54 this.format = format;
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55 }
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56
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57 @Override
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58 public String createLabel(QW qw) {
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59 Date date = qw.getDate();
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60 return date != null ? format.format(date) : "";
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61 }
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62 } // class DateFormatLabelGenerator
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63
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64 public static final LabelGenerator SIMPLE_GENERATOR =
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65 new DateFormatLabelGenerator();
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66
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67 protected Date minDate;
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68 protected Date maxDate;
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69
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70 protected List<List<QW>> labels;
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71
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72 protected Rectangle2D area;
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73
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74 protected LabelGenerator labelGenerator;
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75
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76 protected Map<ShapeRenderer.Entry, Integer> knownShapes =
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77 new HashMap<ShapeRenderer.Entry, Integer>();
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78
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79 public QWSeriesCollection() {
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80 labels = new ArrayList<List<QW>>();
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81 labelGenerator = SIMPLE_GENERATOR;
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82 }
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83
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84 public QWSeriesCollection(LabelGenerator labelGenerator) {
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85 this();
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86 this.labelGenerator = labelGenerator;
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87 }
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88
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89 protected static ShapeRenderer.Entry classify(QW qw) {
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90 boolean interpolated = qw.getInterpolated();
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91
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92 Shape shape = interpolated
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93 ? ShapeUtils.INTERPOLATED_SHAPE
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94 : ShapeUtils.MEASURED_SHAPE;
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95
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96 boolean filled = !interpolated;
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97 Color color = interpolated
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98 ? Color.green
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99 : Color.blue;
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100
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101 return new ShapeRenderer.Entry(shape, color, filled);
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102 }
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103
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104 public void add(QW qw) {
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105
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106 ShapeRenderer.Entry key = classify(qw);
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107
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108 Integer seriesNo = knownShapes.get(key);
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109
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110 XYSeries series;
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111
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112 if (seriesNo == null) {
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113 seriesNo = Integer.valueOf(getSeriesCount());
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114 knownShapes.put(key, seriesNo);
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115 series = new XYSeries(seriesNo, false);
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116 addSeries(series);
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117 labels.add(new ArrayList<QW>());
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118 }
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119 else {
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120 series = getSeries(seriesNo);
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121 }
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122
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123 series.add(qw.getQ(), qw.getW());
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124
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125 labels.get(seriesNo).add(qw);
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126
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127 extendDateRange(qw);
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128 extendArea(qw);
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129 }
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130
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131 protected void extendDateRange(QW qw) {
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132 Date date = qw.getDate();
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133 if (date != null) {
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134 if (minDate == null) {
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135 minDate = maxDate = date;
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136 }
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137 else {
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138 if (date.compareTo(minDate) < 0) {
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139 minDate = date;
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140 }
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141 if (date.compareTo(maxDate) > 0) {
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142 maxDate = date;
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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
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148 protected void extendArea(QW qw) {
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149 if (area == null) {
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150 area = new Rectangle2D.Double(
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151 qw.getQ(), qw.getW(), 0d, 0d);
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152 }
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153 else {
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154 area.add(qw.getQ(), qw.getW());
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155 }
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156 }
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157
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158 public Rectangle2D getArea() {
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159 return area;
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160 }
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161
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162 public Date getMinDate() {
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163 return minDate;
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164 }
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165
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166 public Date getMaxDate() {
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167 return maxDate;
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168 }
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169
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170 public LabelGenerator getLabelGenerator() {
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171 return labelGenerator;
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172 }
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173
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174 @Override
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175 public String generateLabel(XYDataset dataset, int series, int item) {
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176 return labelGenerator.createLabel(labels.get(series).get(item));
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177 }
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178
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179 public StandardXYItemRenderer createRenderer() {
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180 StandardXYItemRenderer renderer = new ShapeRenderer(knownShapes);
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181 renderer.setBaseItemLabelGenerator(this);
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182 renderer.setBaseSeriesVisibleInLegend(false);
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183 renderer.setBaseItemLabelsVisible(true);
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184 return renderer;
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185 }
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186
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187 public static final LegendItem legendItem(
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188 String label,
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189 Paint paint,
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190 Shape shape,
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191 boolean filled
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192 ) {
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193 BasicStroke stroke = new BasicStroke();
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194 return new LegendItem(
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195 label, // label
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196 null, // description
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197 null, // tooltip
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198 null, // url
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199 true, // shape visible
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200 shape, // shape
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201 filled, // shape filled
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202 filled ? paint : Color.white, // fill paint
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203 true, // shape outline
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204 paint, // outline paint
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205 stroke, // outline stroke
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206 false, // line visible
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207 shape, // line
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208 stroke, // line stroke
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209 Color.white);
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210 }
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211
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212 public void addLegendItems(LegendItemCollection lic) {
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213 for (ShapeRenderer.Entry entry: knownShapes.keySet()) {
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214 // TODO: i18n
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215 String label = entry.getFilled()
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216 ? "gemessene Werte"
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217 : "interpolierte Werte";
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218 lic.add(legendItem(
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219 label,
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220 entry.getPaint(),
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221 entry.getShape(),
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222 entry.getFilled()));
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223 }
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224 }
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225 }
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226 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org