Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/ShapeRenderer.java @ 3430:278b5508567e
FixA: fixed aggregation bug in calculation of range spreads.
flys-artifacts/trunk@5090 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Fri, 20 Jul 2012 15:17:16 +0000 |
parents | 0cf647fe2a96 |
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rev | line source |
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1 package de.intevation.flys.jfree; |
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2 |
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3 /** |
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4 * Copyright (c) 2006, 2012 by Intevation GmbH |
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5 * |
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6 * @author Sascha L. Teichmann (teichmann@intevation.de) |
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7 * |
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8 * This program is free software under the LGPL (>=v2.1) |
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9 * Read the file LGPL coming with FLYS for details. |
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10 */ |
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11 |
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12 import java.awt.Font; |
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13 import java.awt.Graphics2D; |
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14 import java.awt.Paint; |
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15 import java.awt.Shape; |
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16 |
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17 import java.awt.geom.Point2D; |
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18 import java.awt.geom.Rectangle2D; |
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19 |
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20 import java.util.ArrayList; |
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21 import java.util.List; |
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22 import java.util.Map; |
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23 |
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24 import org.jfree.chart.axis.ValueAxis; |
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25 |
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26 import org.jfree.chart.labels.ItemLabelPosition; |
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27 import org.jfree.chart.labels.XYItemLabelGenerator; |
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28 |
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29 import org.jfree.chart.plot.CrosshairState; |
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30 import org.jfree.chart.plot.PlotOrientation; |
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31 import org.jfree.chart.plot.PlotRenderingInfo; |
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32 import org.jfree.chart.plot.XYPlot; |
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33 |
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34 import org.jfree.chart.renderer.xy.StandardXYItemRenderer; |
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35 import org.jfree.chart.renderer.xy.XYItemRendererState; |
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36 |
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37 import org.jfree.data.xy.XYDataset; |
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38 |
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39 import org.jfree.text.TextUtilities; |
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40 |
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41 import org.jfree.ui.RectangleEdge; |
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42 |
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43 public class ShapeRenderer |
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44 extends StandardXYItemRenderer { |
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45 |
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46 public static class Entry { |
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47 protected Shape shape; |
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48 protected Shape frame; |
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49 protected Paint paint; |
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50 protected boolean filled; |
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51 |
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52 public Entry( |
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53 Shape shape, |
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54 Paint paint, |
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55 boolean filled |
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56 ) { |
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57 this.shape = shape; |
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58 this.paint = paint; |
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59 this.filled = filled; |
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60 } |
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61 |
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62 public Entry( |
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63 Shape shape, |
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64 Shape frame, |
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65 Paint paint, |
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66 boolean filled |
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67 ) { |
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68 this.shape = shape; |
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69 this.frame = frame; |
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70 this.paint = paint; |
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71 this.filled = filled; |
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72 } |
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73 |
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74 public Shape getShape() { |
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75 return shape; |
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76 } |
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77 |
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78 public void setShape(Shape shape) { |
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79 this.shape = shape; |
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80 } |
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81 |
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82 |
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83 public Paint getPaint() { |
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84 return paint; |
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85 } |
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86 |
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87 public void setPaint(Paint paint) { |
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88 this.paint = paint; |
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89 } |
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90 |
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91 public boolean getFilled() { |
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92 return filled; |
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93 } |
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94 |
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95 public void setFilled(boolean filled) { |
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96 this.filled = filled; |
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97 } |
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98 |
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99 public boolean equals(Object other) { |
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100 Entry entry = (Entry)other; |
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101 return filled == entry.filled |
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102 && paint.equals(entry.paint) |
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103 && shape.equals(entry.shape); |
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104 } |
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105 |
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106 public int hashCode() { |
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107 return |
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108 shape.hashCode() ^ |
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109 paint.hashCode() ^ |
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110 (filled ? 1231 : 1237); |
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111 } |
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112 } // class Entry |
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113 |
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114 public interface LabelGenerator { |
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115 String createLabel(Entry entry); |
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116 } // interface EntryLabelGenerator |
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117 |
3162
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118 protected Entry [] entries; |
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119 |
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120 protected List<Rectangle2D> labelBoundingBoxes; |
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121 |
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122 protected Rectangle2D area; |
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123 |
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124 public ShapeRenderer() { |
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125 this(SHAPES); |
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126 } |
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127 |
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128 public ShapeRenderer(int type) { |
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129 super(type); |
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130 } |
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131 |
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132 public ShapeRenderer(Map<Entry, Integer> map) { |
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133 super(SHAPES); |
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134 setEntries(map); |
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135 } |
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136 |
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137 public void setEntries(Entry [] entries) { |
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138 this.entries = entries; |
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139 } |
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140 |
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141 public void setEntries(Map<Entry, Integer> map) { |
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142 Entry [] entries = new Entry[map.size()]; |
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143 |
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144 for (Map.Entry<Entry, Integer> entry: map.entrySet()) { |
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145 entries[entry.getValue()] = entry.getKey(); |
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146 } |
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147 |
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148 setEntries(entries); |
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149 } |
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150 |
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151 @Override |
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152 public Shape getSeriesShape(int series) { |
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153 return entries[series].shape; |
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154 } |
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155 |
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156 public Shape getSeriesFrame(int series) { |
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157 return entries[series].frame; |
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158 } |
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159 |
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160 @Override |
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161 public Paint getSeriesPaint(int series) { |
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162 return entries[series].paint; |
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163 } |
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164 |
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165 @Override |
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166 public boolean getItemShapeFilled(int series, int item) { |
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167 return entries[series].filled; |
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168 } |
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169 |
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170 @Override |
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171 public XYItemRendererState initialise( |
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172 Graphics2D g2, |
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173 Rectangle2D dataArea, |
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174 XYPlot plot, |
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175 XYDataset data, |
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176 PlotRenderingInfo info |
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177 ) { |
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178 if (labelBoundingBoxes == null) { |
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179 labelBoundingBoxes = new ArrayList<Rectangle2D>(32); |
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180 } |
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181 else { |
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182 labelBoundingBoxes.clear(); |
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183 } |
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184 |
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185 area = dataArea; |
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186 |
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187 return super.initialise(g2, dataArea, plot, data, info); |
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188 } |
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189 |
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190 @Override |
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191 public void drawItem( |
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192 Graphics2D g2, |
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193 XYItemRendererState state, |
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194 Rectangle2D dataArea, |
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195 PlotRenderingInfo info, |
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196 XYPlot plot, |
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197 ValueAxis domainAxis, |
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198 ValueAxis rangeAxis, |
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199 XYDataset dataset, |
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200 int series, |
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201 int item, |
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202 CrosshairState crosshairState, |
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203 int pass |
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204 ) { |
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205 if (!getItemVisible(series, item)) { |
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206 return; |
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207 } |
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208 |
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209 // get the data point... |
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210 double x1 = dataset.getXValue(series, item); |
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211 double y1 = dataset.getYValue(series, item); |
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212 if (Double.isNaN(x1) || Double.isNaN(y1)) { |
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213 return; |
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214 } |
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215 |
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216 RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); |
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217 RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); |
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218 double x = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); |
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219 double y = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); |
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220 |
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221 if (dataArea.contains(x, y)) |
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222 super.drawItem( |
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223 g2, |
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224 state, |
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225 dataArea, |
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226 info, |
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227 plot, |
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228 domainAxis, |
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229 rangeAxis, |
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230 dataset, |
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231 series, |
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232 item, |
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233 crosshairState, |
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234 pass); |
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235 } |
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236 |
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237 protected Point2D shiftBox(Rectangle2D box) { |
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238 |
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239 double cx1 = area.getX(); |
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240 double cy1 = area.getY(); |
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241 double cx2 = cx1 + area.getWidth(); |
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242 double cy2 = cy1 + area.getHeight(); |
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243 |
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244 double bx1 = box.getX(); |
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245 double by1 = box.getY(); |
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246 double bx2 = bx1 + box.getWidth(); |
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247 double by2 = by1 + box.getHeight(); |
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248 |
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249 double dx; |
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250 double dy; |
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251 |
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252 if (bx1 < cx1) { |
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253 dx = cx1 - bx1; |
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254 } |
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255 else if (bx2 > cx2) { |
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256 dx = cx2 - bx2; |
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257 } |
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258 else { |
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259 dx = 0d; |
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260 } |
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261 |
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262 if (by1 < cy1) { |
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263 dy = cy1 - by1; |
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264 } |
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265 else if (by2 > cy2) { |
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266 dy = cy2 - by2; |
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267 } |
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268 else { |
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269 dy = 0d; |
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270 } |
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271 |
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272 return new Point2D.Double(dx, dy); |
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273 } |
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274 |
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275 @Override |
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276 protected void drawItemLabel( |
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277 Graphics2D g2, |
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278 PlotOrientation orientation, |
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279 XYDataset dataset, |
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280 int series, |
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281 int item, |
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282 double x, |
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283 double y, |
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284 boolean negative |
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285 ) { |
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286 XYItemLabelGenerator generator = getItemLabelGenerator(series, item); |
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287 if (generator == null) { |
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288 return; |
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289 } |
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290 |
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291 Font labelFont = getItemLabelFont(series, item); |
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292 |
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293 Paint paint = getItemLabelPaint(series, item); |
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294 |
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295 g2.setFont(labelFont); |
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296 g2.setPaint(paint); |
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297 |
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298 String label = generator.generateLabel(dataset, series, item); |
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299 |
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300 ATTEMPS: for (int attempt = 0; attempt < 2; ++attempt) { |
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301 // get the label position.. |
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302 ItemLabelPosition position = null; |
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303 |
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304 boolean pos; |
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305 switch (attempt) { |
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306 case 0: pos = negative; break; |
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307 case 1: pos = !negative; break; |
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308 default: break ATTEMPS; |
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309 } |
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310 |
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311 if (pos) { |
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312 position = getNegativeItemLabelPosition(series, item); |
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313 } |
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314 else { |
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315 position = getPositiveItemLabelPosition(series, item); |
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316 } |
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317 |
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318 // work out the label anchor point... |
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319 Point2D anchorPoint = calculateLabelAnchorPoint( |
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320 position.getItemLabelAnchor(), x, y, orientation); |
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321 |
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322 Shape labelShape = TextUtilities.calculateRotatedStringBounds( |
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323 label, g2, |
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324 (float)anchorPoint.getX(), (float)anchorPoint.getY(), |
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325 position.getTextAnchor(), position.getAngle(), |
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326 position.getRotationAnchor()); |
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327 |
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328 Rectangle2D bbox = labelShape.getBounds2D(); |
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329 |
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330 Point2D shift = shiftBox(bbox); |
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331 |
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332 bbox = new Rectangle2D.Double( |
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333 bbox.getX() + shift.getX(), |
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334 bbox.getY() + shift.getY(), |
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335 bbox.getWidth(), |
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336 bbox.getHeight()); |
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337 |
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338 if (labelBoundingBoxes != null) { |
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339 for (Rectangle2D old: labelBoundingBoxes) { |
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340 if (old.intersects(bbox)) { |
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341 continue ATTEMPS; |
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342 } |
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343 } |
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344 labelBoundingBoxes.add(bbox); |
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345 } |
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346 |
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347 TextUtilities.drawRotatedString( |
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348 label, g2, |
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349 (float)(anchorPoint.getX() + shift.getX()), |
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350 (float)(anchorPoint.getY() + shift.getY()), |
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351 position.getTextAnchor(), position.getAngle(), |
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352 position.getRotationAnchor()); |
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353 break; |
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354 } |
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355 } |
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356 } |
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357 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |